fix

Co-authored-by: HAOYUatHZ <37070449+HAOYUatHZ@users.noreply.github.com>
Co-authored-by: Péter Garamvölgyi <peter@scroll.io>

.github/workflows/bridge.yml

@@ -5,6 +5,7 @@ on:
     branches:
       - main
       - staging
+      - alpha
     paths:
       - 'bridge/**'
       - '.github/workflows/bridge.yml'
@@ -12,6 +13,7 @@ on:
     branches:
       - main
       - staging
+      - alpha
     paths:
       - 'bridge/**'
       - '.github/workflows/bridge.yml'

.github/workflows/common.yml

@@ -5,6 +5,7 @@ on:
     branches:
       - main
       - staging
+      - alpha
     paths:
       - 'common/**'
       - '.github/workflows/common.yml'
@@ -12,6 +13,7 @@ on:
     branches:
       - main
       - staging
+      - alpha
     paths:
       - 'common/**'
       - '.github/workflows/common.yml'
@@ -26,7 +28,7 @@ jobs:
     steps:
     - uses: actions-rs/toolchain@v1
       with:
-        toolchain: nightly-2022-08-23
+        toolchain: nightly-2022-12-10
         override: true
         components: rustfmt, clippy
     - name: Install Go

.github/workflows/contracts.yaml

@@ -8,6 +8,7 @@ on:
       - prod
       - release/*
       - staging
+      - alpha
     paths:
       - 'contracts/**'
       - '.github/workflows/contracts.yaml'
@@ -18,6 +19,7 @@ on:
       - prod
       - release/*
       - staging
+      - alpha
     paths:
       - 'contracts/**'
       - '.github/workflows/contracts.yaml'

.github/workflows/coordinator.yml

@@ -5,6 +5,7 @@ on:
     branches:
       - main
       - staging
+      - alpha
     paths:
       - 'coordinator/**'
       - '.github/workflows/coordinator.yml'
@@ -12,6 +13,7 @@ on:
     branches:
       - main
       - staging
+      - alpha
     paths:
       - 'coordinator/**'
       - '.github/workflows/coordinator.yml'
@@ -26,7 +28,7 @@ jobs:
     steps:
     - uses: actions-rs/toolchain@v1
       with:
-        toolchain: nightly-2022-08-23
+        toolchain: nightly-2022-12-10
         override: true
         components: rustfmt, clippy
     - name: Install Go

.github/workflows/database.yml

@@ -5,6 +5,7 @@ on:
     branches:
       - main
       - staging
+      - alpha
     paths:
       - 'database/**'
       - '.github/workflows/database.yml'
@@ -12,6 +13,7 @@ on:
     branches:
       - main
       - staging
+      - alpha
     paths:
       - 'database/**'
       - '.github/workflows/database.yml'

.github/workflows/roller.yml

@@ -5,6 +5,7 @@ on:
     branches:
       - main
       - staging
+      - alpha
     paths:
       - 'roller/**'
       - '.github/workflows/roller.yml'
@@ -12,6 +13,7 @@ on:
     branches:
       - main
       - staging
+      - alpha
     paths:
       - 'roller/**'
       - '.github/workflows/roller.yml'
@@ -26,7 +28,7 @@ jobs:
     steps:
     - uses: actions-rs/toolchain@v1
       with:
-        toolchain: nightly-2022-08-23
+        toolchain: nightly-2022-12-10
         override: true
         components: rustfmt, clippy
     - name: Install Go
@@ -42,6 +44,8 @@ jobs:
     - name: Test
       run: |
         make roller
+        export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:./prover/lib
+        export CHAIN_ID=534353
         go test -v ./...
   check:
     runs-on: ubuntu-latest

.gitignore

@@ -3,6 +3,7 @@ assets/params*
 assets/seed
 coverage.txt
 build/bin
+*.integration.txt
 
 # misc
 sftp-config.json

Jenkinsfile

@@ -13,6 +13,8 @@ pipeline {
     environment {
         GO111MODULE = 'on'
         PATH="/home/ubuntu/.cargo/bin:$PATH"
+        LD_LIBRARY_PATH="$LD_LIBRARY_PATH:./coordinator/verifier/lib"
+        CHAIN_ID='534353'
         // LOG_DOCKER = 'true'
     }
     stages {

Makefile

@@ -1,5 +1,7 @@
 .PHONY: check update dev_docker clean
 
+ZKP_VERSION=release-1220
+
 help: ## Display this help message
 	@grep -h \
 		-E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | \
@@ -29,5 +31,15 @@ dev_docker: ## build docker images for development/testing usages
 	docker build -t scroll_l1geth ./common/docker/l1geth/
 	docker build -t scroll_l2geth ./common/docker/l2geth/
 
+test_zkp: ## Test zkp prove and verify, roller/prover generates the proof and coordinator/verifier verifies it
+	mkdir -p test_params
+	wget https://circuit-release.s3.us-west-2.amazonaws.com/circuit-release/${ZKP_VERSION}/test_params/params19 -O ./test_params/params19
+	wget https://circuit-release.s3.us-west-2.amazonaws.com/circuit-release/${ZKP_VERSION}/test_params/params26 -O ./test_params/params26
+	wget https://circuit-release.s3.us-west-2.amazonaws.com/circuit-release/${ZKP_VERSION}/test_seed -O test_seed
+	rm -rf ./roller/assets/test_params && mv test_params ./roller/assets/ && mv test_seed ./roller/assets/
+	cd ./roller && make test-gpu-prover
+	rm -rf ./coordinator/assets/test_params && mv ./roller/assets/test_params ./coordinator/assets/ && mv ./roller/assets/agg_proof ./coordinator/assets/
+	cd ./coordinator && make test-gpu-verifier
+
 clean: ## Empty out the bin folder
 	@rm -rf build/bin

bridge/abi/bridge_abi_test.go

@@ -10,69 +10,74 @@ import (
 	bridge_abi "scroll-tech/bridge/abi"
 )
 
-func TestPackRelayMessageWithProof(t *testing.T) {
+func TestEventSignature(t *testing.T) {
 	assert := assert.New(t)
 
-	l1MessengerABI, err := bridge_abi.L1MessengerMetaData.GetAbi()
+	assert.Equal(bridge_abi.L1SentMessageEventSignature, common.HexToHash("104371f3b442861a2a7b82a070afbbaab748bb13757bf47769e170e37809ec1e"))
+	assert.Equal(bridge_abi.L1RelayedMessageEventSignature, common.HexToHash("4641df4a962071e12719d8c8c8e5ac7fc4d97b927346a3d7a335b1f7517e133c"))
+	assert.Equal(bridge_abi.L1FailedRelayedMessageEventSignature, common.HexToHash("99d0e048484baa1b1540b1367cb128acd7ab2946d1ed91ec10e3c85e4bf51b8f"))
+
+	assert.Equal(bridge_abi.L1CommitBatchEventSignature, common.HexToHash("2cdc615c74452778c0fb6184735e014c13aad2b62774fe0b09bd1dcc2cc14a62"))
+	assert.Equal(bridge_abi.L1FinalizeBatchEventSignature, common.HexToHash("6be443154c959a7a1645b4392b6fa97d8e8ab6e8fd853d7085e8867083737d79"))
+
+	assert.Equal(bridge_abi.L1QueueTransactionEventSignature, common.HexToHash("bdcc7517f8fe3db6506dfd910942d0bbecaf3d6a506dadea65b0d988e75b9439"))
+
+	assert.Equal(bridge_abi.L2SentMessageEventSignature, common.HexToHash("104371f3b442861a2a7b82a070afbbaab748bb13757bf47769e170e37809ec1e"))
+	assert.Equal(bridge_abi.L2RelayedMessageEventSignature, common.HexToHash("4641df4a962071e12719d8c8c8e5ac7fc4d97b927346a3d7a335b1f7517e133c"))
+	assert.Equal(bridge_abi.L2FailedRelayedMessageEventSignature, common.HexToHash("99d0e048484baa1b1540b1367cb128acd7ab2946d1ed91ec10e3c85e4bf51b8f"))
+
+	assert.Equal(bridge_abi.L2ImportBlockEventSignature, common.HexToHash("a7823f45e1ee21f9530b77959b57507ad515a14fa9fa24d262ee80e79b2b5745"))
+
+	assert.Equal(bridge_abi.L2AppendMessageEventSignature, common.HexToHash("faa617c2d8ce12c62637dbce76efcc18dae60574aa95709bdcedce7e76071693"))
+}
+
+func TestPackRelayL2MessageWithProof(t *testing.T) {
+	assert := assert.New(t)
+	l1MessengerABI, err := bridge_abi.L1ScrollMessengerMetaData.GetAbi()
 	assert.NoError(err)
 
 	proof := bridge_abi.IL1ScrollMessengerL2MessageProof{
-		BlockHeight: big.NewInt(0),
-		BatchIndex:  big.NewInt(0),
+		BatchHash:   common.Hash{},
 		MerkleProof: make([]byte, 0),
 	}
-	_, err = l1MessengerABI.Pack("relayMessageWithProof", common.Address{}, common.Address{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), make([]byte, 0), proof)
+	_, err = l1MessengerABI.Pack("relayMessageWithProof", common.Address{}, common.Address{}, big.NewInt(0), big.NewInt(0), make([]byte, 0), proof)
 	assert.NoError(err)
 }
 
 func TestPackCommitBatch(t *testing.T) {
 	assert := assert.New(t)
 
-	l1RollupABI, err := bridge_abi.RollupMetaData.GetAbi()
+	scrollChainABI, err := bridge_abi.ScrollChainMetaData.GetAbi()
 	assert.NoError(err)
 
-	txns := make([]bridge_abi.IZKRollupLayer2Transaction, 5)
-	for i := 0; i < 5; i++ {
-		txns[i] = bridge_abi.IZKRollupLayer2Transaction{
-			Caller:   common.Address{},
-			Target:   common.Address{},
-			Nonce:    0,
-			Gas:      0,
-			GasPrice: big.NewInt(0),
-			Value:    big.NewInt(0),
-			Data:     make([]byte, 0),
-			R:        big.NewInt(0),
-			S:        big.NewInt(0),
-			V:        0,
-		}
+	header := bridge_abi.IScrollChainBlockContext{
+		BlockHash:       common.Hash{},
+		ParentHash:      common.Hash{},
+		BlockNumber:     0,
+		Timestamp:       0,
+		BaseFee:         big.NewInt(0),
+		GasLimit:        0,
+		NumTransactions: 0,
+		NumL1Messages:   0,
 	}
 
-	header := bridge_abi.IZKRollupLayer2BlockHeader{
-		BlockHash:   common.Hash{},
-		ParentHash:  common.Hash{},
-		BaseFee:     big.NewInt(0),
-		StateRoot:   common.Hash{},
-		BlockHeight: 0,
-		GasUsed:     0,
-		Timestamp:   0,
-		ExtraData:   make([]byte, 0),
-		Txs:         txns,
+	batch := bridge_abi.IScrollChainBatch{
+		Blocks:           []bridge_abi.IScrollChainBlockContext{header},
+		PrevStateRoot:    common.Hash{},
+		NewStateRoot:     common.Hash{},
+		WithdrawTrieRoot: common.Hash{},
+		BatchIndex:       0,
+		L2Transactions:   make([]byte, 0),
 	}
 
-	batch := bridge_abi.IZKRollupLayer2Batch{
-		BatchIndex: 0,
-		ParentHash: common.Hash{},
-		Blocks:     []bridge_abi.IZKRollupLayer2BlockHeader{header},
-	}
-
-	_, err = l1RollupABI.Pack("commitBatch", batch)
+	_, err = scrollChainABI.Pack("commitBatch", batch)
 	assert.NoError(err)
 }
 
 func TestPackFinalizeBatchWithProof(t *testing.T) {
 	assert := assert.New(t)
 
-	l1RollupABI, err := bridge_abi.RollupMetaData.GetAbi()
+	l1RollupABI, err := bridge_abi.ScrollChainMetaData.GetAbi()
 	assert.NoError(err)
 
 	proof := make([]*big.Int, 10)
@@ -86,12 +91,43 @@ func TestPackFinalizeBatchWithProof(t *testing.T) {
 	assert.NoError(err)
 }
 
-func TestPackRelayMessage(t *testing.T) {
+func TestPackRelayL1Message(t *testing.T) {
 	assert := assert.New(t)
 
-	l2MessengerABI, err := bridge_abi.L2MessengerMetaData.GetAbi()
+	l2MessengerABI, err := bridge_abi.L2ScrollMessengerMetaData.GetAbi()
 	assert.NoError(err)
 
-	_, err = l2MessengerABI.Pack("relayMessage", common.Address{}, common.Address{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), make([]byte, 0))
+	_, err = l2MessengerABI.Pack("relayMessage", common.Address{}, common.Address{}, big.NewInt(0), big.NewInt(0), make([]byte, 0))
+	assert.NoError(err)
+}
+
+func TestPackSetL1BaseFee(t *testing.T) {
+	assert := assert.New(t)
+
+	l1GasOracleABI, err := bridge_abi.L1GasPriceOracleMetaData.GetAbi()
+	assert.NoError(err)
+
+	baseFee := big.NewInt(2333)
+	_, err = l1GasOracleABI.Pack("setL1BaseFee", baseFee)
+	assert.NoError(err)
+}
+
+func TestPackSetL2BaseFee(t *testing.T) {
+	assert := assert.New(t)
+
+	l2GasOracleABI, err := bridge_abi.L2GasPriceOracleMetaData.GetAbi()
+	assert.NoError(err)
+
+	baseFee := big.NewInt(2333)
+	_, err = l2GasOracleABI.Pack("setL2BaseFee", baseFee)
+	assert.NoError(err)
+}
+
+func TestPackImportBlock(t *testing.T) {
+	assert := assert.New(t)
+
+	l1BlockContainerABI := bridge_abi.L1BlockContainerABI
+
+	_, err := l1BlockContainerABI.Pack("importBlockHeader", common.Hash{}, make([]byte, 0), false)
 	assert.NoError(err)
 }

bridge/cmd/app/app.go

@@ -1,6 +1,7 @@
 package app
 
 import (
+	"context"
 	"fmt"
 	"os"
 	"os/signal"
@@ -10,6 +11,7 @@ import (
 
 	"scroll-tech/database"
 
+	"scroll-tech/common/metrics"
 	"scroll-tech/common/utils"
 	"scroll-tech/common/version"
 
@@ -49,7 +51,10 @@ func action(ctx *cli.Context) error {
 		log.Crit("failed to load config file", "config file", cfgFile, "error", err)
 	}
 
-	// init db connection
+	// Start metrics server.
+	metrics.Serve(context.Background(), ctx)
+
+	// Init db connection.
 	var ormFactory database.OrmFactory
 	if ormFactory, err = database.NewOrmFactory(cfg.DBConfig); err != nil {
 		log.Crit("failed to init db connection", "err", err)

bridge/config.json

@@ -1,49 +1,67 @@
 {
   "l1_config": {
-    "confirmations": 6,
+    "confirmations": "0x6",
     "endpoint": "https://goerli.infura.io/v3/9aa3d95b3bc440fa88ea12eaa4456161",
     "l1_messenger_address": "0x0000000000000000000000000000000000000000",
-    "rollup_contract_address": "0x0000000000000000000000000000000000000000",
+    "l1_message_queue_address": "0x0000000000000000000000000000000000000000",
+    "scroll_chain_address": "0x0000000000000000000000000000000000000000",
     "start_height": 0,
     "relayer_config": {
       "messenger_contract_address": "0x0000000000000000000000000000000000000000",
+      "gas_price_oracle_address": "0x0000000000000000000000000000000000000000",
       "sender_config": {
         "endpoint": "/var/lib/jenkins/workspace/SequencerPipeline/MyPrivateNetwork/geth.ipc",
-        "check_pending_time": 3,
+        "check_pending_time": 2,
         "escalate_blocks": 100,
-        "confirmations": 1,
+        "confirmations": "0x1",
         "escalate_multiple_num": 11,
         "escalate_multiple_den": 10,
         "max_gas_price": 10000000000,
-        "tx_type": "AccessListTx",
+        "tx_type": "LegacyTx",
         "min_balance": 100000000000000000000
       },
+      "gas_oracle_config": {
+        "min_gas_price": 0,
+        "gas_price_diff": 50000
+      },
       "message_sender_private_keys": [
         "1212121212121212121212121212121212121212121212121212121212121212"
+      ],
+      "gas_oracle_sender_private_keys": [
+        "1212121212121212121212121212121212121212121212121212121212121212"
       ]
     }
   },
   "l2_config": {
-    "confirmations": 1,
+    "confirmations": "0x1",
     "endpoint": "/var/lib/jenkins/workspace/SequencerPipeline/MyPrivateNetwork/geth.ipc",
     "l2_messenger_address": "0x0000000000000000000000000000000000000000",
+    "l2_message_queue_address": "0x0000000000000000000000000000000000000000",
     "relayer_config": {
       "rollup_contract_address": "0x0000000000000000000000000000000000000000",
       "messenger_contract_address": "0x0000000000000000000000000000000000000000",
+      "gas_price_oracle_address": "0x0000000000000000000000000000000000000000",
       "sender_config": {
         "endpoint": "https://goerli.infura.io/v3/9aa3d95b3bc440fa88ea12eaa4456161",
         "check_pending_time": 10,
         "escalate_blocks": 100,
-        "confirmations": 6,
+        "confirmations": "0x6",
         "escalate_multiple_num": 11,
         "escalate_multiple_den": 10,
         "max_gas_price": 10000000000,
-        "tx_type": "DynamicFeeTx",
+        "tx_type": "LegacyTx",
         "min_balance": 100000000000000000000
       },
+      "gas_oracle_config": {
+        "min_gas_price": 0,
+        "gas_price_diff": 50000
+      },
       "message_sender_private_keys": [
         "1212121212121212121212121212121212121212121212121212121212121212"
       ],
+      "gas_oracle_sender_private_keys": [
+        "1212121212121212121212121212121212121212121212121212121212121212"
+      ],
       "rollup_sender_private_keys": [
         "1212121212121212121212121212121212121212121212121212121212121212"
       ]
@@ -51,17 +69,21 @@
     "batch_proposer_config": {
       "proof_generation_freq": 1,
       "batch_gas_threshold": 3000000,
-      "batch_tx_num_threshold": 135,
+      "batch_tx_num_threshold": 44,
       "batch_time_sec": 300,
+      "batch_commit_time_sec": 1200,
       "batch_blocks_limit": 100,
-      "skipped_opcodes": [
-        "CREATE2",
-        "DELEGATECALL"
-      ]
+      "commit_tx_calldata_size_limit": 200000,
+      "public_input_config": {
+        "max_tx_num": 44,
+        "padding_tx_hash": "0x0000000000000000000000000000000000000000000000000000000000000000"
+      }
     }
   },
   "db_config": {
     "driver_name": "postgres",
-    "dsn": "postgres://admin:123456@localhost/test?sslmode=disable"
+    "dsn": "postgres://admin:123456@localhost/test?sslmode=disable",
+    "maxOpenNum": 200,
+    "maxIdleNum": 20
   }
-}
+}

bridge/config/config_test.go

@@ -16,11 +16,9 @@ func TestConfig(t *testing.T) {
 	cfg, err := config.NewConfig("../config.json")
 	assert.True(t, assert.NoError(t, err), "failed to load config")
 
-	assert.True(t, len(cfg.L2Config.BatchProposerConfig.SkippedOpcodes) > 0)
-
-	assert.True(t, len(cfg.L1Config.RelayerConfig.MessageSenderPrivateKeys) > 0)
-	assert.True(t, len(cfg.L2Config.RelayerConfig.MessageSenderPrivateKeys) > 0)
-	assert.True(t, len(cfg.L2Config.RelayerConfig.RollupSenderPrivateKeys) > 0)
+	assert.Equal(t, 1, len(cfg.L1Config.RelayerConfig.MessageSenderPrivateKeys))
+	assert.Equal(t, 1, len(cfg.L2Config.RelayerConfig.MessageSenderPrivateKeys))
+	assert.Equal(t, 1, len(cfg.L2Config.RelayerConfig.RollupSenderPrivateKeys))
 
 	data, err := json.Marshal(cfg)
 	assert.NoError(t, err)

bridge/config/l1_config.go

@@ -1,19 +1,24 @@
 package config
 
-import "github.com/scroll-tech/go-ethereum/common"
+import (
+	"github.com/scroll-tech/go-ethereum/common"
+	"github.com/scroll-tech/go-ethereum/rpc"
+)
 
 // L1Config loads l1eth configuration items.
 type L1Config struct {
 	// Confirmations block height confirmations number.
-	Confirmations uint64 `json:"confirmations"`
+	Confirmations rpc.BlockNumber `json:"confirmations"`
 	// l1 eth node url.
 	Endpoint string `json:"endpoint"`
 	// The start height to sync event from layer 1
 	StartHeight uint64 `json:"start_height"`
-	// The messenger contract address deployed on layer 1 chain.
+	// The L1ScrollMessenger contract address deployed on layer 1 chain.
 	L1MessengerAddress common.Address `json:"l1_messenger_address"`
-	// The rollup contract address deployed on layer 1 chain.
-	RollupContractAddress common.Address `json:"rollup_contract_address"`
+	// The L1MessageQueue contract address deployed on layer 1 chain.
+	L1MessageQueueAddress common.Address `json:"l1_message_queue_address"`
+	// The ScrollChain contract address deployed on layer 1 chain.
+	ScrollChainContractAddress common.Address `json:"scroll_chain_address"`
 	// The relayer config
 	RelayerConfig *RelayerConfig `json:"relayer_config"`
 }

bridge/config/l2_config.go

@@ -1,19 +1,23 @@
 package config
 
 import (
-	"encoding/json"
+	"github.com/scroll-tech/go-ethereum/rpc"
 
 	"github.com/scroll-tech/go-ethereum/common"
+
+	"scroll-tech/common/types"
 )
 
 // L2Config loads l2geth configuration items.
 type L2Config struct {
 	// Confirmations block height confirmations number.
-	Confirmations uint64 `json:"confirmations"`
+	Confirmations rpc.BlockNumber `json:"confirmations"`
 	// l2geth node url.
 	Endpoint string `json:"endpoint"`
 	// The messenger contract address deployed on layer 2 chain.
-	L2MessengerAddress common.Address `json:"l2_messenger_address,omitempty"`
+	L2MessengerAddress common.Address `json:"l2_messenger_address"`
+	// The L2MessageQueue contract address deployed on layer 2 chain.
+	L2MessageQueueAddress common.Address `json:"l2_message_queue_address"`
 	// The relayer config
 	RelayerConfig *RelayerConfig `json:"relayer_config"`
 	// The batch_proposer config
@@ -30,44 +34,12 @@ type BatchProposerConfig struct {
 	BatchGasThreshold uint64 `json:"batch_gas_threshold"`
 	// Time waited to generate a batch even if gas_threshold not met
 	BatchTimeSec uint64 `json:"batch_time_sec"`
+	// Time waited to commit batches before the calldata met CommitTxCalldataSizeLimit
+	BatchCommitTimeSec uint64 `json:"batch_commit_time_sec"`
 	// Max number of blocks in a batch
 	BatchBlocksLimit uint64 `json:"batch_blocks_limit"`
-	// Skip generating proof when that opcodes appeared
-	SkippedOpcodes map[string]struct{} `json:"-"`
-}
-
-// batchProposerConfigAlias RelayerConfig alias name
-type batchProposerConfigAlias BatchProposerConfig
-
-// UnmarshalJSON unmarshal BatchProposerConfig config struct.
-func (b *BatchProposerConfig) UnmarshalJSON(input []byte) error {
-	var jsonConfig struct {
-		batchProposerConfigAlias
-		SkippedOpcodes []string `json:"skipped_opcodes,omitempty"`
-	}
-	if err := json.Unmarshal(input, &jsonConfig); err != nil {
-		return err
-	}
-
-	*b = BatchProposerConfig(jsonConfig.batchProposerConfigAlias)
-	b.SkippedOpcodes = make(map[string]struct{}, len(jsonConfig.SkippedOpcodes))
-	for _, opcode := range jsonConfig.SkippedOpcodes {
-		b.SkippedOpcodes[opcode] = struct{}{}
-	}
-	return nil
-}
-
-// MarshalJSON marshal BatchProposerConfig in order to transfer skipOpcodes.
-func (b *BatchProposerConfig) MarshalJSON() ([]byte, error) {
-	jsonConfig := struct {
-		batchProposerConfigAlias
-		SkippedOpcodes []string `json:"skipped_opcodes,omitempty"`
-	}{batchProposerConfigAlias(*b), nil}
-
-	// Load skipOpcodes.
-	for op := range b.SkippedOpcodes {
-		jsonConfig.SkippedOpcodes = append(jsonConfig.SkippedOpcodes, op)
-	}
-
-	return json.Marshal(&jsonConfig)
+	// Commit tx calldata size limit in bytes, target to cap the gas use of commit tx at 2M gas
+	CommitTxCalldataSizeLimit uint64 `json:"commit_tx_calldata_size_limit"`
+	// The public input hash config
+	PublicInputConfig *types.PublicInputHashConfig `json:"public_input_config"`
 }

bridge/config/relayer_config.go

@@ -8,6 +8,7 @@ import (
 
 	"github.com/scroll-tech/go-ethereum/common"
 	"github.com/scroll-tech/go-ethereum/crypto"
+	"github.com/scroll-tech/go-ethereum/rpc"
 )
 
 // SenderConfig The config for transaction sender
@@ -19,7 +20,7 @@ type SenderConfig struct {
 	// The number of blocks to wait to escalate increase gas price of the transaction.
 	EscalateBlocks uint64 `json:"escalate_blocks"`
 	// The gap number between a block be confirmed and the latest block.
-	Confirmations uint64 `json:"confirmations"`
+	Confirmations rpc.BlockNumber `json:"confirmations"`
 	// The numerator of gas price escalate multiple.
 	EscalateMultipleNum uint64 `json:"escalate_multiple_num"`
 	// The denominator of gas price escalate multiple.
@@ -40,11 +41,24 @@ type RelayerConfig struct {
 	RollupContractAddress common.Address `json:"rollup_contract_address,omitempty"`
 	// MessengerContractAddress store the scroll messenger contract address.
 	MessengerContractAddress common.Address `json:"messenger_contract_address"`
+	// GasPriceOracleContractAddress store the scroll messenger contract address.
+	GasPriceOracleContractAddress common.Address `json:"gas_price_oracle_contract_address"`
 	// sender config
 	SenderConfig *SenderConfig `json:"sender_config"`
+	// gas oracle config
+	GasOracleConfig *GasOracleConfig `json:"gas_oracle_config"`
 	// The private key of the relayer
-	MessageSenderPrivateKeys []*ecdsa.PrivateKey `json:"-"`
-	RollupSenderPrivateKeys  []*ecdsa.PrivateKey `json:"-"`
+	MessageSenderPrivateKeys   []*ecdsa.PrivateKey `json:"-"`
+	GasOracleSenderPrivateKeys []*ecdsa.PrivateKey `json:"-"`
+	RollupSenderPrivateKeys    []*ecdsa.PrivateKey `json:"-"`
+}
+
+// GasOracleConfig The config for updating gas price oracle.
+type GasOracleConfig struct {
+	// MinGasPrice store the minimum gas price to set.
+	MinGasPrice uint64 `json:"min_gas_price"`
+	// GasPriceDiff store the percentage of gas price difference.
+	GasPriceDiff uint64 `json:"gas_price_diff"`
 }
 
 // relayerConfigAlias RelayerConfig alias name
@@ -55,15 +69,17 @@ func (r *RelayerConfig) UnmarshalJSON(input []byte) error {
 	var jsonConfig struct {
 		relayerConfigAlias
 		// The private key of the relayer
-		MessageSenderPrivateKeys []string `json:"message_sender_private_keys"`
-		RollupSenderPrivateKeys  []string `json:"rollup_sender_private_keys,omitempty"`
+		MessageSenderPrivateKeys   []string `json:"message_sender_private_keys"`
+		GasOracleSenderPrivateKeys []string `json:"gas_oracle_sender_private_keys"`
+		RollupSenderPrivateKeys    []string `json:"rollup_sender_private_keys,omitempty"`
 	}
 	if err := json.Unmarshal(input, &jsonConfig); err != nil {
 		return err
 	}
 
-	// Get messenger private key list.
 	*r = RelayerConfig(jsonConfig.relayerConfigAlias)
+
+	// Get messenger private key list.
 	for _, privStr := range jsonConfig.MessageSenderPrivateKeys {
 		priv, err := crypto.ToECDSA(common.FromHex(privStr))
 		if err != nil {
@@ -72,6 +88,15 @@ func (r *RelayerConfig) UnmarshalJSON(input []byte) error {
 		r.MessageSenderPrivateKeys = append(r.MessageSenderPrivateKeys, priv)
 	}
 
+	// Get gas oracle private key list.
+	for _, privStr := range jsonConfig.GasOracleSenderPrivateKeys {
+		priv, err := crypto.ToECDSA(common.FromHex(privStr))
+		if err != nil {
+			return fmt.Errorf("incorrect private_key_list format, err: %v", err)
+		}
+		r.GasOracleSenderPrivateKeys = append(r.GasOracleSenderPrivateKeys, priv)
+	}
+
 	// Get rollup private key
 	for _, privStr := range jsonConfig.RollupSenderPrivateKeys {
 		priv, err := crypto.ToECDSA(common.FromHex(privStr))
@@ -89,15 +114,21 @@ func (r *RelayerConfig) MarshalJSON() ([]byte, error) {
 	jsonConfig := struct {
 		relayerConfigAlias
 		// The private key of the relayer
-		MessageSenderPrivateKeys []string `json:"message_sender_private_keys"`
-		RollupSenderPrivateKeys  []string `json:"rollup_sender_private_keys,omitempty"`
-	}{relayerConfigAlias(*r), nil, nil}
+		MessageSenderPrivateKeys   []string `json:"message_sender_private_keys"`
+		GasOracleSenderPrivateKeys []string `json:"gas_oracle_sender_private_keys,omitempty"`
+		RollupSenderPrivateKeys    []string `json:"rollup_sender_private_keys,omitempty"`
+	}{relayerConfigAlias(*r), nil, nil, nil}
 
 	// Transfer message sender private keys to hex type.
 	for _, priv := range r.MessageSenderPrivateKeys {
 		jsonConfig.MessageSenderPrivateKeys = append(jsonConfig.MessageSenderPrivateKeys, common.Bytes2Hex(crypto.FromECDSA(priv)))
 	}
 
+	// Transfer rollup sender private keys to hex type.
+	for _, priv := range r.GasOracleSenderPrivateKeys {
+		jsonConfig.GasOracleSenderPrivateKeys = append(jsonConfig.GasOracleSenderPrivateKeys, common.Bytes2Hex(crypto.FromECDSA(priv)))
+	}
+
 	// Transfer rollup sender private keys to hex type.
 	for _, priv := range r.RollupSenderPrivateKeys {
 		jsonConfig.RollupSenderPrivateKeys = append(jsonConfig.RollupSenderPrivateKeys, common.Bytes2Hex(crypto.FromECDSA(priv)))

bridge/go.mod

@@ -3,43 +3,39 @@ module scroll-tech/bridge
 go 1.18
 
 require (
-	github.com/iden3/go-iden3-crypto v0.0.13
 	github.com/orcaman/concurrent-map v1.0.0
-	github.com/scroll-tech/go-ethereum v1.10.14-0.20230112091133-2891916a0f81
+	github.com/scroll-tech/go-ethereum v1.10.14-0.20230220082843-ec9254b0b1c6
 	github.com/stretchr/testify v1.8.0
-	github.com/urfave/cli/v2 v2.10.2
+	github.com/urfave/cli/v2 v2.17.2-0.20221006022127-8f469abc00aa
 	golang.org/x/sync v0.1.0
 	modernc.org/mathutil v1.4.1
 )
 
 require (
 	github.com/btcsuite/btcd v0.20.1-beta // indirect
-	github.com/cespare/xxhash/v2 v2.1.2 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/deckarep/golang-set v1.8.0 // indirect
-	github.com/ethereum/go-ethereum v1.10.26 // indirect
+	github.com/ethereum/go-ethereum v1.11.1 // indirect
 	github.com/go-ole/go-ole v1.2.6 // indirect
-	github.com/go-stack/stack v1.8.0 // indirect
+	github.com/go-stack/stack v1.8.1 // indirect
 	github.com/google/uuid v1.3.0 // indirect
 	github.com/gorilla/websocket v1.5.0 // indirect
 	github.com/holiman/uint256 v1.2.0 // indirect
-	github.com/kr/pretty v0.3.0 // indirect
-	github.com/mattn/go-isatty v0.0.14 // indirect
+	github.com/iden3/go-iden3-crypto v0.0.13 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0 // indirect
 	github.com/rjeczalik/notify v0.9.1 // indirect
-	github.com/rogpeppe/go-internal v1.8.1 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
-	github.com/scroll-tech/zktrie v0.3.1 // indirect
+	github.com/scroll-tech/zktrie v0.5.0 // indirect
 	github.com/shirou/gopsutil v3.21.11+incompatible // indirect
 	github.com/tklauser/go-sysconf v0.3.10 // indirect
 	github.com/tklauser/numcpus v0.4.0 // indirect
 	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
 	github.com/yusufpapurcu/wmi v1.2.2 // indirect
-	golang.org/x/crypto v0.5.0 // indirect
-	golang.org/x/sys v0.4.0 // indirect
+	golang.org/x/crypto v0.6.0 // indirect
+	golang.org/x/sys v0.5.0 // indirect
 	gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

bridge/go.sum

@@ -71,10 +71,10 @@ github.com/c-bata/go-prompt v0.2.2/go.mod h1:VzqtzE2ksDBcdln8G7mk2RX9QyGjH+OVqOC
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/cespare/cp v0.1.0 h1:SE+dxFebS7Iik5LK0tsi1k9ZCxEaFX4AjQmoyA+1dJk=
 github.com/cespare/cp v0.1.0/go.mod h1:SOGHArjBr4JWaSDEVpWpo/hNg6RoKrls6Oh40hiwW+s=
+github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
-github.com/cespare/xxhash/v2 v2.1.2 h1:YRXhKfTDauu4ajMg1TPgFO5jnlC2HCbmLXMcTG5cbYE=
-github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
 github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
 github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
 github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
@@ -111,8 +111,8 @@ github.com/edsrzf/mmap-go v1.0.0/go.mod h1:YO35OhQPt3KJa3ryjFM5Bs14WD66h8eGKpfaB
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/ethereum/go-ethereum v1.10.13/go.mod h1:W3yfrFyL9C1pHcwY5hmRHVDaorTiQxhYBkKyu5mEDHw=
-github.com/ethereum/go-ethereum v1.10.26 h1:i/7d9RBBwiXCEuyduBQzJw/mKmnvzsN14jqBmytw72s=
-github.com/ethereum/go-ethereum v1.10.26/go.mod h1:EYFyF19u3ezGLD4RqOkLq+ZCXzYbLoNDdZlMt7kyKFg=
+github.com/ethereum/go-ethereum v1.11.1 h1:EMymmWFzpS7G9l9NvVN8G73cgdUIqDPNRf2YTSGBXlk=
+github.com/ethereum/go-ethereum v1.11.1/go.mod h1:DuefStAgaxoaYGLR0FueVcVbehmn5n9QUcVrMCuOvuc=
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 github.com/fjl/memsize v0.0.0-20190710130421-bcb5799ab5e5 h1:FtmdgXiUlNeRsoNMFlKLDt+S+6hbjVMEW6RGQ7aUf7c=
 github.com/fjl/memsize v0.0.0-20190710130421-bcb5799ab5e5/go.mod h1:VvhXpOYNQvB+uIk2RvXzuaQtkQJzzIx6lSBe1xv7hi0=
@@ -139,8 +139,9 @@ github.com/go-openapi/jsonpointer v0.19.5/go.mod h1:Pl9vOtqEWErmShwVjC8pYs9cog34
 github.com/go-openapi/swag v0.19.5/go.mod h1:POnQmlKehdgb5mhVOsnJFsivZCEZ/vjK9gh66Z9tfKk=
 github.com/go-sourcemap/sourcemap v2.1.3+incompatible/go.mod h1:F8jJfvm2KbVjc5NqelyYJmf/v5J0dwNLS2mL4sNA1Jg=
 github.com/go-sql-driver/mysql v1.4.1/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w=
-github.com/go-stack/stack v1.8.0 h1:5SgMzNM5HxrEjV0ww2lTmX6E2Izsfxas4+YHWRs3Lsk=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
+github.com/go-stack/stack v1.8.1 h1:ntEHSVwIt7PNXNpgPmVfMrNhLtgjlmnZha2kOpuRiDw=
+github.com/go-stack/stack v1.8.1/go.mod h1:dcoOX6HbPZSZptuspn9bctJ+N/CnF5gGygcUP3XYfe4=
 github.com/gofrs/uuid v3.3.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/gogo/protobuf v1.3.1/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXPKa29o=
@@ -250,8 +251,7 @@ github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxv
 github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
-github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
-github.com/kr/pretty v0.3.0/go.mod h1:640gp4NfQd8pI5XOwp5fnNeVWj67G7CFk/SaSQn7NBk=
+github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
@@ -268,16 +268,15 @@ github.com/matryer/moq v0.0.0-20190312154309-6cfb0558e1bd/go.mod h1:9ELz6aaclSIG
 github.com/mattn/go-colorable v0.0.9/go.mod h1:9vuHe8Xs5qXnSaW/c/ABM9alt+Vo+STaOChaDxuIBZU=
 github.com/mattn/go-colorable v0.1.2/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
 github.com/mattn/go-colorable v0.1.7/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
-github.com/mattn/go-colorable v0.1.8 h1:c1ghPdyEDarC70ftn0y+A/Ee++9zz8ljHG1b13eJ0s8=
 github.com/mattn/go-colorable v0.1.8/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
+github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
 github.com/mattn/go-ieproxy v0.0.0-20190610004146-91bb50d98149/go.mod h1:31jz6HNzdxOmlERGGEc4v/dMssOfmp2p5bT/okiKFFc=
 github.com/mattn/go-ieproxy v0.0.0-20190702010315-6dee0af9227d/go.mod h1:31jz6HNzdxOmlERGGEc4v/dMssOfmp2p5bT/okiKFFc=
 github.com/mattn/go-isatty v0.0.4/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
 github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
 github.com/mattn/go-isatty v0.0.9/go.mod h1:YNRxwqDuOph6SZLI9vUUz6OYw3QyUt7WiY2yME+cCiQ=
 github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
-github.com/mattn/go-isatty v0.0.14 h1:yVuAays6BHfxijgZPzw+3Zlu5yQgKGP2/hcQbHb7S9Y=
-github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
+github.com/mattn/go-isatty v0.0.16 h1:bq3VjFmv/sOjHtdEhmkEV4x1AJtvUvOJ2PFAZ5+peKQ=
 github.com/mattn/go-runewidth v0.0.3/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
 github.com/mattn/go-runewidth v0.0.9 h1:Lm995f3rfxdpd6TSmuVCHVb/QhupuXlYr8sCI/QdE+0=
 github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
@@ -316,7 +315,6 @@ github.com/peterh/liner v1.0.1-0.20180619022028-8c1271fcf47f/go.mod h1:xIteQHvHu
 github.com/peterh/liner v1.1.1-0.20190123174540-a2c9a5303de7/go.mod h1:CRroGNssyjTd/qIG2FyxByd2S8JEAZXBl4qUrZf8GS0=
 github.com/philhofer/fwd v1.0.0/go.mod h1:gk3iGcWd9+svBvR0sR+KPcfE+RNWozjowpeBVG3ZVNU=
 github.com/pierrec/lz4 v2.0.5+incompatible/go.mod h1:pdkljMzZIN41W+lC3N2tnIh5sFi+IEE17M5jbnwPHcY=
-github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=
 github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
@@ -342,19 +340,16 @@ github.com/retailnext/hllpp v1.0.1-0.20180308014038-101a6d2f8b52/go.mod h1:RDpi1
 github.com/rjeczalik/notify v0.9.1 h1:CLCKso/QK1snAlnhNR/CNvNiFU2saUtjV0bx3EwNeCE=
 github.com/rjeczalik/notify v0.9.1/go.mod h1:rKwnCoCGeuQnwBtTSPL9Dad03Vh2n40ePRrjvIXnJho=
 github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
-github.com/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=
-github.com/rogpeppe/go-internal v1.8.1 h1:geMPLpDpQOgVyCg5z5GoRwLHepNdb71NXb67XFkP+Eg=
-github.com/rogpeppe/go-internal v1.8.1/go.mod h1:JeRgkft04UBgHMgCIwADu4Pn6Mtm5d4nPKWu0nJ5d+o=
+github.com/rogpeppe/go-internal v1.9.0 h1:73kH8U+JUqXU8lRuOHeVHaa/SZPifC7BkcraZVejAe8=
 github.com/rs/cors v1.7.0 h1:+88SsELBHx5r+hZ8TCkggzSstaWNbDvThkVK8H6f9ik=
 github.com/rs/cors v1.7.0/go.mod h1:gFx+x8UowdsKA9AchylcLynDq+nNFfI8FkUZdN/jGCU=
 github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
-github.com/scroll-tech/go-ethereum v1.10.14-0.20230112091133-2891916a0f81 h1:Gm18RZ9WTR2Dupumr60E2m1Noe+l9/lITt6iRyxxZoc=
-github.com/scroll-tech/go-ethereum v1.10.14-0.20230112091133-2891916a0f81/go.mod h1:jurIpDQ0hqtp9//xxeWzr8X9KMP/+TYn+vz3K1wZrv0=
-github.com/scroll-tech/zktrie v0.3.0/go.mod h1:CuJFlG1/soTJJBAySxCZgTF7oPvd5qF6utHOEciC43Q=
-github.com/scroll-tech/zktrie v0.3.1 h1:HlR+fMBdjXX1/7cUMqpUgGEhGy/3vN1JpwQ0ovg/Ys8=
-github.com/scroll-tech/zktrie v0.3.1/go.mod h1:CuJFlG1/soTJJBAySxCZgTF7oPvd5qF6utHOEciC43Q=
+github.com/scroll-tech/go-ethereum v1.10.14-0.20230220082843-ec9254b0b1c6 h1:2kXWJR+mOj09HBh5sUTb4L/OURPSXoQd1NC/10v7otM=
+github.com/scroll-tech/go-ethereum v1.10.14-0.20230220082843-ec9254b0b1c6/go.mod h1:eW+eyNdMoO0MyuczCc9xWSnW8dPJ0kOy5xsxgOKYEaA=
+github.com/scroll-tech/zktrie v0.5.0 h1:dABDR6lMZq6Hs+fWQSiHbX8s3AOX6hY+5nkhSYm5rmU=
+github.com/scroll-tech/zktrie v0.5.0/go.mod h1:XvNo7vAk8yxNyTjBDj5WIiFzYW4bx/gJ78+NK6Zn6Uk=
 github.com/segmentio/kafka-go v0.1.0/go.mod h1:X6itGqS9L4jDletMsxZ7Dz+JFWxM6JHfPOCvTvk+EJo=
 github.com/segmentio/kafka-go v0.2.0/go.mod h1:X6itGqS9L4jDletMsxZ7Dz+JFWxM6JHfPOCvTvk+EJo=
 github.com/sergi/go-diff v1.0.0/go.mod h1:0CfEIISq7TuYL3j771MWULgwwjU+GofnZX9QAmXWZgo=
@@ -369,8 +364,8 @@ github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72/go.mod h1:JwIasO
 github.com/spf13/cast v1.3.0/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkUJE=
 github.com/spf13/cobra v0.0.3/go.mod h1:1l0Ry5zgKvJasoi3XT1TypsSe7PqH0Sj9dhYf7v3XqQ=
 github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
-github.com/status-im/keycard-go v0.0.0-20190316090335-8537d3370df4 h1:Gb2Tyox57NRNuZ2d3rmvB3pcmbu7O1RS3m8WRx7ilrg=
 github.com/status-im/keycard-go v0.0.0-20190316090335-8537d3370df4/go.mod h1:RZLeN1LMWmRsyYjvAu+I6Dm9QmlDaIIt+Y+4Kd7Tp+Q=
+github.com/status-im/keycard-go v0.2.0 h1:QDLFswOQu1r5jsycloeQh3bVU8n/NatHHaZobtDnDzA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
@@ -392,11 +387,11 @@ github.com/tklauser/go-sysconf v0.3.10/go.mod h1:C8XykCvCb+Gn0oNCWPIlcb0RuglQTYa
 github.com/tklauser/numcpus v0.2.2/go.mod h1:x3qojaO3uyYt0i56EW/VUYs7uBvdl2fkfZFu0T9wgjM=
 github.com/tklauser/numcpus v0.4.0 h1:E53Dm1HjH1/R2/aoCtXtPgzmElmn51aOkhCFSuZq//o=
 github.com/tklauser/numcpus v0.4.0/go.mod h1:1+UI3pD8NW14VMwdgJNJ1ESk2UnwhAnz5hMwiKKqXCQ=
-github.com/tyler-smith/go-bip39 v1.0.1-0.20181017060643-dbb3b84ba2ef h1:wHSqTBrZW24CsNJDfeh9Ex6Pm0Rcpc7qrgKBiL44vF4=
 github.com/tyler-smith/go-bip39 v1.0.1-0.20181017060643-dbb3b84ba2ef/go.mod h1:sJ5fKU0s6JVwZjjcUEX2zFOnvq0ASQ2K9Zr6cf67kNs=
+github.com/tyler-smith/go-bip39 v1.1.0 h1:5eUemwrMargf3BSLRRCalXT93Ns6pQJIjYQN2nyfOP8=
 github.com/urfave/cli/v2 v2.3.0/go.mod h1:LJmUH05zAU44vOAcrfzZQKsZbVcdbOG8rtL3/XcUArI=
-github.com/urfave/cli/v2 v2.10.2 h1:x3p8awjp/2arX+Nl/G2040AZpOCHS/eMJJ1/a+mye4Y=
-github.com/urfave/cli/v2 v2.10.2/go.mod h1:f8iq5LtQ/bLxafbdBSLPPNsgaW0l/2fYYEHhAyPlwvo=
+github.com/urfave/cli/v2 v2.17.2-0.20221006022127-8f469abc00aa h1:5SqCsI/2Qya2bCzK15ozrqo2sZxkh0FHynJZOTVoV6Q=
+github.com/urfave/cli/v2 v2.17.2-0.20221006022127-8f469abc00aa/go.mod h1:1CNUng3PtjQMtRzJO4FMXBQvkGtuYRxxiR9xMa7jMwI=
 github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
 github.com/valyala/fasttemplate v1.0.1/go.mod h1:UQGH1tvbgY+Nz5t2n7tXsz52dQxojPUpymEIMZ47gx8=
 github.com/valyala/fasttemplate v1.2.1/go.mod h1:KHLXt3tVN2HBp8eijSv/kGJopbvo7S+qRAEEKiv+SiQ=
@@ -425,8 +420,8 @@ golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a/go.mod h1:LzIPMQfyMNhhGPh
 golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=
 golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4=
 golang.org/x/crypto v0.0.0-20211117183948-ae814b36b871/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
-golang.org/x/crypto v0.5.0 h1:U/0M97KRkSFvyD/3FSmdP5W5swImpNgle/EHFhOsQPE=
-golang.org/x/crypto v0.5.0/go.mod h1:NK/OQwhpMQP3MwtdjgLlYHnH9ebylxKWv3e0fK+mkQU=
+golang.org/x/crypto v0.6.0 h1:qfktjS5LUO+fFKeJXZ+ikTRijMmljikvG68fpMMruSc=
+golang.org/x/crypto v0.6.0/go.mod h1:OFC/31mSvZgRz0V1QTNCzfAI1aIRzbiufJtkMIlEp58=
 golang.org/x/exp v0.0.0-20180321215751-8460e604b9de/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20180807140117-3d87b88a115f/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
@@ -535,14 +530,13 @@ golang.org/x/sys v0.0.0-20210324051608-47abb6519492/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210420205809-ac73e9fd8988/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210816183151-1e6c022a8912/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220128215802-99c3d69c2c27/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.4.0 h1:Zr2JFtRQNX3BCZ8YtxRE9hNJYC8J6I1MVbMg6owUp18=
-golang.org/x/sys v0.4.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.5.0 h1:MUK/U/4lj1t1oPg0HfuXDN/Z1wv31ZJ/YcPiGccS4DU=
+golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
@@ -554,12 +548,12 @@ golang.org/x/text v0.3.4/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/text v0.6.0 h1:3XmdazWV+ubf7QgHSTWeykHOci5oeekaGJBLkrkaw4k=
+golang.org/x/text v0.7.0 h1:4BRB4x83lYWy72KwLD/qYDuTu7q9PjSagHvijDw7cLo=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20201208040808-7e3f01d25324/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
-golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba h1:O8mE0/t419eoIwhTFpKVkHiTs/Igowgfkj25AcZrtiE=
 golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
+golang.org/x/time v0.0.0-20220922220347-f3bd1da661af h1:Yx9k8YCG3dvF87UAn2tu2HQLf2dt/eR1bXxpLMWeH+Y=
 golang.org/x/tools v0.0.0-20180525024113-a5b4c53f6e8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20181030221726-6c7e314b6563/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=

bridge/l1/backend.go

@@ -26,12 +26,12 @@ func New(ctx context.Context, cfg *config.L1Config, orm database.OrmFactory) (*B
 		return nil, err
 	}
 
-	relayer, err := NewLayer1Relayer(ctx, client, int64(cfg.Confirmations), orm, cfg.RelayerConfig)
+	relayer, err := NewLayer1Relayer(ctx, orm, cfg.RelayerConfig)
 	if err != nil {
 		return nil, err
 	}
 
-	watcher := NewWatcher(ctx, client, cfg.StartHeight, cfg.Confirmations, cfg.L1MessengerAddress, cfg.RollupContractAddress, orm)
+	watcher := NewWatcher(ctx, client, cfg.StartHeight, cfg.Confirmations, cfg.L1MessengerAddress, cfg.L1MessageQueueAddress, cfg.ScrollChainContractAddress, orm)
 
 	return &Backend{
 		cfg:     cfg,

bridge/l1/relayer.go

@@ -11,16 +11,23 @@ import (
 	"github.com/scroll-tech/go-ethereum/accounts/abi"
 	"github.com/scroll-tech/go-ethereum/common"
 	"github.com/scroll-tech/go-ethereum/crypto"
-	"github.com/scroll-tech/go-ethereum/ethclient"
 	"github.com/scroll-tech/go-ethereum/log"
 
-	"scroll-tech/database/orm"
+	"scroll-tech/common/types"
+
+	"scroll-tech/database"
 
 	bridge_abi "scroll-tech/bridge/abi"
 	"scroll-tech/bridge/config"
 	"scroll-tech/bridge/sender"
 )
 
+const (
+	gasPriceDiffPrecision = 1000000
+
+	defaultGasPriceDiff = 50000 // 5%
+)
+
 // Layer1Relayer is responsible for
 //  1. fetch pending L1Message from db
 //  2. relay pending message to layer 2 node
@@ -28,51 +35,78 @@ import (
 // Actions are triggered by new head from layer 1 geth node.
 // @todo It's better to be triggered by watcher.
 type Layer1Relayer struct {
-	ctx    context.Context
-	client *ethclient.Client
-	sender *sender.Sender
+	ctx context.Context
 
-	db  orm.L1MessageOrm
+	db  database.OrmFactory
 	cfg *config.RelayerConfig
 
 	// channel used to communicate with transaction sender
-	confirmationCh <-chan *sender.Confirmation
+	messageSender  *sender.Sender
+	messageCh      <-chan *sender.Confirmation
 	l2MessengerABI *abi.ABI
 
+	gasOracleSender *sender.Sender
+	gasOracleCh     <-chan *sender.Confirmation
+	l1GasOracleABI  *abi.ABI
+
+	lastGasPrice uint64
+	minGasPrice  uint64
+	gasPriceDiff uint64
+
 	stopCh chan struct{}
 }
 
 // NewLayer1Relayer will return a new instance of Layer1RelayerClient
-func NewLayer1Relayer(ctx context.Context, ethClient *ethclient.Client, l1ConfirmNum int64, db orm.L1MessageOrm, cfg *config.RelayerConfig) (*Layer1Relayer, error) {
-	l2MessengerABI, err := bridge_abi.L2MessengerMetaData.GetAbi()
+func NewLayer1Relayer(ctx context.Context, db database.OrmFactory, cfg *config.RelayerConfig) (*Layer1Relayer, error) {
+	messageSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.MessageSenderPrivateKeys)
 	if err != nil {
-		log.Warn("new L2MessengerABI failed", "err", err)
+		addr := crypto.PubkeyToAddress(cfg.MessageSenderPrivateKeys[0].PublicKey)
+		log.Error("new MessageSender failed", "main address", addr.String(), "err", err)
 		return nil, err
 	}
 
-	sender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.MessageSenderPrivateKeys)
+	// @todo make sure only one sender is available
+	gasOracleSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.GasOracleSenderPrivateKeys)
 	if err != nil {
-		addr := crypto.PubkeyToAddress(cfg.MessageSenderPrivateKeys[0].PublicKey)
-		log.Error("new sender failed", "main address", addr.String(), "err", err)
+		addr := crypto.PubkeyToAddress(cfg.GasOracleSenderPrivateKeys[0].PublicKey)
+		log.Error("new GasOracleSender failed", "main address", addr.String(), "err", err)
 		return nil, err
 	}
 
+	var minGasPrice uint64
+	var gasPriceDiff uint64
+	if cfg.GasOracleConfig != nil {
+		minGasPrice = cfg.GasOracleConfig.MinGasPrice
+		gasPriceDiff = cfg.GasOracleConfig.GasPriceDiff
+	} else {
+		minGasPrice = 0
+		gasPriceDiff = defaultGasPriceDiff
+	}
+
 	return &Layer1Relayer{
-		ctx:            ctx,
-		client:         ethClient,
-		sender:         sender,
-		db:             db,
-		l2MessengerABI: l2MessengerABI,
-		cfg:            cfg,
-		stopCh:         make(chan struct{}),
-		confirmationCh: sender.ConfirmChan(),
+		ctx: ctx,
+		db:  db,
+
+		messageSender:  messageSender,
+		messageCh:      messageSender.ConfirmChan(),
+		l2MessengerABI: bridge_abi.L2ScrollMessengerABI,
+
+		gasOracleSender: gasOracleSender,
+		gasOracleCh:     gasOracleSender.ConfirmChan(),
+		l1GasOracleABI:  bridge_abi.L1GasPriceOracleABI,
+
+		minGasPrice:  minGasPrice,
+		gasPriceDiff: gasPriceDiff,
+
+		cfg:    cfg,
+		stopCh: make(chan struct{}),
 	}, nil
 }
 
 // ProcessSavedEvents relays saved un-processed cross-domain transactions to desired blockchain
 func (r *Layer1Relayer) ProcessSavedEvents() {
 	// msgs are sorted by nonce in increasing order
-	msgs, err := r.db.GetL1MessagesByStatus(orm.MsgPending, 100)
+	msgs, err := r.db.GetL1MessagesByStatus(types.MsgPending, 100)
 	if err != nil {
 		log.Error("Failed to fetch unprocessed L1 messages", "err", err)
 		return
@@ -92,74 +126,138 @@ func (r *Layer1Relayer) ProcessSavedEvents() {
 	}
 }
 
-func (r *Layer1Relayer) processSavedEvent(msg *orm.L1Message) error {
-	// @todo add support to relay multiple messages
-	from := common.HexToAddress(msg.Sender)
-	target := common.HexToAddress(msg.Target)
-	value, ok := big.NewInt(0).SetString(msg.Value, 10)
-	if !ok {
-		// @todo maybe panic?
-		log.Error("Failed to parse message value", "msg.nonce", msg.Nonce, "msg.height", msg.Height)
-		// TODO: need to skip this message by changing its status to MsgError
-	}
-	fee, _ := big.NewInt(0).SetString(msg.Fee, 10)
-	deadline := big.NewInt(int64(msg.Deadline))
-	msgNonce := big.NewInt(int64(msg.Nonce))
+func (r *Layer1Relayer) processSavedEvent(msg *types.L1Message) error {
 	calldata := common.Hex2Bytes(msg.Calldata)
-	data, err := r.l2MessengerABI.Pack("relayMessage", from, target, value, fee, deadline, msgNonce, calldata)
-	if err != nil {
-		log.Error("Failed to pack relayMessage", "msg.nonce", msg.Nonce, "msg.height", msg.Height, "err", err)
-		// TODO: need to skip this message by changing its status to MsgError
-		return err
-	}
 
-	hash, err := r.sender.SendTransaction(msg.MsgHash, &r.cfg.MessengerContractAddress, big.NewInt(0), data)
+	hash, err := r.messageSender.SendTransaction(msg.MsgHash, &r.cfg.MessengerContractAddress, big.NewInt(0), calldata)
 	if err != nil && err.Error() == "execution reverted: Message expired" {
-		return r.db.UpdateLayer1Status(r.ctx, msg.MsgHash, orm.MsgExpired)
+		return r.db.UpdateLayer1Status(r.ctx, msg.MsgHash, types.MsgExpired)
 	}
 	if err != nil && err.Error() == "execution reverted: Message successfully executed" {
-		return r.db.UpdateLayer1Status(r.ctx, msg.MsgHash, orm.MsgConfirmed)
+		return r.db.UpdateLayer1Status(r.ctx, msg.MsgHash, types.MsgConfirmed)
 	}
 	if err != nil {
 		return err
 	}
 	log.Info("relayMessage to layer2", "msg hash", msg.MsgHash, "tx hash", hash)
 
-	err = r.db.UpdateLayer1StatusAndLayer2Hash(r.ctx, msg.MsgHash, orm.MsgSubmitted, hash.String())
+	err = r.db.UpdateLayer1StatusAndLayer2Hash(r.ctx, msg.MsgHash, types.MsgSubmitted, hash.String())
 	if err != nil {
 		log.Error("UpdateLayer1StatusAndLayer2Hash failed", "msg.msgHash", msg.MsgHash, "msg.height", msg.Height, "err", err)
 	}
 	return err
 }
 
+// ProcessGasPriceOracle imports gas price to layer2
+func (r *Layer1Relayer) ProcessGasPriceOracle() {
+	latestBlockHeight, err := r.db.GetLatestL1BlockHeight()
+	if err != nil {
+		log.Warn("Failed to fetch latest L1 block height from db", "err", err)
+		return
+	}
+
+	blocks, err := r.db.GetL1BlockInfos(map[string]interface{}{
+		"number": latestBlockHeight,
+	})
+	if err != nil {
+		log.Error("Failed to GetL1BlockInfos from db", "height", latestBlockHeight, "err", err)
+		return
+	}
+	if len(blocks) != 1 {
+		log.Error("Block not exist", "height", latestBlockHeight)
+		return
+	}
+	block := blocks[0]
+
+	if block.GasOracleStatus == types.GasOraclePending {
+		expectedDelta := r.lastGasPrice * r.gasPriceDiff / gasPriceDiffPrecision
+		// last is undefine or (block.BaseFee >= minGasPrice && exceed diff)
+		if r.lastGasPrice == 0 || (block.BaseFee >= r.minGasPrice && (block.BaseFee >= r.lastGasPrice+expectedDelta || block.BaseFee <= r.lastGasPrice-expectedDelta)) {
+			baseFee := big.NewInt(int64(block.BaseFee))
+			data, err := r.l1GasOracleABI.Pack("setL1BaseFee", baseFee)
+			if err != nil {
+				log.Error("Failed to pack setL1BaseFee", "block.Hash", block.Hash, "block.Height", block.Number, "block.BaseFee", block.BaseFee, "err", err)
+				return
+			}
+
+			hash, err := r.gasOracleSender.SendTransaction(block.Hash, &r.cfg.GasPriceOracleContractAddress, big.NewInt(0), data)
+			if err != nil {
+				if !errors.Is(err, sender.ErrNoAvailableAccount) {
+					log.Error("Failed to send setL1BaseFee tx to layer2 ", "block.Hash", block.Hash, "block.Height", block.Number, "err", err)
+				}
+				return
+			}
+
+			err = r.db.UpdateL1GasOracleStatusAndOracleTxHash(r.ctx, block.Hash, types.GasOracleImporting, hash.String())
+			if err != nil {
+				log.Error("UpdateGasOracleStatusAndOracleTxHash failed", "block.Hash", block.Hash, "block.Height", block.Number, "err", err)
+				return
+			}
+			r.lastGasPrice = block.BaseFee
+			log.Info("Update l1 base fee", "txHash", hash.String(), "baseFee", baseFee)
+		}
+	}
+}
+
 // Start the relayer process
 func (r *Layer1Relayer) Start() {
-	go func() {
-		// trigger by timer
-		ticker := time.NewTicker(3 * time.Second)
+	loop := func(ctx context.Context, f func()) {
+		ticker := time.NewTicker(2 * time.Second)
 		defer ticker.Stop()
 
 		for {
 			select {
-			case <-ticker.C:
-				// number, err := r.client.BlockNumber(r.ctx)
-				// log.Info("receive header", "height", number)
-				r.ProcessSavedEvents()
-			case cfm := <-r.confirmationCh:
-				if !cfm.IsSuccessful {
-					log.Warn("transaction confirmed but failed in layer2", "confirmation", cfm)
-				} else {
-					// @todo handle db error
-					err := r.db.UpdateLayer1StatusAndLayer2Hash(r.ctx, cfm.ID, orm.MsgConfirmed, cfm.TxHash.String())
-					if err != nil {
-						log.Warn("UpdateLayer1StatusAndLayer2Hash failed", "err", err)
-					}
-					log.Info("transaction confirmed in layer2", "confirmation", cfm)
-				}
-			case <-r.stopCh:
+			case <-ctx.Done():
 				return
+			case <-ticker.C:
+				f()
 			}
 		}
+	}
+	go func() {
+		ctx, cancel := context.WithCancel(r.ctx)
+
+		go loop(ctx, r.ProcessSavedEvents)
+		go loop(ctx, r.ProcessGasPriceOracle)
+
+		go func(ctx context.Context) {
+			for {
+				select {
+				case <-ctx.Done():
+					return
+				case cfm := <-r.messageCh:
+					if !cfm.IsSuccessful {
+						log.Warn("transaction confirmed but failed in layer2", "confirmation", cfm)
+					} else {
+						// @todo handle db error
+						err := r.db.UpdateLayer1StatusAndLayer2Hash(r.ctx, cfm.ID, types.MsgConfirmed, cfm.TxHash.String())
+						if err != nil {
+							log.Warn("UpdateLayer1StatusAndLayer2Hash failed", "err", err)
+						}
+						log.Info("transaction confirmed in layer2", "confirmation", cfm)
+					}
+				case cfm := <-r.gasOracleCh:
+					if !cfm.IsSuccessful {
+						// @discuss: maybe make it pending again?
+						err := r.db.UpdateL1GasOracleStatusAndOracleTxHash(r.ctx, cfm.ID, types.GasOracleFailed, cfm.TxHash.String())
+						if err != nil {
+							log.Warn("UpdateL1GasOracleStatusAndOracleTxHash failed", "err", err)
+						}
+						log.Warn("transaction confirmed but failed in layer2", "confirmation", cfm)
+					} else {
+						// @todo handle db error
+						err := r.db.UpdateL1GasOracleStatusAndOracleTxHash(r.ctx, cfm.ID, types.GasOracleImported, cfm.TxHash.String())
+						if err != nil {
+							log.Warn("UpdateGasOracleStatusAndOracleTxHash failed", "err", err)
+						}
+						log.Info("transaction confirmed in layer2", "confirmation", cfm)
+					}
+				}
+			}
+		}(ctx)
+
+		<-r.stopCh
+		cancel()
 	}()
 }
 

bridge/l1/relayer_test.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"testing"
 
-	"github.com/scroll-tech/go-ethereum/ethclient"
 	"github.com/stretchr/testify/assert"
 
 	"scroll-tech/database/migrate"
@@ -20,10 +19,7 @@ func testCreateNewL1Relayer(t *testing.T) {
 	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
 	defer db.Close()
 
-	client, err := ethclient.Dial(l1gethImg.Endpoint())
-	assert.NoError(t, err)
-
-	relayer, err := NewLayer1Relayer(context.Background(), client, 1, db, cfg.L2Config.RelayerConfig)
+	relayer, err := NewLayer1Relayer(context.Background(), db, cfg.L2Config.RelayerConfig)
 	assert.NoError(t, err)
 	defer relayer.Stop()
 

bridge/l1/watcher.go

@@ -8,17 +8,25 @@ import (
 	geth "github.com/scroll-tech/go-ethereum"
 	"github.com/scroll-tech/go-ethereum/accounts/abi"
 	"github.com/scroll-tech/go-ethereum/common"
-	"github.com/scroll-tech/go-ethereum/core/types"
+	geth_types "github.com/scroll-tech/go-ethereum/core/types"
+	"github.com/scroll-tech/go-ethereum/crypto"
 	"github.com/scroll-tech/go-ethereum/ethclient"
 	"github.com/scroll-tech/go-ethereum/log"
+	"github.com/scroll-tech/go-ethereum/metrics"
+	"github.com/scroll-tech/go-ethereum/rpc"
+
+	"scroll-tech/common/types"
 
 	"scroll-tech/database"
-	"scroll-tech/database/orm"
 
 	bridge_abi "scroll-tech/bridge/abi"
 	"scroll-tech/bridge/utils"
 )
 
+var (
+	bridgeL1MsgSyncHeightGauge = metrics.NewRegisteredGauge("bridge/l1/msg/sync/height", nil)
+)
+
 type relayedMessage struct {
 	msgHash      common.Hash
 	txHash       common.Hash
@@ -26,9 +34,9 @@ type relayedMessage struct {
 }
 
 type rollupEvent struct {
-	batchID common.Hash
-	txHash  common.Hash
-	status  orm.RollupStatus
+	batchHash common.Hash
+	txHash    common.Hash
+	status    types.RollupStatus
 }
 
 // Watcher will listen for smart contract events from Eth L1.
@@ -38,22 +46,28 @@ type Watcher struct {
 	db     database.OrmFactory
 
 	// The number of new blocks to wait for a block to be confirmed
-	confirmations    uint64
+	confirmations rpc.BlockNumber
+
 	messengerAddress common.Address
 	messengerABI     *abi.ABI
 
-	rollupAddress common.Address
-	rollupABI     *abi.ABI
+	messageQueueAddress common.Address
+	messageQueueABI     *abi.ABI
+
+	scrollChainAddress common.Address
+	scrollChainABI     *abi.ABI
 
 	// The height of the block that the watcher has retrieved event logs
 	processedMsgHeight uint64
+	// The height of the block that the watcher has retrieved header rlp
+	processedBlockHeight uint64
 
-	stop chan bool
+	stopCh chan bool
 }
 
 // NewWatcher returns a new instance of Watcher. The instance will be not fully prepared,
 // and still needs to be finalized and ran by calling `watcher.Start`.
-func NewWatcher(ctx context.Context, client *ethclient.Client, startHeight uint64, confirmations uint64, messengerAddress common.Address, rollupAddress common.Address, db database.OrmFactory) *Watcher {
+func NewWatcher(ctx context.Context, client *ethclient.Client, startHeight uint64, confirmations rpc.BlockNumber, messengerAddress, messageQueueAddress, scrollChainAddress common.Address, db database.OrmFactory) *Watcher {
 	savedHeight, err := db.GetLayer1LatestWatchedHeight()
 	if err != nil {
 		log.Warn("Failed to fetch height from db", "err", err)
@@ -63,54 +77,147 @@ func NewWatcher(ctx context.Context, client *ethclient.Client, startHeight uint6
 		savedHeight = int64(startHeight)
 	}
 
-	stop := make(chan bool)
+	savedL1BlockHeight, err := db.GetLatestL1BlockHeight()
+	if err != nil {
+		log.Warn("Failed to fetch latest L1 block height from db", "err", err)
+		savedL1BlockHeight = 0
+	}
+	if savedL1BlockHeight < startHeight {
+		savedL1BlockHeight = startHeight
+	}
+
+	stopCh := make(chan bool)
 
 	return &Watcher{
-		ctx:                ctx,
-		client:             client,
-		db:                 db,
-		confirmations:      confirmations,
-		messengerAddress:   messengerAddress,
-		messengerABI:       bridge_abi.L1MessengerMetaABI,
-		rollupAddress:      rollupAddress,
-		rollupABI:          bridge_abi.RollupMetaABI,
-		processedMsgHeight: uint64(savedHeight),
-		stop:               stop,
+		ctx:           ctx,
+		client:        client,
+		db:            db,
+		confirmations: confirmations,
+
+		messengerAddress: messengerAddress,
+		messengerABI:     bridge_abi.L1ScrollMessengerABI,
+
+		messageQueueAddress: messageQueueAddress,
+		messageQueueABI:     bridge_abi.L1MessageQueueABI,
+
+		scrollChainAddress: scrollChainAddress,
+		scrollChainABI:     bridge_abi.ScrollChainABI,
+
+		processedMsgHeight:   uint64(savedHeight),
+		processedBlockHeight: savedL1BlockHeight,
+		stopCh:               stopCh,
 	}
 }
 
 // Start the Watcher module.
 func (w *Watcher) Start() {
 	go func() {
-		ticker := time.NewTicker(10 * time.Second)
-		defer ticker.Stop()
+		ctx, cancel := context.WithCancel(w.ctx)
 
-		for ; true; <-ticker.C {
-			select {
-			case <-w.stop:
-				return
+		go func(ctx context.Context) {
+			ticker := time.NewTicker(2 * time.Second)
+			defer ticker.Stop()
 
-			default:
-				blockNumber, err := w.client.BlockNumber(w.ctx)
-				if err != nil {
-					log.Error("Failed to get block number", "err", err)
-					continue
-				}
-				if err := w.FetchContractEvent(blockNumber); err != nil {
-					log.Error("Failed to fetch bridge contract", "err", err)
+			for {
+				select {
+				case <-ctx.Done():
+					return
+
+				case <-ticker.C:
+					number, err := utils.GetLatestConfirmedBlockNumber(w.ctx, w.client, w.confirmations)
+					if err != nil {
+						log.Error("failed to get block number", "err", err)
+						continue
+					}
+
+					if err := w.FetchBlockHeader(number); err != nil {
+						log.Error("Failed to fetch L1 block header", "lastest", number, "err", err)
+					}
 				}
 			}
-		}
+		}(ctx)
+
+		go func(ctx context.Context) {
+			ticker := time.NewTicker(2 * time.Second)
+			defer ticker.Stop()
+
+			for {
+				select {
+				case <-ctx.Done():
+					return
+
+				case <-ticker.C:
+					number, err := utils.GetLatestConfirmedBlockNumber(w.ctx, w.client, w.confirmations)
+					if err != nil {
+						log.Error("failed to get block number", "err", err)
+						continue
+					}
+
+					if err := w.FetchContractEvent(number); err != nil {
+						log.Error("Failed to fetch bridge contract", "err", err)
+					}
+				}
+			}
+		}(ctx)
+
+		<-w.stopCh
+		cancel()
 	}()
 }
 
 // Stop the Watcher module, for a graceful shutdown.
 func (w *Watcher) Stop() {
-	w.stop <- true
+	w.stopCh <- true
 }
 
 const contractEventsBlocksFetchLimit = int64(10)
 
+// FetchBlockHeader pull latest L1 blocks and save in DB
+func (w *Watcher) FetchBlockHeader(blockHeight uint64) error {
+	fromBlock := int64(w.processedBlockHeight) + 1
+	toBlock := int64(blockHeight)
+	if toBlock < fromBlock {
+		return nil
+	}
+	if toBlock > fromBlock+contractEventsBlocksFetchLimit {
+		toBlock = fromBlock + contractEventsBlocksFetchLimit - 1
+	}
+
+	var blocks []*types.L1BlockInfo
+	var err error
+	height := fromBlock
+	for ; height <= toBlock; height++ {
+		var block *geth_types.Header
+		block, err = w.client.HeaderByNumber(w.ctx, big.NewInt(height))
+		if err != nil {
+			log.Warn("Failed to get block", "height", height, "err", err)
+			break
+		}
+		blocks = append(blocks, &types.L1BlockInfo{
+			Number:  uint64(height),
+			Hash:    block.Hash().String(),
+			BaseFee: block.BaseFee.Uint64(),
+		})
+	}
+
+	// failed at first block, return with the error
+	if height == fromBlock {
+		return err
+	}
+	toBlock = height - 1
+
+	// insert succeed blocks
+	err = w.db.InsertL1Blocks(w.ctx, blocks)
+	if err != nil {
+		log.Warn("Failed to insert L1 block to db", "fromBlock", fromBlock, "toBlock", toBlock, "err", err)
+		return err
+	}
+
+	// update processed height
+	w.processedBlockHeight = uint64(toBlock)
+	return nil
+}
+
 // FetchContractEvent pull latest event logs from given contract address and save in DB
 func (w *Watcher) FetchContractEvent(blockHeight uint64) error {
 	defer func() {
@@ -118,7 +225,7 @@ func (w *Watcher) FetchContractEvent(blockHeight uint64) error {
 	}()
 
 	fromBlock := int64(w.processedMsgHeight) + 1
-	toBlock := int64(blockHeight) - int64(w.confirmations)
+	toBlock := int64(blockHeight)
 
 	for from := fromBlock; from <= toBlock; from += contractEventsBlocksFetchLimit {
 		to := from + contractEventsBlocksFetchLimit - 1
@@ -133,16 +240,17 @@ func (w *Watcher) FetchContractEvent(blockHeight uint64) error {
 			ToBlock:   big.NewInt(to),   // inclusive
 			Addresses: []common.Address{
 				w.messengerAddress,
-				w.rollupAddress,
+				w.scrollChainAddress,
+				w.messageQueueAddress,
 			},
 			Topics: make([][]common.Hash, 1),
 		}
 		query.Topics[0] = make([]common.Hash, 5)
-		query.Topics[0][0] = common.HexToHash(bridge_abi.SentMessageEventSignature)
-		query.Topics[0][1] = common.HexToHash(bridge_abi.RelayedMessageEventSignature)
-		query.Topics[0][2] = common.HexToHash(bridge_abi.FailedRelayedMessageEventSignature)
-		query.Topics[0][3] = common.HexToHash(bridge_abi.CommitBatchEventSignature)
-		query.Topics[0][4] = common.HexToHash(bridge_abi.FinalizedBatchEventSignature)
+		query.Topics[0][0] = bridge_abi.L1QueueTransactionEventSignature
+		query.Topics[0][1] = bridge_abi.L1RelayedMessageEventSignature
+		query.Topics[0][2] = bridge_abi.L1FailedRelayedMessageEventSignature
+		query.Topics[0][3] = bridge_abi.L1CommitBatchEventSignature
+		query.Topics[0][4] = bridge_abi.L1FinalizeBatchEventSignature
 
 		logs, err := w.client.FilterLogs(w.ctx, query)
 		if err != nil {
@@ -151,6 +259,7 @@ func (w *Watcher) FetchContractEvent(blockHeight uint64) error {
 		}
 		if len(logs) == 0 {
 			w.processedMsgHeight = uint64(to)
+			bridgeL1MsgSyncHeightGauge.Update(to)
 			continue
 		}
 		log.Info("Received new L1 events", "fromBlock", from, "toBlock", to, "cnt", len(logs))
@@ -163,29 +272,29 @@ func (w *Watcher) FetchContractEvent(blockHeight uint64) error {
 		log.Info("L1 events types", "SentMessageCount", len(sentMessageEvents), "RelayedMessageCount", len(relayedMessageEvents), "RollupEventCount", len(rollupEvents))
 
 		// use rollup event to update rollup results db status
-		var batchIDs []string
+		var batchHashes []string
 		for _, event := range rollupEvents {
-			batchIDs = append(batchIDs, event.batchID.String())
+			batchHashes = append(batchHashes, event.batchHash.String())
 		}
-		statuses, err := w.db.GetRollupStatusByIDList(batchIDs)
+		statuses, err := w.db.GetRollupStatusByHashList(batchHashes)
 		if err != nil {
-			log.Error("Failed to GetRollupStatusByIDList", "err", err)
+			log.Error("Failed to GetRollupStatusByHashList", "err", err)
 			return err
 		}
-		if len(statuses) != len(batchIDs) {
-			log.Error("RollupStatus.Length mismatch with BatchIDs.Length", "RollupStatus.Length", len(statuses), "BatchIDs.Length", len(batchIDs))
+		if len(statuses) != len(batchHashes) {
+			log.Error("RollupStatus.Length mismatch with batchHashes.Length", "RollupStatus.Length", len(statuses), "batchHashes.Length", len(batchHashes))
 			return nil
 		}
 
 		for index, event := range rollupEvents {
-			batchID := event.batchID.String()
+			batchHash := event.batchHash.String()
 			status := statuses[index]
 			// only update when db status is before event status
 			if event.status > status {
-				if event.status == orm.RollupFinalized {
-					err = w.db.UpdateFinalizeTxHashAndRollupStatus(w.ctx, batchID, event.txHash.String(), event.status)
-				} else if event.status == orm.RollupCommitted {
-					err = w.db.UpdateCommitTxHashAndRollupStatus(w.ctx, batchID, event.txHash.String(), event.status)
+				if event.status == types.RollupFinalized {
+					err = w.db.UpdateFinalizeTxHashAndRollupStatus(w.ctx, batchHash, event.txHash.String(), event.status)
+				} else if event.status == types.RollupCommitted {
+					err = w.db.UpdateCommitTxHashAndRollupStatus(w.ctx, batchHash, event.txHash.String(), event.status)
 				}
 				if err != nil {
 					log.Error("Failed to update Rollup/Finalize TxHash and Status", "err", err)
@@ -197,14 +306,13 @@ func (w *Watcher) FetchContractEvent(blockHeight uint64) error {
 		// Update relayed message first to make sure we don't forget to update submitted message.
 		// Since, we always start sync from the latest unprocessed message.
 		for _, msg := range relayedMessageEvents {
+			var msgStatus types.MsgStatus
 			if msg.isSuccessful {
-				// succeed
-				err = w.db.UpdateLayer2StatusAndLayer1Hash(w.ctx, msg.msgHash.String(), orm.MsgConfirmed, msg.txHash.String())
+				msgStatus = types.MsgConfirmed
 			} else {
-				// failed
-				err = w.db.UpdateLayer2StatusAndLayer1Hash(w.ctx, msg.msgHash.String(), orm.MsgFailed, msg.txHash.String())
+				msgStatus = types.MsgFailed
 			}
-			if err != nil {
+			if err = w.db.UpdateLayer2StatusAndLayer1Hash(w.ctx, msg.msgHash.String(), msgStatus, msg.txHash.String()); err != nil {
 				log.Error("Failed to update layer1 status and layer2 hash", "err", err)
 				return err
 			}
@@ -215,113 +323,93 @@ func (w *Watcher) FetchContractEvent(blockHeight uint64) error {
 		}
 
 		w.processedMsgHeight = uint64(to)
+		bridgeL1MsgSyncHeightGauge.Update(to)
 	}
 
 	return nil
 }
 
-func (w *Watcher) parseBridgeEventLogs(logs []types.Log) ([]*orm.L1Message, []relayedMessage, []rollupEvent, error) {
+func (w *Watcher) parseBridgeEventLogs(logs []geth_types.Log) ([]*types.L1Message, []relayedMessage, []rollupEvent, error) {
 	// Need use contract abi to parse event Log
 	// Can only be tested after we have our contracts set up
 
-	var l1Messages []*orm.L1Message
+	var l1Messages []*types.L1Message
 	var relayedMessages []relayedMessage
 	var rollupEvents []rollupEvent
 	for _, vLog := range logs {
 		switch vLog.Topics[0] {
-		case common.HexToHash(bridge_abi.SentMessageEventSignature):
-			event := struct {
-				Target       common.Address
-				Sender       common.Address
-				Value        *big.Int // uint256
-				Fee          *big.Int // uint256
-				Deadline     *big.Int // uint256
-				Message      []byte
-				MessageNonce *big.Int // uint256
-				GasLimit     *big.Int // uint256
-			}{}
-
-			err := w.messengerABI.UnpackIntoInterface(&event, "SentMessage", vLog.Data)
+		case bridge_abi.L1QueueTransactionEventSignature:
+			event := bridge_abi.L1QueueTransactionEvent{}
+			err := utils.UnpackLog(w.messageQueueABI, &event, "QueueTransaction", vLog)
 			if err != nil {
-				log.Warn("Failed to unpack layer1 SentMessage event", "err", err)
+				log.Warn("Failed to unpack layer1 QueueTransaction event", "err", err)
 				return l1Messages, relayedMessages, rollupEvents, err
 			}
-			// target is in topics[1]
-			event.Target = common.HexToAddress(vLog.Topics[1].String())
-			l1Messages = append(l1Messages, &orm.L1Message{
-				Nonce:      event.MessageNonce.Uint64(),
-				MsgHash:    utils.ComputeMessageHash(event.Sender, event.Target, event.Value, event.Fee, event.Deadline, event.Message, event.MessageNonce).String(),
+
+			msgHash := common.BytesToHash(crypto.Keccak256(event.Data))
+
+			l1Messages = append(l1Messages, &types.L1Message{
+				QueueIndex: event.QueueIndex.Uint64(),
+				MsgHash:    msgHash.String(),
 				Height:     vLog.BlockNumber,
 				Sender:     event.Sender.String(),
 				Value:      event.Value.String(),
-				Fee:        event.Fee.String(),
-				GasLimit:   event.GasLimit.Uint64(),
-				Deadline:   event.Deadline.Uint64(),
 				Target:     event.Target.String(),
-				Calldata:   common.Bytes2Hex(event.Message),
+				Calldata:   common.Bytes2Hex(event.Data),
+				GasLimit:   event.GasLimit.Uint64(),
 				Layer1Hash: vLog.TxHash.Hex(),
 			})
-		case common.HexToHash(bridge_abi.RelayedMessageEventSignature):
-			event := struct {
-				MsgHash common.Hash
-			}{}
-			// MsgHash is in topics[1]
-			event.MsgHash = common.HexToHash(vLog.Topics[1].String())
+		case bridge_abi.L1RelayedMessageEventSignature:
+			event := bridge_abi.L1RelayedMessageEvent{}
+			err := utils.UnpackLog(w.messengerABI, &event, "RelayedMessage", vLog)
+			if err != nil {
+				log.Warn("Failed to unpack layer1 RelayedMessage event", "err", err)
+				return l1Messages, relayedMessages, rollupEvents, err
+			}
+
 			relayedMessages = append(relayedMessages, relayedMessage{
-				msgHash:      event.MsgHash,
+				msgHash:      event.MessageHash,
 				txHash:       vLog.TxHash,
 				isSuccessful: true,
 			})
-		case common.HexToHash(bridge_abi.FailedRelayedMessageEventSignature):
-			event := struct {
-				MsgHash common.Hash
-			}{}
-			// MsgHash is in topics[1]
-			event.MsgHash = common.HexToHash(vLog.Topics[1].String())
+		case bridge_abi.L1FailedRelayedMessageEventSignature:
+			event := bridge_abi.L1FailedRelayedMessageEvent{}
+			err := utils.UnpackLog(w.messengerABI, &event, "FailedRelayedMessage", vLog)
+			if err != nil {
+				log.Warn("Failed to unpack layer1 FailedRelayedMessage event", "err", err)
+				return l1Messages, relayedMessages, rollupEvents, err
+			}
+
 			relayedMessages = append(relayedMessages, relayedMessage{
-				msgHash:      event.MsgHash,
+				msgHash:      event.MessageHash,
 				txHash:       vLog.TxHash,
 				isSuccessful: false,
 			})
-		case common.HexToHash(bridge_abi.CommitBatchEventSignature):
-			event := struct {
-				BatchID    common.Hash
-				BatchHash  common.Hash
-				BatchIndex *big.Int
-				ParentHash common.Hash
-			}{}
-			// BatchID is in topics[1]
-			event.BatchID = common.HexToHash(vLog.Topics[1].String())
-			err := w.rollupABI.UnpackIntoInterface(&event, "CommitBatch", vLog.Data)
+		case bridge_abi.L1CommitBatchEventSignature:
+			event := bridge_abi.L1CommitBatchEvent{}
+			err := utils.UnpackLog(w.scrollChainABI, &event, "CommitBatch", vLog)
 			if err != nil {
 				log.Warn("Failed to unpack layer1 CommitBatch event", "err", err)
 				return l1Messages, relayedMessages, rollupEvents, err
 			}
 
 			rollupEvents = append(rollupEvents, rollupEvent{
-				batchID: event.BatchID,
-				txHash:  vLog.TxHash,
-				status:  orm.RollupCommitted,
+				batchHash: event.BatchHash,
+				txHash:    vLog.TxHash,
+				status:    types.RollupCommitted,
 			})
-		case common.HexToHash(bridge_abi.FinalizedBatchEventSignature):
-			event := struct {
-				BatchID    common.Hash
-				BatchHash  common.Hash
-				BatchIndex *big.Int
-				ParentHash common.Hash
-			}{}
-			// BatchID is in topics[1]
-			event.BatchID = common.HexToHash(vLog.Topics[1].String())
-			err := w.rollupABI.UnpackIntoInterface(&event, "FinalizeBatch", vLog.Data)
+		case bridge_abi.L1FinalizeBatchEventSignature:
+			event := bridge_abi.L1FinalizeBatchEvent{}
+			err := utils.UnpackLog(w.scrollChainABI, &event, "FinalizeBatch", vLog)
 			if err != nil {
 				log.Warn("Failed to unpack layer1 FinalizeBatch event", "err", err)
 				return l1Messages, relayedMessages, rollupEvents, err
 			}
 
 			rollupEvents = append(rollupEvents, rollupEvent{
-				batchID: event.BatchID,
-				txHash:  vLog.TxHash,
-				status:  orm.RollupFinalized,
+				batchHash: event.BatchHash,
+				txHash:    vLog.TxHash,
+				status:    types.RollupFinalized,
 			})
 		default:
 			log.Error("Unknown event", "topic", vLog.Topics[0], "txHash", vLog.TxHash)

bridge/l1/watcher_test.go

@@ -23,7 +23,7 @@ func testStartWatcher(t *testing.T) {
 
 	l1Cfg := cfg.L1Config
 
-	watcher := NewWatcher(context.Background(), client, l1Cfg.StartHeight, l1Cfg.Confirmations, l1Cfg.L1MessengerAddress, l1Cfg.RelayerConfig.RollupContractAddress, db)
+	watcher := NewWatcher(context.Background(), client, l1Cfg.StartHeight, l1Cfg.Confirmations, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.RelayerConfig.RollupContractAddress, db)
 	watcher.Start()
 	defer watcher.Stop()
 }

bridge/l2/backend.go

@@ -14,10 +14,11 @@ import (
 // Backend manage the resources and services of L2 backend.
 // The backend should monitor events in layer 2 and relay transactions to layer 1
 type Backend struct {
-	cfg       *config.L2Config
-	l2Watcher *WatcherClient
-	relayer   *Layer2Relayer
-	orm       database.OrmFactory
+	cfg           *config.L2Config
+	watcher       *WatcherClient
+	relayer       *Layer2Relayer
+	batchProposer *BatchProposer
+	orm           database.OrmFactory
 }
 
 // New returns a new instance of Backend.
@@ -27,32 +28,39 @@ func New(ctx context.Context, cfg *config.L2Config, orm database.OrmFactory) (*B
 		return nil, err
 	}
 
-	relayer, err := NewLayer2Relayer(ctx, orm, cfg.RelayerConfig)
+	// Note: initialize watcher before relayer to keep DB consistent.
+	// Otherwise, there will be a race condition between watcher.initializeGenesis and relayer.ProcessPendingBatches.
+	watcher := NewL2WatcherClient(ctx, client, cfg.Confirmations, cfg.L2MessengerAddress, cfg.L2MessageQueueAddress, orm)
+
+	relayer, err := NewLayer2Relayer(ctx, client, orm, cfg.RelayerConfig)
 	if err != nil {
 		return nil, err
 	}
 
-	l2Watcher := NewL2WatcherClient(ctx, client, cfg.Confirmations, cfg.BatchProposerConfig, cfg.L2MessengerAddress, orm)
+	batchProposer := NewBatchProposer(ctx, cfg.BatchProposerConfig, relayer, orm)
 
 	return &Backend{
-		cfg:       cfg,
-		l2Watcher: l2Watcher,
-		relayer:   relayer,
-		orm:       orm,
+		cfg:           cfg,
+		watcher:       watcher,
+		relayer:       relayer,
+		batchProposer: batchProposer,
+		orm:           orm,
 	}, nil
 }
 
 // Start Backend module.
 func (l2 *Backend) Start() error {
-	l2.l2Watcher.Start()
+	l2.watcher.Start()
 	l2.relayer.Start()
+	l2.batchProposer.Start()
 	return nil
 }
 
 // Stop Backend module.
 func (l2 *Backend) Stop() {
-	l2.l2Watcher.Stop()
+	l2.batchProposer.Stop()
 	l2.relayer.Stop()
+	l2.watcher.Stop()
 }
 
 // APIs collect API modules.
@@ -61,7 +69,7 @@ func (l2 *Backend) APIs() []rpc.API {
 		{
 			Namespace: "l2",
 			Version:   "1.0",
-			Service:   WatcherAPI(l2.l2Watcher),
+			Service:   WatcherAPI(l2.watcher),
 			Public:    true,
 		},
 	}

bridge/l2/batch_proposer.go

@@ -1,105 +1,28 @@
 package l2
 
 import (
+	"context"
 	"fmt"
+	"math"
+	"reflect"
 	"sync"
 	"time"
 
+	geth_types "github.com/scroll-tech/go-ethereum/core/types"
 	"github.com/scroll-tech/go-ethereum/log"
 
-	"scroll-tech/database"
-	"scroll-tech/database/orm"
+	"scroll-tech/common/types"
 
+	"scroll-tech/database"
+
+	bridgeabi "scroll-tech/bridge/abi"
 	"scroll-tech/bridge/config"
 )
 
-type batchProposer struct {
-	mutex sync.Mutex
-
-	orm database.OrmFactory
-
-	batchTimeSec        uint64
-	batchGasThreshold   uint64
-	batchTxNumThreshold uint64
-	batchBlocksLimit    uint64
-
-	proofGenerationFreq uint64
-	skippedOpcodes      map[string]struct{}
-}
-
-func newBatchProposer(cfg *config.BatchProposerConfig, orm database.OrmFactory) *batchProposer {
-	return &batchProposer{
-		mutex:               sync.Mutex{},
-		orm:                 orm,
-		batchTimeSec:        cfg.BatchTimeSec,
-		batchGasThreshold:   cfg.BatchGasThreshold,
-		batchTxNumThreshold: cfg.BatchTxNumThreshold,
-		batchBlocksLimit:    cfg.BatchBlocksLimit,
-		proofGenerationFreq: cfg.ProofGenerationFreq,
-		skippedOpcodes:      cfg.SkippedOpcodes,
-	}
-}
-
-func (w *batchProposer) tryProposeBatch() {
-	w.mutex.Lock()
-	defer w.mutex.Unlock()
-
-	blocks, err := w.orm.GetUnbatchedBlocks(
-		map[string]interface{}{},
-		fmt.Sprintf("order by number ASC LIMIT %d", w.batchBlocksLimit),
-	)
-	if err != nil {
-		log.Error("failed to get unbatched blocks", "err", err)
-		return
-	}
-	if len(blocks) == 0 {
-		return
-	}
-
-	if blocks[0].GasUsed > w.batchGasThreshold {
-		log.Warn("gas overflow even for only 1 block", "height", blocks[0].Number, "gas", blocks[0].GasUsed)
-		if err = w.createBatchForBlocks(blocks[:1]); err != nil {
-			log.Error("failed to create batch", "number", blocks[0].Number, "err", err)
-		}
-		return
-	}
-
-	if blocks[0].TxNum > w.batchTxNumThreshold {
-		log.Warn("too many txs even for only 1 block", "height", blocks[0].Number, "tx_num", blocks[0].TxNum)
-		if err = w.createBatchForBlocks(blocks[:1]); err != nil {
-			log.Error("failed to create batch", "number", blocks[0].Number, "err", err)
-		}
-		return
-	}
-
-	var (
-		length         = len(blocks)
-		gasUsed, txNum uint64
-	)
-	// add blocks into batch until reach batchGasThreshold
-	for i, block := range blocks {
-		if (gasUsed+block.GasUsed > w.batchGasThreshold) || (txNum+block.TxNum > w.batchTxNumThreshold) {
-			blocks = blocks[:i]
-			break
-		}
-		gasUsed += block.GasUsed
-		txNum += block.TxNum
-	}
-
-	// if too few gas gathered, but we don't want to halt, we then check the first block in the batch:
-	// if it's not old enough we will skip proposing the batch,
-	// otherwise we will still propose a batch
-	if length == len(blocks) && blocks[0].BlockTimestamp+w.batchTimeSec > uint64(time.Now().Unix()) {
-		return
-	}
-
-	if err = w.createBatchForBlocks(blocks); err != nil {
-		log.Error("failed to create batch", "from", blocks[0].Number, "to", blocks[len(blocks)-1].Number, "err", err)
-	}
-}
-
-func (w *batchProposer) createBatchForBlocks(blocks []*orm.BlockInfo) error {
-	dbTx, err := w.orm.Beginx()
+// AddBatchInfoToDB inserts the batch information to the BlockBatch table and updates the batch_hash
+// in all blocks included in the batch.
+func AddBatchInfoToDB(db database.OrmFactory, batchData *types.BatchData) error {
+	dbTx, err := db.Beginx()
 	if err != nil {
 		return err
 	}
@@ -113,28 +36,328 @@ func (w *batchProposer) createBatchForBlocks(blocks []*orm.BlockInfo) error {
 		}
 	}()
 
-	var (
-		batchID        string
-		startBlock     = blocks[0]
-		endBlock       = blocks[len(blocks)-1]
-		txNum, gasUsed uint64
-		blockIDs       = make([]uint64, len(blocks))
-	)
-	for i, block := range blocks {
-		txNum += block.TxNum
-		gasUsed += block.GasUsed
-		blockIDs[i] = block.Number
-	}
-
-	batchID, dbTxErr = w.orm.NewBatchInDBTx(dbTx, startBlock, endBlock, startBlock.ParentHash, txNum, gasUsed)
-	if dbTxErr != nil {
+	if dbTxErr = db.NewBatchInDBTx(dbTx, batchData); dbTxErr != nil {
 		return dbTxErr
 	}
 
-	if dbTxErr = w.orm.SetBatchIDForBlocksInDBTx(dbTx, blockIDs, batchID); dbTxErr != nil {
+	var blockIDs = make([]uint64, len(batchData.Batch.Blocks))
+	for i, block := range batchData.Batch.Blocks {
+		blockIDs[i] = block.BlockNumber
+	}
+
+	if dbTxErr = db.SetBatchHashForL2BlocksInDBTx(dbTx, blockIDs, batchData.Hash().Hex()); dbTxErr != nil {
 		return dbTxErr
 	}
 
 	dbTxErr = dbTx.Commit()
 	return dbTxErr
 }
+
+// BatchProposer sends batches commit transactions to relayer.
+type BatchProposer struct {
+	mutex sync.Mutex
+
+	ctx context.Context
+	orm database.OrmFactory
+
+	batchTimeSec             uint64
+	batchGasThreshold        uint64
+	batchTxNumThreshold      uint64
+	batchBlocksLimit         uint64
+	batchCommitTimeSec       uint64
+	commitCalldataSizeLimit  uint64
+	batchDataBufferSizeLimit uint64
+
+	proofGenerationFreq uint64
+	batchDataBuffer     []*types.BatchData
+	relayer             *Layer2Relayer
+
+	piCfg *types.PublicInputHashConfig
+
+	stopCh chan struct{}
+}
+
+// NewBatchProposer will return a new instance of BatchProposer.
+func NewBatchProposer(ctx context.Context, cfg *config.BatchProposerConfig, relayer *Layer2Relayer, orm database.OrmFactory) *BatchProposer {
+	p := &BatchProposer{
+		mutex:                    sync.Mutex{},
+		ctx:                      ctx,
+		orm:                      orm,
+		batchTimeSec:             cfg.BatchTimeSec,
+		batchGasThreshold:        cfg.BatchGasThreshold,
+		batchTxNumThreshold:      cfg.BatchTxNumThreshold,
+		batchBlocksLimit:         cfg.BatchBlocksLimit,
+		batchCommitTimeSec:       cfg.BatchCommitTimeSec,
+		commitCalldataSizeLimit:  cfg.CommitTxCalldataSizeLimit,
+		batchDataBufferSizeLimit: 100*cfg.CommitTxCalldataSizeLimit + 1*1024*1024, // @todo: determine the value.
+		proofGenerationFreq:      cfg.ProofGenerationFreq,
+		piCfg:                    cfg.PublicInputConfig,
+		relayer:                  relayer,
+		stopCh:                   make(chan struct{}),
+	}
+
+	// for graceful restart.
+	p.recoverBatchDataBuffer()
+
+	// try to commit the leftover pending batches
+	p.tryCommitBatches()
+
+	return p
+}
+
+// Start the Listening process
+func (p *BatchProposer) Start() {
+	go func() {
+		if reflect.ValueOf(p.orm).IsNil() {
+			panic("must run BatchProposer with DB")
+		}
+
+		ctx, cancel := context.WithCancel(p.ctx)
+
+		// batch proposer loop
+		go func(ctx context.Context) {
+			ticker := time.NewTicker(2 * time.Second)
+			defer ticker.Stop()
+
+			for {
+				select {
+				case <-ctx.Done():
+					return
+
+				case <-ticker.C:
+					p.tryProposeBatch()
+					p.tryCommitBatches()
+				}
+			}
+		}(ctx)
+
+		<-p.stopCh
+		cancel()
+	}()
+}
+
+// Stop the Watcher module, for a graceful shutdown.
+func (p *BatchProposer) Stop() {
+	p.stopCh <- struct{}{}
+}
+
+func (p *BatchProposer) recoverBatchDataBuffer() {
+	// batches are sorted by batch index in increasing order
+	batchHashes, err := p.orm.GetPendingBatches(math.MaxInt32)
+	if err != nil {
+		log.Crit("Failed to fetch pending L2 batches", "err", err)
+	}
+	if len(batchHashes) == 0 {
+		return
+	}
+	log.Info("Load pending batches into batchDataBuffer")
+
+	// helper function to cache and get BlockBatch from DB
+	blockBatchCache := make(map[string]*types.BlockBatch)
+	getBlockBatch := func(batchHash string) (*types.BlockBatch, error) {
+		if blockBatch, ok := blockBatchCache[batchHash]; ok {
+			return blockBatch, nil
+		}
+		blockBatches, err := p.orm.GetBlockBatches(map[string]interface{}{"hash": batchHash})
+		if err != nil || len(blockBatches) == 0 {
+			return nil, err
+		}
+		blockBatchCache[batchHash] = blockBatches[0]
+		return blockBatches[0], nil
+	}
+
+	// recover the in-memory batchData from DB
+	for _, batchHash := range batchHashes {
+		log.Info("recover batch data from pending batch", "batch_hash", batchHash)
+		blockBatch, err := getBlockBatch(batchHash)
+		if err != nil {
+			log.Error("could not get BlockBatch", "batch_hash", batchHash, "error", err)
+			continue
+		}
+
+		parentBatch, err := getBlockBatch(blockBatch.ParentHash)
+		if err != nil {
+			log.Error("could not get parent BlockBatch", "batch_hash", batchHash, "error", err)
+			continue
+		}
+
+		blockInfos, err := p.orm.GetL2BlockInfos(
+			map[string]interface{}{"batch_hash": batchHash},
+			"order by number ASC",
+		)
+
+		if err != nil {
+			log.Error("could not GetL2BlockInfos", "batch_hash", batchHash, "error", err)
+			continue
+		}
+		if len(blockInfos) != int(blockBatch.EndBlockNumber-blockBatch.StartBlockNumber+1) {
+			log.Error("the number of block info retrieved from DB mistmatches the batch info in the DB",
+				"len(blockInfos)", len(blockInfos),
+				"expected", blockBatch.EndBlockNumber-blockBatch.StartBlockNumber+1)
+			continue
+		}
+
+		batchData, err := p.generateBatchData(parentBatch, blockInfos)
+		if err != nil {
+			continue
+		}
+		if batchData.Hash().Hex() != batchHash {
+			log.Error("the hash from recovered batch data mismatches the DB entry",
+				"recovered_batch_hash", batchData.Hash().Hex(),
+				"expected", batchHash)
+			continue
+		}
+
+		p.batchDataBuffer = append(p.batchDataBuffer, batchData)
+	}
+}
+
+func (p *BatchProposer) tryProposeBatch() {
+	p.mutex.Lock()
+	defer p.mutex.Unlock()
+
+	if p.getBatchDataBufferSize() < p.batchDataBufferSizeLimit {
+		blocks, err := p.orm.GetUnbatchedL2Blocks(
+			map[string]interface{}{},
+			fmt.Sprintf("order by number ASC LIMIT %d", p.batchBlocksLimit),
+		)
+		if err != nil {
+			log.Error("failed to get unbatched blocks", "err", err)
+			return
+		}
+
+		p.proposeBatch(blocks)
+	}
+}
+
+func (p *BatchProposer) tryCommitBatches() {
+	p.mutex.Lock()
+	defer p.mutex.Unlock()
+
+	if len(p.batchDataBuffer) == 0 {
+		return
+	}
+
+	// estimate the calldata length to determine whether to commit the pending batches
+	index := 0
+	commit := false
+	calldataByteLen := uint64(0)
+	for ; index < len(p.batchDataBuffer); index++ {
+		calldataByteLen += bridgeabi.GetBatchCalldataLength(&p.batchDataBuffer[index].Batch)
+		if calldataByteLen > p.commitCalldataSizeLimit {
+			commit = true
+			if index == 0 {
+				log.Warn(
+					"The calldata size of one batch is larger than the threshold",
+					"batch_hash", p.batchDataBuffer[0].Hash().Hex(),
+					"calldata_size", calldataByteLen,
+				)
+				index = 1
+			}
+			break
+		}
+	}
+	if !commit && p.batchDataBuffer[0].Timestamp()+p.batchCommitTimeSec > uint64(time.Now().Unix()) {
+		return
+	}
+
+	// Send commit tx for batchDataBuffer[0:index]
+	log.Info("Commit batches", "start_index", p.batchDataBuffer[0].Batch.BatchIndex,
+		"end_index", p.batchDataBuffer[index-1].Batch.BatchIndex)
+	err := p.relayer.SendCommitTx(p.batchDataBuffer[:index])
+	if err != nil {
+		// leave the retry to the next ticker
+		log.Error("SendCommitTx failed", "error", err)
+	} else {
+		// pop the processed batches from the buffer
+		p.batchDataBuffer = p.batchDataBuffer[index:]
+	}
+}
+
+func (p *BatchProposer) proposeBatch(blocks []*types.BlockInfo) {
+	if len(blocks) == 0 {
+		return
+	}
+
+	if blocks[0].GasUsed > p.batchGasThreshold {
+		log.Warn("gas overflow even for only 1 block", "height", blocks[0].Number, "gas", blocks[0].GasUsed)
+		if err := p.createBatchForBlocks(blocks[:1]); err != nil {
+			log.Error("failed to create batch", "number", blocks[0].Number, "err", err)
+		}
+		return
+	}
+
+	if blocks[0].TxNum > p.batchTxNumThreshold {
+		log.Warn("too many txs even for only 1 block", "height", blocks[0].Number, "tx_num", blocks[0].TxNum)
+		if err := p.createBatchForBlocks(blocks[:1]); err != nil {
+			log.Error("failed to create batch", "number", blocks[0].Number, "err", err)
+		}
+		return
+	}
+
+	var gasUsed, txNum uint64
+	reachThreshold := false
+	// add blocks into batch until reach batchGasThreshold
+	for i, block := range blocks {
+		if (gasUsed+block.GasUsed > p.batchGasThreshold) || (txNum+block.TxNum > p.batchTxNumThreshold) {
+			blocks = blocks[:i]
+			reachThreshold = true
+			break
+		}
+		gasUsed += block.GasUsed
+		txNum += block.TxNum
+	}
+
+	// if too few gas gathered, but we don't want to halt, we then check the first block in the batch:
+	// if it's not old enough we will skip proposing the batch,
+	// otherwise we will still propose a batch
+	if !reachThreshold && blocks[0].BlockTimestamp+p.batchTimeSec > uint64(time.Now().Unix()) {
+		return
+	}
+
+	if err := p.createBatchForBlocks(blocks); err != nil {
+		log.Error("failed to create batch", "from", blocks[0].Number, "to", blocks[len(blocks)-1].Number, "err", err)
+	}
+}
+
+func (p *BatchProposer) createBatchForBlocks(blocks []*types.BlockInfo) error {
+	lastBatch, err := p.orm.GetLatestBatch()
+	if err != nil {
+		// We should not receive sql.ErrNoRows error. The DB should have the batch entry that contains the genesis block.
+		return err
+	}
+
+	batchData, err := p.generateBatchData(lastBatch, blocks)
+	if err != nil {
+		log.Error("createBatchData failed", "error", err)
+		return err
+	}
+
+	if err := AddBatchInfoToDB(p.orm, batchData); err != nil {
+		log.Error("addBatchInfoToDB failed", "BatchHash", batchData.Hash(), "error", err)
+		return err
+	}
+
+	p.batchDataBuffer = append(p.batchDataBuffer, batchData)
+	return nil
+}
+
+func (p *BatchProposer) generateBatchData(parentBatch *types.BlockBatch, blocks []*types.BlockInfo) (*types.BatchData, error) {
+	var traces []*geth_types.BlockTrace
+	for _, block := range blocks {
+		trs, err := p.orm.GetL2BlockTraces(map[string]interface{}{"hash": block.Hash})
+		if err != nil || len(trs) != 1 {
+			log.Error("Failed to GetBlockTraces", "hash", block.Hash, "err", err)
+			return nil, err
+		}
+		traces = append(traces, trs[0])
+	}
+	return types.NewBatchData(parentBatch, traces, p.piCfg), nil
+}
+
+func (p *BatchProposer) getBatchDataBufferSize() (size uint64) {
+	for _, batchData := range p.batchDataBuffer {
+		size += bridgeabi.GetBatchCalldataLength(&batchData.Batch)
+	}
+	return
+}

bridge/l2/batch_proposer_test.go

@@ -1,13 +1,12 @@
 package l2
 
 import (
-	"encoding/json"
+	"context"
 	"fmt"
-	"math/big"
-	"os"
+	"math"
 	"testing"
 
-	"github.com/scroll-tech/go-ethereum/core/types"
+	geth_types "github.com/scroll-tech/go-ethereum/core/types"
 	"github.com/stretchr/testify/assert"
 
 	"scroll-tech/database"
@@ -15,48 +14,90 @@ import (
 
 	"scroll-tech/bridge/config"
 
-	"scroll-tech/common/utils"
+	"scroll-tech/common/types"
 )
 
-func testBatchProposer(t *testing.T) {
+func testBatchProposerProposeBatch(t *testing.T) {
 	// Create db handler and reset db.
 	db, err := database.NewOrmFactory(cfg.DBConfig)
 	assert.NoError(t, err)
 	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
 	defer db.Close()
 
-	trace2 := &types.BlockTrace{}
-	trace3 := &types.BlockTrace{}
-
-	data, err := os.ReadFile("../../common/testdata/blockTrace_02.json")
-	assert.NoError(t, err)
-	err = json.Unmarshal(data, trace2)
-	assert.NoError(t, err)
-
-	data, err = os.ReadFile("../../common/testdata/blockTrace_03.json")
-	assert.NoError(t, err)
-	err = json.Unmarshal(data, trace3)
-	assert.NoError(t, err)
 	// Insert traces into db.
-	assert.NoError(t, db.InsertBlockTraces([]*types.BlockTrace{trace2, trace3}))
+	assert.NoError(t, db.InsertL2BlockTraces([]*geth_types.BlockTrace{blockTrace1}))
 
-	id := utils.ComputeBatchID(trace3.Header.Hash(), trace2.Header.ParentHash, big.NewInt(1))
+	l2cfg := cfg.L2Config
+	wc := NewL2WatcherClient(context.Background(), l2Cli, l2cfg.Confirmations, l2cfg.L2MessengerAddress, l2cfg.L2MessageQueueAddress, db)
+	wc.Start()
+	defer wc.Stop()
 
-	proposer := newBatchProposer(&config.BatchProposerConfig{
+	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, cfg.L2Config.RelayerConfig)
+	assert.NoError(t, err)
+
+	proposer := NewBatchProposer(context.Background(), &config.BatchProposerConfig{
 		ProofGenerationFreq: 1,
 		BatchGasThreshold:   3000000,
 		BatchTxNumThreshold: 135,
 		BatchTimeSec:        1,
 		BatchBlocksLimit:    100,
-	}, db)
+	}, relayer, db)
 	proposer.tryProposeBatch()
 
-	infos, err := db.GetUnbatchedBlocks(map[string]interface{}{},
+	infos, err := db.GetUnbatchedL2Blocks(map[string]interface{}{},
 		fmt.Sprintf("order by number ASC LIMIT %d", 100))
 	assert.NoError(t, err)
-	assert.Equal(t, true, len(infos) == 0)
+	assert.Equal(t, 0, len(infos))
 
-	exist, err := db.BatchRecordExist(id)
+	exist, err := db.BatchRecordExist(batchData1.Hash().Hex())
+	assert.NoError(t, err)
+	assert.Equal(t, true, exist)
+}
+
+func testBatchProposerGracefulRestart(t *testing.T) {
+	// Create db handler and reset db.
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	defer db.Close()
+
+	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, cfg.L2Config.RelayerConfig)
+	assert.NoError(t, err)
+
+	// Insert traces into db.
+	assert.NoError(t, db.InsertL2BlockTraces([]*geth_types.BlockTrace{blockTrace2}))
+
+	// Insert block batch into db.
+	dbTx, err := db.Beginx()
+	assert.NoError(t, err)
+	assert.NoError(t, db.NewBatchInDBTx(dbTx, batchData1))
+	assert.NoError(t, db.NewBatchInDBTx(dbTx, batchData2))
+	assert.NoError(t, db.SetBatchHashForL2BlocksInDBTx(dbTx, []uint64{
+		batchData1.Batch.Blocks[0].BlockNumber}, batchData1.Hash().Hex()))
+	assert.NoError(t, db.SetBatchHashForL2BlocksInDBTx(dbTx, []uint64{
+		batchData2.Batch.Blocks[0].BlockNumber}, batchData2.Hash().Hex()))
+	assert.NoError(t, dbTx.Commit())
+
+	assert.NoError(t, db.UpdateRollupStatus(context.Background(), batchData1.Hash().Hex(), types.RollupFinalized))
+
+	batchHashes, err := db.GetPendingBatches(math.MaxInt32)
+	assert.NoError(t, err)
+	assert.Equal(t, 1, len(batchHashes))
+	assert.Equal(t, batchData2.Hash().Hex(), batchHashes[0])
+	// test p.recoverBatchDataBuffer().
+	_ = NewBatchProposer(context.Background(), &config.BatchProposerConfig{
+		ProofGenerationFreq: 1,
+		BatchGasThreshold:   3000000,
+		BatchTxNumThreshold: 135,
+		BatchTimeSec:        1,
+		BatchBlocksLimit:    100,
+	}, relayer, db)
+
+	batchHashes, err = db.GetPendingBatches(math.MaxInt32)
+	assert.NoError(t, err)
+	assert.Equal(t, 0, len(batchHashes))
+
+	exist, err := db.BatchRecordExist(batchData2.Hash().Hex())
 	assert.NoError(t, err)
 	assert.Equal(t, true, exist)
 }

bridge/l2/l2_test.go

@@ -1,12 +1,17 @@
 package l2
 
 import (
+	"encoding/json"
+	"fmt"
+	"os"
 	"testing"
 
+	geth_types "github.com/scroll-tech/go-ethereum/core/types"
 	"github.com/scroll-tech/go-ethereum/ethclient"
 	"github.com/stretchr/testify/assert"
 
 	"scroll-tech/common/docker"
+	"scroll-tech/common/types"
 
 	"scroll-tech/bridge/config"
 )
@@ -22,6 +27,14 @@ var (
 
 	// l2geth client
 	l2Cli *ethclient.Client
+
+	// block trace
+	blockTrace1 *geth_types.BlockTrace
+	blockTrace2 *geth_types.BlockTrace
+
+	// batch data
+	batchData1 *types.BatchData
+	batchData2 *types.BatchData
 )
 
 func setupEnv(t *testing.T) (err error) {
@@ -47,6 +60,40 @@ func setupEnv(t *testing.T) (err error) {
 	l2Cli, err = ethclient.Dial(cfg.L2Config.Endpoint)
 	assert.NoError(t, err)
 
+	templateBlockTrace1, err := os.ReadFile("../../common/testdata/blockTrace_02.json")
+	if err != nil {
+		return err
+	}
+	// unmarshal blockTrace
+	blockTrace1 = &geth_types.BlockTrace{}
+	if err = json.Unmarshal(templateBlockTrace1, blockTrace1); err != nil {
+		return err
+	}
+
+	parentBatch1 := &types.BlockBatch{
+		Index: 1,
+		Hash:  "0x0000000000000000000000000000000000000000",
+	}
+	batchData1 = types.NewBatchData(parentBatch1, []*geth_types.BlockTrace{blockTrace1}, nil)
+
+	templateBlockTrace2, err := os.ReadFile("../../common/testdata/blockTrace_03.json")
+	if err != nil {
+		return err
+	}
+	// unmarshal blockTrace
+	blockTrace2 = &geth_types.BlockTrace{}
+	if err = json.Unmarshal(templateBlockTrace2, blockTrace2); err != nil {
+		return err
+	}
+	parentBatch2 := &types.BlockBatch{
+		Index: batchData1.Batch.BatchIndex,
+		Hash:  batchData1.Hash().Hex(),
+	}
+	batchData2 = types.NewBatchData(parentBatch2, []*geth_types.BlockTrace{blockTrace2}, nil)
+
+	fmt.Printf("batchhash1 = %x\n", batchData1.Hash())
+	fmt.Printf("batchhash2 = %x\n", batchData2.Hash())
+
 	return err
 }
 
@@ -75,11 +122,12 @@ func TestFunction(t *testing.T) {
 	// Run l2 relayer test cases.
 	t.Run("TestCreateNewRelayer", testCreateNewRelayer)
 	t.Run("TestL2RelayerProcessSaveEvents", testL2RelayerProcessSaveEvents)
-	t.Run("testL2RelayerProcessPendingBatches", testL2RelayerProcessPendingBatches)
-	t.Run("testL2RelayerProcessCommittedBatches", testL2RelayerProcessCommittedBatches)
-	t.Run("testL2RelayerSkipBatches", testL2RelayerSkipBatches)
+	t.Run("TestL2RelayerProcessCommittedBatches", testL2RelayerProcessCommittedBatches)
+	t.Run("TestL2RelayerSkipBatches", testL2RelayerSkipBatches)
 
-	t.Run("testBatchProposer", testBatchProposer)
+	// Run batch proposer test cases.
+	t.Run("TestBatchProposerProposeBatch", testBatchProposerProposeBatch)
+	t.Run("TestBatchProposerGracefulRestart", testBatchProposerGracefulRestart)
 
 	t.Cleanup(func() {
 		free(t)

bridge/l2/relayer.go

@@ -13,12 +13,15 @@ import (
 
 	"github.com/scroll-tech/go-ethereum/accounts/abi"
 	"github.com/scroll-tech/go-ethereum/common"
+	"github.com/scroll-tech/go-ethereum/crypto"
+	"github.com/scroll-tech/go-ethereum/ethclient"
 	"github.com/scroll-tech/go-ethereum/log"
 	"golang.org/x/sync/errgroup"
 	"modernc.org/mathutil"
 
+	"scroll-tech/common/types"
+
 	"scroll-tech/database"
-	"scroll-tech/database/orm"
 
 	bridge_abi "scroll-tech/bridge/abi"
 	"scroll-tech/bridge/config"
@@ -26,6 +29,12 @@ import (
 	"scroll-tech/bridge/utils"
 )
 
+const (
+	gasPriceDiffPrecision = 1000000
+
+	defaultGasPriceDiff = 50000 // 5%
+)
+
 // Layer2Relayer is responsible for
 //  1. Committing and finalizing L2 blocks on L1
 //  2. Relaying messages from L2 to L1
@@ -35,6 +44,8 @@ import (
 type Layer2Relayer struct {
 	ctx context.Context
 
+	l2Client *ethclient.Client
+
 	db  database.OrmFactory
 	cfg *config.RelayerConfig
 
@@ -46,23 +57,31 @@ type Layer2Relayer struct {
 	rollupCh     <-chan *sender.Confirmation
 	l1RollupABI  *abi.ABI
 
+	gasOracleSender *sender.Sender
+	gasOracleCh     <-chan *sender.Confirmation
+	l2GasOracleABI  *abi.ABI
+
+	lastGasPrice uint64
+	minGasPrice  uint64
+	gasPriceDiff uint64
+
 	// A list of processing message.
 	// key(string): confirmation ID, value(string): layer2 hash.
 	processingMessage sync.Map
 
-	// A list of processing batch commitment.
-	// key(string): confirmation ID, value(string): batch id.
-	processingCommitment sync.Map
+	// A list of processing batches commitment.
+	// key(string): confirmation ID, value([]string): batch hashes.
+	processingBatchesCommitment sync.Map
 
 	// A list of processing batch finalization.
-	// key(string): confirmation ID, value(string): batch id.
+	// key(string): confirmation ID, value(string): batch hash.
 	processingFinalization sync.Map
 
 	stopCh chan struct{}
 }
 
 // NewLayer2Relayer will return a new instance of Layer2RelayerClient
-func NewLayer2Relayer(ctx context.Context, db database.OrmFactory, cfg *config.RelayerConfig) (*Layer2Relayer, error) {
+func NewLayer2Relayer(ctx context.Context, l2Client *ethclient.Client, db database.OrmFactory, cfg *config.RelayerConfig) (*Layer2Relayer, error) {
 	// @todo use different sender for relayer, block commit and proof finalize
 	messageSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.MessageSenderPrivateKeys)
 	if err != nil {
@@ -76,28 +95,55 @@ func NewLayer2Relayer(ctx context.Context, db database.OrmFactory, cfg *config.R
 		return nil, err
 	}
 
+	gasOracleSender, err := sender.NewSender(ctx, cfg.SenderConfig, cfg.GasOracleSenderPrivateKeys)
+	if err != nil {
+		log.Error("Failed to create gas oracle sender", "err", err)
+		return nil, err
+	}
+
+	var minGasPrice uint64
+	var gasPriceDiff uint64
+	if cfg.GasOracleConfig != nil {
+		minGasPrice = cfg.GasOracleConfig.MinGasPrice
+		gasPriceDiff = cfg.GasOracleConfig.GasPriceDiff
+	} else {
+		minGasPrice = 0
+		gasPriceDiff = defaultGasPriceDiff
+	}
+
 	return &Layer2Relayer{
-		ctx:                    ctx,
-		db:                     db,
-		messageSender:          messageSender,
-		messageCh:              messageSender.ConfirmChan(),
-		l1MessengerABI:         bridge_abi.L1MessengerMetaABI,
-		rollupSender:           rollupSender,
-		rollupCh:               rollupSender.ConfirmChan(),
-		l1RollupABI:            bridge_abi.RollupMetaABI,
-		cfg:                    cfg,
-		processingMessage:      sync.Map{},
-		processingCommitment:   sync.Map{},
-		processingFinalization: sync.Map{},
-		stopCh:                 make(chan struct{}),
+		ctx: ctx,
+		db:  db,
+
+		l2Client: l2Client,
+
+		messageSender:  messageSender,
+		messageCh:      messageSender.ConfirmChan(),
+		l1MessengerABI: bridge_abi.L1ScrollMessengerABI,
+
+		rollupSender: rollupSender,
+		rollupCh:     rollupSender.ConfirmChan(),
+		l1RollupABI:  bridge_abi.ScrollChainABI,
+
+		gasOracleSender: gasOracleSender,
+		gasOracleCh:     gasOracleSender.ConfirmChan(),
+		l2GasOracleABI:  bridge_abi.L2GasPriceOracleABI,
+
+		minGasPrice:  minGasPrice,
+		gasPriceDiff: gasPriceDiff,
+
+		cfg:                         cfg,
+		processingMessage:           sync.Map{},
+		processingBatchesCommitment: sync.Map{},
+		processingFinalization:      sync.Map{},
+		stopCh:                      make(chan struct{}),
 	}, nil
 }
 
 const processMsgLimit = 100
 
 // ProcessSavedEvents relays saved un-processed cross-domain transactions to desired blockchain
-func (r *Layer2Relayer) ProcessSavedEvents(wg *sync.WaitGroup) {
-	defer wg.Done()
+func (r *Layer2Relayer) ProcessSavedEvents() {
 	batch, err := r.db.GetLatestFinalizedBatch()
 	if err != nil {
 		log.Error("GetLatestFinalizedBatch failed", "err", err)
@@ -106,7 +152,7 @@ func (r *Layer2Relayer) ProcessSavedEvents(wg *sync.WaitGroup) {
 
 	// msgs are sorted by nonce in increasing order
 	msgs, err := r.db.GetL2Messages(
-		map[string]interface{}{"status": orm.MsgPending},
+		map[string]interface{}{"status": types.MsgPending},
 		fmt.Sprintf("AND height<=%d", batch.EndBlockNumber),
 		fmt.Sprintf("ORDER BY nonce ASC LIMIT %d", processMsgLimit),
 	)
@@ -126,7 +172,7 @@ func (r *Layer2Relayer) ProcessSavedEvents(wg *sync.WaitGroup) {
 		for _, msg := range msgs[:size] {
 			msg := msg
 			g.Go(func() error {
-				return r.processSavedEvent(msg, batch.Index)
+				return r.processSavedEvent(msg)
 			})
 		}
 		if err := g.Wait(); err != nil {
@@ -138,13 +184,24 @@ func (r *Layer2Relayer) ProcessSavedEvents(wg *sync.WaitGroup) {
 	}
 }
 
-func (r *Layer2Relayer) processSavedEvent(msg *orm.L2Message, index uint64) error {
+func (r *Layer2Relayer) processSavedEvent(msg *types.L2Message) error {
 	// @todo fetch merkle proof from l2geth
 	log.Info("Processing L2 Message", "msg.nonce", msg.Nonce, "msg.height", msg.Height)
 
+	// Get the block info that contains the message
+	blockInfos, err := r.db.GetL2BlockInfos(map[string]interface{}{"number": msg.Height})
+	if err != nil {
+		log.Error("Failed to GetL2BlockInfos from DB", "number", msg.Height)
+	}
+	blockInfo := blockInfos[0]
+	if !blockInfo.BatchHash.Valid {
+		log.Error("Block has not been batched yet", "number", blockInfo.Number, "msg.nonce", msg.Nonce)
+		return nil
+	}
+
+	// TODO: rebuild the withdraw trie to generate the merkle proof
 	proof := bridge_abi.IL1ScrollMessengerL2MessageProof{
-		BlockHeight: big.NewInt(int64(msg.Height)),
-		BatchIndex:  big.NewInt(0).SetUint64(index),
+		BatchHash:   common.HexToHash(blockInfo.BatchHash.String),
 		MerkleProof: make([]byte, 0),
 	}
 	from := common.HexToAddress(msg.Sender)
@@ -155,11 +212,9 @@ func (r *Layer2Relayer) processSavedEvent(msg *orm.L2Message, index uint64) erro
 		log.Error("Failed to parse message value", "msg.nonce", msg.Nonce, "msg.height", msg.Height)
 		// TODO: need to skip this message by changing its status to MsgError
 	}
-	fee, _ := big.NewInt(0).SetString(msg.Fee, 10)
-	deadline := big.NewInt(int64(msg.Deadline))
 	msgNonce := big.NewInt(int64(msg.Nonce))
 	calldata := common.Hex2Bytes(msg.Calldata)
-	data, err := r.l1MessengerABI.Pack("relayMessageWithProof", from, target, value, fee, deadline, msgNonce, calldata, proof)
+	data, err := r.l1MessengerABI.Pack("relayMessageWithProof", from, target, value, msgNonce, calldata, proof)
 	if err != nil {
 		log.Error("Failed to pack relayMessageWithProof", "msg.nonce", msg.Nonce, "err", err)
 		// TODO: need to skip this message by changing its status to MsgError
@@ -168,10 +223,10 @@ func (r *Layer2Relayer) processSavedEvent(msg *orm.L2Message, index uint64) erro
 
 	hash, err := r.messageSender.SendTransaction(msg.MsgHash, &r.cfg.MessengerContractAddress, big.NewInt(0), data)
 	if err != nil && err.Error() == "execution reverted: Message expired" {
-		return r.db.UpdateLayer2Status(r.ctx, msg.MsgHash, orm.MsgExpired)
+		return r.db.UpdateLayer2Status(r.ctx, msg.MsgHash, types.MsgExpired)
 	}
 	if err != nil && err.Error() == "execution reverted: Message successfully executed" {
-		return r.db.UpdateLayer2Status(r.ctx, msg.MsgHash, orm.MsgConfirmed)
+		return r.db.UpdateLayer2Status(r.ctx, msg.MsgHash, types.MsgConfirmed)
 	}
 	if err != nil {
 		if !errors.Is(err, sender.ErrNoAvailableAccount) {
@@ -183,7 +238,7 @@ func (r *Layer2Relayer) processSavedEvent(msg *orm.L2Message, index uint64) erro
 
 	// save status in db
 	// @todo handle db error
-	err = r.db.UpdateLayer2StatusAndLayer1Hash(r.ctx, msg.MsgHash, orm.MsgSubmitted, hash.String())
+	err = r.db.UpdateLayer2StatusAndLayer1Hash(r.ctx, msg.MsgHash, types.MsgSubmitted, hash.String())
 	if err != nil {
 		log.Error("UpdateLayer2StatusAndLayer1Hash failed", "msgHash", msg.MsgHash, "err", err)
 		return err
@@ -192,104 +247,104 @@ func (r *Layer2Relayer) processSavedEvent(msg *orm.L2Message, index uint64) erro
 	return nil
 }
 
-// ProcessPendingBatches submit batch data to layer 1 rollup contract
-func (r *Layer2Relayer) ProcessPendingBatches(wg *sync.WaitGroup) {
-	defer wg.Done()
-	// batches are sorted by batch index in increasing order
-	batchesInDB, err := r.db.GetPendingBatches(1)
+// ProcessGasPriceOracle imports gas price to layer1
+func (r *Layer2Relayer) ProcessGasPriceOracle() {
+	batch, err := r.db.GetLatestBatch()
 	if err != nil {
-		log.Error("Failed to fetch pending L2 batches", "err", err)
-		return
-	}
-	if len(batchesInDB) == 0 {
-		return
-	}
-	id := batchesInDB[0]
-	// @todo add support to relay multiple batches
-
-	batches, err := r.db.GetBlockBatches(map[string]interface{}{"id": id})
-	if err != nil || len(batches) == 0 {
-		log.Error("Failed to GetBlockBatches", "batch_id", id, "err", err)
-		return
-	}
-	batch := batches[0]
-
-	traces, err := r.db.GetBlockTraces(map[string]interface{}{"batch_id": id}, "ORDER BY number ASC")
-	if err != nil || len(traces) == 0 {
-		log.Error("Failed to GetBlockTraces", "batch_id", id, "err", err)
+		log.Error("Failed to GetLatestBatch", "err", err)
 		return
 	}
 
-	layer2Batch := &bridge_abi.IZKRollupLayer2Batch{
-		BatchIndex: batch.Index,
-		ParentHash: common.HexToHash(batch.ParentHash),
-		Blocks:     make([]bridge_abi.IZKRollupLayer2BlockHeader, len(traces)),
-	}
-
-	parentHash := common.HexToHash(batch.ParentHash)
-	for i, trace := range traces {
-		layer2Batch.Blocks[i] = bridge_abi.IZKRollupLayer2BlockHeader{
-			BlockHash:   trace.Header.Hash(),
-			ParentHash:  parentHash,
-			BaseFee:     trace.Header.BaseFee,
-			StateRoot:   trace.StorageTrace.RootAfter,
-			BlockHeight: trace.Header.Number.Uint64(),
-			GasUsed:     0,
-			Timestamp:   trace.Header.Time,
-			ExtraData:   make([]byte, 0),
-			Txs:         make([]bridge_abi.IZKRollupLayer2Transaction, len(trace.Transactions)),
-		}
-		for j, tx := range trace.Transactions {
-			layer2Batch.Blocks[i].Txs[j] = bridge_abi.IZKRollupLayer2Transaction{
-				Caller:   tx.From,
-				Nonce:    tx.Nonce,
-				Gas:      tx.Gas,
-				GasPrice: tx.GasPrice.ToInt(),
-				Value:    tx.Value.ToInt(),
-				Data:     common.Hex2Bytes(tx.Data),
-				R:        tx.R.ToInt(),
-				S:        tx.S.ToInt(),
-				V:        tx.V.ToInt().Uint64(),
-			}
-			if tx.To != nil {
-				layer2Batch.Blocks[i].Txs[j].Target = *tx.To
-			}
-			layer2Batch.Blocks[i].GasUsed += trace.ExecutionResults[j].Gas
+	if batch.OracleStatus == types.GasOraclePending {
+		suggestGasPrice, err := r.l2Client.SuggestGasPrice(r.ctx)
+		if err != nil {
+			log.Error("Failed to fetch SuggestGasPrice from l2geth", "err", err)
+			return
 		}
+		suggestGasPriceUint64 := uint64(suggestGasPrice.Int64())
+		expectedDelta := r.lastGasPrice * r.gasPriceDiff / gasPriceDiffPrecision
 
-		// for next iteration
-		parentHash = layer2Batch.Blocks[i].BlockHash
+		// last is undefine or (suggestGasPriceUint64 >= minGasPrice && exceed diff)
+		if r.lastGasPrice == 0 || (suggestGasPriceUint64 >= r.minGasPrice && (suggestGasPriceUint64 >= r.lastGasPrice+expectedDelta || suggestGasPriceUint64 <= r.lastGasPrice-expectedDelta)) {
+			data, err := r.l2GasOracleABI.Pack("setL2BaseFee", suggestGasPrice)
+			if err != nil {
+				log.Error("Failed to pack setL2BaseFee", "batch.Hash", batch.Hash, "GasPrice", suggestGasPrice.Uint64(), "err", err)
+				return
+			}
+
+			hash, err := r.gasOracleSender.SendTransaction(batch.Hash, &r.cfg.GasPriceOracleContractAddress, big.NewInt(0), data)
+			if err != nil {
+				if !errors.Is(err, sender.ErrNoAvailableAccount) {
+					log.Error("Failed to send setL2BaseFee tx to layer2 ", "batch.Hash", batch.Hash, "err", err)
+				}
+				return
+			}
+
+			err = r.db.UpdateL2GasOracleStatusAndOracleTxHash(r.ctx, batch.Hash, types.GasOracleImporting, hash.String())
+			if err != nil {
+				log.Error("UpdateGasOracleStatusAndOracleTxHash failed", "batch.Hash", batch.Hash, "err", err)
+				return
+			}
+			r.lastGasPrice = suggestGasPriceUint64
+			log.Info("Update l2 gas price", "txHash", hash.String(), "GasPrice", suggestGasPrice)
+		}
+	}
+}
+
+// SendCommitTx sends commitBatches tx to L1.
+func (r *Layer2Relayer) SendCommitTx(batchData []*types.BatchData) error {
+	if len(batchData) == 0 {
+		log.Error("SendCommitTx receives empty batch")
+		return nil
 	}
 
-	data, err := r.l1RollupABI.Pack("commitBatch", layer2Batch)
+	// pack calldata
+	commitBatches := make([]bridge_abi.IScrollChainBatch, len(batchData))
+	for i, batch := range batchData {
+		commitBatches[i] = batch.Batch
+	}
+	calldata, err := r.l1RollupABI.Pack("commitBatches", commitBatches)
 	if err != nil {
-		log.Error("Failed to pack commitBatch", "id", id, "index", batch.Index, "err", err)
-		return
+		log.Error("Failed to pack commitBatches",
+			"error", err,
+			"start_batch_index", commitBatches[0].BatchIndex,
+			"end_batch_index", commitBatches[len(commitBatches)-1].BatchIndex)
+		return err
 	}
 
-	txID := id + "-commit"
-	// add suffix `-commit` to avoid duplication with finalize tx in unit tests
-	hash, err := r.rollupSender.SendTransaction(txID, &r.cfg.RollupContractAddress, big.NewInt(0), data)
+	// generate a unique txID and send transaction
+	var bytes []byte
+	for _, batch := range batchData {
+		bytes = append(bytes, batch.Hash().Bytes()...)
+	}
+	txID := crypto.Keccak256Hash(bytes).String()
+	txHash, err := r.rollupSender.SendTransaction(txID, &r.cfg.RollupContractAddress, big.NewInt(0), calldata)
 	if err != nil {
 		if !errors.Is(err, sender.ErrNoAvailableAccount) {
-			log.Error("Failed to send commitBatch tx to layer1 ", "id", id, "index", batch.Index, "err", err)
+			log.Error("Failed to send commitBatches tx to layer1 ", "err", err)
 		}
-		return
+		return err
 	}
-	log.Info("commitBatch in layer1", "batch_id", id, "index", batch.Index, "hash", hash)
+	log.Info("Sent the commitBatches tx to layer1",
+		"tx_hash", txHash.Hex(),
+		"start_batch_index", commitBatches[0].BatchIndex,
+		"end_batch_index", commitBatches[len(commitBatches)-1].BatchIndex)
 
 	// record and sync with db, @todo handle db error
-	err = r.db.UpdateCommitTxHashAndRollupStatus(r.ctx, id, hash.String(), orm.RollupCommitting)
-	if err != nil {
-		log.Error("UpdateCommitTxHashAndRollupStatus failed", "id", id, "index", batch.Index, "err", err)
+	batchHashes := make([]string, len(batchData))
+	for i, batch := range batchData {
+		batchHashes[i] = batch.Hash().Hex()
+		err = r.db.UpdateCommitTxHashAndRollupStatus(r.ctx, batchHashes[i], txHash.String(), types.RollupCommitting)
+		if err != nil {
+			log.Error("UpdateCommitTxHashAndRollupStatus failed", "hash", batchHashes[i], "index", batch.Batch.BatchIndex, "err", err)
+		}
 	}
-	r.processingCommitment.Store(txID, id)
+	r.processingBatchesCommitment.Store(txID, batchHashes)
+	return nil
 }
 
 // ProcessCommittedBatches submit proof to layer 1 rollup contract
-func (r *Layer2Relayer) ProcessCommittedBatches(wg *sync.WaitGroup) {
-	defer wg.Done()
-
+func (r *Layer2Relayer) ProcessCommittedBatches() {
 	// set skipped batches in a single db operation
 	if count, err := r.db.UpdateSkippedBatches(); err != nil {
 		log.Error("UpdateSkippedBatches failed", "err", err)
@@ -307,91 +362,91 @@ func (r *Layer2Relayer) ProcessCommittedBatches(wg *sync.WaitGroup) {
 	if len(batches) == 0 {
 		return
 	}
-	id := batches[0]
+	hash := batches[0]
 	// @todo add support to relay multiple batches
 
-	status, err := r.db.GetProvingStatusByID(id)
+	status, err := r.db.GetProvingStatusByHash(hash)
 	if err != nil {
-		log.Error("GetProvingStatusByID failed", "id", id, "err", err)
+		log.Error("GetProvingStatusByHash failed", "hash", hash, "err", err)
 		return
 	}
 
 	switch status {
-	case orm.ProvingTaskUnassigned, orm.ProvingTaskAssigned:
+	case types.ProvingTaskUnassigned, types.ProvingTaskAssigned:
 		// The proof for this block is not ready yet.
 		return
 
-	case orm.ProvingTaskProved:
+	case types.ProvingTaskProved:
 		// It's an intermediate state. The roller manager received the proof but has not verified
 		// the proof yet. We don't roll up the proof until it's verified.
 		return
 
-	case orm.ProvingTaskFailed, orm.ProvingTaskSkipped:
+	case types.ProvingTaskFailed, types.ProvingTaskSkipped:
 		// note: this is covered by UpdateSkippedBatches, but we keep it for completeness's sake
 
-		if err = r.db.UpdateRollupStatus(r.ctx, id, orm.RollupFinalizationSkipped); err != nil {
-			log.Warn("UpdateRollupStatus failed", "id", id, "err", err)
+		if err = r.db.UpdateRollupStatus(r.ctx, hash, types.RollupFinalizationSkipped); err != nil {
+			log.Warn("UpdateRollupStatus failed", "hash", hash, "err", err)
 		}
 
-	case orm.ProvingTaskVerified:
-		log.Info("Start to roll up zk proof", "id", id)
+	case types.ProvingTaskVerified:
+		log.Info("Start to roll up zk proof", "hash", hash)
 		success := false
 
 		defer func() {
 			// TODO: need to revisit this and have a more fine-grained error handling
 			if !success {
-				log.Info("Failed to upload the proof, change rollup status to FinalizationSkipped", "id", id)
-				if err = r.db.UpdateRollupStatus(r.ctx, id, orm.RollupFinalizationSkipped); err != nil {
-					log.Warn("UpdateRollupStatus failed", "id", id, "err", err)
+				log.Info("Failed to upload the proof, change rollup status to FinalizationSkipped", "hash", hash)
+				if err = r.db.UpdateRollupStatus(r.ctx, hash, types.RollupFinalizationSkipped); err != nil {
+					log.Warn("UpdateRollupStatus failed", "hash", hash, "err", err)
 				}
 			}
 		}()
 
-		proofBuffer, instanceBuffer, err := r.db.GetVerifiedProofAndInstanceByID(id)
+		proofBuffer, instanceBuffer, err := r.db.GetVerifiedProofAndInstanceByHash(hash)
 		if err != nil {
-			log.Warn("fetch get proof by id failed", "id", id, "err", err)
+			log.Warn("fetch get proof by hash failed", "hash", hash, "err", err)
 			return
 		}
 		if proofBuffer == nil || instanceBuffer == nil {
-			log.Warn("proof or instance not ready", "id", id)
+			log.Warn("proof or instance not ready", "hash", hash)
 			return
 		}
 		if len(proofBuffer)%32 != 0 {
-			log.Error("proof buffer has wrong length", "id", id, "length", len(proofBuffer))
+			log.Error("proof buffer has wrong length", "hash", hash, "length", len(proofBuffer))
 			return
 		}
 		if len(instanceBuffer)%32 != 0 {
-			log.Warn("instance buffer has wrong length", "id", id, "length", len(instanceBuffer))
+			log.Warn("instance buffer has wrong length", "hash", hash, "length", len(instanceBuffer))
 			return
 		}
 
 		proof := utils.BufferToUint256Le(proofBuffer)
 		instance := utils.BufferToUint256Le(instanceBuffer)
-		data, err := r.l1RollupABI.Pack("finalizeBatchWithProof", common.HexToHash(id), proof, instance)
+		data, err := r.l1RollupABI.Pack("finalizeBatchWithProof", common.HexToHash(hash), proof, instance)
 		if err != nil {
 			log.Error("Pack finalizeBatchWithProof failed", "err", err)
 			return
 		}
 
-		txID := id + "-finalize"
+		txID := hash + "-finalize"
 		// add suffix `-finalize` to avoid duplication with commit tx in unit tests
 		txHash, err := r.rollupSender.SendTransaction(txID, &r.cfg.RollupContractAddress, big.NewInt(0), data)
-		hash := &txHash
+		finalizeTxHash := &txHash
 		if err != nil {
 			if !errors.Is(err, sender.ErrNoAvailableAccount) {
-				log.Error("finalizeBatchWithProof in layer1 failed", "id", id, "err", err)
+				log.Error("finalizeBatchWithProof in layer1 failed", "hash", hash, "err", err)
 			}
 			return
 		}
-		log.Info("finalizeBatchWithProof in layer1", "batch_id", id, "hash", hash)
+		log.Info("finalizeBatchWithProof in layer1", "batch_hash", hash, "tx_hash", hash)
 
 		// record and sync with db, @todo handle db error
-		err = r.db.UpdateFinalizeTxHashAndRollupStatus(r.ctx, id, hash.String(), orm.RollupFinalizing)
+		err = r.db.UpdateFinalizeTxHashAndRollupStatus(r.ctx, hash, finalizeTxHash.String(), types.RollupFinalizing)
 		if err != nil {
-			log.Warn("UpdateFinalizeTxHashAndRollupStatus failed", "batch_id", id, "err", err)
+			log.Warn("UpdateFinalizeTxHashAndRollupStatus failed", "batch_hash", hash, "err", err)
 		}
 		success = true
-		r.processingFinalization.Store(txID, id)
+		r.processingFinalization.Store(txID, hash)
 
 	default:
 		log.Error("encounter unreachable case in ProcessCommittedBatches",
@@ -402,28 +457,58 @@ func (r *Layer2Relayer) ProcessCommittedBatches(wg *sync.WaitGroup) {
 
 // Start the relayer process
 func (r *Layer2Relayer) Start() {
-	go func() {
-		// trigger by timer
+	loop := func(ctx context.Context, f func()) {
 		ticker := time.NewTicker(time.Second)
 		defer ticker.Stop()
 
 		for {
 			select {
-			case <-ticker.C:
-				var wg = sync.WaitGroup{}
-				wg.Add(3)
-				go r.ProcessSavedEvents(&wg)
-				go r.ProcessPendingBatches(&wg)
-				go r.ProcessCommittedBatches(&wg)
-				wg.Wait()
-			case confirmation := <-r.messageCh:
-				r.handleConfirmation(confirmation)
-			case confirmation := <-r.rollupCh:
-				r.handleConfirmation(confirmation)
-			case <-r.stopCh:
+			case <-ctx.Done():
 				return
+			case <-ticker.C:
+				f()
 			}
 		}
+	}
+
+	go func() {
+		ctx, cancel := context.WithCancel(r.ctx)
+
+		go loop(ctx, r.ProcessSavedEvents)
+		go loop(ctx, r.ProcessCommittedBatches)
+		go loop(ctx, r.ProcessGasPriceOracle)
+
+		go func(ctx context.Context) {
+			for {
+				select {
+				case <-ctx.Done():
+					return
+				case confirmation := <-r.messageCh:
+					r.handleConfirmation(confirmation)
+				case confirmation := <-r.rollupCh:
+					r.handleConfirmation(confirmation)
+				case cfm := <-r.gasOracleCh:
+					if !cfm.IsSuccessful {
+						// @discuss: maybe make it pending again?
+						err := r.db.UpdateL2GasOracleStatusAndOracleTxHash(r.ctx, cfm.ID, types.GasOracleFailed, cfm.TxHash.String())
+						if err != nil {
+							log.Warn("UpdateL2GasOracleStatusAndOracleTxHash failed", "err", err)
+						}
+						log.Warn("transaction confirmed but failed in layer1", "confirmation", cfm)
+					} else {
+						// @todo handle db error
+						err := r.db.UpdateL2GasOracleStatusAndOracleTxHash(r.ctx, cfm.ID, types.GasOracleImported, cfm.TxHash.String())
+						if err != nil {
+							log.Warn("UpdateL2GasOracleStatusAndOracleTxHash failed", "err", err)
+						}
+						log.Info("transaction confirmed in layer1", "confirmation", cfm)
+					}
+				}
+			}
+		}(ctx)
+
+		<-r.stopCh
+		cancel()
 	}()
 }
 
@@ -443,31 +528,33 @@ func (r *Layer2Relayer) handleConfirmation(confirmation *sender.Confirmation) {
 	if msgHash, ok := r.processingMessage.Load(confirmation.ID); ok {
 		transactionType = "MessageRelay"
 		// @todo handle db error
-		err := r.db.UpdateLayer2StatusAndLayer1Hash(r.ctx, msgHash.(string), orm.MsgConfirmed, confirmation.TxHash.String())
+		err := r.db.UpdateLayer2StatusAndLayer1Hash(r.ctx, msgHash.(string), types.MsgConfirmed, confirmation.TxHash.String())
 		if err != nil {
 			log.Warn("UpdateLayer2StatusAndLayer1Hash failed", "msgHash", msgHash.(string), "err", err)
 		}
 		r.processingMessage.Delete(confirmation.ID)
 	}
 
-	// check whether it is block commitment transaction
-	if batchID, ok := r.processingCommitment.Load(confirmation.ID); ok {
-		transactionType = "BatchCommitment"
-		// @todo handle db error
-		err := r.db.UpdateCommitTxHashAndRollupStatus(r.ctx, batchID.(string), confirmation.TxHash.String(), orm.RollupCommitted)
-		if err != nil {
-			log.Warn("UpdateCommitTxHashAndRollupStatus failed", "batch_id", batchID.(string), "err", err)
+	// check whether it is CommitBatches transaction
+	if batchBatches, ok := r.processingBatchesCommitment.Load(confirmation.ID); ok {
+		transactionType = "BatchesCommitment"
+		for _, batchHash := range batchBatches.([]string) {
+			// @todo handle db error
+			err := r.db.UpdateCommitTxHashAndRollupStatus(r.ctx, batchHash, confirmation.TxHash.String(), types.RollupCommitted)
+			if err != nil {
+				log.Warn("UpdateCommitTxHashAndRollupStatus failed", "batch_hash", batchHash, "err", err)
+			}
 		}
-		r.processingCommitment.Delete(confirmation.ID)
+		r.processingBatchesCommitment.Delete(confirmation.ID)
 	}
 
 	// check whether it is proof finalization transaction
-	if batchID, ok := r.processingFinalization.Load(confirmation.ID); ok {
+	if batchHash, ok := r.processingFinalization.Load(confirmation.ID); ok {
 		transactionType = "ProofFinalization"
 		// @todo handle db error
-		err := r.db.UpdateFinalizeTxHashAndRollupStatus(r.ctx, batchID.(string), confirmation.TxHash.String(), orm.RollupFinalized)
+		err := r.db.UpdateFinalizeTxHashAndRollupStatus(r.ctx, batchHash.(string), confirmation.TxHash.String(), types.RollupFinalized)
 		if err != nil {
-			log.Warn("UpdateFinalizeTxHashAndRollupStatus failed", "batch_id", batchID.(string), "err", err)
+			log.Warn("UpdateFinalizeTxHashAndRollupStatus failed", "batch_hash", batchHash.(string), "err", err)
 		}
 		r.processingFinalization.Delete(confirmation.ID)
 	}

bridge/l2/relayer_test.go

@@ -5,28 +5,26 @@ import (
 	"encoding/json"
 	"math/big"
 	"os"
-	"sync"
+	"strconv"
 	"testing"
-	"time"
 
-	"github.com/scroll-tech/go-ethereum/core/types"
+	"github.com/scroll-tech/go-ethereum/common"
+	geth_types "github.com/scroll-tech/go-ethereum/core/types"
 	"github.com/stretchr/testify/assert"
 
+	"scroll-tech/common/types"
+
 	"scroll-tech/database"
 	"scroll-tech/database/migrate"
-	"scroll-tech/database/orm"
 )
 
 var (
-	templateL2Message = []*orm.L2Message{
+	templateL2Message = []*types.L2Message{
 		{
 			Nonce:      1,
 			Height:     1,
 			Sender:     "0x596a746661dbed76a84556111c2872249b070e15",
 			Value:      "100",
-			Fee:        "100",
-			GasLimit:   11529940,
-			Deadline:   uint64(time.Now().Unix()),
 			Target:     "0x2c73620b223808297ea734d946813f0dd78eb8f7",
 			Calldata:   "testdata",
 			Layer2Hash: "hash0",
@@ -41,7 +39,7 @@ func testCreateNewRelayer(t *testing.T) {
 	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
 	defer db.Close()
 
-	relayer, err := NewLayer2Relayer(context.Background(), db, cfg.L2Config.RelayerConfig)
+	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, cfg.L2Config.RelayerConfig)
 	assert.NoError(t, err)
 	defer relayer.Stop()
 
@@ -56,113 +54,43 @@ func testL2RelayerProcessSaveEvents(t *testing.T) {
 	defer db.Close()
 
 	l2Cfg := cfg.L2Config
-	relayer, err := NewLayer2Relayer(context.Background(), db, l2Cfg.RelayerConfig)
+	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, l2Cfg.RelayerConfig)
 	assert.NoError(t, err)
 	defer relayer.Stop()
 
 	err = db.SaveL2Messages(context.Background(), templateL2Message)
 	assert.NoError(t, err)
 
-	traces := []*types.BlockTrace{
+	traces := []*geth_types.BlockTrace{
 		{
-			Header: &types.Header{
+			Header: &geth_types.Header{
 				Number: big.NewInt(int64(templateL2Message[0].Height)),
 			},
 		},
 		{
-			Header: &types.Header{
+			Header: &geth_types.Header{
 				Number: big.NewInt(int64(templateL2Message[0].Height + 1)),
 			},
 		},
 	}
-	err = db.InsertBlockTraces(traces)
+	err = db.InsertL2BlockTraces(traces)
 	assert.NoError(t, err)
 
 	dbTx, err := db.Beginx()
 	assert.NoError(t, err)
-	batchID, err := db.NewBatchInDBTx(dbTx,
-		&orm.BlockInfo{Number: templateL2Message[0].Height},
-		&orm.BlockInfo{Number: templateL2Message[0].Height + 1},
-		"0f", 1, 194676) // parentHash & totalTxNum & totalL2Gas don't really matter here
-	assert.NoError(t, err)
-	err = db.SetBatchIDForBlocksInDBTx(dbTx, []uint64{
-		templateL2Message[0].Height,
-		templateL2Message[0].Height + 1}, batchID)
-	assert.NoError(t, err)
-	err = dbTx.Commit()
+	assert.NoError(t, db.NewBatchInDBTx(dbTx, batchData1))
+	batchHash := batchData1.Hash().Hex()
+	assert.NoError(t, db.SetBatchHashForL2BlocksInDBTx(dbTx, []uint64{1}, batchHash))
+	assert.NoError(t, dbTx.Commit())
+
+	err = db.UpdateRollupStatus(context.Background(), batchHash, types.RollupFinalized)
 	assert.NoError(t, err)
 
-	err = db.UpdateRollupStatus(context.Background(), batchID, orm.RollupFinalized)
-	assert.NoError(t, err)
-
-	var wg = sync.WaitGroup{}
-	wg.Add(1)
-	relayer.ProcessSavedEvents(&wg)
-	wg.Wait()
+	relayer.ProcessSavedEvents()
 
 	msg, err := db.GetL2MessageByNonce(templateL2Message[0].Nonce)
 	assert.NoError(t, err)
-	assert.Equal(t, orm.MsgSubmitted, msg.Status)
-}
-
-func testL2RelayerProcessPendingBatches(t *testing.T) {
-	// Create db handler and reset db.
-	db, err := database.NewOrmFactory(cfg.DBConfig)
-	assert.NoError(t, err)
-	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
-	defer db.Close()
-
-	l2Cfg := cfg.L2Config
-	relayer, err := NewLayer2Relayer(context.Background(), db, l2Cfg.RelayerConfig)
-	assert.NoError(t, err)
-	defer relayer.Stop()
-
-	// this blockresult has number of 0x4, need to change it to match the testcase
-	// In this testcase scenario, db will store two blocks with height 0x4 and 0x3
-	var traces []*types.BlockTrace
-
-	templateBlockTrace, err := os.ReadFile("../../common/testdata/blockTrace_02.json")
-	assert.NoError(t, err)
-	blockTrace := &types.BlockTrace{}
-	err = json.Unmarshal(templateBlockTrace, blockTrace)
-	assert.NoError(t, err)
-	traces = append(traces, blockTrace)
-	templateBlockTrace, err = os.ReadFile("../../common/testdata/blockTrace_03.json")
-	assert.NoError(t, err)
-	blockTrace = &types.BlockTrace{}
-	err = json.Unmarshal(templateBlockTrace, blockTrace)
-	assert.NoError(t, err)
-	traces = append(traces, blockTrace)
-
-	err = db.InsertBlockTraces(traces)
-	assert.NoError(t, err)
-
-	dbTx, err := db.Beginx()
-	assert.NoError(t, err)
-	batchID, err := db.NewBatchInDBTx(dbTx,
-		&orm.BlockInfo{Number: traces[0].Header.Number.Uint64()},
-		&orm.BlockInfo{Number: traces[1].Header.Number.Uint64()},
-		"ff", 1, 194676) // parentHash & totalTxNum & totalL2Gas don't really matter here
-	assert.NoError(t, err)
-	err = db.SetBatchIDForBlocksInDBTx(dbTx, []uint64{
-		traces[0].Header.Number.Uint64(),
-		traces[1].Header.Number.Uint64()}, batchID)
-	assert.NoError(t, err)
-	err = dbTx.Commit()
-	assert.NoError(t, err)
-
-	// err = db.UpdateRollupStatus(context.Background(), batchID, orm.RollupPending)
-	// assert.NoError(t, err)
-
-	var wg = sync.WaitGroup{}
-	wg.Add(1)
-	relayer.ProcessPendingBatches(&wg)
-	wg.Wait()
-
-	// Check if Rollup Result is changed successfully
-	status, err := db.GetRollupStatus(batchID)
-	assert.NoError(t, err)
-	assert.Equal(t, orm.RollupCommitting, status)
+	assert.Equal(t, types.MsgSubmitted, msg.Status)
 }
 
 func testL2RelayerProcessCommittedBatches(t *testing.T) {
@@ -173,35 +101,32 @@ func testL2RelayerProcessCommittedBatches(t *testing.T) {
 	defer db.Close()
 
 	l2Cfg := cfg.L2Config
-	relayer, err := NewLayer2Relayer(context.Background(), db, l2Cfg.RelayerConfig)
+	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, l2Cfg.RelayerConfig)
 	assert.NoError(t, err)
 	defer relayer.Stop()
 
 	dbTx, err := db.Beginx()
 	assert.NoError(t, err)
-	batchID, err := db.NewBatchInDBTx(dbTx, &orm.BlockInfo{}, &orm.BlockInfo{}, "0", 1, 194676) // startBlock & endBlock & parentHash & totalTxNum & totalL2Gas don't really matter here
-	assert.NoError(t, err)
+	assert.NoError(t, db.NewBatchInDBTx(dbTx, batchData1))
+	batchHash := batchData1.Hash().Hex()
 	err = dbTx.Commit()
 	assert.NoError(t, err)
 
-	err = db.UpdateRollupStatus(context.Background(), batchID, orm.RollupCommitted)
+	err = db.UpdateRollupStatus(context.Background(), batchHash, types.RollupCommitted)
 	assert.NoError(t, err)
 
 	tProof := []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31}
 	tInstanceCommitments := []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31}
-	err = db.UpdateProofByID(context.Background(), batchID, tProof, tInstanceCommitments, 100)
+	err = db.UpdateProofByHash(context.Background(), batchHash, tProof, tInstanceCommitments, 100)
 	assert.NoError(t, err)
-	err = db.UpdateProvingStatus(batchID, orm.ProvingTaskVerified)
+	err = db.UpdateProvingStatus(batchHash, types.ProvingTaskVerified)
 	assert.NoError(t, err)
 
-	var wg = sync.WaitGroup{}
-	wg.Add(1)
-	relayer.ProcessCommittedBatches(&wg)
-	wg.Wait()
+	relayer.ProcessCommittedBatches()
 
-	status, err := db.GetRollupStatus(batchID)
+	status, err := db.GetRollupStatus(batchHash)
 	assert.NoError(t, err)
-	assert.Equal(t, orm.RollupFinalizing, status)
+	assert.Equal(t, types.RollupFinalizing, status)
 }
 
 func testL2RelayerSkipBatches(t *testing.T) {
@@ -212,62 +137,75 @@ func testL2RelayerSkipBatches(t *testing.T) {
 	defer db.Close()
 
 	l2Cfg := cfg.L2Config
-	relayer, err := NewLayer2Relayer(context.Background(), db, l2Cfg.RelayerConfig)
+	relayer, err := NewLayer2Relayer(context.Background(), l2Cli, db, l2Cfg.RelayerConfig)
 	assert.NoError(t, err)
 	defer relayer.Stop()
 
-	createBatch := func(rollupStatus orm.RollupStatus, provingStatus orm.ProvingStatus) string {
+	createBatch := func(rollupStatus types.RollupStatus, provingStatus types.ProvingStatus, index uint64) string {
 		dbTx, err := db.Beginx()
 		assert.NoError(t, err)
-		batchID, err := db.NewBatchInDBTx(dbTx, &orm.BlockInfo{}, &orm.BlockInfo{}, "0", 1, 194676) // startBlock & endBlock & parentHash & totalTxNum & totalL2Gas don't really matter here
-		assert.NoError(t, err)
+		batchData := genBatchData(t, index)
+		assert.NoError(t, db.NewBatchInDBTx(dbTx, batchData))
+		batchHash := batchData.Hash().Hex()
 		err = dbTx.Commit()
 		assert.NoError(t, err)
 
-		err = db.UpdateRollupStatus(context.Background(), batchID, rollupStatus)
+		err = db.UpdateRollupStatus(context.Background(), batchHash, rollupStatus)
 		assert.NoError(t, err)
 
 		tProof := []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31}
 		tInstanceCommitments := []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31}
-		err = db.UpdateProofByID(context.Background(), batchID, tProof, tInstanceCommitments, 100)
+		err = db.UpdateProofByHash(context.Background(), batchHash, tProof, tInstanceCommitments, 100)
 		assert.NoError(t, err)
-		err = db.UpdateProvingStatus(batchID, provingStatus)
+		err = db.UpdateProvingStatus(batchHash, provingStatus)
 		assert.NoError(t, err)
 
-		return batchID
+		return batchHash
 	}
 
 	skipped := []string{
-		createBatch(orm.RollupCommitted, orm.ProvingTaskSkipped),
-		createBatch(orm.RollupCommitted, orm.ProvingTaskFailed),
+		createBatch(types.RollupCommitted, types.ProvingTaskSkipped, 1),
+		createBatch(types.RollupCommitted, types.ProvingTaskFailed, 2),
 	}
 
 	notSkipped := []string{
-		createBatch(orm.RollupPending, orm.ProvingTaskSkipped),
-		createBatch(orm.RollupCommitting, orm.ProvingTaskSkipped),
-		createBatch(orm.RollupFinalizing, orm.ProvingTaskSkipped),
-		createBatch(orm.RollupFinalized, orm.ProvingTaskSkipped),
-		createBatch(orm.RollupPending, orm.ProvingTaskFailed),
-		createBatch(orm.RollupCommitting, orm.ProvingTaskFailed),
-		createBatch(orm.RollupFinalizing, orm.ProvingTaskFailed),
-		createBatch(orm.RollupFinalized, orm.ProvingTaskFailed),
-		createBatch(orm.RollupCommitted, orm.ProvingTaskVerified),
+		createBatch(types.RollupPending, types.ProvingTaskSkipped, 3),
+		createBatch(types.RollupCommitting, types.ProvingTaskSkipped, 4),
+		createBatch(types.RollupFinalizing, types.ProvingTaskSkipped, 5),
+		createBatch(types.RollupFinalized, types.ProvingTaskSkipped, 6),
+		createBatch(types.RollupPending, types.ProvingTaskFailed, 7),
+		createBatch(types.RollupCommitting, types.ProvingTaskFailed, 8),
+		createBatch(types.RollupFinalizing, types.ProvingTaskFailed, 9),
+		createBatch(types.RollupFinalized, types.ProvingTaskFailed, 10),
+		createBatch(types.RollupCommitted, types.ProvingTaskVerified, 11),
 	}
 
-	var wg = sync.WaitGroup{}
-	wg.Add(1)
-	relayer.ProcessCommittedBatches(&wg)
-	wg.Wait()
+	relayer.ProcessCommittedBatches()
 
 	for _, id := range skipped {
 		status, err := db.GetRollupStatus(id)
 		assert.NoError(t, err)
-		assert.Equal(t, orm.RollupFinalizationSkipped, status)
+		assert.Equal(t, types.RollupFinalizationSkipped, status)
 	}
 
 	for _, id := range notSkipped {
 		status, err := db.GetRollupStatus(id)
 		assert.NoError(t, err)
-		assert.NotEqual(t, orm.RollupFinalizationSkipped, status)
+		assert.NotEqual(t, types.RollupFinalizationSkipped, status)
 	}
 }
+
+func genBatchData(t *testing.T, index uint64) *types.BatchData {
+	templateBlockTrace, err := os.ReadFile("../../common/testdata/blockTrace_02.json")
+	assert.NoError(t, err)
+	// unmarshal blockTrace
+	blockTrace := &geth_types.BlockTrace{}
+	err = json.Unmarshal(templateBlockTrace, blockTrace)
+	assert.NoError(t, err)
+	blockTrace.Header.ParentHash = common.HexToHash("0x" + strconv.FormatUint(index+1, 16))
+	parentBatch := &types.BlockBatch{
+		Index: index,
+		Hash:  "0x0000000000000000000000000000000000000000",
+	}
+	return types.NewBatchData(parentBatch, []*geth_types.BlockTrace{blockTrace}, nil)
+}

bridge/l2/watcher.go

@@ -2,6 +2,7 @@ package l2
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"math/big"
 	"reflect"
@@ -10,18 +11,24 @@ import (
 	geth "github.com/scroll-tech/go-ethereum"
 	"github.com/scroll-tech/go-ethereum/accounts/abi"
 	"github.com/scroll-tech/go-ethereum/common"
-	"github.com/scroll-tech/go-ethereum/core/types"
+	geth_types "github.com/scroll-tech/go-ethereum/core/types"
 	"github.com/scroll-tech/go-ethereum/ethclient"
 	"github.com/scroll-tech/go-ethereum/event"
 	"github.com/scroll-tech/go-ethereum/log"
+	"github.com/scroll-tech/go-ethereum/metrics"
+	"github.com/scroll-tech/go-ethereum/rpc"
 
 	bridge_abi "scroll-tech/bridge/abi"
 	"scroll-tech/bridge/utils"
 
-	"scroll-tech/database"
-	"scroll-tech/database/orm"
+	"scroll-tech/common/types"
 
-	"scroll-tech/bridge/config"
+	"scroll-tech/database"
+)
+
+// Metrics
+var (
+	bridgeL2MsgSyncHeightGauge = metrics.NewRegisteredGauge("bridge/l2/msg/sync/height", nil)
 )
 
 type relayedMessage struct {
@@ -39,39 +46,98 @@ type WatcherClient struct {
 
 	orm database.OrmFactory
 
-	confirmations    uint64
+	confirmations rpc.BlockNumber
+
 	messengerAddress common.Address
 	messengerABI     *abi.ABI
 
+	messageQueueAddress common.Address
+	messageQueueABI     *abi.ABI
+
 	// The height of the block that the watcher has retrieved event logs
 	processedMsgHeight uint64
 
 	stopped uint64
 	stopCh  chan struct{}
-
-	batchProposer *batchProposer
 }
 
 // NewL2WatcherClient take a l2geth instance to generate a l2watcherclient instance
-func NewL2WatcherClient(ctx context.Context, client *ethclient.Client, confirmations uint64, bpCfg *config.BatchProposerConfig, messengerAddress common.Address, orm database.OrmFactory) *WatcherClient {
+func NewL2WatcherClient(ctx context.Context, client *ethclient.Client, confirmations rpc.BlockNumber, messengerAddress, messageQueueAddress common.Address, orm database.OrmFactory) *WatcherClient {
 	savedHeight, err := orm.GetLayer2LatestWatchedHeight()
 	if err != nil {
 		log.Warn("fetch height from db failed", "err", err)
 		savedHeight = 0
 	}
 
-	return &WatcherClient{
+	w := WatcherClient{
 		ctx:                ctx,
 		Client:             client,
 		orm:                orm,
 		processedMsgHeight: uint64(savedHeight),
 		confirmations:      confirmations,
-		messengerAddress:   messengerAddress,
-		messengerABI:       bridge_abi.L2MessengerMetaABI,
-		stopCh:             make(chan struct{}),
-		stopped:            0,
-		batchProposer:      newBatchProposer(bpCfg, orm),
+
+		messengerAddress: messengerAddress,
+		messengerABI:     bridge_abi.L2ScrollMessengerABI,
+
+		messageQueueAddress: messageQueueAddress,
+		messageQueueABI:     bridge_abi.L2MessageQueueABI,
+
+		stopCh:  make(chan struct{}),
+		stopped: 0,
 	}
+
+	// Initialize genesis before we do anything else
+	if err := w.initializeGenesis(); err != nil {
+		panic(fmt.Sprintf("failed to initialize L2 genesis batch, err: %v", err))
+	}
+
+	return &w
+}
+
+func (w *WatcherClient) initializeGenesis() error {
+	if count, err := w.orm.GetBatchCount(); err != nil {
+		return fmt.Errorf("failed to get batch count: %v", err)
+	} else if count > 0 {
+		log.Info("genesis already imported")
+		return nil
+	}
+
+	genesis, err := w.HeaderByNumber(w.ctx, big.NewInt(0))
+	if err != nil {
+		return fmt.Errorf("failed to retrieve L2 genesis header: %v", err)
+	}
+
+	log.Info("retrieved L2 genesis header", "hash", genesis.Hash().String())
+
+	blockTrace := &geth_types.BlockTrace{
+		Coinbase:         nil,
+		Header:           genesis,
+		Transactions:     []*geth_types.TransactionData{},
+		StorageTrace:     nil,
+		ExecutionResults: []*geth_types.ExecutionResult{},
+		MPTWitness:       nil,
+	}
+
+	batchData := types.NewGenesisBatchData(blockTrace)
+
+	if err = AddBatchInfoToDB(w.orm, batchData); err != nil {
+		log.Error("failed to add batch info to DB", "BatchHash", batchData.Hash(), "error", err)
+		return err
+	}
+
+	batchHash := batchData.Hash().Hex()
+
+	if err = w.orm.UpdateProvingStatus(batchHash, types.ProvingTaskProved); err != nil {
+		return fmt.Errorf("failed to update genesis batch proving status: %v", err)
+	}
+
+	if err = w.orm.UpdateRollupStatus(w.ctx, batchHash, types.RollupFinalized); err != nil {
+		return fmt.Errorf("failed to update genesis batch rollup status: %v", err)
+	}
+
+	log.Info("successfully imported genesis batch")
+
+	return nil
 }
 
 // Start the Listening process
@@ -85,7 +151,7 @@ func (w *WatcherClient) Start() {
 
 		// trace fetcher loop
 		go func(ctx context.Context) {
-			ticker := time.NewTicker(3 * time.Second)
+			ticker := time.NewTicker(2 * time.Second)
 			defer ticker.Stop()
 
 			for {
@@ -94,19 +160,12 @@ func (w *WatcherClient) Start() {
 					return
 
 				case <-ticker.C:
-					// get current height
-					number, err := w.BlockNumber(ctx)
+					number, err := utils.GetLatestConfirmedBlockNumber(ctx, w.Client, w.confirmations)
 					if err != nil {
-						log.Error("failed to get_BlockNumber", "err", err)
+						log.Error("failed to get block number", "err", err)
 						continue
 					}
 
-					if number >= w.confirmations {
-						number = number - w.confirmations
-					} else {
-						number = 0
-					}
-
 					w.tryFetchRunningMissingBlocks(ctx, number)
 				}
 			}
@@ -114,7 +173,7 @@ func (w *WatcherClient) Start() {
 
 		// event fetcher loop
 		go func(ctx context.Context) {
-			ticker := time.NewTicker(3 * time.Second)
+			ticker := time.NewTicker(2 * time.Second)
 			defer ticker.Stop()
 
 			for {
@@ -123,40 +182,17 @@ func (w *WatcherClient) Start() {
 					return
 
 				case <-ticker.C:
-					// get current height
-					number, err := w.BlockNumber(ctx)
+					number, err := utils.GetLatestConfirmedBlockNumber(ctx, w.Client, w.confirmations)
 					if err != nil {
-						log.Error("failed to get_BlockNumber", "err", err)
+						log.Error("failed to get block number", "err", err)
 						continue
 					}
 
-					if number >= w.confirmations {
-						number = number - w.confirmations
-					} else {
-						number = 0
-					}
-
 					w.FetchContractEvent(number)
 				}
 			}
 		}(ctx)
 
-		// batch proposer loop
-		go func(ctx context.Context) {
-			ticker := time.NewTicker(3 * time.Second)
-			defer ticker.Stop()
-
-			for {
-				select {
-				case <-ctx.Done():
-					return
-
-				case <-ticker.C:
-					w.batchProposer.tryProposeBatch()
-				}
-			}
-		}(ctx)
-
 		<-w.stopCh
 		cancel()
 	}()
@@ -174,9 +210,9 @@ func (w *WatcherClient) tryFetchRunningMissingBlocks(ctx context.Context, blockH
 	// Get newest block in DB. must have blocks at that time.
 	// Don't use "block_trace" table "trace" column's BlockTrace.Number,
 	// because it might be empty if the corresponding rollup_result is finalized/finalization_skipped
-	heightInDB, err := w.orm.GetBlockTracesLatestHeight()
+	heightInDB, err := w.orm.GetL2BlockTracesLatestHeight()
 	if err != nil {
-		log.Error("failed to GetBlockTracesLatestHeight", "err", err)
+		log.Error("failed to GetL2BlockTracesLatestHeight", "err", err)
 		return
 	}
 
@@ -202,7 +238,7 @@ func (w *WatcherClient) tryFetchRunningMissingBlocks(ctx context.Context, blockH
 }
 
 func (w *WatcherClient) getAndStoreBlockTraces(ctx context.Context, from, to uint64) error {
-	var traces []*types.BlockTrace
+	var traces []*geth_types.BlockTrace
 
 	for number := from; number <= to; number++ {
 		log.Debug("retrieving block trace", "height", number)
@@ -216,7 +252,7 @@ func (w *WatcherClient) getAndStoreBlockTraces(ctx context.Context, from, to uin
 
 	}
 	if len(traces) > 0 {
-		if err := w.orm.InsertBlockTraces(traces); err != nil {
+		if err := w.orm.InsertL2BlockTraces(traces); err != nil {
 			return fmt.Errorf("failed to batch insert BlockTraces: %v", err)
 		}
 	}
@@ -248,13 +284,15 @@ func (w *WatcherClient) FetchContractEvent(blockHeight uint64) {
 			ToBlock:   big.NewInt(to),   // inclusive
 			Addresses: []common.Address{
 				w.messengerAddress,
+				w.messageQueueAddress,
 			},
 			Topics: make([][]common.Hash, 1),
 		}
-		query.Topics[0] = make([]common.Hash, 3)
-		query.Topics[0][0] = common.HexToHash(bridge_abi.SentMessageEventSignature)
-		query.Topics[0][1] = common.HexToHash(bridge_abi.RelayedMessageEventSignature)
-		query.Topics[0][2] = common.HexToHash(bridge_abi.FailedRelayedMessageEventSignature)
+		query.Topics[0] = make([]common.Hash, 4)
+		query.Topics[0][0] = bridge_abi.L2SentMessageEventSignature
+		query.Topics[0][1] = bridge_abi.L2RelayedMessageEventSignature
+		query.Topics[0][2] = bridge_abi.L2FailedRelayedMessageEventSignature
+		query.Topics[0][3] = bridge_abi.L2AppendMessageEventSignature
 
 		logs, err := w.FilterLogs(w.ctx, query)
 		if err != nil {
@@ -263,6 +301,7 @@ func (w *WatcherClient) FetchContractEvent(blockHeight uint64) {
 		}
 		if len(logs) == 0 {
 			w.processedMsgHeight = uint64(to)
+			bridgeL2MsgSyncHeightGauge.Update(to)
 			continue
 		}
 		log.Info("received new L2 messages", "fromBlock", from, "toBlock", to, "cnt", len(logs))
@@ -276,14 +315,13 @@ func (w *WatcherClient) FetchContractEvent(blockHeight uint64) {
 		// Update relayed message first to make sure we don't forget to update submited message.
 		// Since, we always start sync from the latest unprocessed message.
 		for _, msg := range relayedMessageEvents {
+			var msgStatus types.MsgStatus
 			if msg.isSuccessful {
-				// succeed
-				err = w.orm.UpdateLayer1StatusAndLayer2Hash(w.ctx, msg.msgHash.String(), orm.MsgConfirmed, msg.txHash.String())
+				msgStatus = types.MsgConfirmed
 			} else {
-				// failed
-				err = w.orm.UpdateLayer1StatusAndLayer2Hash(w.ctx, msg.msgHash.String(), orm.MsgFailed, msg.txHash.String())
+				msgStatus = types.MsgFailed
 			}
-			if err != nil {
+			if err = w.orm.UpdateLayer1StatusAndLayer2Hash(w.ctx, msg.msgHash.String(), msgStatus, msg.txHash.String()); err != nil {
 				log.Error("Failed to update layer1 status and layer2 hash", "err", err)
 				return
 			}
@@ -295,71 +333,95 @@ func (w *WatcherClient) FetchContractEvent(blockHeight uint64) {
 		}
 
 		w.processedMsgHeight = uint64(to)
+		bridgeL2MsgSyncHeightGauge.Update(to)
 	}
 }
 
-func (w *WatcherClient) parseBridgeEventLogs(logs []types.Log) ([]*orm.L2Message, []relayedMessage, error) {
+func (w *WatcherClient) parseBridgeEventLogs(logs []geth_types.Log) ([]*types.L2Message, []relayedMessage, error) {
 	// Need use contract abi to parse event Log
 	// Can only be tested after we have our contracts set up
 
-	var l2Messages []*orm.L2Message
+	var l2Messages []*types.L2Message
 	var relayedMessages []relayedMessage
+	var lastAppendMsgHash common.Hash
+	var lastAppendMsgNonce uint64
 	for _, vLog := range logs {
 		switch vLog.Topics[0] {
-		case common.HexToHash(bridge_abi.SentMessageEventSignature):
-			event := struct {
-				Target       common.Address
-				Sender       common.Address
-				Value        *big.Int // uint256
-				Fee          *big.Int // uint256
-				Deadline     *big.Int // uint256
-				Message      []byte
-				MessageNonce *big.Int // uint256
-				GasLimit     *big.Int // uint256
-			}{}
-
-			err := w.messengerABI.UnpackIntoInterface(&event, "SentMessage", vLog.Data)
+		case bridge_abi.L2SentMessageEventSignature:
+			event := bridge_abi.L2SentMessageEvent{}
+			err := utils.UnpackLog(w.messengerABI, &event, "SentMessage", vLog)
 			if err != nil {
 				log.Error("failed to unpack layer2 SentMessage event", "err", err)
 				return l2Messages, relayedMessages, err
 			}
-			// target is in topics[1]
-			event.Target = common.HexToAddress(vLog.Topics[1].String())
-			l2Messages = append(l2Messages, &orm.L2Message{
+
+			computedMsgHash := utils.ComputeMessageHash(
+				event.Sender,
+				event.Target,
+				event.Value,
+				event.MessageNonce,
+				event.Message,
+			)
+
+			// `AppendMessage` event is always emitted before `SentMessage` event
+			// So they should always match, just double check
+			if event.MessageNonce.Uint64() != lastAppendMsgNonce {
+				errMsg := fmt.Sprintf("l2 message nonces mismatch: AppendMessage.nonce=%v, SentMessage.nonce=%v, tx_hash=%v",
+					lastAppendMsgNonce, event.MessageNonce.Uint64(), vLog.TxHash.Hex())
+				return l2Messages, relayedMessages, errors.New(errMsg)
+			}
+			if computedMsgHash != lastAppendMsgHash {
+				errMsg := fmt.Sprintf("l2 message hashes mismatch: AppendMessage.msg_hash=%v, SentMessage.msg_hash=%v, tx_hash=%v",
+					lastAppendMsgHash.Hex(), computedMsgHash.Hex(), vLog.TxHash.Hex())
+				return l2Messages, relayedMessages, errors.New(errMsg)
+			}
+
+			l2Messages = append(l2Messages, &types.L2Message{
 				Nonce:      event.MessageNonce.Uint64(),
-				MsgHash:    utils.ComputeMessageHash(event.Sender, event.Target, event.Value, event.Fee, event.Deadline, event.Message, event.MessageNonce).String(),
+				MsgHash:    computedMsgHash.String(),
 				Height:     vLog.BlockNumber,
 				Sender:     event.Sender.String(),
 				Value:      event.Value.String(),
-				Fee:        event.Fee.String(),
-				GasLimit:   event.GasLimit.Uint64(),
-				Deadline:   event.Deadline.Uint64(),
 				Target:     event.Target.String(),
 				Calldata:   common.Bytes2Hex(event.Message),
 				Layer2Hash: vLog.TxHash.Hex(),
 			})
-		case common.HexToHash(bridge_abi.RelayedMessageEventSignature):
-			event := struct {
-				MsgHash common.Hash
-			}{}
-			// MsgHash is in topics[1]
-			event.MsgHash = common.HexToHash(vLog.Topics[1].String())
+		case bridge_abi.L2RelayedMessageEventSignature:
+			event := bridge_abi.L2RelayedMessageEvent{}
+			err := utils.UnpackLog(w.messengerABI, &event, "RelayedMessage", vLog)
+			if err != nil {
+				log.Warn("Failed to unpack layer2 RelayedMessage event", "err", err)
+				return l2Messages, relayedMessages, err
+			}
+
 			relayedMessages = append(relayedMessages, relayedMessage{
-				msgHash:      event.MsgHash,
+				msgHash:      event.MessageHash,
 				txHash:       vLog.TxHash,
 				isSuccessful: true,
 			})
-		case common.HexToHash(bridge_abi.FailedRelayedMessageEventSignature):
-			event := struct {
-				MsgHash common.Hash
-			}{}
-			// MsgHash is in topics[1]
-			event.MsgHash = common.HexToHash(vLog.Topics[1].String())
+		case bridge_abi.L2FailedRelayedMessageEventSignature:
+			event := bridge_abi.L2FailedRelayedMessageEvent{}
+			err := utils.UnpackLog(w.messengerABI, &event, "FailedRelayedMessage", vLog)
+			if err != nil {
+				log.Warn("Failed to unpack layer2 FailedRelayedMessage event", "err", err)
+				return l2Messages, relayedMessages, err
+			}
+
 			relayedMessages = append(relayedMessages, relayedMessage{
-				msgHash:      event.MsgHash,
+				msgHash:      event.MessageHash,
 				txHash:       vLog.TxHash,
 				isSuccessful: false,
 			})
+		case bridge_abi.L2AppendMessageEventSignature:
+			event := bridge_abi.L2AppendMessageEvent{}
+			err := utils.UnpackLog(w.messageQueueABI, &event, "AppendMessage", vLog)
+			if err != nil {
+				log.Warn("Failed to unpack layer2 AppendMessage event", "err", err)
+				return l2Messages, relayedMessages, err
+			}
+
+			lastAppendMsgHash = event.MessageHash
+			lastAppendMsgNonce = event.Index.Uint64()
 		default:
 			log.Error("Unknown event", "topic", vLog.Topics[0], "txHash", vLog.TxHash)
 		}

bridge/l2/watcher_test.go

@@ -10,17 +10,18 @@ import (
 
 	"github.com/scroll-tech/go-ethereum/accounts/abi/bind"
 	"github.com/scroll-tech/go-ethereum/common"
-	"github.com/scroll-tech/go-ethereum/core/types"
+	geth_types "github.com/scroll-tech/go-ethereum/core/types"
 	"github.com/scroll-tech/go-ethereum/ethclient"
+	"github.com/scroll-tech/go-ethereum/rpc"
 	"github.com/stretchr/testify/assert"
 
-	"scroll-tech/bridge/config"
+	"scroll-tech/common/types"
+
 	"scroll-tech/bridge/mock_bridge"
 	"scroll-tech/bridge/sender"
 
 	"scroll-tech/database"
 	"scroll-tech/database/migrate"
-	"scroll-tech/database/orm"
 )
 
 func testCreateNewWatcherAndStop(t *testing.T) {
@@ -31,12 +32,12 @@ func testCreateNewWatcherAndStop(t *testing.T) {
 	defer l2db.Close()
 
 	l2cfg := cfg.L2Config
-	rc := NewL2WatcherClient(context.Background(), l2Cli, l2cfg.Confirmations, l2cfg.BatchProposerConfig, l2cfg.L2MessengerAddress, l2db)
+	rc := NewL2WatcherClient(context.Background(), l2Cli, l2cfg.Confirmations, l2cfg.L2MessengerAddress, l2cfg.L2MessageQueueAddress, l2db)
 	rc.Start()
 	defer rc.Stop()
 
 	l1cfg := cfg.L1Config
-	l1cfg.RelayerConfig.SenderConfig.Confirmations = 0
+	l1cfg.RelayerConfig.SenderConfig.Confirmations = rpc.LatestBlockNumber
 	newSender, err := sender.NewSender(context.Background(), l1cfg.RelayerConfig.SenderConfig, l1cfg.RelayerConfig.MessageSenderPrivateKeys)
 	assert.NoError(t, err)
 
@@ -61,6 +62,11 @@ func testMonitorBridgeContract(t *testing.T) {
 	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
 	defer db.Close()
 
+	l2cfg := cfg.L2Config
+	wc := NewL2WatcherClient(context.Background(), l2Cli, l2cfg.Confirmations, l2cfg.L2MessengerAddress, l2cfg.L2MessageQueueAddress, db)
+	wc.Start()
+	defer wc.Stop()
+
 	previousHeight, err := l2Cli.BlockNumber(context.Background())
 	assert.NoError(t, err)
 
@@ -72,7 +78,7 @@ func testMonitorBridgeContract(t *testing.T) {
 	address, err := bind.WaitDeployed(context.Background(), l2Cli, tx)
 	assert.NoError(t, err)
 
-	rc := prepareRelayerClient(l2Cli, cfg.L2Config.BatchProposerConfig, db, address)
+	rc := prepareWatcherClient(l2Cli, db, address)
 	rc.Start()
 	defer rc.Stop()
 
@@ -85,7 +91,7 @@ func testMonitorBridgeContract(t *testing.T) {
 	tx, err = instance.SendMessage(auth, toAddress, fee, message, gasLimit)
 	assert.NoError(t, err)
 	receipt, err := bind.WaitMined(context.Background(), l2Cli, tx)
-	if receipt.Status != types.ReceiptStatusSuccessful || err != nil {
+	if receipt.Status != geth_types.ReceiptStatusSuccessful || err != nil {
 		t.Fatalf("Call failed")
 	}
 
@@ -95,7 +101,7 @@ func testMonitorBridgeContract(t *testing.T) {
 	tx, err = instance.SendMessage(auth, toAddress, fee, message, gasLimit)
 	assert.NoError(t, err)
 	receipt, err = bind.WaitMined(context.Background(), l2Cli, tx)
-	if receipt.Status != types.ReceiptStatusSuccessful || err != nil {
+	if receipt.Status != geth_types.ReceiptStatusSuccessful || err != nil {
 		t.Fatalf("Call failed")
 	}
 
@@ -112,7 +118,7 @@ func testMonitorBridgeContract(t *testing.T) {
 	assert.NoError(t, err)
 	t.Log("Height in DB is", height)
 	assert.Greater(t, height, int64(previousHeight))
-	msgs, err := db.GetL2Messages(map[string]interface{}{"status": orm.MsgPending})
+	msgs, err := db.GetL2Messages(map[string]interface{}{"status": types.MsgPending})
 	assert.NoError(t, err)
 	assert.Equal(t, 2, len(msgs))
 }
@@ -134,13 +140,13 @@ func testFetchMultipleSentMessageInOneBlock(t *testing.T) {
 	address, err := bind.WaitDeployed(context.Background(), l2Cli, trx)
 	assert.NoError(t, err)
 
-	rc := prepareRelayerClient(l2Cli, cfg.L2Config.BatchProposerConfig, db, address)
+	rc := prepareWatcherClient(l2Cli, db, address)
 	rc.Start()
 	defer rc.Stop()
 
 	// Call mock_bridge instance sendMessage to trigger emit events multiple times
 	numTransactions := 4
-	var tx *types.Transaction
+	var tx *geth_types.Transaction
 
 	for i := 0; i < numTransactions; i++ {
 		addr := common.HexToAddress("0x1c5a77d9fa7ef466951b2f01f724bca3a5820b63")
@@ -156,7 +162,7 @@ func testFetchMultipleSentMessageInOneBlock(t *testing.T) {
 	}
 
 	receipt, err := bind.WaitMined(context.Background(), l2Cli, tx)
-	if receipt.Status != types.ReceiptStatusSuccessful || err != nil {
+	if receipt.Status != geth_types.ReceiptStatusSuccessful || err != nil {
 		t.Fatalf("Call failed")
 	}
 
@@ -172,7 +178,7 @@ func testFetchMultipleSentMessageInOneBlock(t *testing.T) {
 	tx, err = instance.SendMessage(auth, toAddress, fee, message, gasLimit)
 	assert.NoError(t, err)
 	receipt, err = bind.WaitMined(context.Background(), l2Cli, tx)
-	if receipt.Status != types.ReceiptStatusSuccessful || err != nil {
+	if receipt.Status != geth_types.ReceiptStatusSuccessful || err != nil {
 		t.Fatalf("Call failed")
 	}
 
@@ -184,13 +190,14 @@ func testFetchMultipleSentMessageInOneBlock(t *testing.T) {
 	assert.NoError(t, err)
 	t.Log("LatestHeight is", height)
 	assert.Greater(t, height, int64(previousHeight)) // height must be greater than previousHeight because confirmations is 0
-	msgs, err := db.GetL2Messages(map[string]interface{}{"status": orm.MsgPending})
+	msgs, err := db.GetL2Messages(map[string]interface{}{"status": types.MsgPending})
 	assert.NoError(t, err)
 	assert.Equal(t, 5, len(msgs))
 }
 
-func prepareRelayerClient(l2Cli *ethclient.Client, bpCfg *config.BatchProposerConfig, db database.OrmFactory, contractAddr common.Address) *WatcherClient {
-	return NewL2WatcherClient(context.Background(), l2Cli, 0, bpCfg, contractAddr, db)
+func prepareWatcherClient(l2Cli *ethclient.Client, db database.OrmFactory, contractAddr common.Address) *WatcherClient {
+	confirmations := rpc.LatestBlockNumber
+	return NewL2WatcherClient(context.Background(), l2Cli, confirmations, contractAddr, contractAddr, db)
 }
 
 func prepareAuth(t *testing.T, l2Cli *ethclient.Client, privateKey *ecdsa.PrivateKey) *bind.TransactOpts {

bridge/mock_bridge/MockBridgeL1.sol

@@ -2,98 +2,120 @@
 pragma solidity ^0.8.0;
 
 contract MockBridgeL1 {
+  /******************************
+   * Events from L1MessageQueue *
+   ******************************/
+
+  /// @notice Emitted when a new L1 => L2 transaction is appended to the queue.
+  /// @param sender The address of account who initiates the transaction.
+  /// @param target The address of account who will recieve the transaction.
+  /// @param value The value passed with the transaction.
+  /// @param queueIndex The index of this transaction in the queue.
+  /// @param gasLimit Gas limit required to complete the message relay on L2.
+  /// @param data The calldata of the transaction.
+  event QueueTransaction(
+    address indexed sender,
+    address indexed target,
+    uint256 value,
+    uint256 queueIndex,
+    uint256 gasLimit,
+    bytes data
+  );
+
   /*********************************
    * Events from L1ScrollMessenger *
    *********************************/
 
+  /// @notice Emitted when a cross domain message is sent.
+  /// @param sender The address of the sender who initiates the message.
+  /// @param target The address of target contract to call.
+  /// @param value The amount of value passed to the target contract.
+  /// @param messageNonce The nonce of the message.
+  /// @param gasLimit The optional gas limit passed to L1 or L2.
+  /// @param message The calldata passed to the target contract.
   event SentMessage(
+    address indexed sender,
     address indexed target,
-    address sender,
     uint256 value,
-    uint256 fee,
-    uint256 deadline,
-    bytes message,
     uint256 messageNonce,
-    uint256 gasLimit
+    uint256 gasLimit,
+    bytes message
   );
 
-  event MessageDropped(bytes32 indexed msgHash);
+  /// @notice Emitted when a cross domain message is relayed successfully.
+  /// @param messageHash The hash of the message.
+  event RelayedMessage(bytes32 indexed messageHash);
 
-  event RelayedMessage(bytes32 indexed msgHash);
+  /// @dev The maximum number of transaction in on batch.
+  uint256 public immutable maxNumTxInBatch;
 
-  event FailedRelayedMessage(bytes32 indexed msgHash);
+  /// @dev The hash used for padding public inputs.
+  bytes32 public immutable paddingTxHash;
 
-  /************************
-   * Events from ZKRollup *
-   ************************/
+  /***************************
+   * Events from ScrollChain *
+   ***************************/
 
   /// @notice Emitted when a new batch is commited.
-  /// @param _batchHash The hash of the batch
-  /// @param _batchIndex The index of the batch
-  /// @param _parentHash The hash of parent batch
-  event CommitBatch(bytes32 indexed _batchId, bytes32 _batchHash, uint256 _batchIndex, bytes32 _parentHash);
+  /// @param batchHash The hash of the batch
+  event CommitBatch(bytes32 indexed batchHash);
 
   /// @notice Emitted when a batch is reverted.
-  /// @param _batchId The identification of the batch.
-  event RevertBatch(bytes32 indexed _batchId);
+  /// @param batchHash The identification of the batch.
+  event RevertBatch(bytes32 indexed batchHash);
 
   /// @notice Emitted when a batch is finalized.
-  /// @param _batchHash The hash of the batch
-  /// @param _batchIndex The index of the batch
-  /// @param _parentHash The hash of parent batch
-  event FinalizeBatch(bytes32 indexed _batchId, bytes32 _batchHash, uint256 _batchIndex, bytes32 _parentHash);
+  /// @param batchHash The hash of the batch
+  event FinalizeBatch(bytes32 indexed batchHash);
 
   /***********
    * Structs *
    ***********/
 
-  struct L2MessageProof {
-    uint256 batchIndex;
-    uint256 blockHeight;
-    bytes merkleProof;
-  }
-
-  /// @dev The transanction struct
-  struct Layer2Transaction {
-    address caller;
-    uint64 nonce;
-    address target;
-    uint64 gas;
-    uint256 gasPrice;
-    uint256 value;
-    bytes data;
-    // signature
-    uint256 r;
-    uint256 s;
-    uint64 v;
-  }
-
-  /// @dev The block header struct
-  struct Layer2BlockHeader {
+  struct BlockContext {
+    // The hash of this block.
     bytes32 blockHash;
+    // The parent hash of this block.
     bytes32 parentHash;
-    uint256 baseFee;
-    bytes32 stateRoot;
-    uint64 blockHeight;
-    uint64 gasUsed;
+    // The height of this block.
+    uint64 blockNumber;
+    // The timestamp of this block.
     uint64 timestamp;
-    bytes extraData;
-    Layer2Transaction[] txs;
+    // The base fee of this block.
+    // Currently, it is not used, because we disable EIP-1559.
+    // We keep it for future proof.
+    uint256 baseFee;
+    // The gas limit of this block.
+    uint64 gasLimit;
+    // The number of transactions in this block, both L1 & L2 txs.
+    uint16 numTransactions;
+    // The number of l1 messages in this block.
+    uint16 numL1Messages;
   }
 
-  /// @dev The batch struct, the batch hash is always the last block hash of `blocks`.
-  struct Layer2Batch {
+  struct Batch {
+    // The list of blocks in this batch
+    BlockContext[] blocks; // MAX_NUM_BLOCKS = 100, about 5 min
+    // The state root of previous batch.
+    // The first batch will use 0x0 for prevStateRoot
+    bytes32 prevStateRoot;
+    // The state root of the last block in this batch.
+    bytes32 newStateRoot;
+    // The withdraw trie root of the last block in this batch.
+    bytes32 withdrawTrieRoot;
+    // The index of the batch.
     uint64 batchIndex;
-    // The hash of the last block in the parent batch
-    bytes32 parentHash;
-    Layer2BlockHeader[] blocks;
+    // The parent batch hash.
+    bytes32 parentBatchHash;
+    // Concatenated raw data of RLP encoded L2 txs
+    bytes l2Transactions;
   }
 
-  struct Layer2BatchStored {
+  struct L2MessageProof {
+    // The hash of the batch where the message belongs to.
     bytes32 batchHash;
-    bytes32 parentHash;
-    uint64 batchIndex;
-    bool verified;
+    // Concatenation of merkle proof for withdraw merkle trie.
+    bytes merkleProof;
   }
 
   /*************
@@ -103,27 +125,39 @@ contract MockBridgeL1 {
   /// @notice Message nonce, used to avoid relay attack.
   uint256 public messageNonce;
 
-  /// @notice Mapping from batch id to batch struct.
-  mapping(bytes32 => Layer2BatchStored) public batches;
+  /***************
+   * Constructor *
+   ***************/
+
+  constructor() {
+    maxNumTxInBatch = 44;
+    paddingTxHash = 0x0000000000000000000000000000000000000000000000000000000000000000;
+  }
+
+  /***********************************
+   * Functions from L2GasPriceOracle *
+   ***********************************/
+
+  function setL2BaseFee(uint256) external {
+  }
 
   /************************************
    * Functions from L1ScrollMessenger *
    ************************************/
 
   function sendMessage(
-    address _to,
-    uint256 _fee,
-    bytes memory _message,
-    uint256 _gasLimit
+    address target,
+    uint256 value,
+    bytes calldata message,
+    uint256 gasLimit
   ) external payable {
-    // solhint-disable-next-line not-rely-on-time
-    uint256 _deadline = block.timestamp + 1 days;
-    uint256 _value;
-    unchecked {
-      _value = msg.value - _fee;
+    bytes memory _xDomainCalldata = _encodeXDomainCalldata(msg.sender, target, value, messageNonce, message);
+    {
+      address _sender = applyL1ToL2Alias(address(this));
+      emit QueueTransaction(_sender, target, 0, messageNonce, gasLimit, _xDomainCalldata);
     }
-    uint256 _nonce = messageNonce;
-    emit SentMessage(_to, msg.sender, _value, _fee, _deadline, _message, _nonce, _gasLimit);
+
+    emit SentMessage(msg.sender, target, value, messageNonce, gasLimit, message);
     messageNonce += 1;
   }
 
@@ -131,57 +165,216 @@ contract MockBridgeL1 {
     address _from,
     address _to,
     uint256 _value,
-    uint256 _fee,
-    uint256 _deadline,
     uint256 _nonce,
     bytes memory _message,
     L2MessageProof memory
   ) external {
-    bytes32 _msghash = keccak256(abi.encodePacked(_from, _to, _value, _fee, _deadline, _nonce, _message));
-    emit RelayedMessage(_msghash);
+    bytes memory _xDomainCalldata = _encodeXDomainCalldata(_from, _to, _value, _nonce, _message);
+    bytes32 _xDomainCalldataHash = keccak256(_xDomainCalldata);
+    emit RelayedMessage(_xDomainCalldataHash);
   }
 
-  /***************************
-   * Functions from ZKRollup *
-   ***************************/
+  /******************************
+   * Functions from ScrollChain *
+   ******************************/
 
-  function commitBatch(Layer2Batch memory _batch) external {
-    bytes32 _batchHash = _batch.blocks[_batch.blocks.length - 1].blockHash;
-    bytes32 _batchId = _computeBatchId(_batchHash, _batch.parentHash, _batch.batchIndex);
-
-    Layer2BatchStored storage _batchStored = batches[_batchId];
-    _batchStored.batchHash = _batchHash;
-    _batchStored.parentHash = _batch.parentHash;
-    _batchStored.batchIndex = _batch.batchIndex;
-
-    emit CommitBatch(_batchId, _batchHash, _batch.batchIndex, _batch.parentHash);
+  function commitBatch(Batch memory _batch) external {
+    _commitBatch(_batch);
   }
-  
-  function revertBatch(bytes32 _batchId) external {
-    emit RevertBatch(_batchId);
+
+  function commitBatches(Batch[] memory _batches) external {
+    for (uint256 i = 0; i < _batches.length; i++) {
+      _commitBatch(_batches[i]);
+    }
+  }
+
+  function revertBatch(bytes32 _batchHash) external {
+    emit RevertBatch(_batchHash);
   }
 
   function finalizeBatchWithProof(
-    bytes32 _batchId,
+    bytes32 _batchHash,
     uint256[] memory,
     uint256[] memory
   ) external {
-    Layer2BatchStored storage _batch = batches[_batchId];
-    uint256 _batchIndex = _batch.batchIndex;
-
-    emit FinalizeBatch(_batchId, _batch.batchHash, _batchIndex, _batch.parentHash);
+    emit FinalizeBatch(_batchHash);
   }
 
-  /// @dev Internal function to compute a unique batch id for mapping.
-  /// @param _batchHash The hash of the batch.
-  /// @param _parentHash The hash of the batch.
-  /// @param _batchIndex The index of the batch.
-  /// @return Return the computed batch id.
-  function _computeBatchId(
-    bytes32 _batchHash,
-    bytes32 _parentHash,
-    uint256 _batchIndex
-  ) internal pure returns (bytes32) {
-    return keccak256(abi.encode(_batchHash, _parentHash, _batchIndex));
+  /**********************
+   * Internal Functions *
+   **********************/
+
+  function _commitBatch(Batch memory _batch) internal {
+    bytes32 _batchHash = _computePublicInputHash(_batch);
+    emit CommitBatch(_batchHash);
   }
-}
+
+  /// @dev Internal function to generate the correct cross domain calldata for a message.
+  /// @param _sender Message sender address.
+  /// @param _target Target contract address.
+  /// @param _value The amount of ETH pass to the target.
+  /// @param _messageNonce Nonce for the provided message.
+  /// @param _message Message to send to the target.
+  /// @return ABI encoded cross domain calldata.
+  function _encodeXDomainCalldata(
+    address _sender,
+    address _target,
+    uint256 _value,
+    uint256 _messageNonce,
+    bytes memory _message
+  ) internal pure returns (bytes memory) {
+    return
+      abi.encodeWithSignature(
+        "relayMessage(address,address,uint256,uint256,bytes)",
+        _sender,
+        _target,
+        _value,
+        _messageNonce,
+        _message
+      );
+  }
+
+  function applyL1ToL2Alias(address l1Address) internal pure returns (address l2Address) {
+    uint160 offset = uint160(0x1111000000000000000000000000000000001111);
+    unchecked {
+      l2Address = address(uint160(l1Address) + offset);
+    }
+  }
+
+  /// @dev Internal function to compute the public input hash.
+  /// @param batch The batch to compute.
+  function _computePublicInputHash(Batch memory batch)
+    internal
+    view
+    returns (
+      bytes32
+    )
+  {
+    uint256 publicInputsPtr;
+    // 1. append prevStateRoot, newStateRoot and withdrawTrieRoot to public inputs
+    {
+      bytes32 prevStateRoot = batch.prevStateRoot;
+      bytes32 newStateRoot = batch.newStateRoot;
+      bytes32 withdrawTrieRoot = batch.withdrawTrieRoot;
+      // number of bytes in public inputs: 32 * 3 + 124 * blocks + 32 * MAX_NUM_TXS
+      uint256 publicInputsSize = 32 * 3 + batch.blocks.length * 124 + 32 * maxNumTxInBatch;
+      assembly {
+        publicInputsPtr := mload(0x40)
+        mstore(0x40, add(publicInputsPtr, publicInputsSize))
+        mstore(publicInputsPtr, prevStateRoot)
+        publicInputsPtr := add(publicInputsPtr, 0x20)
+        mstore(publicInputsPtr, newStateRoot)
+        publicInputsPtr := add(publicInputsPtr, 0x20)
+        mstore(publicInputsPtr, withdrawTrieRoot)
+        publicInputsPtr := add(publicInputsPtr, 0x20)
+      }
+    }
+
+    uint64 numTransactionsInBatch;
+    BlockContext memory _block;
+    // 2. append block information to public inputs.
+    for (uint256 i = 0; i < batch.blocks.length; i++) {
+      // validate blocks, we won't check first block against previous batch.
+      {
+        BlockContext memory _currentBlock = batch.blocks[i];
+        if (i > 0) {
+          require(_block.blockHash == _currentBlock.parentHash, "Parent hash mismatch");
+          require(_block.blockNumber + 1 == _currentBlock.blockNumber, "Block number mismatch");
+        }
+        _block = _currentBlock;
+      }
+
+      // append blockHash and parentHash to public inputs
+      {
+        bytes32 blockHash = _block.blockHash;
+        bytes32 parentHash = _block.parentHash;
+        assembly {
+          mstore(publicInputsPtr, blockHash)
+          publicInputsPtr := add(publicInputsPtr, 0x20)
+          mstore(publicInputsPtr, parentHash)
+          publicInputsPtr := add(publicInputsPtr, 0x20)
+        }
+      }
+      // append blockNumber and blockTimestamp to public inputs
+      {
+        uint256 blockNumber = _block.blockNumber;
+        uint256 blockTimestamp = _block.timestamp;
+        assembly {
+          mstore(publicInputsPtr, shl(192, blockNumber))
+          publicInputsPtr := add(publicInputsPtr, 0x8)
+          mstore(publicInputsPtr, shl(192, blockTimestamp))
+          publicInputsPtr := add(publicInputsPtr, 0x8)
+        }
+      }
+      // append baseFee to public inputs
+      {
+        uint256 baseFee = _block.baseFee;
+        assembly {
+          mstore(publicInputsPtr, baseFee)
+          publicInputsPtr := add(publicInputsPtr, 0x20)
+        }
+      }
+      uint64 numTransactionsInBlock = _block.numTransactions;
+      // gasLimit, numTransactions and numL1Messages to public inputs
+      {
+        uint256 gasLimit = _block.gasLimit;
+        uint256 numL1MessagesInBlock = _block.numL1Messages;
+        assembly {
+          mstore(publicInputsPtr, shl(192, gasLimit))
+          publicInputsPtr := add(publicInputsPtr, 0x8)
+          mstore(publicInputsPtr, shl(240, numTransactionsInBlock))
+          publicInputsPtr := add(publicInputsPtr, 0x2)
+          mstore(publicInputsPtr, shl(240, numL1MessagesInBlock))
+          publicInputsPtr := add(publicInputsPtr, 0x2)
+        }
+      }
+      numTransactionsInBatch += numTransactionsInBlock;
+    }
+    require(numTransactionsInBatch <= maxNumTxInBatch, "Too many transactions in batch");
+
+    // 3. append transaction hash to public inputs.
+    uint256 _l2TxnPtr;
+    {
+      bytes memory l2Transactions = batch.l2Transactions;
+      assembly {
+        _l2TxnPtr := add(l2Transactions, 0x20)
+      }
+    }
+    for (uint256 i = 0; i < batch.blocks.length; i++) {
+      uint256 numL1MessagesInBlock = batch.blocks[i].numL1Messages;
+      require(numL1MessagesInBlock == 0);
+      uint256 numTransactionsInBlock = batch.blocks[i].numTransactions;
+      for (uint256 j = numL1MessagesInBlock; j < numTransactionsInBlock; ++j) {
+        bytes32 hash;
+        assembly {
+          let txPayloadLength := shr(224, mload(_l2TxnPtr))
+          _l2TxnPtr := add(_l2TxnPtr, 4)
+          _l2TxnPtr := add(_l2TxnPtr, txPayloadLength)
+          hash := keccak256(sub(_l2TxnPtr, txPayloadLength), txPayloadLength)
+          mstore(publicInputsPtr, hash)
+          publicInputsPtr := add(publicInputsPtr, 0x20)
+        }
+      }
+    }
+
+    // 4. append padding transaction to public inputs.
+    bytes32 txHashPadding = paddingTxHash;
+    for (uint256 i = numTransactionsInBatch; i < maxNumTxInBatch; i++) {
+      assembly {
+        mstore(publicInputsPtr, txHashPadding)
+        publicInputsPtr := add(publicInputsPtr, 0x20)
+      }
+    }
+
+    // 5. compute public input hash
+    bytes32 publicInputHash;
+    {
+      uint256 publicInputsSize = 32 * 3 + batch.blocks.length * 124 + 32 * maxNumTxInBatch;
+      assembly {
+        publicInputHash := keccak256(sub(publicInputsPtr, publicInputsSize), publicInputsSize)
+      }
+    }
+
+    return publicInputHash;
+  }
+}

bridge/mock_bridge/MockBridgeL2.sol

@@ -2,26 +2,56 @@
 pragma solidity ^0.8.0;
 
 contract MockBridgeL2 {
+  /******************************
+   * Events from L2MessageQueue *
+   ******************************/
+
+  /// @notice Emitted when a new message is added to the merkle tree.
+  /// @param index The index of the corresponding message.
+  /// @param messageHash The hash of the corresponding message.
+  event AppendMessage(uint256 index, bytes32 messageHash);
+
+  /********************************
+   * Events from L1BlockContainer *
+   ********************************/
+
+  /// @notice Emitted when a block is imported.
+  /// @param blockHash The hash of the imported block.
+  /// @param blockHeight The height of the imported block.
+  /// @param blockTimestamp The timestamp of the imported block.
+  /// @param baseFee The base fee of the imported block.
+  /// @param stateRoot The state root of the imported block.
+  event ImportBlock(
+    bytes32 indexed blockHash,
+    uint256 blockHeight,
+    uint256 blockTimestamp,
+    uint256 baseFee,
+    bytes32 stateRoot
+  );
+
   /*********************************
    * Events from L2ScrollMessenger *
    *********************************/
 
+  /// @notice Emitted when a cross domain message is sent.
+  /// @param sender The address of the sender who initiates the message.
+  /// @param target The address of target contract to call.
+  /// @param value The amount of value passed to the target contract.
+  /// @param messageNonce The nonce of the message.
+  /// @param gasLimit The optional gas limit passed to L1 or L2.
+  /// @param message The calldata passed to the target contract.
   event SentMessage(
+    address indexed sender,
     address indexed target,
-    address sender,
     uint256 value,
-    uint256 fee,
-    uint256 deadline,
-    bytes message,
     uint256 messageNonce,
-    uint256 gasLimit
+    uint256 gasLimit,
+    bytes message
   );
 
-  event MessageDropped(bytes32 indexed msgHash);
-  
-  event RelayedMessage(bytes32 indexed msgHash);
-  
-  event FailedRelayedMessage(bytes32 indexed msgHash);
+  /// @notice Emitted when a cross domain message is relayed successfully.
+  /// @param messageHash The hash of the message.
+  event RelayedMessage(bytes32 indexed messageHash);
 
   /*************
    * Variables *
@@ -30,38 +60,70 @@ contract MockBridgeL2 {
   /// @notice Message nonce, used to avoid relay attack.
   uint256 public messageNonce;
 
+  /***********************************
+   * Functions from L1GasPriceOracle *
+   ***********************************/
+
+  function setL1BaseFee(uint256) external {
+  }
+
   /************************************
    * Functions from L2ScrollMessenger *
    ************************************/
 
   function sendMessage(
     address _to,
-    uint256 _fee,
+    uint256 _value,
     bytes memory _message,
     uint256 _gasLimit
   ) external payable {
-    // solhint-disable-next-line not-rely-on-time
-    uint256 _deadline = block.timestamp + 1 days;
-    uint256 _nonce = messageNonce;
-    uint256 _value;
-    unchecked {
-      _value = msg.value - _fee;
-    }
-    bytes32 _msghash = keccak256(abi.encodePacked(msg.sender, _to, _value, _fee, _deadline, _nonce, _message));
-    emit SentMessage(_to, msg.sender, _value, _fee, _deadline, _message, _nonce, _gasLimit);
-    messageNonce = _nonce + 1;
+    bytes memory _xDomainCalldata = _encodeXDomainCalldata(msg.sender, _to, _value, messageNonce, _message);
+    bytes32 _xDomainCalldataHash = keccak256(_xDomainCalldata);
+
+    emit AppendMessage(messageNonce, _xDomainCalldataHash);
+    emit SentMessage(msg.sender, _to, _value, messageNonce, _gasLimit, _message);
+
+    messageNonce += 1;
   }
 
-  function relayMessageWithProof(
+  function relayMessage(
     address _from,
     address _to,
     uint256 _value,
-    uint256 _fee,
-    uint256 _deadline,
     uint256 _nonce,
-    bytes memory _message
+    bytes calldata _message
   ) external {
-    bytes32 _msghash = keccak256(abi.encodePacked(_from, _to, _value, _fee, _deadline, _nonce, _message));
-    emit RelayedMessage(_msghash);
+    bytes memory _xDomainCalldata = _encodeXDomainCalldata(_from, _to, _value, _nonce, _message);
+    bytes32 _xDomainCalldataHash = keccak256(_xDomainCalldata);
+    emit RelayedMessage(_xDomainCalldataHash);
+  }
+
+  /**********************
+   * Internal Functions *
+   **********************/
+
+  /// @dev Internal function to generate the correct cross domain calldata for a message.
+  /// @param _sender Message sender address.
+  /// @param _target Target contract address.
+  /// @param _value The amount of ETH pass to the target.
+  /// @param _messageNonce Nonce for the provided message.
+  /// @param _message Message to send to the target.
+  /// @return ABI encoded cross domain calldata.
+  function _encodeXDomainCalldata(
+    address _sender,
+    address _target,
+    uint256 _value,
+    uint256 _messageNonce,
+    bytes memory _message
+  ) internal pure returns (bytes memory) {
+    return
+      abi.encodeWithSignature(
+        "relayMessage(address,address,uint256,uint256,bytes)",
+        _sender,
+        _target,
+        _value,
+        _messageNonce,
+        _message
+      );
   }
 }

bridge/scripts/build_abi.sh

@@ -1,5 +1,8 @@
 #!/bin/bash
 
+# generates go bindings from contracts, to paste into abi/bridge_abi.go
+# compile artifacts in /contracts folder with `forge build`` first 
+
 # Only run if it is ran from repository root.
 if [[ ! -d "cmd" ]]
 then
@@ -14,16 +17,20 @@ else
   mkdir -p contracts
 fi
 
-abi_name=("IL1GatewayRouter" "IL2GatewayRouter" "IL1ScrollMessenger" "IL2ScrollMessenger" "ZKRollup")
-pkg_name=("l1_gateway" "l2_gateway" "l1_messenger" "l2_messenger" "rollup")
-gen_name=("L1GatewayRouter" "L2GatewayRouter" "L1ScrollMessenger" "L2ScrollMessenger" "ZKRollup")
+abi_name=("IL1GatewayRouter" "IL2GatewayRouter" "IL1ScrollMessenger" "IL2ScrollMessenger" "IScrollChain" "L1MessageQueue")
+pkg_name=("l1_gateway" "l2_gateway" "l1_messenger" "l2_messenger" "scrollchain" "l1_message_queue")
+gen_name=("L1GatewayRouter" "L2GatewayRouter" "L1ScrollMessenger" "L2ScrollMessenger" "IScrollChain" "L1MessageQueue")
 
 for i in "${!abi_name[@]}"; do
-  abi="bridge/abi/${abi_name[$i]}.json"
-  pkg="${pkg_name[$i]}"
+  mkdir -p tmp
+  abi="tmp/${abi_name[$i]}.json"
+  cat ../contracts/artifacts/src/${abi_name[$i]}.sol/${abi_name[$i]}.json | jq '.abi' > $abi
+  pkg="${pkg_name[$i]}_abi"
   out="contracts/${pkg}/${gen_name[$i]}.go"
   echo "generating ${out} from ${abi}"
   mkdir -p contracts/$pkg
   abigen --abi=$abi --pkg=$pkg --out=$out
   awk '{sub("github.com/ethereum","github.com/scroll-tech")}1' $out > temp && mv temp $out
-done
+done
+
+rm -rf tmp

bridge/sender/sender.go

@@ -20,6 +20,8 @@ import (
 	"github.com/scroll-tech/go-ethereum/ethclient"
 	"github.com/scroll-tech/go-ethereum/log"
 
+	"scroll-tech/bridge/utils"
+
 	"scroll-tech/bridge/config"
 )
 
@@ -39,16 +41,6 @@ var (
 	ErrNoAvailableAccount = errors.New("sender has no available account to send transaction")
 )
 
-// DefaultSenderConfig The default config
-var DefaultSenderConfig = config.SenderConfig{
-	Endpoint:            "",
-	EscalateBlocks:      3,
-	EscalateMultipleNum: 11,
-	EscalateMultipleDen: 10,
-	MaxGasPrice:         1000_000_000_000, // this is 1000 gwei
-	TxType:              AccessListTxType,
-}
-
 // Confirmation struct used to indicate transaction confirmation details
 type Confirmation struct {
 	ID           string
@@ -95,9 +87,6 @@ type Sender struct {
 // NewSender returns a new instance of transaction sender
 // txConfirmationCh is used to notify confirmed transaction
 func NewSender(ctx context.Context, config *config.SenderConfig, privs []*ecdsa.PrivateKey) (*Sender, error) {
-	if config == nil {
-		config = &DefaultSenderConfig
-	}
 	client, err := ethclient.Dial(config.Endpoint)
 	if err != nil {
 		return nil, err
@@ -120,6 +109,15 @@ func NewSender(ctx context.Context, config *config.SenderConfig, privs []*ecdsa.
 		return nil, err
 	}
 
+	var baseFeePerGas uint64
+	if config.TxType == DynamicFeeTxType {
+		if header.BaseFee != nil {
+			baseFeePerGas = header.BaseFee.Uint64()
+		} else {
+			return nil, errors.New("DynamicFeeTxType not supported, header.BaseFee nil")
+		}
+	}
+
 	sender := &Sender{
 		ctx:           ctx,
 		config:        config,
@@ -128,7 +126,7 @@ func NewSender(ctx context.Context, config *config.SenderConfig, privs []*ecdsa.
 		auths:         auths,
 		confirmCh:     make(chan *Confirmation, 128),
 		blockNumber:   header.Number.Uint64(),
-		baseFeePerGas: header.BaseFee.Uint64(),
+		baseFeePerGas: baseFeePerGas,
 		pendingTxs:    sync.Map{},
 		stopCh:        make(chan struct{}),
 	}
@@ -352,11 +350,20 @@ func (s *Sender) resubmitTransaction(feeData *FeeData, auth *bind.TransactOpts,
 	return s.createAndSendTx(auth, feeData, tx.To(), tx.Value(), tx.Data(), &nonce)
 }
 
-// CheckPendingTransaction Check pending transaction given number of blocks to wait before confirmation.
-func (s *Sender) CheckPendingTransaction(header *types.Header) {
+// checkPendingTransaction checks the confirmation status of pending transactions against the latest confirmed block number.
+// If a transaction hasn't been confirmed after a certain number of blocks, it will be resubmitted with an increased gas price.
+func (s *Sender) checkPendingTransaction(header *types.Header, confirmed uint64) {
 	number := header.Number.Uint64()
 	atomic.StoreUint64(&s.blockNumber, number)
-	atomic.StoreUint64(&s.baseFeePerGas, header.BaseFee.Uint64())
+
+	if s.config.TxType == DynamicFeeTxType {
+		if header.BaseFee != nil {
+			atomic.StoreUint64(&s.baseFeePerGas, header.BaseFee.Uint64())
+		} else {
+			log.Error("DynamicFeeTxType not supported, header.BaseFee nil")
+		}
+	}
+
 	s.pendingTxs.Range(func(key, value interface{}) bool {
 		// ignore empty id, since we use empty id to occupy pending task
 		if value == nil || reflect.ValueOf(value).IsNil() {
@@ -366,7 +373,7 @@ func (s *Sender) CheckPendingTransaction(header *types.Header) {
 		pending := value.(*PendingTransaction)
 		receipt, err := s.client.TransactionReceipt(s.ctx, pending.tx.Hash())
 		if (err == nil) && (receipt != nil) {
-			if number >= receipt.BlockNumber.Uint64()+s.config.Confirmations {
+			if receipt.BlockNumber.Uint64() <= confirmed {
 				s.pendingTxs.Delete(key)
 				// send confirm message
 				s.confirmCh <- &Confirmation{
@@ -440,7 +447,14 @@ func (s *Sender) loop(ctx context.Context) {
 				log.Error("failed to get latest head", "err", err)
 				continue
 			}
-			s.CheckPendingTransaction(header)
+
+			confirmed, err := utils.GetLatestConfirmedBlockNumber(s.ctx, s.client, s.config.Confirmations)
+			if err != nil {
+				log.Error("failed to get latest confirmed block number", "err", err)
+				continue
+			}
+
+			s.checkPendingTransaction(header, confirmed)
 		case <-checkBalanceTicker.C:
 			// Check and set balance.
 			_ = s.auths.checkAndSetBalances(ctx)

bridge/sender/sender_test.go

@@ -14,6 +14,7 @@ import (
 	cmap "github.com/orcaman/concurrent-map"
 	"github.com/scroll-tech/go-ethereum/common"
 	"github.com/scroll-tech/go-ethereum/crypto"
+	"github.com/scroll-tech/go-ethereum/rpc"
 	"github.com/stretchr/testify/assert"
 
 	"scroll-tech/common/docker"
@@ -68,7 +69,7 @@ func testBatchSender(t *testing.T, batchSize int) {
 	}
 
 	senderCfg := cfg.L1Config.RelayerConfig.SenderConfig
-	senderCfg.Confirmations = 0
+	senderCfg.Confirmations = rpc.LatestBlockNumber
 	newSender, err := sender.NewSender(context.Background(), senderCfg, privateKeys)
 	if err != nil {
 		t.Fatal(err)

bridge/tests/bridge_test.go

@@ -4,18 +4,20 @@ import (
 	"context"
 	"crypto/ecdsa"
 	"math/big"
-	"scroll-tech/common/docker"
 	"testing"
 
-	"scroll-tech/bridge/config"
-	"scroll-tech/bridge/mock_bridge"
-
 	"github.com/scroll-tech/go-ethereum/accounts/abi/bind"
 	"github.com/scroll-tech/go-ethereum/common"
 	"github.com/scroll-tech/go-ethereum/core/types"
 	"github.com/scroll-tech/go-ethereum/crypto"
 	"github.com/scroll-tech/go-ethereum/ethclient"
+	"github.com/scroll-tech/go-ethereum/rpc"
 	"github.com/stretchr/testify/assert"
+
+	"scroll-tech/bridge/config"
+	"scroll-tech/bridge/mock_bridge"
+
+	"scroll-tech/common/docker"
 )
 
 var (
@@ -43,8 +45,8 @@ var (
 	l1MessengerAddress  common.Address
 
 	// l1 rollup contract
-	l1RollupInstance *mock_bridge.MockBridgeL1
-	l1RollupAddress  common.Address
+	scrollChainInstance *mock_bridge.MockBridgeL1
+	scrollChainAddress  common.Address
 
 	// l2 messenger contract
 	l2MessengerInstance *mock_bridge.MockBridgeL2
@@ -59,16 +61,20 @@ func setupEnv(t *testing.T) {
 	assert.NoError(t, err)
 	rollupPrivateKey, err := crypto.ToECDSA(common.FromHex("1212121212121212121212121212121212121212121212121212121212121214"))
 	assert.NoError(t, err)
+	gasOraclePrivateKey, err := crypto.ToECDSA(common.FromHex("1212121212121212121212121212121212121212121212121212121212121215"))
+	assert.NoError(t, err)
 
 	// Load config.
 	cfg, err = config.NewConfig("../config.json")
 	assert.NoError(t, err)
-	cfg.L1Config.Confirmations = 0
+	cfg.L1Config.Confirmations = rpc.LatestBlockNumber
 	cfg.L1Config.RelayerConfig.MessageSenderPrivateKeys = []*ecdsa.PrivateKey{messagePrivateKey}
 	cfg.L1Config.RelayerConfig.RollupSenderPrivateKeys = []*ecdsa.PrivateKey{rollupPrivateKey}
-	cfg.L2Config.Confirmations = 0
+	cfg.L1Config.RelayerConfig.GasOracleSenderPrivateKeys = []*ecdsa.PrivateKey{gasOraclePrivateKey}
+	cfg.L2Config.Confirmations = rpc.LatestBlockNumber
 	cfg.L2Config.RelayerConfig.MessageSenderPrivateKeys = []*ecdsa.PrivateKey{messagePrivateKey}
 	cfg.L2Config.RelayerConfig.RollupSenderPrivateKeys = []*ecdsa.PrivateKey{rollupPrivateKey}
+	cfg.L2Config.RelayerConfig.GasOracleSenderPrivateKeys = []*ecdsa.PrivateKey{gasOraclePrivateKey}
 
 	// Create l1geth container.
 	l1gethImg = docker.NewTestL1Docker(t)
@@ -97,8 +103,10 @@ func setupEnv(t *testing.T) {
 	// send some balance to message and rollup sender
 	transferEther(t, l1Auth, l1Client, messagePrivateKey)
 	transferEther(t, l1Auth, l1Client, rollupPrivateKey)
+	transferEther(t, l1Auth, l1Client, gasOraclePrivateKey)
 	transferEther(t, l2Auth, l2Client, messagePrivateKey)
 	transferEther(t, l2Auth, l2Client, rollupPrivateKey)
+	transferEther(t, l2Auth, l2Client, gasOraclePrivateKey)
 }
 
 func transferEther(t *testing.T, auth *bind.TransactOpts, client *ethclient.Client, privateKey *ecdsa.PrivateKey) {
@@ -158,10 +166,10 @@ func prepareContracts(t *testing.T) {
 	l1MessengerAddress, err = bind.WaitDeployed(context.Background(), l1Client, tx)
 	assert.NoError(t, err)
 
-	// L1 rollup contract
-	_, tx, l1RollupInstance, err = mock_bridge.DeployMockBridgeL1(l1Auth, l1Client)
+	// L1 ScrolChain contract
+	_, tx, scrollChainInstance, err = mock_bridge.DeployMockBridgeL1(l1Auth, l1Client)
 	assert.NoError(t, err)
-	l1RollupAddress, err = bind.WaitDeployed(context.Background(), l1Client, tx)
+	scrollChainAddress, err = bind.WaitDeployed(context.Background(), l1Client, tx)
 	assert.NoError(t, err)
 
 	// L2 messenger contract
@@ -171,12 +179,16 @@ func prepareContracts(t *testing.T) {
 	assert.NoError(t, err)
 
 	cfg.L1Config.L1MessengerAddress = l1MessengerAddress
-	cfg.L1Config.RollupContractAddress = l1RollupAddress
+	cfg.L1Config.L1MessageQueueAddress = l1MessengerAddress
+	cfg.L1Config.ScrollChainContractAddress = scrollChainAddress
 	cfg.L1Config.RelayerConfig.MessengerContractAddress = l2MessengerAddress
+	cfg.L1Config.RelayerConfig.GasPriceOracleContractAddress = l1MessengerAddress
 
 	cfg.L2Config.L2MessengerAddress = l2MessengerAddress
+	cfg.L2Config.L2MessageQueueAddress = l2MessengerAddress
 	cfg.L2Config.RelayerConfig.MessengerContractAddress = l1MessengerAddress
-	cfg.L2Config.RelayerConfig.RollupContractAddress = l1RollupAddress
+	cfg.L2Config.RelayerConfig.RollupContractAddress = scrollChainAddress
+	cfg.L2Config.RelayerConfig.GasPriceOracleContractAddress = l2MessengerAddress
 }
 
 func prepareAuth(t *testing.T, client *ethclient.Client, privateKey *ecdsa.PrivateKey) *bind.TransactOpts {
@@ -195,8 +207,15 @@ func TestFunction(t *testing.T) {
 	// l1 rollup and watch rollup events
 	t.Run("TestCommitBatchAndFinalizeBatch", testCommitBatchAndFinalizeBatch)
 
+	// l1 message
+	t.Run("TestRelayL1MessageSucceed", testRelayL1MessageSucceed)
+
 	// l2 message
-	t.Run("testRelayL2MessageSucceed", testRelayL2MessageSucceed)
+	t.Run("TestRelayL2MessageSucceed", testRelayL2MessageSucceed)
+
+	// l1/l2 gas oracle
+	t.Run("TestImportL1GasPrice", testImportL1GasPrice)
+	t.Run("TestImportL2GasPrice", testImportL2GasPrice)
 
 	t.Cleanup(func() {
 		free(t)

bridge/tests/gas_oracle_test.go

@@ -0,0 +1,129 @@
+package tests
+
+import (
+	"context"
+	"math/big"
+	"testing"
+
+	"github.com/scroll-tech/go-ethereum/common"
+	geth_types "github.com/scroll-tech/go-ethereum/core/types"
+	"github.com/stretchr/testify/assert"
+
+	"scroll-tech/common/types"
+
+	"scroll-tech/bridge/l1"
+	"scroll-tech/bridge/l2"
+
+	"scroll-tech/database"
+	"scroll-tech/database/migrate"
+)
+
+func testImportL1GasPrice(t *testing.T) {
+	// Create db handler and reset db.
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	defer db.Close()
+
+	prepareContracts(t)
+
+	l1Cfg := cfg.L1Config
+
+	// Create L1Relayer
+	l1Relayer, err := l1.NewLayer1Relayer(context.Background(), db, l1Cfg.RelayerConfig)
+	assert.NoError(t, err)
+	defer l1Relayer.Stop()
+
+	// Create L1Watcher
+	startHeight, err := l1Client.BlockNumber(context.Background())
+	assert.NoError(t, err)
+	l1Watcher := l1.NewWatcher(context.Background(), l1Client, startHeight-1, 0, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db)
+
+	// fetch new blocks
+	number, err := l1Client.BlockNumber(context.Background())
+	assert.Greater(t, number, startHeight-1)
+	assert.NoError(t, err)
+	err = l1Watcher.FetchBlockHeader(number)
+	assert.NoError(t, err)
+
+	// check db status
+	latestBlockHeight, err := db.GetLatestL1BlockHeight()
+	assert.NoError(t, err)
+	assert.Equal(t, number, latestBlockHeight)
+	blocks, err := db.GetL1BlockInfos(map[string]interface{}{
+		"number": latestBlockHeight,
+	})
+	assert.NoError(t, err)
+	assert.Equal(t, len(blocks), 1)
+	assert.Equal(t, blocks[0].GasOracleStatus, types.GasOraclePending)
+	assert.Equal(t, blocks[0].OracleTxHash.Valid, false)
+
+	// relay gas price
+	l1Relayer.ProcessGasPriceOracle()
+	blocks, err = db.GetL1BlockInfos(map[string]interface{}{
+		"number": latestBlockHeight,
+	})
+	assert.NoError(t, err)
+	assert.Equal(t, len(blocks), 1)
+	assert.Equal(t, blocks[0].GasOracleStatus, types.GasOracleImporting)
+	assert.Equal(t, blocks[0].OracleTxHash.Valid, true)
+}
+
+func testImportL2GasPrice(t *testing.T) {
+	// Create db handler and reset db.
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	defer db.Close()
+
+	prepareContracts(t)
+
+	l2Cfg := cfg.L2Config
+
+	// Create L2Relayer
+	l2Relayer, err := l2.NewLayer2Relayer(context.Background(), l2Client, db, l2Cfg.RelayerConfig)
+	assert.NoError(t, err)
+	defer l2Relayer.Stop()
+
+	// add fake blocks
+	traces := []*geth_types.BlockTrace{
+		{
+			Header: &geth_types.Header{
+				Number:     big.NewInt(1),
+				ParentHash: common.Hash{},
+				Difficulty: big.NewInt(0),
+				BaseFee:    big.NewInt(0),
+			},
+			StorageTrace: &geth_types.StorageTrace{},
+		},
+	}
+	err = db.InsertL2BlockTraces(traces)
+	assert.NoError(t, err)
+
+	parentBatch := &types.BlockBatch{
+		Index: 0,
+		Hash:  "0x0000000000000000000000000000000000000000",
+	}
+	batchData := types.NewBatchData(parentBatch, []*geth_types.BlockTrace{
+		traces[0],
+	}, cfg.L2Config.BatchProposerConfig.PublicInputConfig)
+
+	// add fake batch
+	dbTx, err := db.Beginx()
+	assert.NoError(t, err)
+	assert.NoError(t, db.NewBatchInDBTx(dbTx, batchData))
+	assert.NoError(t, dbTx.Commit())
+
+	// check db status
+	batch, err := db.GetLatestBatch()
+	assert.NoError(t, err)
+	assert.Equal(t, batch.OracleStatus, types.GasOraclePending)
+	assert.Equal(t, batch.OracleTxHash.Valid, false)
+
+	// relay gas price
+	l2Relayer.ProcessGasPriceOracle()
+	batch, err = db.GetLatestBatch()
+	assert.NoError(t, err)
+	assert.Equal(t, batch.OracleStatus, types.GasOracleImporting)
+	assert.Equal(t, batch.OracleTxHash.Valid, true)
+}

bridge/tests/l1_message_relay_test.go

@@ -0,0 +1,86 @@
+package tests
+
+import (
+	"context"
+	"math/big"
+	"testing"
+
+	"github.com/scroll-tech/go-ethereum/accounts/abi/bind"
+	"github.com/scroll-tech/go-ethereum/common"
+	geth_types "github.com/scroll-tech/go-ethereum/core/types"
+	"github.com/scroll-tech/go-ethereum/rpc"
+	"github.com/stretchr/testify/assert"
+
+	"scroll-tech/common/types"
+
+	"scroll-tech/bridge/l1"
+	"scroll-tech/bridge/l2"
+
+	"scroll-tech/database"
+	"scroll-tech/database/migrate"
+)
+
+func testRelayL1MessageSucceed(t *testing.T) {
+	// Create db handler and reset db.
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	defer db.Close()
+
+	prepareContracts(t)
+
+	l1Cfg := cfg.L1Config
+	l2Cfg := cfg.L2Config
+
+	// Create L1Relayer
+	l1Relayer, err := l1.NewLayer1Relayer(context.Background(), db, l1Cfg.RelayerConfig)
+	assert.NoError(t, err)
+	defer l1Relayer.Stop()
+
+	// Create L1Watcher
+	confirmations := rpc.LatestBlockNumber
+	l1Watcher := l1.NewWatcher(context.Background(), l1Client, 0, confirmations, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db)
+
+	// Create L2Watcher
+	l2Watcher := l2.NewL2WatcherClient(context.Background(), l2Client, confirmations, l2Cfg.L2MessengerAddress, l2Cfg.L2MessageQueueAddress, db)
+
+	// send message through l1 messenger contract
+	nonce, err := l1MessengerInstance.MessageNonce(&bind.CallOpts{})
+	assert.NoError(t, err)
+	sendTx, err := l1MessengerInstance.SendMessage(l1Auth, l2Auth.From, big.NewInt(0), common.Hex2Bytes("00112233"), big.NewInt(0))
+	assert.NoError(t, err)
+	sendReceipt, err := bind.WaitMined(context.Background(), l1Client, sendTx)
+	assert.NoError(t, err)
+	if sendReceipt.Status != geth_types.ReceiptStatusSuccessful || err != nil {
+		t.Fatalf("Call failed")
+	}
+
+	// l1 watch process events
+	l1Watcher.FetchContractEvent(sendReceipt.BlockNumber.Uint64())
+
+	// check db status
+	msg, err := db.GetL1MessageByQueueIndex(nonce.Uint64())
+	assert.NoError(t, err)
+	assert.Equal(t, msg.Status, types.MsgPending)
+	assert.Equal(t, msg.Target, l2Auth.From.String())
+
+	// process l1 messages
+	l1Relayer.ProcessSavedEvents()
+	msg, err = db.GetL1MessageByQueueIndex(nonce.Uint64())
+	assert.NoError(t, err)
+	assert.Equal(t, msg.Status, types.MsgSubmitted)
+	relayTxHash, err := db.GetRelayL1MessageTxHash(nonce.Uint64())
+	assert.NoError(t, err)
+	assert.Equal(t, true, relayTxHash.Valid)
+	relayTx, _, err := l2Client.TransactionByHash(context.Background(), common.HexToHash(relayTxHash.String))
+	assert.NoError(t, err)
+	relayTxReceipt, err := bind.WaitMined(context.Background(), l2Client, relayTx)
+	assert.NoError(t, err)
+	assert.Equal(t, len(relayTxReceipt.Logs), 1)
+
+	// fetch message relayed events
+	l2Watcher.FetchContractEvent(relayTxReceipt.BlockNumber.Uint64())
+	msg, err = db.GetL1MessageByQueueIndex(nonce.Uint64())
+	assert.NoError(t, err)
+	assert.Equal(t, msg.Status, types.MsgConfirmed)
+}

bridge/tests/l2_message_relay_test.go

@@ -3,19 +3,21 @@ package tests
 import (
 	"context"
 	"math/big"
-	"scroll-tech/database"
-	"scroll-tech/database/migrate"
-	"scroll-tech/database/orm"
-	"sync"
 	"testing"
 
+	"github.com/scroll-tech/go-ethereum/accounts/abi/bind"
+	"github.com/scroll-tech/go-ethereum/common"
+	geth_types "github.com/scroll-tech/go-ethereum/core/types"
+	"github.com/scroll-tech/go-ethereum/rpc"
+	"github.com/stretchr/testify/assert"
+
+	"scroll-tech/common/types"
+
 	"scroll-tech/bridge/l1"
 	"scroll-tech/bridge/l2"
 
-	"github.com/scroll-tech/go-ethereum/accounts/abi/bind"
-	"github.com/scroll-tech/go-ethereum/common"
-	"github.com/scroll-tech/go-ethereum/core/types"
-	"github.com/stretchr/testify/assert"
+	"scroll-tech/database"
+	"scroll-tech/database/migrate"
 )
 
 func testRelayL2MessageSucceed(t *testing.T) {
@@ -25,23 +27,21 @@ func testRelayL2MessageSucceed(t *testing.T) {
 	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
 	defer db.Close()
 
-	var wg sync.WaitGroup
-	wg.Add(3)
-
 	prepareContracts(t)
 
-	// Create L2Relayer
 	l2Cfg := cfg.L2Config
-	l2Relayer, err := l2.NewLayer2Relayer(context.Background(), db, l2Cfg.RelayerConfig)
-	assert.NoError(t, err)
-	defer l2Relayer.Stop()
 
 	// Create L2Watcher
-	l2Watcher := l2.NewL2WatcherClient(context.Background(), l2Client, 0, l2Cfg.BatchProposerConfig, l2Cfg.L2MessengerAddress, db)
+	confirmations := rpc.LatestBlockNumber
+	l2Watcher := l2.NewL2WatcherClient(context.Background(), l2Client, confirmations, l2Cfg.L2MessengerAddress, l2Cfg.L2MessageQueueAddress, db)
+
+	// Create L2Relayer
+	l2Relayer, err := l2.NewLayer2Relayer(context.Background(), l2Client, db, l2Cfg.RelayerConfig)
+	assert.NoError(t, err)
 
 	// Create L1Watcher
 	l1Cfg := cfg.L1Config
-	l1Watcher := l1.NewWatcher(context.Background(), l1Client, 0, 0, l1Cfg.L1MessengerAddress, l1Cfg.RollupContractAddress, db)
+	l1Watcher := l1.NewWatcher(context.Background(), l1Client, 0, confirmations, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db)
 
 	// send message through l2 messenger contract
 	nonce, err := l2MessengerInstance.MessageNonce(&bind.CallOpts{})
@@ -50,7 +50,7 @@ func testRelayL2MessageSucceed(t *testing.T) {
 	assert.NoError(t, err)
 	sendReceipt, err := bind.WaitMined(context.Background(), l2Client, sendTx)
 	assert.NoError(t, err)
-	if sendReceipt.Status != types.ReceiptStatusSuccessful || err != nil {
+	if sendReceipt.Status != geth_types.ReceiptStatusSuccessful || err != nil {
 		t.Fatalf("Call failed")
 	}
 
@@ -60,62 +60,60 @@ func testRelayL2MessageSucceed(t *testing.T) {
 	// check db status
 	msg, err := db.GetL2MessageByNonce(nonce.Uint64())
 	assert.NoError(t, err)
-	assert.Equal(t, msg.Status, orm.MsgPending)
+	assert.Equal(t, msg.Status, types.MsgPending)
 	assert.Equal(t, msg.Sender, l2Auth.From.String())
 	assert.Equal(t, msg.Target, l1Auth.From.String())
 
 	// add fake blocks
-	traces := []*types.BlockTrace{
+	traces := []*geth_types.BlockTrace{
 		{
-			Header: &types.Header{
+			Header: &geth_types.Header{
 				Number:     sendReceipt.BlockNumber,
 				ParentHash: common.Hash{},
 				Difficulty: big.NewInt(0),
 				BaseFee:    big.NewInt(0),
 			},
-			StorageTrace: &types.StorageTrace{},
+			StorageTrace: &geth_types.StorageTrace{},
 		},
 	}
-	err = db.InsertBlockTraces(traces)
+	err = db.InsertL2BlockTraces(traces)
 	assert.NoError(t, err)
 
+	parentBatch := &types.BlockBatch{
+		Index: 0,
+		Hash:  "0x0000000000000000000000000000000000000000",
+	}
+	batchData := types.NewBatchData(parentBatch, []*geth_types.BlockTrace{
+		traces[0],
+	}, cfg.L2Config.BatchProposerConfig.PublicInputConfig)
+	batchHash := batchData.Hash().String()
+
 	// add fake batch
 	dbTx, err := db.Beginx()
 	assert.NoError(t, err)
-	batchID, err := db.NewBatchInDBTx(dbTx,
-		&orm.BlockInfo{
-			Number:     traces[0].Header.Number.Uint64(),
-			Hash:       traces[0].Header.Hash().String(),
-			ParentHash: traces[0].Header.ParentHash.String(),
-		},
-		&orm.BlockInfo{
-			Number:     traces[0].Header.Number.Uint64(),
-			Hash:       traces[0].Header.Hash().String(),
-			ParentHash: traces[0].Header.ParentHash.String(),
-		},
-		traces[0].Header.ParentHash.String(), 1, 194676)
-	assert.NoError(t, err)
-	err = db.SetBatchIDForBlocksInDBTx(dbTx, []uint64{
-		traces[0].Header.Number.Uint64(),
-		traces[0].Header.Number.Uint64()}, batchID)
-	assert.NoError(t, err)
-	err = dbTx.Commit()
+	assert.NoError(t, db.NewBatchInDBTx(dbTx, batchData))
+	var blockIDs = make([]uint64, len(batchData.Batch.Blocks))
+	for i, block := range batchData.Batch.Blocks {
+		blockIDs[i] = block.BlockNumber
+	}
+	err = db.SetBatchHashForL2BlocksInDBTx(dbTx, blockIDs, batchHash)
 	assert.NoError(t, err)
+	assert.NoError(t, dbTx.Commit())
 
 	// add dummy proof
 	tProof := []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31}
 	tInstanceCommitments := []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31}
-	err = db.UpdateProofByID(context.Background(), batchID, tProof, tInstanceCommitments, 100)
+	err = db.UpdateProofByHash(context.Background(), batchHash, tProof, tInstanceCommitments, 100)
 	assert.NoError(t, err)
-	err = db.UpdateProvingStatus(batchID, orm.ProvingTaskVerified)
+	err = db.UpdateProvingStatus(batchHash, types.ProvingTaskVerified)
 	assert.NoError(t, err)
 
 	// process pending batch and check status
-	l2Relayer.ProcessPendingBatches(&wg)
-	status, err := db.GetRollupStatus(batchID)
+	l2Relayer.SendCommitTx([]*types.BatchData{batchData})
+	status, err := db.GetRollupStatus(batchHash)
 	assert.NoError(t, err)
-	assert.Equal(t, orm.RollupCommitting, status)
-	commitTxHash, err := db.GetCommitTxHash(batchID)
+	assert.Equal(t, types.RollupCommitting, status)
+	commitTxHash, err := db.GetCommitTxHash(batchHash)
 	assert.NoError(t, err)
 	assert.Equal(t, true, commitTxHash.Valid)
 	commitTx, _, err := l1Client.TransactionByHash(context.Background(), common.HexToHash(commitTxHash.String))
@@ -127,16 +125,16 @@ func testRelayL2MessageSucceed(t *testing.T) {
 	// fetch CommitBatch rollup events
 	err = l1Watcher.FetchContractEvent(commitTxReceipt.BlockNumber.Uint64())
 	assert.NoError(t, err)
-	status, err = db.GetRollupStatus(batchID)
+	status, err = db.GetRollupStatus(batchHash)
 	assert.NoError(t, err)
-	assert.Equal(t, orm.RollupCommitted, status)
+	assert.Equal(t, types.RollupCommitted, status)
 
 	// process committed batch and check status
-	l2Relayer.ProcessCommittedBatches(&wg)
-	status, err = db.GetRollupStatus(batchID)
+	l2Relayer.ProcessCommittedBatches()
+	status, err = db.GetRollupStatus(batchHash)
 	assert.NoError(t, err)
-	assert.Equal(t, orm.RollupFinalizing, status)
-	finalizeTxHash, err := db.GetFinalizeTxHash(batchID)
+	assert.Equal(t, types.RollupFinalizing, status)
+	finalizeTxHash, err := db.GetFinalizeTxHash(batchHash)
 	assert.NoError(t, err)
 	assert.Equal(t, true, finalizeTxHash.Valid)
 	finalizeTx, _, err := l1Client.TransactionByHash(context.Background(), common.HexToHash(finalizeTxHash.String))
@@ -148,15 +146,15 @@ func testRelayL2MessageSucceed(t *testing.T) {
 	// fetch FinalizeBatch events
 	err = l1Watcher.FetchContractEvent(finalizeTxReceipt.BlockNumber.Uint64())
 	assert.NoError(t, err)
-	status, err = db.GetRollupStatus(batchID)
+	status, err = db.GetRollupStatus(batchHash)
 	assert.NoError(t, err)
-	assert.Equal(t, orm.RollupFinalized, status)
+	assert.Equal(t, types.RollupFinalized, status)
 
 	// process l2 messages
-	l2Relayer.ProcessSavedEvents(&wg)
+	l2Relayer.ProcessSavedEvents()
 	msg, err = db.GetL2MessageByNonce(nonce.Uint64())
 	assert.NoError(t, err)
-	assert.Equal(t, msg.Status, orm.MsgSubmitted)
+	assert.Equal(t, msg.Status, types.MsgSubmitted)
 	relayTxHash, err := db.GetRelayL2MessageTxHash(nonce.Uint64())
 	assert.NoError(t, err)
 	assert.Equal(t, true, relayTxHash.Valid)
@@ -171,5 +169,5 @@ func testRelayL2MessageSucceed(t *testing.T) {
 	assert.NoError(t, err)
 	msg, err = db.GetL2MessageByNonce(nonce.Uint64())
 	assert.NoError(t, err)
-	assert.Equal(t, msg.Status, orm.MsgConfirmed)
+	assert.Equal(t, msg.Status, types.MsgConfirmed)
 }

bridge/tests/rollup_test.go

@@ -3,19 +3,20 @@ package tests
 import (
 	"context"
 	"math/big"
-	"scroll-tech/database"
-	"scroll-tech/database/migrate"
-	"scroll-tech/database/orm"
-	"sync"
 	"testing"
 
+	"github.com/scroll-tech/go-ethereum/accounts/abi/bind"
+	"github.com/scroll-tech/go-ethereum/common"
+	geth_types "github.com/scroll-tech/go-ethereum/core/types"
+	"github.com/stretchr/testify/assert"
+
+	"scroll-tech/common/types"
+
 	"scroll-tech/bridge/l1"
 	"scroll-tech/bridge/l2"
 
-	"github.com/scroll-tech/go-ethereum/accounts/abi/bind"
-	"github.com/scroll-tech/go-ethereum/common"
-	"github.com/scroll-tech/go-ethereum/core/types"
-	"github.com/stretchr/testify/assert"
+	"scroll-tech/database"
+	"scroll-tech/database/migrate"
 )
 
 func testCommitBatchAndFinalizeBatch(t *testing.T) {
@@ -29,66 +30,63 @@ func testCommitBatchAndFinalizeBatch(t *testing.T) {
 
 	// Create L2Relayer
 	l2Cfg := cfg.L2Config
-	l2Relayer, err := l2.NewLayer2Relayer(context.Background(), db, l2Cfg.RelayerConfig)
+	l2Relayer, err := l2.NewLayer2Relayer(context.Background(), l2Client, db, l2Cfg.RelayerConfig)
 	assert.NoError(t, err)
 	defer l2Relayer.Stop()
 
 	// Create L1Watcher
 	l1Cfg := cfg.L1Config
-	l1Watcher := l1.NewWatcher(context.Background(), l1Client, 0, 0, l1Cfg.L1MessengerAddress, l1Cfg.RollupContractAddress, db)
+	l1Watcher := l1.NewWatcher(context.Background(), l1Client, 0, l1Cfg.Confirmations, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db)
 
 	// add some blocks to db
-	var traces []*types.BlockTrace
+	var traces []*geth_types.BlockTrace
 	var parentHash common.Hash
 	for i := 1; i <= 10; i++ {
-		header := types.Header{
+		header := geth_types.Header{
 			Number:     big.NewInt(int64(i)),
 			ParentHash: parentHash,
 			Difficulty: big.NewInt(0),
 			BaseFee:    big.NewInt(0),
 		}
-		traces = append(traces, &types.BlockTrace{
+		traces = append(traces, &geth_types.BlockTrace{
 			Header:       &header,
-			StorageTrace: &types.StorageTrace{},
+			StorageTrace: &geth_types.StorageTrace{},
 		})
 		parentHash = header.Hash()
 	}
-	err = db.InsertBlockTraces(traces)
+	err = db.InsertL2BlockTraces(traces)
 	assert.NoError(t, err)
 
+	parentBatch := &types.BlockBatch{
+		Index: 0,
+		Hash:  "0x0000000000000000000000000000000000000000",
+	}
+	batchData := types.NewBatchData(parentBatch, []*geth_types.BlockTrace{
+		traces[0],
+		traces[1],
+	}, cfg.L2Config.BatchProposerConfig.PublicInputConfig)
+
+	batchHash := batchData.Hash().String()
+
 	// add one batch to db
 	dbTx, err := db.Beginx()
 	assert.NoError(t, err)
-	batchID, err := db.NewBatchInDBTx(dbTx,
-		&orm.BlockInfo{
-			Number:     traces[0].Header.Number.Uint64(),
-			Hash:       traces[0].Header.Hash().String(),
-			ParentHash: traces[0].Header.ParentHash.String(),
-		},
-		&orm.BlockInfo{
-			Number:     traces[1].Header.Number.Uint64(),
-			Hash:       traces[1].Header.Hash().String(),
-			ParentHash: traces[1].Header.ParentHash.String(),
-		},
-		traces[0].Header.ParentHash.String(), 1, 194676) // parentHash & totalTxNum & totalL2Gas don't really matter here
-	assert.NoError(t, err)
-	err = db.SetBatchIDForBlocksInDBTx(dbTx, []uint64{
-		traces[0].Header.Number.Uint64(),
-		traces[1].Header.Number.Uint64()}, batchID)
-	assert.NoError(t, err)
-	err = dbTx.Commit()
+	assert.NoError(t, db.NewBatchInDBTx(dbTx, batchData))
+	var blockIDs = make([]uint64, len(batchData.Batch.Blocks))
+	for i, block := range batchData.Batch.Blocks {
+		blockIDs[i] = block.BlockNumber
+	}
+	err = db.SetBatchHashForL2BlocksInDBTx(dbTx, blockIDs, batchHash)
 	assert.NoError(t, err)
+	assert.NoError(t, dbTx.Commit())
 
-	var wg = sync.WaitGroup{}
-	wg.Add(1)
 	// process pending batch and check status
-	l2Relayer.ProcessPendingBatches(&wg)
-	wg.Wait()
+	l2Relayer.SendCommitTx([]*types.BatchData{batchData})
 
-	status, err := db.GetRollupStatus(batchID)
+	status, err := db.GetRollupStatus(batchHash)
 	assert.NoError(t, err)
-	assert.Equal(t, orm.RollupCommitting, status)
-	commitTxHash, err := db.GetCommitTxHash(batchID)
+	assert.Equal(t, types.RollupCommitting, status)
+	commitTxHash, err := db.GetCommitTxHash(batchHash)
 	assert.NoError(t, err)
 	assert.Equal(t, true, commitTxHash.Valid)
 	commitTx, _, err := l1Client.TransactionByHash(context.Background(), common.HexToHash(commitTxHash.String))
@@ -100,27 +98,25 @@ func testCommitBatchAndFinalizeBatch(t *testing.T) {
 	// fetch rollup events
 	err = l1Watcher.FetchContractEvent(commitTxReceipt.BlockNumber.Uint64())
 	assert.NoError(t, err)
-	status, err = db.GetRollupStatus(batchID)
+	status, err = db.GetRollupStatus(batchHash)
 	assert.NoError(t, err)
-	assert.Equal(t, orm.RollupCommitted, status)
+	assert.Equal(t, types.RollupCommitted, status)
 
 	// add dummy proof
 	tProof := []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31}
 	tInstanceCommitments := []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31}
-	err = db.UpdateProofByID(context.Background(), batchID, tProof, tInstanceCommitments, 100)
+	err = db.UpdateProofByHash(context.Background(), batchHash, tProof, tInstanceCommitments, 100)
 	assert.NoError(t, err)
-	err = db.UpdateProvingStatus(batchID, orm.ProvingTaskVerified)
+	err = db.UpdateProvingStatus(batchHash, types.ProvingTaskVerified)
 	assert.NoError(t, err)
 
-	wg.Add(1)
 	// process committed batch and check status
-	l2Relayer.ProcessCommittedBatches(&wg)
-	wg.Wait()
+	l2Relayer.ProcessCommittedBatches()
 
-	status, err = db.GetRollupStatus(batchID)
+	status, err = db.GetRollupStatus(batchHash)
 	assert.NoError(t, err)
-	assert.Equal(t, orm.RollupFinalizing, status)
-	finalizeTxHash, err := db.GetFinalizeTxHash(batchID)
+	assert.Equal(t, types.RollupFinalizing, status)
+	finalizeTxHash, err := db.GetFinalizeTxHash(batchHash)
 	assert.NoError(t, err)
 	assert.Equal(t, true, finalizeTxHash.Valid)
 	finalizeTx, _, err := l1Client.TransactionByHash(context.Background(), common.HexToHash(finalizeTxHash.String))
@@ -132,7 +128,7 @@ func testCommitBatchAndFinalizeBatch(t *testing.T) {
 	// fetch rollup events
 	err = l1Watcher.FetchContractEvent(finalizeTxReceipt.BlockNumber.Uint64())
 	assert.NoError(t, err)
-	status, err = db.GetRollupStatus(batchID)
+	status, err = db.GetRollupStatus(batchHash)
 	assert.NoError(t, err)
-	assert.Equal(t, orm.RollupFinalized, status)
+	assert.Equal(t, types.RollupFinalized, status)
 }

bridge/utils/confirmation.go

@@ -0,0 +1,56 @@
+package utils
+
+import (
+	"context"
+	"fmt"
+	"math/big"
+
+	"github.com/scroll-tech/go-ethereum/core/types"
+	"github.com/scroll-tech/go-ethereum/rpc"
+)
+
+type ethClient interface {
+	BlockNumber(ctx context.Context) (uint64, error)
+	HeaderByNumber(ctx context.Context, number *big.Int) (*types.Header, error)
+}
+
+// GetLatestConfirmedBlockNumber get confirmed block number by rpc.BlockNumber type.
+func GetLatestConfirmedBlockNumber(ctx context.Context, client ethClient, confirm rpc.BlockNumber) (uint64, error) {
+	switch true {
+	case confirm == rpc.SafeBlockNumber || confirm == rpc.FinalizedBlockNumber:
+		var tag *big.Int
+		if confirm == rpc.FinalizedBlockNumber {
+			tag = big.NewInt(int64(rpc.FinalizedBlockNumber))
+		} else {
+			tag = big.NewInt(int64(rpc.SafeBlockNumber))
+		}
+
+		header, err := client.HeaderByNumber(ctx, tag)
+		if err != nil {
+			return 0, err
+		}
+		if !header.Number.IsInt64() {
+			return 0, fmt.Errorf("received invalid block confirm: %v", header.Number)
+		}
+		return header.Number.Uint64(), nil
+	case confirm == rpc.LatestBlockNumber:
+		number, err := client.BlockNumber(ctx)
+		if err != nil {
+			return 0, err
+		}
+		return number, nil
+	case confirm.Int64() >= 0: // If it's positive integer, consider it as a certain confirm value.
+		number, err := client.BlockNumber(ctx)
+		if err != nil {
+			return 0, err
+		}
+		cfmNum := uint64(confirm.Int64())
+
+		if number >= cfmNum {
+			return number - cfmNum, nil
+		}
+		return 0, nil
+	default:
+		return 0, fmt.Errorf("unknown confirmation type: %v", confirm)
+	}
+}

bridge/utils/confirmation_test.go

@@ -0,0 +1,107 @@
+package utils_test
+
+import (
+	"context"
+	"encoding/json"
+	"math/big"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+
+	"github.com/scroll-tech/go-ethereum/common/math"
+	"github.com/scroll-tech/go-ethereum/core/types"
+	"github.com/scroll-tech/go-ethereum/rpc"
+
+	"scroll-tech/bridge/utils"
+)
+
+var (
+	tests = []struct {
+		input    string
+		mustFail bool
+		expected rpc.BlockNumber
+	}{
+		{`"0x"`, true, rpc.BlockNumber(0)},
+		{`"0x0"`, false, rpc.BlockNumber(0)},
+		{`"0X1"`, false, rpc.BlockNumber(1)},
+		{`"0x00"`, true, rpc.BlockNumber(0)},
+		{`"0x01"`, true, rpc.BlockNumber(0)},
+		{`"0x1"`, false, rpc.BlockNumber(1)},
+		{`"0x12"`, false, rpc.BlockNumber(18)},
+		{`"0x7fffffffffffffff"`, false, rpc.BlockNumber(math.MaxInt64)},
+		{`"0x8000000000000000"`, true, rpc.BlockNumber(0)},
+		{"0", true, rpc.BlockNumber(0)},
+		{`"ff"`, true, rpc.BlockNumber(0)},
+		{`"safe"`, false, rpc.SafeBlockNumber},
+		{`"finalized"`, false, rpc.FinalizedBlockNumber},
+		{`"pending"`, false, rpc.PendingBlockNumber},
+		{`"latest"`, false, rpc.LatestBlockNumber},
+		{`"earliest"`, false, rpc.EarliestBlockNumber},
+		{`someString`, true, rpc.BlockNumber(0)},
+		{`""`, true, rpc.BlockNumber(0)},
+		{``, true, rpc.BlockNumber(0)},
+	}
+)
+
+func TestUnmarshalJSON(t *testing.T) {
+	for i, test := range tests {
+		var num rpc.BlockNumber
+		err := json.Unmarshal([]byte(test.input), &num)
+		if test.mustFail && err == nil {
+			t.Errorf("Test %d should fail", i)
+			continue
+		}
+		if !test.mustFail && err != nil {
+			t.Errorf("Test %d should pass but got err: %v", i, err)
+			continue
+		}
+		if num != test.expected {
+			t.Errorf("Test %d got unexpected value, want %d, got %d", i, test.expected, num)
+		}
+	}
+}
+
+func TestMarshalJSON(t *testing.T) {
+	for i, test := range tests {
+		var num rpc.BlockNumber
+		want, err := json.Marshal(test.expected)
+		assert.Nil(t, err)
+		if !test.mustFail {
+			err = json.Unmarshal([]byte(test.input), &num)
+			assert.Nil(t, err)
+			got, err := json.Marshal(&num)
+			assert.Nil(t, err)
+			if string(want) != string(got) {
+				t.Errorf("Test %d got unexpected value, want %d, got %d", i, test.expected, num)
+
+			}
+		}
+	}
+}
+
+type MockEthClient struct {
+	val uint64
+}
+
+func (e MockEthClient) BlockNumber(ctx context.Context) (uint64, error) {
+	return e.val, nil
+}
+
+func (e MockEthClient) HeaderByNumber(ctx context.Context, number *big.Int) (*types.Header, error) {
+	return &types.Header{Number: new(big.Int).SetUint64(e.val)}, nil
+}
+
+func TestGetLatestConfirmedBlockNumber(t *testing.T) {
+	ctx := context.Background()
+	client := MockEthClient{}
+
+	client.val = 5
+	confirmed, err := utils.GetLatestConfirmedBlockNumber(ctx, &client, 6)
+	assert.Nil(t, err)
+	assert.Equal(t, uint64(0), confirmed)
+
+	client.val = 7
+	confirmed, err = utils.GetLatestConfirmedBlockNumber(ctx, &client, 6)
+	assert.Nil(t, err)
+	assert.Equal(t, uint64(1), confirmed)
+}

bridge/utils/utils.go

@@ -1,21 +1,20 @@
 package utils
 
 import (
-	"bytes"
+	"fmt"
 	"math/big"
 
-	"github.com/iden3/go-iden3-crypto/keccak256"
+	"github.com/scroll-tech/go-ethereum/accounts/abi"
 	"github.com/scroll-tech/go-ethereum/common"
-	"github.com/scroll-tech/go-ethereum/common/math"
+	"github.com/scroll-tech/go-ethereum/core/types"
+	"github.com/scroll-tech/go-ethereum/crypto"
+
+	bridgeabi "scroll-tech/bridge/abi"
 )
 
 // Keccak2 compute the keccack256 of two concatenations of bytes32
 func Keccak2(a common.Hash, b common.Hash) common.Hash {
-	return common.BytesToHash(keccak256.Hash(append(a.Bytes()[:], b.Bytes()[:]...)))
-}
-
-func encodePacked(input ...[]byte) []byte {
-	return bytes.Join(input, nil)
+	return common.BytesToHash(crypto.Keccak256(append(a.Bytes()[:], b.Bytes()[:]...)))
 }
 
 // ComputeMessageHash compute the message hash
@@ -23,21 +22,11 @@ func ComputeMessageHash(
 	sender common.Address,
 	target common.Address,
 	value *big.Int,
-	fee *big.Int,
-	deadline *big.Int,
-	message []byte,
 	messageNonce *big.Int,
+	message []byte,
 ) common.Hash {
-	packed := encodePacked(
-		sender.Bytes(),
-		target.Bytes(),
-		math.U256Bytes(value),
-		math.U256Bytes(fee),
-		math.U256Bytes(deadline),
-		math.U256Bytes(messageNonce),
-		message,
-	)
-	return common.BytesToHash(keccak256.Hash(packed))
+	data, _ := bridgeabi.L2ScrollMessengerABI.Pack("relayMessage", sender, target, value, messageNonce, message)
+	return common.BytesToHash(crypto.Keccak256(data))
 }
 
 // BufferToUint256Be convert bytes array to uint256 array assuming big-endian
@@ -67,3 +56,43 @@ func BufferToUint256Le(buffer []byte) []*big.Int {
 	}
 	return buffer256
 }
+
+// UnpackLog unpacks a retrieved log into the provided output structure.
+// @todo: add unit test.
+func UnpackLog(c *abi.ABI, out interface{}, event string, log types.Log) error {
+	if log.Topics[0] != c.Events[event].ID {
+		return fmt.Errorf("event signature mismatch")
+	}
+	if len(log.Data) > 0 {
+		if err := c.UnpackIntoInterface(out, event, log.Data); err != nil {
+			return err
+		}
+	}
+	var indexed abi.Arguments
+	for _, arg := range c.Events[event].Inputs {
+		if arg.Indexed {
+			indexed = append(indexed, arg)
+		}
+	}
+	return abi.ParseTopics(out, indexed, log.Topics[1:])
+}
+
+// UnpackLogIntoMap unpacks a retrieved log into the provided map.
+// @todo: add unit test.
+func UnpackLogIntoMap(c *abi.ABI, out map[string]interface{}, event string, log types.Log) error {
+	if log.Topics[0] != c.Events[event].ID {
+		return fmt.Errorf("event signature mismatch")
+	}
+	if len(log.Data) > 0 {
+		if err := c.UnpackIntoMap(out, event, log.Data); err != nil {
+			return err
+		}
+	}
+	var indexed abi.Arguments
+	for _, arg := range c.Events[event].Inputs {
+		if arg.Indexed {
+			indexed = append(indexed, arg)
+		}
+	}
+	return abi.ParseTopicsIntoMap(out, indexed, log.Topics[1:])
+}

bridge/utils/utils_test.go

@@ -29,13 +29,11 @@ func TestKeccak2(t *testing.T) {
 
 func TestComputeMessageHash(t *testing.T) {
 	hash := utils.ComputeMessageHash(
-		common.HexToAddress("0xd7227113b92e537aeda220d5a2f201b836e5879d"),
-		common.HexToAddress("0x47c02b023b6787ef4e503df42bbb1a94f451a1c0"),
-		big.NewInt(5000000000000000),
+		common.HexToAddress("0x1C5A77d9FA7eF466951B2F01F724BCa3A5820b63"),
+		common.HexToAddress("0x4592D8f8D7B001e72Cb26A73e4Fa1806a51aC79d"),
 		big.NewInt(0),
-		big.NewInt(1674204924),
-		common.Hex2Bytes("8eaac8a30000000000000000000000007138b17fc82d7e954b3bd2f98d8166d03e5e569b0000000000000000000000007138b17fc82d7e954b3bd2f98d8166d03e5e569b0000000000000000000000000000000000000000000000000011c37937e0800000000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000000000"),
-		big.NewInt(30706),
+		big.NewInt(1),
+		[]byte("testbridgecontract"),
 	)
-	assert.Equal(t, hash.String(), "0x920e59f62ca89a0f481d44961c55d299dd20c575693692d61fdf3ca579d8edf3")
+	assert.Equal(t, "0xda253c04595a49017bb54b1b46088c69752b5ad2f0c47971ac76b8b25abec202", hash.String())
 }

build/dockerfiles/coordinator.Dockerfile

@@ -1,5 +1,5 @@
 # Build libzkp dependency
-FROM scrolltech/go-rust-builder:go-1.18-rust-nightly-2022-08-23 as chef
+FROM scrolltech/go-rust-builder:go-1.18-rust-nightly-2022-12-10 as chef
 WORKDIR app
 
 FROM chef as planner
@@ -13,10 +13,11 @@ RUN cargo chef cook --release --recipe-path recipe.json
 
 COPY ./common/libzkp/impl .
 RUN cargo build --release
+RUN find ./ | grep libzktrie.so | xargs -i cp {} /app/target/release/
 
 
 # Download Go dependencies
-FROM scrolltech/go-rust-builder:go-1.18-rust-nightly-2022-08-23 as base
+FROM scrolltech/go-rust-builder:go-1.18-rust-nightly-2022-12-10 as base
 WORKDIR /src
 COPY go.work* ./
 COPY ./bridge/go.* ./bridge/
@@ -33,11 +34,16 @@ FROM base as builder
 COPY . .
 RUN cp -r ./common/libzkp/interface ./coordinator/verifier/lib
 COPY --from=zkp-builder /app/target/release/libzkp.a ./coordinator/verifier/lib/
-RUN cd ./coordinator && go build -v -p 4 -o /bin/coordinator ./cmd
+COPY --from=zkp-builder /app/target/release/libzktrie.so ./coordinator/verifier/lib/
+RUN cd ./coordinator && go build -v -p 4 -o /bin/coordinator ./cmd && mv verifier/lib /bin/
 
 # Pull coordinator into a second stage deploy alpine container
 FROM ubuntu:20.04
-
+ENV LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/src/coordinator/verifier/lib
+# ENV CHAIN_ID=534353
+RUN mkdir -p /src/coordinator/verifier/lib
+COPY --from=builder /bin/lib /src/coordinator/verifier/lib
 COPY --from=builder /bin/coordinator /bin/
 
+
 ENTRYPOINT ["/bin/coordinator"]

build/dockerfiles/intermediate/Makefile

@@ -1,6 +1,6 @@
 GO_VERSION := 1.18
 PYTHON_VERSION := 3.10
-RUST_VERSION := nightly-2022-08-23
+RUST_VERSION := nightly-2022-12-10
 
 .PHONY: all go-alpine-builder rust-builder rust-alpine-builder go-rust-alpine-builder go-rust-builder py-runner
 

build/dockerfiles/intermediate/go-alpine-builder.Dockerfile

@@ -4,4 +4,4 @@ FROM golang:1.18-alpine
 
 # RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
 
-RUN apk add --no-cache gcc musl-dev linux-headers git ca-certificates
+RUN apk add --no-cache gcc musl-dev linux-headers git ca-certificates openssl-dev

build/dockerfiles/intermediate/go-rust-alpine-builder.Dockerfile

@@ -1,8 +1,8 @@
 FROM golang:1.18-alpine
 ARG CARGO_CHEF_TAG=0.1.41
-ARG DEFAULT_RUST_TOOLCHAIN=nightly-2022-08-23
+ARG DEFAULT_RUST_TOOLCHAIN=nightly-2022-12-10
 
-RUN apk add --no-cache gcc musl-dev linux-headers git ca-certificates
+RUN apk add --no-cache gcc musl-dev linux-headers git ca-certificates openssl-dev
 
 # RUN apk add --no-cache libc6-compat
 # RUN apk add --no-cache gcompat

build/dockerfiles/intermediate/go-rust-builder.Dockerfile

@@ -14,7 +14,7 @@ ENV PATH="/root/.cargo/bin:${PATH}"
 ENV CARGO_HOME=/root/.cargo
 
 # Add Toolchain
-RUN rustup toolchain install nightly-2022-08-23
+RUN rustup toolchain install nightly-2022-12-10
 
 # TODO: make this ARG
 ENV CARGO_CHEF_TAG=0.1.41

build/dockerfiles/intermediate/rust-alpine-builder.Dockerfile

@@ -1,10 +1,11 @@
 ARG ALPINE_VERSION=3.15
 FROM alpine:${ALPINE_VERSION}
 ARG CARGO_CHEF_TAG=0.1.41
-ARG DEFAULT_RUST_TOOLCHAIN=nightly-2022-08-23
+ARG DEFAULT_RUST_TOOLCHAIN=nightly-2022-12-10
 
 RUN apk add --no-cache \
         ca-certificates \
+        openssl-dev \
         gcc \
         git \
         musl-dev

build/dockerfiles/intermediate/rust-builder.Dockerfile

@@ -13,4 +13,4 @@ RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
 ENV PATH="/root/.cargo/bin:${PATH}"
 
 # Add Toolchain
-RUN rustup toolchain install nightly-2022-08-23
+RUN rustup toolchain install nightly-2022-12-10

build/push-docker-tag.Jenkinsfile

@@ -41,13 +41,18 @@ pipeline {
                                 if (TAGNAME == ""){
                                     return;
                                 }
-                                sh "docker login --username=${dockerUser} --password=${dockerPassword}"
-                                sh "make -C bridge docker"
-                                sh "make -C coordinator docker"
-                                sh "docker tag scrolltech/bridge:latest scrolltech/bridge:${TAGNAME}"
-                                sh "docker tag scrolltech/coordinator:latest scrolltech/coordinator:${TAGNAME}"
-                                sh "docker push scrolltech/bridge:${TAGNAME}"
-                                sh "docker push scrolltech/coordinator:${TAGNAME}"
+                                sh'''
+                                docker login --username=${dockerUser} --password=${dockerPassword}"
+                                docker manifest inspect scrolltech/bridge:${TAGNAME} > /dev/null"
+                                echo $?
+                                '''
+                                // sh "docker login --username=${dockerUser} --password=${dockerPassword}"
+                                // sh "make -C bridge docker"
+                                // sh "make -C coordinator docker"
+                                // sh "docker tag scrolltech/bridge:latest scrolltech/bridge:${TAGNAME}"
+                                // sh "docker tag scrolltech/coordinator:latest scrolltech/coordinator:${TAGNAME}"
+                                // sh "docker push scrolltech/bridge:${TAGNAME}"
+                                // sh "docker push scrolltech/coordinator:${TAGNAME}"
                             }                              
                     }
                }

common/docker/l2geth/Dockerfile

@@ -1,4 +1,4 @@
-FROM scrolltech/l2geth:prealpha-v4.2
+FROM scrolltech/l2geth:prealpha-v5.1
 
 RUN mkdir -p /l2geth/keystore
 

common/go.mod

@@ -6,19 +6,20 @@ require (
 	github.com/docker/docker v20.10.21+incompatible
 	github.com/jmoiron/sqlx v1.3.5
 	github.com/lib/pq v1.10.6
-	github.com/mattn/go-colorable v0.1.8
-	github.com/mattn/go-isatty v0.0.14
+	github.com/mattn/go-colorable v0.1.13
+	github.com/mattn/go-isatty v0.0.16
 	github.com/orcaman/concurrent-map v1.0.0
-	github.com/scroll-tech/go-ethereum v1.10.14-0.20230112091133-2891916a0f81
+	github.com/scroll-tech/go-ethereum v1.10.14-0.20230220082843-ec9254b0b1c6
 	github.com/stretchr/testify v1.8.0
-	github.com/urfave/cli/v2 v2.10.2
+	github.com/urfave/cli/v2 v2.17.2-0.20221006022127-8f469abc00aa
+	gotest.tools v2.2.0+incompatible
 )
 
 require (
 	github.com/Microsoft/go-winio v0.6.0 // indirect
 	github.com/VictoriaMetrics/fastcache v1.6.0 // indirect
 	github.com/btcsuite/btcd v0.20.1-beta // indirect
-	github.com/cespare/xxhash/v2 v2.1.2 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/deckarep/golang-set v1.8.0 // indirect
@@ -27,14 +28,15 @@ require (
 	github.com/docker/go-connections v0.4.0 // indirect
 	github.com/docker/go-units v0.5.0 // indirect
 	github.com/edsrzf/mmap-go v1.0.0 // indirect
-	github.com/ethereum/go-ethereum v1.10.26 // indirect
+	github.com/ethereum/go-ethereum v1.11.1 // indirect
 	github.com/fjl/memsize v0.0.0-20190710130421-bcb5799ab5e5 // indirect
 	github.com/gballet/go-libpcsclite v0.0.0-20190607065134-2772fd86a8ff // indirect
+	github.com/go-logfmt/logfmt v0.5.1 // indirect
 	github.com/go-ole/go-ole v1.2.6 // indirect
-	github.com/go-stack/stack v1.8.0 // indirect
+	github.com/go-stack/stack v1.8.1 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/snappy v0.0.4 // indirect
-	github.com/google/go-cmp v0.5.8 // indirect
+	github.com/google/go-cmp v0.5.9 // indirect
 	github.com/google/uuid v1.3.0 // indirect
 	github.com/gorilla/websocket v1.5.0 // indirect
 	github.com/graph-gophers/graphql-go v1.3.0 // indirect
@@ -48,7 +50,6 @@ require (
 	github.com/influxdata/influxdb-client-go/v2 v2.4.0 // indirect
 	github.com/influxdata/line-protocol v0.0.0-20210311194329-9aa0e372d097 // indirect
 	github.com/jackpal/go-nat-pmp v1.0.2 // indirect
-	github.com/kr/pretty v0.3.0 // indirect
 	github.com/mattn/go-runewidth v0.0.9 // indirect
 	github.com/mattn/go-sqlite3 v1.14.14 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
@@ -64,26 +65,25 @@ require (
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/prometheus/tsdb v0.7.1 // indirect
 	github.com/rjeczalik/notify v0.9.1 // indirect
-	github.com/rogpeppe/go-internal v1.8.1 // indirect
 	github.com/rs/cors v1.7.0 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
-	github.com/scroll-tech/zktrie v0.3.1 // indirect
+	github.com/scroll-tech/zktrie v0.5.0 // indirect
 	github.com/shirou/gopsutil v3.21.11+incompatible // indirect
 	github.com/sirupsen/logrus v1.9.0 // indirect
-	github.com/status-im/keycard-go v0.0.0-20190316090335-8537d3370df4 // indirect
+	github.com/status-im/keycard-go v0.2.0 // indirect
 	github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7 // indirect
 	github.com/tklauser/go-sysconf v0.3.10 // indirect
 	github.com/tklauser/numcpus v0.4.0 // indirect
-	github.com/tyler-smith/go-bip39 v1.0.1-0.20181017060643-dbb3b84ba2ef // indirect
+	github.com/tyler-smith/go-bip39 v1.1.0 // indirect
 	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
 	github.com/yusufpapurcu/wmi v1.2.2 // indirect
-	golang.org/x/crypto v0.5.0 // indirect
+	golang.org/x/crypto v0.6.0 // indirect
 	golang.org/x/mod v0.7.0 // indirect
-	golang.org/x/net v0.5.0 // indirect
+	golang.org/x/net v0.6.0 // indirect
 	golang.org/x/sync v0.1.0 // indirect
-	golang.org/x/sys v0.4.0 // indirect
-	golang.org/x/text v0.6.0 // indirect
-	golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba // indirect
+	golang.org/x/sys v0.5.0 // indirect
+	golang.org/x/text v0.7.0 // indirect
+	golang.org/x/time v0.0.0-20220922220347-f3bd1da661af // indirect
 	golang.org/x/tools v0.3.0 // indirect
 	gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce // indirect
 	gopkg.in/urfave/cli.v1 v1.20.0 // indirect

common/go.sum

@@ -78,8 +78,8 @@ github.com/cespare/cp v0.1.0 h1:SE+dxFebS7Iik5LK0tsi1k9ZCxEaFX4AjQmoyA+1dJk=
 github.com/cespare/cp v0.1.0/go.mod h1:SOGHArjBr4JWaSDEVpWpo/hNg6RoKrls6Oh40hiwW+s=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
-github.com/cespare/xxhash/v2 v2.1.2 h1:YRXhKfTDauu4ajMg1TPgFO5jnlC2HCbmLXMcTG5cbYE=
-github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
+github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
 github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
 github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
@@ -126,15 +126,15 @@ github.com/edsrzf/mmap-go v1.0.0/go.mod h1:YO35OhQPt3KJa3ryjFM5Bs14WD66h8eGKpfaB
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/ethereum/go-ethereum v1.10.13/go.mod h1:W3yfrFyL9C1pHcwY5hmRHVDaorTiQxhYBkKyu5mEDHw=
-github.com/ethereum/go-ethereum v1.10.26 h1:i/7d9RBBwiXCEuyduBQzJw/mKmnvzsN14jqBmytw72s=
-github.com/ethereum/go-ethereum v1.10.26/go.mod h1:EYFyF19u3ezGLD4RqOkLq+ZCXzYbLoNDdZlMt7kyKFg=
+github.com/ethereum/go-ethereum v1.11.1 h1:EMymmWFzpS7G9l9NvVN8G73cgdUIqDPNRf2YTSGBXlk=
+github.com/ethereum/go-ethereum v1.11.1/go.mod h1:DuefStAgaxoaYGLR0FueVcVbehmn5n9QUcVrMCuOvuc=
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 github.com/fjl/memsize v0.0.0-20190710130421-bcb5799ab5e5 h1:FtmdgXiUlNeRsoNMFlKLDt+S+6hbjVMEW6RGQ7aUf7c=
 github.com/fjl/memsize v0.0.0-20190710130421-bcb5799ab5e5/go.mod h1:VvhXpOYNQvB+uIk2RvXzuaQtkQJzzIx6lSBe1xv7hi0=
 github.com/fogleman/gg v1.2.1-0.20190220221249-0403632d5b90/go.mod h1:R/bRT+9gY/C5z7JzPU0zXsXHKM4/ayA+zqcVNZzPa1k=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
-github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4=
 github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
+github.com/fsnotify/fsnotify v1.6.0 h1:n+5WquG0fcWoWp6xPWfHdbskMCQaFnG6PfBrh1Ky4HY=
 github.com/gballet/go-libpcsclite v0.0.0-20190607065134-2772fd86a8ff h1:tY80oXqGNY4FhTFhk+o9oFHGINQ/+vhlm8HFzi6znCI=
 github.com/gballet/go-libpcsclite v0.0.0-20190607065134-2772fd86a8ff/go.mod h1:x7DCsMOv1taUwEWCzT4cmDeAkigA5/QCwUodaVOe8Ww=
 github.com/getkin/kin-openapi v0.53.0/go.mod h1:7Yn5whZr5kJi6t+kShccXS8ae1APpYTW6yheSwk8Yi4=
@@ -148,8 +148,9 @@ github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2
 github.com/go-kit/kit v0.8.0 h1:Wz+5lgoB0kkuqLEc6NVmwRknTKP6dTGbSqvhZtBI/j0=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
-github.com/go-logfmt/logfmt v0.4.0 h1:MP4Eh7ZCb31lleYCFuwm0oe4/YGak+5l1vA2NOE80nA=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
+github.com/go-logfmt/logfmt v0.5.1 h1:otpy5pqBCBZ1ng9RQ0dPu4PN7ba75Y/aA+UpowDyNVA=
+github.com/go-logfmt/logfmt v0.5.1/go.mod h1:WYhtIu8zTZfxdn5+rREduYbwxfcBr/Vr6KEVveWlfTs=
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@@ -159,8 +160,9 @@ github.com/go-sourcemap/sourcemap v2.1.3+incompatible/go.mod h1:F8jJfvm2KbVjc5Nq
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@@ -199,8 +201,8 @@ github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
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@@ -269,8 +271,8 @@ github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1
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@@ -283,12 +285,10 @@ github.com/klauspost/cpuid v0.0.0-20170728055534-ae7887de9fa5/go.mod h1:Pj4uuM52
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@@ -308,16 +308,17 @@ github.com/matryer/moq v0.0.0-20190312154309-6cfb0558e1bd/go.mod h1:9ELz6aaclSIG
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@@ -372,7 +373,6 @@ github.com/peterh/liner v1.1.1-0.20190123174540-a2c9a5303de7 h1:oYW+YCJ1pachXTQm
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@@ -396,19 +396,16 @@ github.com/retailnext/hllpp v1.0.1-0.20180308014038-101a6d2f8b52/go.mod h1:RDpi1
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@@ -425,8 +422,9 @@ github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72/go.mod h1:JwIasO
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@@ -448,11 +446,12 @@ github.com/tklauser/go-sysconf v0.3.10/go.mod h1:C8XykCvCb+Gn0oNCWPIlcb0RuglQTYa
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 github.com/valyala/fasttemplate v1.2.1/go.mod h1:KHLXt3tVN2HBp8eijSv/kGJopbvo7S+qRAEEKiv+SiQ=
@@ -482,8 +481,8 @@ golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a/go.mod h1:LzIPMQfyMNhhGPh
 golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=
 golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4=
 golang.org/x/crypto v0.0.0-20211117183948-ae814b36b871/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
-golang.org/x/crypto v0.5.0 h1:U/0M97KRkSFvyD/3FSmdP5W5swImpNgle/EHFhOsQPE=
-golang.org/x/crypto v0.5.0/go.mod h1:NK/OQwhpMQP3MwtdjgLlYHnH9ebylxKWv3e0fK+mkQU=
+golang.org/x/crypto v0.6.0 h1:qfktjS5LUO+fFKeJXZ+ikTRijMmljikvG68fpMMruSc=
+golang.org/x/crypto v0.6.0/go.mod h1:OFC/31mSvZgRz0V1QTNCzfAI1aIRzbiufJtkMIlEp58=
 golang.org/x/exp v0.0.0-20180321215751-8460e604b9de/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20180807140117-3d87b88a115f/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
@@ -541,8 +540,8 @@ golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v
 golang.org/x/net v0.0.0-20210805182204-aaa1db679c0d/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
-golang.org/x/net v0.5.0 h1:GyT4nK/YDHSqa1c4753ouYCDajOYKTja9Xb/OHtgvSw=
-golang.org/x/net v0.5.0/go.mod h1:DivGGAXEgPSlEBzxGzZI+ZLohi+xUj054jfeKui00ws=
+golang.org/x/net v0.6.0 h1:L4ZwwTvKW9gr0ZMS1yrHD9GZhIuVjOBBnaKH+SPQK0Q=
+golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
@@ -599,15 +598,15 @@ golang.org/x/sys v0.0.0-20210420205809-ac73e9fd8988/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210616094352-59db8d763f22/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210816183151-1e6c022a8912/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220128215802-99c3d69c2c27/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.4.0 h1:Zr2JFtRQNX3BCZ8YtxRE9hNJYC8J6I1MVbMg6owUp18=
-golang.org/x/sys v0.4.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.5.0 h1:MUK/U/4lj1t1oPg0HfuXDN/Z1wv31ZJ/YcPiGccS4DU=
+golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
@@ -619,13 +618,14 @@ golang.org/x/text v0.3.4/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/text v0.6.0 h1:3XmdazWV+ubf7QgHSTWeykHOci5oeekaGJBLkrkaw4k=
-golang.org/x/text v0.6.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
+golang.org/x/text v0.7.0 h1:4BRB4x83lYWy72KwLD/qYDuTu7q9PjSagHvijDw7cLo=
+golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20201208040808-7e3f01d25324/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
-golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba h1:O8mE0/t419eoIwhTFpKVkHiTs/Igowgfkj25AcZrtiE=
 golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
+golang.org/x/time v0.0.0-20220922220347-f3bd1da661af h1:Yx9k8YCG3dvF87UAn2tu2HQLf2dt/eR1bXxpLMWeH+Y=
+golang.org/x/time v0.0.0-20220922220347-f3bd1da661af/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/tools v0.0.0-20180525024113-a5b4c53f6e8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20181030221726-6c7e314b6563/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
@@ -731,6 +731,7 @@ gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gotest.tools v2.2.0+incompatible h1:VsBPFP1AI068pPrMxtb/S8Zkgf9xEmTLJjfM+P5UIEo=
 gotest.tools v2.2.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw=
 gotest.tools/v3 v3.0.2/go.mod h1:3SzNCllyD9/Y+b5r9JIKQ474KzkZyqLqEfYqMsX94Bk=
 gotest.tools/v3 v3.4.0 h1:ZazjZUfuVeZGLAmlKKuyv3IKP5orXcwtOwDQH6YVr6o=

common/libzkp/impl/Cargo.toml

@@ -7,9 +7,16 @@ edition = "2021"
 [lib]
 crate-type = ["staticlib"]
 
+[patch."https://github.com/privacy-scaling-explorations/halo2.git"]
+halo2_proofs = { git = "https://github.com/scroll-tech/halo2.git", branch = "scroll-dev-0220"  }
+[patch."https://github.com/privacy-scaling-explorations/poseidon.git"]
+poseidon = { git = "https://github.com/scroll-tech/poseidon.git", branch = "scroll-dev-0220" }
+[patch."https://github.com/scroll-tech/zktrie.git"]
+zktrie = { git = "https://github.com/lispc/zktrie", branch = "scroll-dev-0215" }
+
 [dependencies]
-zkevm = { git = "https://github.com/scroll-tech/scroll-zkevm", branch="fix/mpt_limit" }
-types = { git = "https://github.com/scroll-tech/scroll-zkevm", branch="fix/mpt_limit" }
+zkevm = { git = "https://github.com/scroll-tech/scroll-zkevm", branch="goerli-0215" }
+types = { git = "https://github.com/scroll-tech/scroll-zkevm", branch="goerli-0215" }
 
 log = "0.4"
 env_logger = "0.9.0"

common/libzkp/impl/rust-toolchain

@@ -1 +1 @@
-nightly-2022-08-23
+nightly-2022-12-10

common/libzkp/impl/src/prove.rs

@@ -44,7 +44,7 @@ pub unsafe extern "C" fn create_agg_proof_multi(trace_char: *const c_char) -> *c
     let proof = PROVER
         .get_mut()
         .unwrap()
-        .create_agg_circuit_proof_multi(traces.as_slice())
+        .create_agg_circuit_proof_batch(traces.as_slice())
         .unwrap();
     let proof_bytes = serde_json::to_vec(&proof).unwrap();
     vec_to_c_char(proof_bytes)

common/message/message.go

@@ -214,8 +214,9 @@ func (z *ProofDetail) Hash() ([]byte, error) {
 
 // AggProof includes the proof and public input that are required to verification and rollup.
 type AggProof struct {
-	Proof     []byte `json:"proof"`
-	Instance  []byte `json:"instance"`
-	FinalPair []byte `json:"final_pair"`
-	Vk        []byte `json:"vk"`
+	Proof      []byte `json:"proof"`
+	Instance   []byte `json:"instance"`
+	FinalPair  []byte `json:"final_pair"`
+	Vk         []byte `json:"vk"`
+	BlockCount uint   `json:"block_count"`
 }

common/metrics/metrics.go

@@ -0,0 +1,53 @@
+package metrics
+
+import (
+	"context"
+	"net"
+	"net/http"
+	"strconv"
+
+	"github.com/scroll-tech/go-ethereum/log"
+	"github.com/scroll-tech/go-ethereum/metrics"
+	"github.com/scroll-tech/go-ethereum/metrics/prometheus"
+	"github.com/scroll-tech/go-ethereum/rpc"
+
+	"github.com/urfave/cli/v2"
+
+	"scroll-tech/common/utils"
+)
+
+// Serve starts the metrics server on the given address, will be closed when the given
+// context is canceled.
+func Serve(ctx context.Context, c *cli.Context) {
+	if !c.Bool(utils.MetricsEnabled.Name) {
+		return
+	}
+
+	address := net.JoinHostPort(
+		c.String(utils.MetricsAddr.Name),
+		strconv.Itoa(c.Int(utils.MetricsPort.Name)),
+	)
+
+	server := &http.Server{
+		Addr:         address,
+		Handler:      prometheus.Handler(metrics.DefaultRegistry),
+		ReadTimeout:  rpc.DefaultHTTPTimeouts.ReadTimeout,
+		WriteTimeout: rpc.DefaultHTTPTimeouts.WriteTimeout,
+		IdleTimeout:  rpc.DefaultHTTPTimeouts.IdleTimeout,
+	}
+
+	go func() {
+		<-ctx.Done()
+		if err := server.Close(); err != nil {
+			log.Error("Failed to close metrics server", "error", err)
+		}
+	}()
+
+	log.Info("Starting metrics server", "address", address)
+
+	go func() {
+		if err := server.ListenAndServe(); err != nil {
+			log.Error("start metrics server error", "error", err)
+		}
+	}()
+}

common/testdata/blockTrace_02.json

@@ -1,4 +1,5 @@
 {
+    "withdrawTrieRoot": "0x0000000000000000000000000000000000000000",
     "coinbase": {
         "address": "0x1c5a77d9fa7ef466951b2f01f724bca3a5820b63",
         "nonce": 2,

common/testdata/blockTrace_03.json

@@ -1,4 +1,5 @@
 {
+    "withdrawTrieRoot": "0x0000000000000000000000000000000000000000",
     "coinbase": {
         "address": "0x1c5a77d9fa7ef466951b2f01f724bca3a5820b63",
         "nonce": 3,

common/types/batch.go

@@ -0,0 +1,237 @@
+package types
+
+import (
+	"bufio"
+	"bytes"
+	"encoding/binary"
+	"math/big"
+
+	"github.com/scroll-tech/go-ethereum/common"
+	"github.com/scroll-tech/go-ethereum/common/hexutil"
+	"github.com/scroll-tech/go-ethereum/core/types"
+	"github.com/scroll-tech/go-ethereum/crypto"
+
+	abi "scroll-tech/bridge/abi"
+)
+
+// PublicInputHashConfig is the configuration of how to compute the public input hash.
+type PublicInputHashConfig struct {
+	MaxTxNum      int         `json:"max_tx_num"`
+	PaddingTxHash common.Hash `json:"padding_tx_hash"`
+}
+
+const defaultMaxTxNum = 44
+
+var defaultPaddingTxHash = [32]byte{}
+
+// BatchData contains info of batch to be committed.
+type BatchData struct {
+	Batch        abi.IScrollChainBatch
+	TxHashes     []common.Hash
+	TotalTxNum   uint64
+	TotalL1TxNum uint64
+	TotalL2Gas   uint64
+
+	// cache for the BatchHash
+	hash *common.Hash
+	// The config to compute the public input hash, or the block hash.
+	// If it is nil, the hash calculation will use `defaultMaxTxNum` and `defaultPaddingTxHash`.
+	piCfg *PublicInputHashConfig
+}
+
+// Timestamp returns the timestamp of the first block in the BlockData.
+func (b *BatchData) Timestamp() uint64 {
+	if len(b.Batch.Blocks) == 0 {
+		return 0
+	}
+	return b.Batch.Blocks[0].Timestamp
+}
+
+// Hash calculates the hash of this batch.
+func (b *BatchData) Hash() *common.Hash {
+	if b.hash != nil {
+		return b.hash
+	}
+
+	buf := make([]byte, 8)
+	hasher := crypto.NewKeccakState()
+
+	// 1. hash PrevStateRoot, NewStateRoot, WithdrawTrieRoot
+	// @todo: panic on error here.
+	_, _ = hasher.Write(b.Batch.PrevStateRoot[:])
+	_, _ = hasher.Write(b.Batch.NewStateRoot[:])
+	_, _ = hasher.Write(b.Batch.WithdrawTrieRoot[:])
+
+	// 2. hash all block contexts
+	for _, block := range b.Batch.Blocks {
+		// write BlockHash & ParentHash
+		_, _ = hasher.Write(block.BlockHash[:])
+		_, _ = hasher.Write(block.ParentHash[:])
+		// write BlockNumber
+		binary.BigEndian.PutUint64(buf, block.BlockNumber)
+		_, _ = hasher.Write(buf)
+		// write Timestamp
+		binary.BigEndian.PutUint64(buf, block.Timestamp)
+		_, _ = hasher.Write(buf)
+		// write BaseFee
+		var baseFee [32]byte
+		if block.BaseFee != nil {
+			baseFee = newByte32FromBytes(block.BaseFee.Bytes())
+		}
+		_, _ = hasher.Write(baseFee[:])
+		// write GasLimit
+		binary.BigEndian.PutUint64(buf, block.GasLimit)
+		_, _ = hasher.Write(buf)
+		// write NumTransactions
+		binary.BigEndian.PutUint16(buf[:2], block.NumTransactions)
+		_, _ = hasher.Write(buf[:2])
+		// write NumL1Messages
+		binary.BigEndian.PutUint16(buf[:2], block.NumL1Messages)
+		_, _ = hasher.Write(buf[:2])
+	}
+
+	// 3. add all tx hashes
+	for _, txHash := range b.TxHashes {
+		_, _ = hasher.Write(txHash[:])
+	}
+
+	// 4. append empty tx hash up to MaxTxNum
+	maxTxNum := defaultMaxTxNum
+	paddingTxHash := common.Hash(defaultPaddingTxHash)
+	if b.piCfg != nil {
+		maxTxNum = b.piCfg.MaxTxNum
+		paddingTxHash = b.piCfg.PaddingTxHash
+	}
+	for i := len(b.TxHashes); i < maxTxNum; i++ {
+		_, _ = hasher.Write(paddingTxHash[:])
+	}
+
+	b.hash = new(common.Hash)
+	_, _ = hasher.Read(b.hash[:])
+
+	return b.hash
+}
+
+// NewBatchData creates a BatchData given the parent batch information and the traces of the blocks
+// included in this batch
+func NewBatchData(parentBatch *BlockBatch, blockTraces []*types.BlockTrace, piCfg *PublicInputHashConfig) *BatchData {
+	batchData := new(BatchData)
+	batch := &batchData.Batch
+
+	// set BatchIndex, ParentBatchHash
+	batch.BatchIndex = parentBatch.Index + 1
+	batch.ParentBatchHash = common.HexToHash(parentBatch.Hash)
+	batch.Blocks = make([]abi.IScrollChainBlockContext, len(blockTraces))
+
+	var batchTxDataBuf bytes.Buffer
+	batchTxDataWriter := bufio.NewWriter(&batchTxDataBuf)
+
+	for i, trace := range blockTraces {
+		batchData.TotalTxNum += uint64(len(trace.Transactions))
+		batchData.TotalL2Gas += trace.Header.GasUsed
+
+		// set baseFee to 0 when it's nil in the block header
+		baseFee := trace.Header.BaseFee
+		if baseFee == nil {
+			baseFee = big.NewInt(0)
+		}
+
+		batch.Blocks[i] = abi.IScrollChainBlockContext{
+			BlockHash:       trace.Header.Hash(),
+			ParentHash:      trace.Header.ParentHash,
+			BlockNumber:     trace.Header.Number.Uint64(),
+			Timestamp:       trace.Header.Time,
+			BaseFee:         baseFee,
+			GasLimit:        trace.Header.GasLimit,
+			NumTransactions: uint16(len(trace.Transactions)),
+			NumL1Messages:   0, // TODO: currently use 0, will re-enable after we use l2geth to include L1 messages
+		}
+
+		// fill in RLP-encoded transactions
+		for _, txData := range trace.Transactions {
+			data, _ := hexutil.Decode(txData.Data)
+			// right now we only support legacy tx
+			tx := types.NewTx(&types.LegacyTx{
+				Nonce:    txData.Nonce,
+				To:       txData.To,
+				Value:    txData.Value.ToInt(),
+				Gas:      txData.Gas,
+				GasPrice: txData.GasPrice.ToInt(),
+				Data:     data,
+				V:        txData.V.ToInt(),
+				R:        txData.R.ToInt(),
+				S:        txData.S.ToInt(),
+			})
+			rlpTxData, _ := tx.MarshalBinary()
+			var txLen [4]byte
+			binary.BigEndian.PutUint32(txLen[:], uint32(len(rlpTxData)))
+			_, _ = batchTxDataWriter.Write(txLen[:])
+			_, _ = batchTxDataWriter.Write(rlpTxData)
+			batchData.TxHashes = append(batchData.TxHashes, tx.Hash())
+		}
+
+		// set PrevStateRoot from the first block
+		if i == 0 {
+			batch.PrevStateRoot = trace.StorageTrace.RootBefore
+		}
+
+		// set NewStateRoot & WithdrawTrieRoot from the last block
+		if i == len(blockTraces)-1 {
+			batch.NewStateRoot = trace.Header.Root
+			batch.WithdrawTrieRoot = trace.WithdrawTrieRoot
+		}
+	}
+
+	if err := batchTxDataWriter.Flush(); err != nil {
+		panic("Buffered I/O flush failed")
+	}
+
+	batch.L2Transactions = batchTxDataBuf.Bytes()
+	batchData.piCfg = piCfg
+
+	return batchData
+}
+
+// NewGenesisBatchData generates the batch that contains the genesis block.
+func NewGenesisBatchData(genesisBlockTrace *types.BlockTrace) *BatchData {
+	header := genesisBlockTrace.Header
+	if header.Number.Uint64() != 0 {
+		panic("invalid genesis block trace: block number is not 0")
+	}
+
+	batchData := new(BatchData)
+	batch := &batchData.Batch
+
+	// fill in batch information
+	batch.BatchIndex = 0
+	batch.Blocks = make([]abi.IScrollChainBlockContext, 1)
+	batch.NewStateRoot = header.Root
+	// PrevStateRoot, WithdrawTrieRoot, ParentBatchHash should all be 0
+	// L2Transactions should be empty
+
+	// fill in block context
+	batch.Blocks[0] = abi.IScrollChainBlockContext{
+		BlockHash:       header.Hash(),
+		ParentHash:      header.ParentHash,
+		BlockNumber:     header.Number.Uint64(),
+		Timestamp:       header.Time,
+		BaseFee:         header.BaseFee,
+		GasLimit:        header.GasLimit,
+		NumTransactions: 0,
+		NumL1Messages:   0,
+	}
+
+	return batchData
+}
+
+// newByte32FromBytes converts the bytes in big-endian encoding to 32 bytes in big-endian encoding
+func newByte32FromBytes(b []byte) [32]byte {
+	var byte32 [32]byte
+
+	if len(b) > 32 {
+		b = b[len(b)-32:]
+	}
+
+	copy(byte32[32-len(b):], b)
+	return byte32
+}

common/types/batch_test.go

@@ -0,0 +1,99 @@
+package types
+
+import (
+	"math/big"
+	"testing"
+
+	"gotest.tools/assert"
+
+	"github.com/scroll-tech/go-ethereum/common"
+	geth_types "github.com/scroll-tech/go-ethereum/core/types"
+
+	abi "scroll-tech/bridge/abi"
+)
+
+func TestBatchHash(t *testing.T) {
+	txBytes := common.Hex2Bytes("02f8710582fd14808506e38dccc9825208944d496ccc28058b1d74b7a19541663e21154f9c848801561db11e24a43380c080a0d890606d7a35b2ab0f9b866d62c092d5b163f3e6a55537ae1485aac08c3f8ff7a023997be2d32f53e146b160fff0ba81e81dbb4491c865ab174d15c5b3d28c41ae")
+	tx := new(geth_types.Transaction)
+	if err := tx.UnmarshalBinary(txBytes); err != nil {
+		t.Fatalf("invalid tx hex string: %s", err)
+	}
+
+	batchData := new(BatchData)
+	batchData.TxHashes = append(batchData.TxHashes, tx.Hash())
+	batchData.piCfg = &PublicInputHashConfig{
+		MaxTxNum:      4,
+		PaddingTxHash: common.HexToHash("0xb5baa665b2664c3bfed7eb46e00ebc110ecf2ebd257854a9bf2b9dbc9b2c08f6"),
+	}
+
+	batch := &batchData.Batch
+	batch.PrevStateRoot = common.HexToHash("0x000000000000000000000000000000000000000000000000000000000000cafe")
+
+	block := abi.IScrollChainBlockContext{
+		BlockNumber:     51966,
+		Timestamp:       123456789,
+		BaseFee:         new(big.Int).SetUint64(0),
+		GasLimit:        10000000000000000,
+		NumTransactions: 1,
+		NumL1Messages:   0,
+	}
+	batch.Blocks = append(batch.Blocks, block)
+
+	hash := batchData.Hash()
+	assert.Equal(t, *hash, common.HexToHash("0xa9f2ca3175794f91226a410ba1e60fff07a405c957562675c4149b77e659d805"))
+
+	// use a different tx hash
+	txBytes = common.Hex2Bytes("f8628001830f424094000000000000000000000000000000000000bbbb8080820a97a064e07cd8f939e2117724bdcbadc80dda421381cbc2a1f4e0d093d9cc5c5cf68ea03e264227f80852d88743cd9e43998f2746b619180366a87e4531debf9c3fa5dc")
+	tx = new(geth_types.Transaction)
+	if err := tx.UnmarshalBinary(txBytes); err != nil {
+		t.Fatalf("invalid tx hex string: %s", err)
+	}
+	batchData.TxHashes[0] = tx.Hash()
+
+	batchData.hash = nil // clear the cache
+	assert.Equal(t, *batchData.Hash(), common.HexToHash("0x398cb22bbfa1665c1b342b813267538a4c933d7f92d8bd9184aba0dd1122987b"))
+}
+
+func TestNewGenesisBatch(t *testing.T) {
+	genesisBlock := &geth_types.Header{
+		UncleHash:   common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
+		Root:        common.HexToHash("0x1b186a7a90ec3b41a2417062fe44dce8ce82ae76bfbb09eae786a4f1be1895f5"),
+		TxHash:      common.HexToHash("0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421"),
+		ReceiptHash: common.HexToHash("0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421"),
+		Difficulty:  big.NewInt(1),
+		Number:      big.NewInt(0),
+		GasLimit:    940000000,
+		GasUsed:     0,
+		Time:        1639724192,
+		Extra:       common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000000214f8d488aa9ebf83e30bad45fb8f9c8ee2509f5511caff794753d07e9dfb218cfc233bb62d2c57022783094e1a7edb6f069f8424bb68496a0926b130000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"),
+		BaseFee:     big.NewInt(1000000000),
+	}
+	assert.Equal(
+		t,
+		genesisBlock.Hash().Hex(),
+		"0x92826bd3aad2ef70d8061dc4e25150b305d1233d9cd7579433a77d6eb01dae1c",
+		"wrong genesis block header",
+	)
+
+	blockTrace := &geth_types.BlockTrace{
+		Coinbase:         nil,
+		Header:           genesisBlock,
+		Transactions:     []*geth_types.TransactionData{},
+		StorageTrace:     nil,
+		ExecutionResults: []*geth_types.ExecutionResult{},
+		MPTWitness:       nil,
+	}
+
+	batchData := NewGenesisBatchData(blockTrace)
+	t.Log(batchData.Batch.Blocks[0])
+	batchData.piCfg = &PublicInputHashConfig{
+		MaxTxNum:      25,
+		PaddingTxHash: common.HexToHash("0xb5baa665b2664c3bfed7eb46e00ebc110ecf2ebd257854a9bf2b9dbc9b2c08f6"),
+	}
+	assert.Equal(
+		t,
+		batchData.Hash().Hex(),
+		"0x65cf210e30f75cf8fd198df124255f73bc08d6324759e828a784fa938e7ac43d",
+		"wrong genesis batch hash",
+	)
+}

common/types/db.go

@@ -0,0 +1,250 @@
+// Package types defines the table schema data structure used in the database tables
+package types
+
+import (
+	"database/sql"
+	"fmt"
+	"time"
+)
+
+// L1BlockStatus represents current l1 block processing status
+type L1BlockStatus int
+
+// GasOracleStatus represents current gas oracle processing status
+type GasOracleStatus int
+
+const (
+	// L1BlockUndefined : undefined l1 block status
+	L1BlockUndefined L1BlockStatus = iota
+
+	// L1BlockPending represents the l1 block status is pending
+	L1BlockPending
+
+	// L1BlockImporting represents the l1 block status is importing
+	L1BlockImporting
+
+	// L1BlockImported represents the l1 block status is imported
+	L1BlockImported
+
+	// L1BlockFailed represents the l1 block status is failed
+	L1BlockFailed
+)
+
+const (
+	// GasOracleUndefined : undefined gas oracle status
+	GasOracleUndefined GasOracleStatus = iota
+
+	// GasOraclePending represents the gas oracle status is pending
+	GasOraclePending
+
+	// GasOracleImporting represents the gas oracle status is importing
+	GasOracleImporting
+
+	// GasOracleImported represents the gas oracle status is imported
+	GasOracleImported
+
+	// GasOracleFailed represents the gas oracle status is failed
+	GasOracleFailed
+)
+
+// L1BlockInfo is structure of stored l1 block
+type L1BlockInfo struct {
+	Number    uint64 `json:"number" db:"number"`
+	Hash      string `json:"hash" db:"hash"`
+	HeaderRLP string `json:"header_rlp" db:"header_rlp"`
+	BaseFee   uint64 `json:"base_fee" db:"base_fee"`
+
+	BlockStatus     L1BlockStatus   `json:"block_status" db:"block_status"`
+	GasOracleStatus GasOracleStatus `json:"oracle_status" db:"oracle_status"`
+
+	ImportTxHash sql.NullString `json:"import_tx_hash" db:"import_tx_hash"`
+	OracleTxHash sql.NullString `json:"oracle_tx_hash" db:"oracle_tx_hash"`
+}
+
+// MsgStatus represents current layer1 transaction processing status
+type MsgStatus int
+
+const (
+	// MsgUndefined : undefined msg status
+	MsgUndefined MsgStatus = iota
+
+	// MsgPending represents the from_layer message status is pending
+	MsgPending
+
+	// MsgSubmitted represents the from_layer message status is submitted
+	MsgSubmitted
+
+	// MsgConfirmed represents the from_layer message status is confirmed
+	MsgConfirmed
+
+	// MsgFailed represents the from_layer message status is failed
+	MsgFailed
+
+	// MsgExpired represents the from_layer message status is expired
+	MsgExpired
+)
+
+// L1Message is structure of stored layer1 bridge message
+type L1Message struct {
+	QueueIndex uint64    `json:"queue_index" db:"queue_index"`
+	MsgHash    string    `json:"msg_hash" db:"msg_hash"`
+	Height     uint64    `json:"height" db:"height"`
+	Sender     string    `json:"sender" db:"sender"`
+	Value      string    `json:"value" db:"value"`
+	Target     string    `json:"target" db:"target"`
+	Calldata   string    `json:"calldata" db:"calldata"`
+	GasLimit   uint64    `json:"gas_limit" db:"gas_limit"`
+	Layer1Hash string    `json:"layer1_hash" db:"layer1_hash"`
+	Status     MsgStatus `json:"status" db:"status"`
+}
+
+// L2Message is structure of stored layer2 bridge message
+type L2Message struct {
+	Nonce      uint64    `json:"nonce" db:"nonce"`
+	MsgHash    string    `json:"msg_hash" db:"msg_hash"`
+	Height     uint64    `json:"height" db:"height"`
+	Sender     string    `json:"sender" db:"sender"`
+	Value      string    `json:"value" db:"value"`
+	Target     string    `json:"target" db:"target"`
+	Calldata   string    `json:"calldata" db:"calldata"`
+	Layer2Hash string    `json:"layer2_hash" db:"layer2_hash"`
+	Status     MsgStatus `json:"status" db:"status"`
+}
+
+// BlockInfo is structure of stored `block_trace` without `trace`
+type BlockInfo struct {
+	Number         uint64         `json:"number" db:"number"`
+	Hash           string         `json:"hash" db:"hash"`
+	ParentHash     string         `json:"parent_hash" db:"parent_hash"`
+	BatchHash      sql.NullString `json:"batch_hash" db:"batch_hash"`
+	TxNum          uint64         `json:"tx_num" db:"tx_num"`
+	GasUsed        uint64         `json:"gas_used" db:"gas_used"`
+	BlockTimestamp uint64         `json:"block_timestamp" db:"block_timestamp"`
+}
+
+// RollerProveStatus is the roller prove status of a block batch (session)
+type RollerProveStatus int32
+
+const (
+	// RollerAssigned indicates roller assigned but has not submitted proof
+	RollerAssigned RollerProveStatus = iota
+	// RollerProofValid indicates roller has submitted valid proof
+	RollerProofValid
+	// RollerProofInvalid indicates roller has submitted invalid proof
+	RollerProofInvalid
+)
+
+func (s RollerProveStatus) String() string {
+	switch s {
+	case RollerAssigned:
+		return "RollerAssigned"
+	case RollerProofValid:
+		return "RollerProofValid"
+	case RollerProofInvalid:
+		return "RollerProofInvalid"
+	default:
+		return fmt.Sprintf("Bad Value: %d", int32(s))
+	}
+}
+
+// RollerStatus is the roller name and roller prove status
+type RollerStatus struct {
+	PublicKey string            `json:"public_key"`
+	Name      string            `json:"name"`
+	Status    RollerProveStatus `json:"status"`
+}
+
+// SessionInfo is assigned rollers info of a block batch (session)
+type SessionInfo struct {
+	ID             string                   `json:"id"`
+	Rollers        map[string]*RollerStatus `json:"rollers"`
+	StartTimestamp int64                    `json:"start_timestamp"`
+}
+
+// ProvingStatus block_batch proving_status (unassigned, assigned, proved, verified, submitted)
+type ProvingStatus int
+
+const (
+	// ProvingStatusUndefined : undefined proving_task status
+	ProvingStatusUndefined ProvingStatus = iota
+	// ProvingTaskUnassigned : proving_task is not assigned to be proved
+	ProvingTaskUnassigned
+	// ProvingTaskSkipped : proving_task is skipped for proof generation
+	ProvingTaskSkipped
+	// ProvingTaskAssigned : proving_task is assigned to be proved
+	ProvingTaskAssigned
+	// ProvingTaskProved : proof has been returned by prover
+	ProvingTaskProved
+	// ProvingTaskVerified : proof is valid
+	ProvingTaskVerified
+	// ProvingTaskFailed : fail to generate proof
+	ProvingTaskFailed
+)
+
+func (ps ProvingStatus) String() string {
+	switch ps {
+	case ProvingTaskUnassigned:
+		return "unassigned"
+	case ProvingTaskSkipped:
+		return "skipped"
+	case ProvingTaskAssigned:
+		return "assigned"
+	case ProvingTaskProved:
+		return "proved"
+	case ProvingTaskVerified:
+		return "verified"
+	case ProvingTaskFailed:
+		return "failed"
+	default:
+		return "undefined"
+	}
+}
+
+// RollupStatus block_batch rollup_status (pending, committing, committed, finalizing, finalized)
+type RollupStatus int
+
+const (
+	// RollupUndefined : undefined rollup status
+	RollupUndefined RollupStatus = iota
+	// RollupPending : batch is pending to rollup to layer1
+	RollupPending
+	// RollupCommitting : rollup transaction is submitted to layer1
+	RollupCommitting
+	// RollupCommitted : rollup transaction is confirmed to layer1
+	RollupCommitted
+	// RollupFinalizing : finalize transaction is submitted to layer1
+	RollupFinalizing
+	// RollupFinalized : finalize transaction is confirmed to layer1
+	RollupFinalized
+	// RollupFinalizationSkipped : batch finalization is skipped
+	RollupFinalizationSkipped
+)
+
+// BlockBatch is structure of stored block_batch
+type BlockBatch struct {
+	Hash                string          `json:"hash" db:"hash"`
+	Index               uint64          `json:"index" db:"index"`
+	ParentHash          string          `json:"parent_hash" db:"parent_hash"`
+	StartBlockNumber    uint64          `json:"start_block_number" db:"start_block_number"`
+	StartBlockHash      string          `json:"start_block_hash" db:"start_block_hash"`
+	EndBlockNumber      uint64          `json:"end_block_number" db:"end_block_number"`
+	EndBlockHash        string          `json:"end_block_hash" db:"end_block_hash"`
+	StateRoot           string          `json:"state_root" db:"state_root"`
+	TotalTxNum          uint64          `json:"total_tx_num" db:"total_tx_num"`
+	TotalL1TxNum        uint64          `json:"total_l1_tx_num" db:"total_l1_tx_num"`
+	TotalL2Gas          uint64          `json:"total_l2_gas" db:"total_l2_gas"`
+	ProvingStatus       ProvingStatus   `json:"proving_status" db:"proving_status"`
+	Proof               []byte          `json:"proof" db:"proof"`
+	InstanceCommitments []byte          `json:"instance_commitments" db:"instance_commitments"`
+	ProofTimeSec        uint64          `json:"proof_time_sec" db:"proof_time_sec"`
+	RollupStatus        RollupStatus    `json:"rollup_status" db:"rollup_status"`
+	OracleStatus        GasOracleStatus `json:"oracle_status" db:"oracle_status"`
+	CommitTxHash        sql.NullString  `json:"commit_tx_hash" db:"commit_tx_hash"`
+	FinalizeTxHash      sql.NullString  `json:"finalize_tx_hash" db:"finalize_tx_hash"`
+	OracleTxHash        sql.NullString  `json:"oracle_tx_hash" db:"oracle_tx_hash"`
+	CreatedAt           *time.Time      `json:"created_at" db:"created_at"`
+	ProverAssignedAt    *time.Time      `json:"prover_assigned_at" db:"prover_assigned_at"`
+	ProvedAt            *time.Time      `json:"proved_at" db:"proved_at"`
+	CommittedAt         *time.Time      `json:"committed_at" db:"committed_at"`
+	FinalizedAt         *time.Time      `json:"finalized_at" db:"finalized_at"`
+}

common/utils/contracts.go

@@ -1,19 +0,0 @@
-package utils
-
-import (
-	"math/big"
-
-	"github.com/scroll-tech/go-ethereum/common"
-	"github.com/scroll-tech/go-ethereum/crypto"
-)
-
-// ComputeBatchID compute a unique hash for a batch using "endBlockHash" & "endBlockHash in last batch"
-// & "batch height", following the logic in `_computeBatchId` in contracts/src/L1/rollup/ZKRollup.sol
-func ComputeBatchID(endBlockHash common.Hash, lastEndBlockHash common.Hash, index *big.Int) string {
-	indexBytes := make([]byte, 32)
-	return crypto.Keccak256Hash(
-		endBlockHash.Bytes(),
-		lastEndBlockHash.Bytes(),
-		index.FillBytes(indexBytes),
-	).String()
-}

common/utils/contracts_test.go

@@ -1,40 +0,0 @@
-package utils_test
-
-import (
-	"math/big"
-	"testing"
-
-	"github.com/scroll-tech/go-ethereum/common"
-	"github.com/scroll-tech/go-ethereum/common/math"
-	"github.com/stretchr/testify/assert"
-
-	"scroll-tech/common/utils"
-)
-
-func TestComputeBatchID(t *testing.T) {
-	// expected generated using contract:
-	// ```
-	// // SPDX-License-Identifier: MIT
-
-	// pragma solidity ^0.6.6;
-
-	// contract AAA {
-	//     uint256 private constant MAX = ~uint256(0);
-
-	//     function _computeBatchId() public pure returns (bytes32) {
-	//         return keccak256(abi.encode(bytes32(0), bytes32(0), MAX));
-	//     }
-	// }
-	// ```
-
-	expected := "0xafe1e714d2cd3ed5b0fa0a04ee95cd564b955ab8661c5665588758b48b66e263"
-	actual := utils.ComputeBatchID(common.Hash{}, common.Hash{}, math.MaxBig256)
-	assert.Equal(t, expected, actual)
-
-	expected = "0xe05698242b035c0e4d1d58e8ab89507ac7a1403b17fd6a7ea87621a32674ec88"
-	actual = utils.ComputeBatchID(
-		common.HexToHash("0xfaef7761204f43c4ab2528a65fcc7ec2108709e5ebb646bdce9ce3c8862d3f25"),
-		common.HexToHash("0xe3abef08cce4b8a0dcc6b7e4dd11f32863007a86f46c1d136682b5d77bdf0f7a"),
-		big.NewInt(77233900))
-	assert.Equal(t, expected, actual)
-}

common/utils/flags.go

@@ -12,6 +12,9 @@ var (
 		&LogFileFlag,
 		&LogJSONFormat,
 		&LogDebugFlag,
+		&MetricsEnabled,
+		&MetricsAddr,
+		&MetricsPort,
 	}
 	// ConfigFileFlag load json type config file.
 	ConfigFileFlag = cli.StringFlag{
@@ -42,4 +45,25 @@ var (
 		Name:  "log.debug",
 		Usage: "Prepends log messages with call-site location (file and line number)",
 	}
+	// MetricsEnabled enable metrics collection and reporting
+	MetricsEnabled = cli.BoolFlag{
+		Name:     "metrics",
+		Usage:    "Enable metrics collection and reporting",
+		Category: "METRICS",
+		Value:    false,
+	}
+	// MetricsAddr is listening address of Metrics reporting server
+	MetricsAddr = cli.StringFlag{
+		Name:     "metrics.addr",
+		Usage:    "Metrics reporting server listening address",
+		Category: "METRICS",
+		Value:    "0.0.0.0",
+	}
+	// MetricsPort is listening port of Metrics reporting server
+	MetricsPort = cli.IntFlag{
+		Name:     "metrics.port",
+		Usage:    "Metrics reporting server listening port",
+		Category: "METRICS",
+		Value:    6060,
+	}
 )

common/utils/rpc.go

@@ -38,10 +38,14 @@ func StartHTTPEndpoint(endpoint string, apis []rpc.API) (*http.Server, net.Addr,
 }
 
 // StartWSEndpoint starts the WS RPC endpoint.
-func StartWSEndpoint(endpoint string, apis []rpc.API) (*http.Server, net.Addr, error) {
+func StartWSEndpoint(endpoint string, apis []rpc.API, compressionLevel int) (*http.Server, net.Addr, error) {
 	handler, addr, err := StartHTTPEndpoint(endpoint, apis)
 	if err == nil {
 		srv := (handler.Handler).(*rpc.Server)
+		err = srv.SetCompressionLevel(compressionLevel)
+		if err != nil {
+			log.Error("failed to set ws compression level", "compression level", compressionLevel, "err", err)
+		}
 		handler.Handler = srv.WebsocketHandler(nil)
 	}
 	return handler, addr, err

common/utils/rpc_test.go

@@ -1,6 +1,7 @@
 package utils
 
 import (
+	"compress/flate"
 	"context"
 	"testing"
 
@@ -59,7 +60,7 @@ func TestStartWSEndpoint(t *testing.T) {
 			Namespace: "test",
 			Service:   new(testService),
 		},
-	})
+	}, flate.NoCompression)
 	assert.NoError(t, err)
 	defer handler.Shutdown(context.Background())
 

common/version/version.go

@@ -5,7 +5,7 @@ import (
 	"runtime/debug"
 )
 
-var tag = "prealpha-v11.14"
+var tag = "alpha-v1.11"
 
 var commit = func() string {
 	if info, ok := debug.ReadBuildInfo(); ok {

contracts/docs/apis/L1ERC1155Gateway.md

@@ -13,7 +13,7 @@ The `L1ERC1155Gateway` is used to deposit ERC1155 compatible NFT in layer 1 and
 ### batchDepositERC1155
 
 ```solidity
-function batchDepositERC1155(address _token, uint256[] _tokenIds, uint256[] _amounts, uint256 _gasLimit) external nonpayable
+function batchDepositERC1155(address _token, uint256[] _tokenIds, uint256[] _amounts, uint256 _gasLimit) external payable
 ```
 
 Deposit a list of some ERC1155 NFT to caller's account on layer 2.
@@ -32,7 +32,7 @@ Deposit a list of some ERC1155 NFT to caller's account on layer 2.
 ### batchDepositERC1155
 
 ```solidity
-function batchDepositERC1155(address _token, address _to, uint256[] _tokenIds, uint256[] _amounts, uint256 _gasLimit) external nonpayable
+function batchDepositERC1155(address _token, address _to, uint256[] _tokenIds, uint256[] _amounts, uint256 _gasLimit) external payable
 ```
 
 Deposit a list of some ERC1155 NFT to a recipient's account on layer 2.
@@ -69,7 +69,7 @@ The address of corresponding L1/L2 Gateway contract.
 ### depositERC1155
 
 ```solidity
-function depositERC1155(address _token, address _to, uint256 _tokenId, uint256 _amount, uint256 _gasLimit) external nonpayable
+function depositERC1155(address _token, address _to, uint256 _tokenId, uint256 _amount, uint256 _gasLimit) external payable
 ```
 
 Deposit some ERC1155 NFT to a recipient's account on layer 2.
@@ -89,7 +89,7 @@ Deposit some ERC1155 NFT to a recipient's account on layer 2.
 ### depositERC1155
 
 ```solidity
-function depositERC1155(address _token, uint256 _tokenId, uint256 _amount, uint256 _gasLimit) external nonpayable
+function depositERC1155(address _token, uint256 _tokenId, uint256 _amount, uint256 _gasLimit) external payable
 ```
 
 Deposit some ERC1155 NFT to caller's account on layer 2.
@@ -126,17 +126,6 @@ Complete ERC1155 batch withdraw from layer 2 to layer 1 and send fund to recipie
 | _tokenIds | uint256[] | The list of token ids to withdraw. |
 | _amounts | uint256[] | The list of corresponding number of token to withdraw. |
 
-### finalizeDropMessage
-
-```solidity
-function finalizeDropMessage() external payable
-```
-
-
-
-
-
-
 ### finalizeWithdrawERC1155
 
 ```solidity
@@ -164,7 +153,7 @@ Complete ERC1155 withdraw from layer 2 to layer 1 and send fund to recipient&#39
 function initialize(address _counterpart, address _messenger) external nonpayable
 ```
 
-
+Initialize the storage of L1ERC1155Gateway.
 
 
 
@@ -172,8 +161,8 @@ function initialize(address _counterpart, address _messenger) external nonpayabl
 
 | Name | Type | Description |
 |---|---|---|
-| _counterpart | address | undefined |
-| _messenger | address | undefined |
+| _counterpart | address | The address of L2ERC1155Gateway in L2. |
+| _messenger | address | The address of L1ScrollMessenger. |
 
 ### messenger
 
@@ -181,7 +170,7 @@ function initialize(address _counterpart, address _messenger) external nonpayabl
 function messenger() external view returns (address)
 ```
 
-The address of L1ScrollMessenger/L2ScrollMessenger contract.
+The address of corresponding L1ScrollMessenger/L2ScrollMessenger contract.
 
 
 

contracts/docs/apis/L1ERC721Gateway.md

@@ -13,7 +13,7 @@ The `L1ERC721Gateway` is used to deposit ERC721 compatible NFT in layer 1 and fi
 ### batchDepositERC721
 
 ```solidity
-function batchDepositERC721(address _token, address _to, uint256[] _tokenIds, uint256 _gasLimit) external nonpayable
+function batchDepositERC721(address _token, address _to, uint256[] _tokenIds, uint256 _gasLimit) external payable
 ```
 
 Deposit a list of some ERC721 NFT to a recipient's account on layer 2.
@@ -32,7 +32,7 @@ Deposit a list of some ERC721 NFT to a recipient's account on layer 2.
 ### batchDepositERC721
 
 ```solidity
-function batchDepositERC721(address _token, uint256[] _tokenIds, uint256 _gasLimit) external nonpayable
+function batchDepositERC721(address _token, uint256[] _tokenIds, uint256 _gasLimit) external payable
 ```
 
 Deposit a list of some ERC721 NFT to caller's account on layer 2.
@@ -67,7 +67,7 @@ The address of corresponding L1/L2 Gateway contract.
 ### depositERC721
 
 ```solidity
-function depositERC721(address _token, address _to, uint256 _tokenId, uint256 _gasLimit) external nonpayable
+function depositERC721(address _token, address _to, uint256 _tokenId, uint256 _gasLimit) external payable
 ```
 
 Deposit some ERC721 NFT to a recipient's account on layer 2.
@@ -86,7 +86,7 @@ Deposit some ERC721 NFT to a recipient's account on layer 2.
 ### depositERC721
 
 ```solidity
-function depositERC721(address _token, uint256 _tokenId, uint256 _gasLimit) external nonpayable
+function depositERC721(address _token, uint256 _tokenId, uint256 _gasLimit) external payable
 ```
 
 Deposit some ERC721 NFT to caller's account on layer 2.
@@ -121,17 +121,6 @@ Complete ERC721 batch withdraw from layer 2 to layer 1 and send NFT to recipient
 | _to | address | The address of recipient in layer 1 to receive the token. |
 | _tokenIds | uint256[] | The list of token ids to withdraw. |
 
-### finalizeDropMessage
-
-```solidity
-function finalizeDropMessage() external payable
-```
-
-
-
-
-
-
 ### finalizeWithdrawERC721
 
 ```solidity
@@ -158,7 +147,7 @@ Complete ERC721 withdraw from layer 2 to layer 1 and send NFT to recipient's
 function initialize(address _counterpart, address _messenger) external nonpayable
 ```
 
-
+Initialize the storage of L1ERC721Gateway.
 
 
 
@@ -166,8 +155,8 @@ function initialize(address _counterpart, address _messenger) external nonpayabl
 
 | Name | Type | Description |
 |---|---|---|
-| _counterpart | address | undefined |
-| _messenger | address | undefined |
+| _counterpart | address | The address of L2ERC721Gateway in L2. |
+| _messenger | address | The address of L1ScrollMessenger. |
 
 ### messenger
 
@@ -175,7 +164,7 @@ function initialize(address _counterpart, address _messenger) external nonpayabl
 function messenger() external view returns (address)
 ```
 
-The address of L1ScrollMessenger/L2ScrollMessenger contract.
+The address of corresponding L1ScrollMessenger/L2ScrollMessenger contract.
 
 
 

contracts/docs/apis/L1GatewayRouter.md

@@ -26,23 +26,6 @@ Mapping from ERC20 token address to corresponding L1ERC20Gateway.
 |---|---|---|
 | _0 | address | undefined |
 
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | address | undefined |
-
-### counterpart
-
-```solidity
-function counterpart() external view returns (address)
-```
-
-The address of corresponding L1/L2 Gateway contract.
-
-
-
-
 #### Returns
 
 | Name | Type | Description |
@@ -126,10 +109,10 @@ Deposit some token to a recipient's account on L2 and call.
 ### depositETH
 
 ```solidity
-function depositETH(address _to, uint256 _gasLimit) external payable
+function depositETH(uint256 _amount, uint256 _gasLimit) external payable
 ```
 
-Deposit ETH to recipient's account in L2.
+Deposit ETH to caller's account in L2.
 
 
 
@@ -137,16 +120,16 @@ Deposit ETH to recipient's account in L2.
 
 | Name | Type | Description |
 |---|---|---|
-| _to | address | The address of recipient's account on L2. |
-| _gasLimit | uint256 | Gas limit required to complete the deposit on L2. |
+| _amount | uint256 | undefined |
+| _gasLimit | uint256 | undefined |
 
 ### depositETH
 
 ```solidity
-function depositETH(uint256 _gasLimit) external payable
+function depositETH(address _to, uint256 _amount, uint256 _gasLimit) external payable
 ```
 
-Deposit ETH to call's account in L2.
+Deposit ETH to some recipient's account in L2.
 
 
 
@@ -154,18 +137,45 @@ Deposit ETH to call's account in L2.
 
 | Name | Type | Description |
 |---|---|---|
-| _gasLimit | uint256 | Gas limit required to complete the deposit on L2. |
+| _to | address | undefined |
+| _amount | uint256 | undefined |
+| _gasLimit | uint256 | undefined |
 
-### finalizeDropMessage
+### depositETHAndCall
 
 ```solidity
-function finalizeDropMessage() external payable
+function depositETHAndCall(address _to, uint256 _amount, bytes _data, uint256 _gasLimit) external payable
 ```
 
+Deposit ETH to some recipient's account in L2 and call the target contract.
+
+
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _to | address | undefined |
+| _amount | uint256 | undefined |
+| _data | bytes | undefined |
+| _gasLimit | uint256 | undefined |
+
+### ethGateway
+
+```solidity
+function ethGateway() external view returns (address)
+```
+
+The address of L1ETHGateway.
 
 
 
 
+#### Returns
+
+| Name | Type | Description |
+|---|---|---|
+| _0 | address | undefined |
 
 ### finalizeWithdrawERC20
 
@@ -191,21 +201,21 @@ Complete ERC20 withdraw from L2 to L1 and send fund to recipient's account i
 ### finalizeWithdrawETH
 
 ```solidity
-function finalizeWithdrawETH(address _from, address _to, uint256 _amount, bytes _data) external payable
+function finalizeWithdrawETH(address, address, uint256, bytes) external payable
 ```
 
 Complete ETH withdraw from L2 to L1 and send fund to recipient's account in L1.
 
-*This function should only be called by L1ScrollMessenger.      This function should also only be called by L2GatewayRouter in L2.*
+*This function should only be called by L1ScrollMessenger.      This function should also only be called by L1ETHGateway in L2.*
 
 #### Parameters
 
 | Name | Type | Description |
 |---|---|---|
-| _from | address | The address of account who withdraw ETH in L2. |
-| _to | address | The address of recipient in L1 to receive ETH. |
-| _amount | uint256 | The amount of ETH to withdraw. |
-| _data | bytes | Optional data to forward to recipient's account. |
+| _0 | address | undefined |
+| _1 | address | undefined |
+| _2 | uint256 | undefined |
+| _3 | bytes | undefined |
 
 ### getERC20Gateway
 
@@ -254,10 +264,10 @@ Return the corresponding l2 token address given l1 token address.
 ### initialize
 
 ```solidity
-function initialize(address _defaultERC20Gateway, address _counterpart, address _messenger) external nonpayable
+function initialize(address _ethGateway, address _defaultERC20Gateway) external nonpayable
 ```
 
-
+Initialize the storage of L1GatewayRouter.
 
 
 
@@ -265,26 +275,8 @@ function initialize(address _defaultERC20Gateway, address _counterpart, address
 
 | Name | Type | Description |
 |---|---|---|
-| _defaultERC20Gateway | address | undefined |
-| _counterpart | address | undefined |
-| _messenger | address | undefined |
-
-### messenger
-
-```solidity
-function messenger() external view returns (address)
-```
-
-The address of L1ScrollMessenger/L2ScrollMessenger contract.
-
-
-
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | address | undefined |
+| _ethGateway | address | The address of L1ETHGateway contract. |
+| _defaultERC20Gateway | address | The address of default ERC20 Gateway contract. |
 
 ### owner
 
@@ -314,23 +306,6 @@ function renounceOwnership() external nonpayable
 *Leaves the contract without owner. It will not be possible to call `onlyOwner` functions anymore. Can only be called by the current owner. NOTE: Renouncing ownership will leave the contract without an owner, thereby removing any functionality that is only available to the owner.*
 
 
-### router
-
-```solidity
-function router() external view returns (address)
-```
-
-The address of L1GatewayRouter/L2GatewayRouter contract.
-
-
-
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | address | undefined |
-
 ### setDefaultERC20Gateway
 
 ```solidity
@@ -364,6 +339,22 @@ Update the mapping from token address to gateway address.
 | _tokens | address[] | The list of addresses of tokens to update. |
 | _gateways | address[] | The list of addresses of gateways to update. |
 
+### setETHGateway
+
+```solidity
+function setETHGateway(address _ethGateway) external nonpayable
+```
+
+Update the address of ETH gateway contract.
+
+*This function should only be called by contract owner.*
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _ethGateway | address | The address to update. |
+
 ### transferOwnership
 
 ```solidity
@@ -387,10 +378,10 @@ function transferOwnership(address newOwner) external nonpayable
 ### DepositERC20
 
 ```solidity
-event DepositERC20(address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256 _amount, bytes _data)
+event DepositERC20(address indexed l1Token, address indexed l2Token, address indexed from, address to, uint256 amount, bytes data)
 ```
 
-
+Emitted when someone deposit ERC20 token from L1 to L2.
 
 
 
@@ -398,20 +389,20 @@ event DepositERC20(address indexed _l1Token, address indexed _l2Token, address i
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token `indexed` | address | undefined |
-| _l2Token `indexed` | address | undefined |
-| _from `indexed` | address | undefined |
-| _to  | address | undefined |
-| _amount  | uint256 | undefined |
-| _data  | bytes | undefined |
+| l1Token `indexed` | address | undefined |
+| l2Token `indexed` | address | undefined |
+| from `indexed` | address | undefined |
+| to  | address | undefined |
+| amount  | uint256 | undefined |
+| data  | bytes | undefined |
 
 ### DepositETH
 
 ```solidity
-event DepositETH(address indexed _from, address indexed _to, uint256 _amount, bytes _data)
+event DepositETH(address indexed from, address indexed to, uint256 amount, bytes data)
 ```
 
-
+Emitted when someone deposit ETH from L1 to L2.
 
 
 
@@ -419,18 +410,18 @@ event DepositETH(address indexed _from, address indexed _to, uint256 _amount, by
 
 | Name | Type | Description |
 |---|---|---|
-| _from `indexed` | address | undefined |
-| _to `indexed` | address | undefined |
-| _amount  | uint256 | undefined |
-| _data  | bytes | undefined |
+| from `indexed` | address | undefined |
+| to `indexed` | address | undefined |
+| amount  | uint256 | undefined |
+| data  | bytes | undefined |
 
 ### FinalizeWithdrawERC20
 
 ```solidity
-event FinalizeWithdrawERC20(address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256 _amount, bytes _data)
+event FinalizeWithdrawERC20(address indexed l1Token, address indexed l2Token, address indexed from, address to, uint256 amount, bytes data)
 ```
 
-
+Emitted when ERC20 token is withdrawn from L2 to L1 and transfer to recipient.
 
 
 
@@ -438,20 +429,20 @@ event FinalizeWithdrawERC20(address indexed _l1Token, address indexed _l2Token,
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token `indexed` | address | undefined |
-| _l2Token `indexed` | address | undefined |
-| _from `indexed` | address | undefined |
-| _to  | address | undefined |
-| _amount  | uint256 | undefined |
-| _data  | bytes | undefined |
+| l1Token `indexed` | address | undefined |
+| l2Token `indexed` | address | undefined |
+| from `indexed` | address | undefined |
+| to  | address | undefined |
+| amount  | uint256 | undefined |
+| data  | bytes | undefined |
 
 ### FinalizeWithdrawETH
 
 ```solidity
-event FinalizeWithdrawETH(address indexed _from, address indexed _to, uint256 _amount, bytes _data)
+event FinalizeWithdrawETH(address indexed from, address indexed to, uint256 amount, bytes data)
 ```
 
-
+Emitted when ETH is withdrawn from L2 to L1 and transfer to recipient.
 
 
 
@@ -459,10 +450,10 @@ event FinalizeWithdrawETH(address indexed _from, address indexed _to, uint256 _a
 
 | Name | Type | Description |
 |---|---|---|
-| _from `indexed` | address | undefined |
-| _to `indexed` | address | undefined |
-| _amount  | uint256 | undefined |
-| _data  | bytes | undefined |
+| from `indexed` | address | undefined |
+| to `indexed` | address | undefined |
+| amount  | uint256 | undefined |
+| data  | bytes | undefined |
 
 ### OwnershipTransferred
 
@@ -484,10 +475,10 @@ event OwnershipTransferred(address indexed previousOwner, address indexed newOwn
 ### SetDefaultERC20Gateway
 
 ```solidity
-event SetDefaultERC20Gateway(address indexed _defaultERC20Gateway)
+event SetDefaultERC20Gateway(address indexed defaultERC20Gateway)
 ```
 
-
+Emitted when the address of default ERC20 Gateway is updated.
 
 
 
@@ -495,15 +486,15 @@ event SetDefaultERC20Gateway(address indexed _defaultERC20Gateway)
 
 | Name | Type | Description |
 |---|---|---|
-| _defaultERC20Gateway `indexed` | address | undefined |
+| defaultERC20Gateway `indexed` | address | undefined |
 
 ### SetERC20Gateway
 
 ```solidity
-event SetERC20Gateway(address indexed _token, address indexed _gateway)
+event SetERC20Gateway(address indexed token, address indexed gateway)
 ```
 
-
+Emitted when the `gateway` for `token` is updated.
 
 
 
@@ -511,8 +502,24 @@ event SetERC20Gateway(address indexed _token, address indexed _gateway)
 
 | Name | Type | Description |
 |---|---|---|
-| _token `indexed` | address | undefined |
-| _gateway `indexed` | address | undefined |
+| token `indexed` | address | undefined |
+| gateway `indexed` | address | undefined |
+
+### SetETHGateway
+
+```solidity
+event SetETHGateway(address indexed ethGateway)
+```
+
+Emitted when the address of ETH Gateway is updated.
+
+
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| ethGateway `indexed` | address | undefined |
 
 
 

contracts/docs/apis/L1ScrollMessenger.md

@@ -10,13 +10,13 @@ The `L1ScrollMessenger` contract can: 1. send messages from layer 1 to layer 2;
 
 ## Methods
 
-### dropDelayDuration
+### counterpart
 
 ```solidity
-function dropDelayDuration() external view returns (uint256)
+function counterpart() external view returns (address)
 ```
 
-The amount of seconds needed to wait if we want to drop message.
+The address of counterpart ScrollMessenger contract in L1/L2.
 
 
 
@@ -25,38 +25,15 @@ The amount of seconds needed to wait if we want to drop message.
 
 | Name | Type | Description |
 |---|---|---|
-| _0 | uint256 | undefined |
+| _0 | address | undefined |
 
-### dropMessage
+### feeVault
 
 ```solidity
-function dropMessage(address _from, address _to, uint256 _value, uint256 _fee, uint256 _deadline, uint256 _nonce, bytes _message, uint256 _gasLimit) external nonpayable
+function feeVault() external view returns (address)
 ```
 
-
-
-
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _from | address | undefined |
-| _to | address | undefined |
-| _value | uint256 | undefined |
-| _fee | uint256 | undefined |
-| _deadline | uint256 | undefined |
-| _nonce | uint256 | undefined |
-| _message | bytes | undefined |
-| _gasLimit | uint256 | undefined |
-
-### gasOracle
-
-```solidity
-function gasOracle() external view returns (address)
-```
-
-The gas oracle used to estimate transaction fee on layer 2.
+The address of fee vault, collecting cross domain messaging fee.
 
 
 
@@ -70,10 +47,10 @@ The gas oracle used to estimate transaction fee on layer 2.
 ### initialize
 
 ```solidity
-function initialize(address _rollup) external nonpayable
+function initialize(address _counterpart, address _feeVault, address _rollup, address _messageQueue) external nonpayable
 ```
 
-
+Initialize the storage of L1ScrollMessenger.
 
 
 
@@ -81,56 +58,15 @@ function initialize(address _rollup) external nonpayable
 
 | Name | Type | Description |
 |---|---|---|
-| _rollup | address | undefined |
+| _counterpart | address | The address of L2ScrollMessenger contract in L2. |
+| _feeVault | address | The address of fee vault, which will be used to collect relayer fee. |
+| _rollup | address | The address of ScrollChain contract. |
+| _messageQueue | address | The address of L1MessageQueue contract. |
 
-### isMessageDropped
+### isL1MessageRelayed
 
 ```solidity
-function isMessageDropped(bytes32) external view returns (bool)
-```
-
-Mapping from message hash to drop status.
-
-
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | bytes32 | undefined |
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | bool | undefined |
-
-### isMessageExecuted
-
-```solidity
-function isMessageExecuted(bytes32) external view returns (bool)
-```
-
-Mapping from message hash to execution status.
-
-
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | bytes32 | undefined |
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | bool | undefined |
-
-### isMessageRelayed
-
-```solidity
-function isMessageRelayed(bytes32) external view returns (bool)
+function isL1MessageRelayed(bytes32) external view returns (bool)
 ```
 
 Mapping from relay id to relay status.
@@ -149,6 +85,67 @@ Mapping from relay id to relay status.
 |---|---|---|
 | _0 | bool | undefined |
 
+### isL1MessageSent
+
+```solidity
+function isL1MessageSent(bytes32) external view returns (bool)
+```
+
+Mapping from L1 message hash to sent status.
+
+
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _0 | bytes32 | undefined |
+
+#### Returns
+
+| Name | Type | Description |
+|---|---|---|
+| _0 | bool | undefined |
+
+### isL2MessageExecuted
+
+```solidity
+function isL2MessageExecuted(bytes32) external view returns (bool)
+```
+
+Mapping from L2 message hash to a boolean value indicating if the message has been successfully executed.
+
+
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _0 | bytes32 | undefined |
+
+#### Returns
+
+| Name | Type | Description |
+|---|---|---|
+| _0 | bool | undefined |
+
+### messageQueue
+
+```solidity
+function messageQueue() external view returns (address)
+```
+
+The address of L1MessageQueue contract.
+
+
+
+
+#### Returns
+
+| Name | Type | Description |
+|---|---|---|
+| _0 | address | undefined |
+
 ### owner
 
 ```solidity
@@ -197,7 +194,7 @@ function paused() external view returns (bool)
 ### relayMessageWithProof
 
 ```solidity
-function relayMessageWithProof(address _from, address _to, uint256 _value, uint256 _fee, uint256 _deadline, uint256 _nonce, bytes _message, IL1ScrollMessenger.L2MessageProof _proof) external nonpayable
+function relayMessageWithProof(address _from, address _to, uint256 _value, uint256 _nonce, bytes _message, IL1ScrollMessenger.L2MessageProof _proof) external nonpayable
 ```
 
 
@@ -211,8 +208,6 @@ function relayMessageWithProof(address _from, address _to, uint256 _value, uint2
 | _from | address | undefined |
 | _to | address | undefined |
 | _value | uint256 | undefined |
-| _fee | uint256 | undefined |
-| _deadline | uint256 | undefined |
 | _nonce | uint256 | undefined |
 | _message | bytes | undefined |
 | _proof | IL1ScrollMessenger.L2MessageProof | undefined |
@@ -231,7 +226,7 @@ function renounceOwnership() external nonpayable
 ### replayMessage
 
 ```solidity
-function replayMessage(address _from, address _to, uint256 _value, uint256 _fee, uint256 _deadline, bytes _message, uint256 _queueIndex, uint32 _oldGasLimit, uint32 _newGasLimit) external nonpayable
+function replayMessage(address _from, address _to, uint256 _value, uint256 _queueIndex, bytes _message, uint32 _oldGasLimit, uint32 _newGasLimit) external nonpayable
 ```
 
 Replay an exsisting message.
@@ -242,15 +237,13 @@ Replay an exsisting message.
 
 | Name | Type | Description |
 |---|---|---|
-| _from | address | The address of the sender of the message. |
-| _to | address | The address of the recipient of the message. |
-| _value | uint256 | The msg.value passed to the message call. |
-| _fee | uint256 | The amount of fee in ETH to charge. |
-| _deadline | uint256 | The deadline of the message. |
-| _message | bytes | The content of the message. |
-| _queueIndex | uint256 | CTC Queue index for the message to replay. |
-| _oldGasLimit | uint32 | Original gas limit used to send the message. |
-| _newGasLimit | uint32 | New gas limit to be used for this message. |
+| _from | address | undefined |
+| _to | address | undefined |
+| _value | uint256 | undefined |
+| _queueIndex | uint256 | undefined |
+| _message | bytes | undefined |
+| _oldGasLimit | uint32 | undefined |
+| _newGasLimit | uint32 | undefined |
 
 ### rollup
 
@@ -272,21 +265,21 @@ The address of Rollup contract.
 ### sendMessage
 
 ```solidity
-function sendMessage(address _to, uint256 _fee, bytes _message, uint256 _gasLimit) external payable
+function sendMessage(address _to, uint256 _value, bytes _message, uint256 _gasLimit) external payable
 ```
 
-Send cross chain message (L1 => L2 or L2 => L1)
+Send cross chain message from L1 to L2 or L2 to L1.
+
 
-*Currently, only privileged accounts can call this function for safty. And adding an extra `_fee` variable make it more easy to upgrade to decentralized version.*
 
 #### Parameters
 
 | Name | Type | Description |
 |---|---|---|
-| _to | address | The address of account who recieve the message. |
-| _fee | uint256 | The amount of fee in Ether the caller would like to pay to the relayer. |
-| _message | bytes | The content of the message. |
-| _gasLimit | uint256 | Unused, but included for potential forward compatibility considerations. |
+| _to | address | undefined |
+| _value | uint256 | undefined |
+| _message | bytes | undefined |
+| _gasLimit | uint256 | undefined |
 
 ### transferOwnership
 
@@ -304,13 +297,13 @@ function transferOwnership(address newOwner) external nonpayable
 |---|---|---|
 | newOwner | address | undefined |
 
-### updateDropDelayDuration
+### updateFeeVault
 
 ```solidity
-function updateDropDelayDuration(uint256 _newDuration) external nonpayable
+function updateFeeVault(address _newFeeVault) external nonpayable
 ```
 
-Update the drop delay duration.
+Update fee vault contract.
 
 *This function can only called by contract owner.*
 
@@ -318,23 +311,7 @@ Update the drop delay duration.
 
 | Name | Type | Description |
 |---|---|---|
-| _newDuration | uint256 | The new delay duration to update. |
-
-### updateGasOracle
-
-```solidity
-function updateGasOracle(address _newGasOracle) external nonpayable
-```
-
-Update the address of gas oracle.
-
-*This function can only called by contract owner.*
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _newGasOracle | address | The address to update. |
+| _newFeeVault | address | The address of new fee vault contract. |
 
 ### updateWhitelist
 
@@ -393,10 +370,10 @@ See {IScrollMessenger-xDomainMessageSender}
 ### FailedRelayedMessage
 
 ```solidity
-event FailedRelayedMessage(bytes32 indexed msgHash)
+event FailedRelayedMessage(bytes32 indexed messageHash)
 ```
 
-
+Emitted when a cross domain message is failed to relay.
 
 
 
@@ -404,23 +381,7 @@ event FailedRelayedMessage(bytes32 indexed msgHash)
 
 | Name | Type | Description |
 |---|---|---|
-| msgHash `indexed` | bytes32 | undefined |
-
-### MessageDropped
-
-```solidity
-event MessageDropped(bytes32 indexed msgHash)
-```
-
-
-
-
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| msgHash `indexed` | bytes32 | undefined |
+| messageHash `indexed` | bytes32 | undefined |
 
 ### OwnershipTransferred
 
@@ -458,10 +419,10 @@ event Paused(address account)
 ### RelayedMessage
 
 ```solidity
-event RelayedMessage(bytes32 indexed msgHash)
+event RelayedMessage(bytes32 indexed messageHash)
 ```
 
-
+Emitted when a cross domain message is relayed successfully.
 
 
 
@@ -469,15 +430,15 @@ event RelayedMessage(bytes32 indexed msgHash)
 
 | Name | Type | Description |
 |---|---|---|
-| msgHash `indexed` | bytes32 | undefined |
+| messageHash `indexed` | bytes32 | undefined |
 
 ### SentMessage
 
 ```solidity
-event SentMessage(address indexed target, address sender, uint256 value, uint256 fee, uint256 deadline, bytes message, uint256 messageNonce, uint256 gasLimit)
+event SentMessage(address indexed sender, address indexed target, uint256 value, uint256 messageNonce, uint256 gasLimit, bytes message)
 ```
 
-
+Emitted when a cross domain message is sent.
 
 
 
@@ -485,14 +446,12 @@ event SentMessage(address indexed target, address sender, uint256 value, uint256
 
 | Name | Type | Description |
 |---|---|---|
+| sender `indexed` | address | undefined |
 | target `indexed` | address | undefined |
-| sender  | address | undefined |
 | value  | uint256 | undefined |
-| fee  | uint256 | undefined |
-| deadline  | uint256 | undefined |
-| message  | bytes | undefined |
 | messageNonce  | uint256 | undefined |
 | gasLimit  | uint256 | undefined |
+| message  | bytes | undefined |
 
 ### Unpaused
 
@@ -510,13 +469,13 @@ event Unpaused(address account)
 |---|---|---|
 | account  | address | undefined |
 
-### UpdateDropDelayDuration
+### UpdateFeeVault
 
 ```solidity
-event UpdateDropDelayDuration(uint256 _oldDuration, uint256 _newDuration)
+event UpdateFeeVault(address _oldFeeVault, address _newFeeVault)
 ```
 
-Emitted when owner updates drop delay duration
+Emitted when owner updates fee vault contract.
 
 
 
@@ -524,25 +483,8 @@ Emitted when owner updates drop delay duration
 
 | Name | Type | Description |
 |---|---|---|
-| _oldDuration  | uint256 | undefined |
-| _newDuration  | uint256 | undefined |
-
-### UpdateGasOracle
-
-```solidity
-event UpdateGasOracle(address _oldGasOracle, address _newGasOracle)
-```
-
-Emitted when owner updates gas oracle contract.
-
-
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _oldGasOracle  | address | undefined |
-| _newGasOracle  | address | undefined |
+| _oldFeeVault  | address | undefined |
+| _newFeeVault  | address | undefined |
 
 ### UpdateWhitelist
 

contracts/docs/apis/L1StandardERC20Gateway.md

@@ -84,17 +84,6 @@ Deposit some token to a recipient's account on L2 and call.
 | _data | bytes | Optional data to forward to recipient's account. |
 | _gasLimit | uint256 | Gas limit required to complete the deposit on L2. |
 
-### finalizeDropMessage
-
-```solidity
-function finalizeDropMessage() external payable
-```
-
-
-
-
-
-
 ### finalizeWithdrawERC20
 
 ```solidity
@@ -144,7 +133,7 @@ Return the corresponding l2 token address given l1 token address.
 function initialize(address _counterpart, address _router, address _messenger, address _l2TokenImplementation, address _l2TokenFactory) external nonpayable
 ```
 
-
+Initialize the storage of L1StandardERC20Gateway.
 
 
 
@@ -152,11 +141,11 @@ function initialize(address _counterpart, address _router, address _messenger, a
 
 | Name | Type | Description |
 |---|---|---|
-| _counterpart | address | undefined |
-| _router | address | undefined |
-| _messenger | address | undefined |
-| _l2TokenImplementation | address | undefined |
-| _l2TokenFactory | address | undefined |
+| _counterpart | address | The address of L2StandardERC20Gateway in L2. |
+| _router | address | The address of L1GatewayRouter. |
+| _messenger | address | The address of L1ScrollMessenger. |
+| _l2TokenImplementation | address | The address of ScrollStandardERC20 implementation in L2. |
+| _l2TokenFactory | address | The address of ScrollStandardERC20Factory contract in L2. |
 
 ### l2TokenFactory
 
@@ -198,7 +187,7 @@ The address of ScrollStandardERC20 implementation in L2.
 function messenger() external view returns (address)
 ```
 
-The address of L1ScrollMessenger/L2ScrollMessenger contract.
+The address of corresponding L1ScrollMessenger/L2ScrollMessenger contract.
 
 
 
@@ -233,10 +222,10 @@ The address of L1GatewayRouter/L2GatewayRouter contract.
 ### DepositERC20
 
 ```solidity
-event DepositERC20(address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256 _amount, bytes _data)
+event DepositERC20(address indexed l1Token, address indexed l2Token, address indexed from, address to, uint256 amount, bytes data)
 ```
 
-
+Emitted when someone deposit ERC20 token from L1 to L2.
 
 
 
@@ -244,20 +233,20 @@ event DepositERC20(address indexed _l1Token, address indexed _l2Token, address i
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token `indexed` | address | undefined |
-| _l2Token `indexed` | address | undefined |
-| _from `indexed` | address | undefined |
-| _to  | address | undefined |
-| _amount  | uint256 | undefined |
-| _data  | bytes | undefined |
+| l1Token `indexed` | address | undefined |
+| l2Token `indexed` | address | undefined |
+| from `indexed` | address | undefined |
+| to  | address | undefined |
+| amount  | uint256 | undefined |
+| data  | bytes | undefined |
 
 ### FinalizeWithdrawERC20
 
 ```solidity
-event FinalizeWithdrawERC20(address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256 _amount, bytes _data)
+event FinalizeWithdrawERC20(address indexed l1Token, address indexed l2Token, address indexed from, address to, uint256 amount, bytes data)
 ```
 
-
+Emitted when ERC20 token is withdrawn from L2 to L1 and transfer to recipient.
 
 
 
@@ -265,12 +254,12 @@ event FinalizeWithdrawERC20(address indexed _l1Token, address indexed _l2Token,
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token `indexed` | address | undefined |
-| _l2Token `indexed` | address | undefined |
-| _from `indexed` | address | undefined |
-| _to  | address | undefined |
-| _amount  | uint256 | undefined |
-| _data  | bytes | undefined |
+| l1Token `indexed` | address | undefined |
+| l2Token `indexed` | address | undefined |
+| from `indexed` | address | undefined |
+| to  | address | undefined |
+| amount  | uint256 | undefined |
+| data  | bytes | undefined |
 
 
 

contracts/docs/apis/L1WETHGateway.md

@@ -101,17 +101,6 @@ Deposit some token to a recipient's account on L2 and call.
 | _data | bytes | Optional data to forward to recipient's account. |
 | _gasLimit | uint256 | Gas limit required to complete the deposit on L2. |
 
-### finalizeDropMessage
-
-```solidity
-function finalizeDropMessage() external payable
-```
-
-
-
-
-
-
 ### finalizeWithdrawERC20
 
 ```solidity
@@ -158,10 +147,10 @@ Return the corresponding l2 token address given l1 token address.
 ### initialize
 
 ```solidity
-function initialize(address _counterpart, address _router, address _messenger, address _WETH, address _l2WETH) external nonpayable
+function initialize(address _counterpart, address _router, address _messenger) external nonpayable
 ```
 
-
+Initialize the storage of L1WETHGateway.
 
 
 
@@ -169,11 +158,9 @@ function initialize(address _counterpart, address _router, address _messenger, a
 
 | Name | Type | Description |
 |---|---|---|
-| _counterpart | address | undefined |
-| _router | address | undefined |
-| _messenger | address | undefined |
-| _WETH | address | undefined |
-| _l2WETH | address | undefined |
+| _counterpart | address | The address of L2ETHGateway in L2. |
+| _router | address | The address of L1GatewayRouter. |
+| _messenger | address | The address of L1ScrollMessenger. |
 
 ### l2WETH
 
@@ -198,7 +185,7 @@ The address of L2 WETH address.
 function messenger() external view returns (address)
 ```
 
-The address of L1ScrollMessenger/L2ScrollMessenger contract.
+The address of corresponding L1ScrollMessenger/L2ScrollMessenger contract.
 
 
 
@@ -233,10 +220,10 @@ The address of L1GatewayRouter/L2GatewayRouter contract.
 ### DepositERC20
 
 ```solidity
-event DepositERC20(address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256 _amount, bytes _data)
+event DepositERC20(address indexed l1Token, address indexed l2Token, address indexed from, address to, uint256 amount, bytes data)
 ```
 
-
+Emitted when someone deposit ERC20 token from L1 to L2.
 
 
 
@@ -244,20 +231,20 @@ event DepositERC20(address indexed _l1Token, address indexed _l2Token, address i
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token `indexed` | address | undefined |
-| _l2Token `indexed` | address | undefined |
-| _from `indexed` | address | undefined |
-| _to  | address | undefined |
-| _amount  | uint256 | undefined |
-| _data  | bytes | undefined |
+| l1Token `indexed` | address | undefined |
+| l2Token `indexed` | address | undefined |
+| from `indexed` | address | undefined |
+| to  | address | undefined |
+| amount  | uint256 | undefined |
+| data  | bytes | undefined |
 
 ### FinalizeWithdrawERC20
 
 ```solidity
-event FinalizeWithdrawERC20(address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256 _amount, bytes _data)
+event FinalizeWithdrawERC20(address indexed l1Token, address indexed l2Token, address indexed from, address to, uint256 amount, bytes data)
 ```
 
-
+Emitted when ERC20 token is withdrawn from L2 to L1 and transfer to recipient.
 
 
 
@@ -265,12 +252,12 @@ event FinalizeWithdrawERC20(address indexed _l1Token, address indexed _l2Token,
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token `indexed` | address | undefined |
-| _l2Token `indexed` | address | undefined |
-| _from `indexed` | address | undefined |
-| _to  | address | undefined |
-| _amount  | uint256 | undefined |
-| _data  | bytes | undefined |
+| l1Token `indexed` | address | undefined |
+| l2Token `indexed` | address | undefined |
+| from `indexed` | address | undefined |
+| to  | address | undefined |
+| amount  | uint256 | undefined |
+| data  | bytes | undefined |
 
 
 

contracts/docs/apis/L2ERC1155Gateway.md

@@ -16,7 +16,7 @@ The `L2ERC1155Gateway` is used to withdraw ERC1155 compatible NFTs in layer 2 an
 function batchWithdrawERC1155(address _token, uint256[] _tokenIds, uint256[] _amounts, uint256 _gasLimit) external nonpayable
 ```
 
-
+Batch withdraw a list of ERC1155 NFT to caller's account on layer 1.
 
 
 
@@ -35,7 +35,7 @@ function batchWithdrawERC1155(address _token, uint256[] _tokenIds, uint256[] _am
 function batchWithdrawERC1155(address _token, address _to, uint256[] _tokenIds, uint256[] _amounts, uint256 _gasLimit) external nonpayable
 ```
 
-
+Batch withdraw a list of ERC1155 NFT to caller's account on layer 1.
 
 
 
@@ -72,9 +72,9 @@ The address of corresponding L1/L2 Gateway contract.
 function finalizeBatchDepositERC1155(address _l1Token, address _l2Token, address _from, address _to, uint256[] _tokenIds, uint256[] _amounts) external nonpayable
 ```
 
+Complete ERC1155 deposit from layer 1 to layer 2 and send NFT to recipient's account in layer 2.
 
-
-
+*Requirements:  - The function should only be called by L2ScrollMessenger.  - The function should also only be called by L1ERC1155Gateway in layer 1.*
 
 #### Parameters
 
@@ -93,9 +93,9 @@ function finalizeBatchDepositERC1155(address _l1Token, address _l2Token, address
 function finalizeDepositERC1155(address _l1Token, address _l2Token, address _from, address _to, uint256 _tokenId, uint256 _amount) external nonpayable
 ```
 
+Complete ERC1155 deposit from layer 1 to layer 2 and send NFT to recipient's account in layer 2.
 
-
-
+*Requirements:  - The function should only be called by L2ScrollMessenger.  - The function should also only be called by L1ERC1155Gateway in layer 1.*
 
 #### Parameters
 
@@ -108,17 +108,6 @@ function finalizeDepositERC1155(address _l1Token, address _l2Token, address _fro
 | _tokenId | uint256 | undefined |
 | _amount | uint256 | undefined |
 
-### finalizeDropMessage
-
-```solidity
-function finalizeDropMessage() external payable
-```
-
-
-
-
-
-
 ### initialize
 
 ```solidity
@@ -142,7 +131,7 @@ function initialize(address _counterpart, address _messenger) external nonpayabl
 function messenger() external view returns (address)
 ```
 
-The address of L1ScrollMessenger/L2ScrollMessenger contract.
+The address of corresponding L1ScrollMessenger/L2ScrollMessenger contract.
 
 
 
@@ -333,7 +322,7 @@ Update layer 2 to layer 1 token mapping.
 function withdrawERC1155(address _token, uint256 _tokenId, uint256 _amount, uint256 _gasLimit) external nonpayable
 ```
 
-
+Withdraw some ERC1155 NFT to caller's account on layer 1.
 
 
 
@@ -352,7 +341,7 @@ function withdrawERC1155(address _token, uint256 _tokenId, uint256 _amount, uint
 function withdrawERC1155(address _token, address _to, uint256 _tokenId, uint256 _amount, uint256 _gasLimit) external nonpayable
 ```
 
-
+Withdraw some ERC1155 NFT to caller's account on layer 1.
 
 
 
@@ -373,10 +362,10 @@ function withdrawERC1155(address _token, address _to, uint256 _tokenId, uint256
 ### BatchWithdrawERC1155
 
 ```solidity
-event BatchWithdrawERC1155(address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256[] _tokenIds, uint256[] _amounts)
+event BatchWithdrawERC1155(address indexed l1Token, address indexed l2Token, address indexed from, address to, uint256[] tokenIds, uint256[] amounts)
 ```
 
-
+Emitted when the ERC1155 NFT is batch transfered to gateway in layer 2.
 
 
 
@@ -384,20 +373,20 @@ event BatchWithdrawERC1155(address indexed _l1Token, address indexed _l2Token, a
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token `indexed` | address | undefined |
-| _l2Token `indexed` | address | undefined |
-| _from `indexed` | address | undefined |
-| _to  | address | undefined |
-| _tokenIds  | uint256[] | undefined |
-| _amounts  | uint256[] | undefined |
+| l1Token `indexed` | address | undefined |
+| l2Token `indexed` | address | undefined |
+| from `indexed` | address | undefined |
+| to  | address | undefined |
+| tokenIds  | uint256[] | undefined |
+| amounts  | uint256[] | undefined |
 
 ### FinalizeBatchDepositERC1155
 
 ```solidity
-event FinalizeBatchDepositERC1155(address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256[] _tokenIds, uint256[] _amounts)
+event FinalizeBatchDepositERC1155(address indexed l1Token, address indexed l2Token, address indexed from, address to, uint256[] tokenIds, uint256[] amounts)
 ```
 
-
+Emitted when the ERC1155 NFT is batch transfered to recipient in layer 2.
 
 
 
@@ -405,20 +394,20 @@ event FinalizeBatchDepositERC1155(address indexed _l1Token, address indexed _l2T
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token `indexed` | address | undefined |
-| _l2Token `indexed` | address | undefined |
-| _from `indexed` | address | undefined |
-| _to  | address | undefined |
-| _tokenIds  | uint256[] | undefined |
-| _amounts  | uint256[] | undefined |
+| l1Token `indexed` | address | undefined |
+| l2Token `indexed` | address | undefined |
+| from `indexed` | address | undefined |
+| to  | address | undefined |
+| tokenIds  | uint256[] | undefined |
+| amounts  | uint256[] | undefined |
 
 ### FinalizeDepositERC1155
 
 ```solidity
-event FinalizeDepositERC1155(address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256 _tokenId, uint256 _amount)
+event FinalizeDepositERC1155(address indexed l1Token, address indexed l2Token, address indexed from, address to, uint256 tokenId, uint256 amount)
 ```
 
-
+Emitted when the ERC1155 NFT is transfered to recipient in layer 2.
 
 
 
@@ -426,12 +415,12 @@ event FinalizeDepositERC1155(address indexed _l1Token, address indexed _l2Token,
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token `indexed` | address | undefined |
-| _l2Token `indexed` | address | undefined |
-| _from `indexed` | address | undefined |
-| _to  | address | undefined |
-| _tokenId  | uint256 | undefined |
-| _amount  | uint256 | undefined |
+| l1Token `indexed` | address | undefined |
+| l2Token `indexed` | address | undefined |
+| from `indexed` | address | undefined |
+| to  | address | undefined |
+| tokenId  | uint256 | undefined |
+| amount  | uint256 | undefined |
 
 ### OwnershipTransferred
 
@@ -470,10 +459,10 @@ Emitted when token mapping for ERC1155 token is updated.
 ### WithdrawERC1155
 
 ```solidity
-event WithdrawERC1155(address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256 _tokenId, uint256 _amount)
+event WithdrawERC1155(address indexed l1Token, address indexed l2Token, address indexed from, address to, uint256 tokenId, uint256 amount)
 ```
 
-
+Emitted when the ERC1155 NFT is transfered to gateway in layer 2.
 
 
 
@@ -481,12 +470,12 @@ event WithdrawERC1155(address indexed _l1Token, address indexed _l2Token, addres
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token `indexed` | address | undefined |
-| _l2Token `indexed` | address | undefined |
-| _from `indexed` | address | undefined |
-| _to  | address | undefined |
-| _tokenId  | uint256 | undefined |
-| _amount  | uint256 | undefined |
+| l1Token `indexed` | address | undefined |
+| l2Token `indexed` | address | undefined |
+| from `indexed` | address | undefined |
+| to  | address | undefined |
+| tokenId  | uint256 | undefined |
+| amount  | uint256 | undefined |
 
 
 

contracts/docs/apis/L2ERC721Gateway.md

@@ -24,9 +24,9 @@ Batch withdraw a list of ERC721 NFT to caller's account on layer 1.
 
 | Name | Type | Description |
 |---|---|---|
-| _token | address | The address of ERC721 NFT in layer 2. |
-| _tokenIds | uint256[] | The list of token ids to withdraw. |
-| _gasLimit | uint256 | Unused, but included for potential forward compatibility considerations. |
+| _token | address | undefined |
+| _tokenIds | uint256[] | undefined |
+| _gasLimit | uint256 | undefined |
 
 ### batchWithdrawERC721
 
@@ -42,10 +42,10 @@ Batch withdraw a list of ERC721 NFT to caller's account on layer 1.
 
 | Name | Type | Description |
 |---|---|---|
-| _token | address | The address of ERC721 NFT in layer 2. |
-| _to | address | The address of recipient in layer 1. |
-| _tokenIds | uint256[] | The list of token ids to withdraw. |
-| _gasLimit | uint256 | Unused, but included for potential forward compatibility considerations. |
+| _token | address | undefined |
+| _to | address | undefined |
+| _tokenIds | uint256[] | undefined |
+| _gasLimit | uint256 | undefined |
 
 ### counterpart
 
@@ -78,11 +78,11 @@ Complete ERC721 deposit from layer 1 to layer 2 and send NFT to recipient's
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token | address | The address of corresponding layer 1 token. |
-| _l2Token | address | The address of corresponding layer 2 token. |
-| _from | address | The address of account who withdraw the token in layer 1. |
-| _to | address | The address of recipient in layer 2 to receive the token. |
-| _tokenIds | uint256[] | The list of token ids to withdraw. |
+| _l1Token | address | undefined |
+| _l2Token | address | undefined |
+| _from | address | undefined |
+| _to | address | undefined |
+| _tokenIds | uint256[] | undefined |
 
 ### finalizeDepositERC721
 
@@ -98,22 +98,11 @@ Complete ERC721 deposit from layer 1 to layer 2 and send NFT to recipient's
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token | address | The address of corresponding layer 1 token. |
-| _l2Token | address | The address of corresponding layer 2 token. |
-| _from | address | The address of account who withdraw the token in layer 1. |
-| _to | address | The address of recipient in layer 2 to receive the token. |
-| _tokenId | uint256 | The token id to withdraw. |
-
-### finalizeDropMessage
-
-```solidity
-function finalizeDropMessage() external payable
-```
-
-
-
-
-
+| _l1Token | address | undefined |
+| _l2Token | address | undefined |
+| _from | address | undefined |
+| _to | address | undefined |
+| _tokenId | uint256 | undefined |
 
 ### initialize
 
@@ -138,7 +127,7 @@ function initialize(address _counterpart, address _messenger) external nonpayabl
 function messenger() external view returns (address)
 ```
 
-The address of L1ScrollMessenger/L2ScrollMessenger contract.
+The address of corresponding L1ScrollMessenger/L2ScrollMessenger contract.
 
 
 
@@ -288,9 +277,9 @@ Withdraw some ERC721 NFT to caller's account on layer 1.
 
 | Name | Type | Description |
 |---|---|---|
-| _token | address | The address of ERC721 NFT in layer 2. |
-| _tokenId | uint256 | The token id to withdraw. |
-| _gasLimit | uint256 | Unused, but included for potential forward compatibility considerations. |
+| _token | address | undefined |
+| _tokenId | uint256 | undefined |
+| _gasLimit | uint256 | undefined |
 
 ### withdrawERC721
 
@@ -306,10 +295,10 @@ Withdraw some ERC721 NFT to caller's account on layer 1.
 
 | Name | Type | Description |
 |---|---|---|
-| _token | address | The address of ERC721 NFT in layer 2. |
-| _to | address | The address of recipient in layer 1. |
-| _tokenId | uint256 | The token id to withdraw. |
-| _gasLimit | uint256 | Unused, but included for potential forward compatibility considerations. |
+| _token | address | undefined |
+| _to | address | undefined |
+| _tokenId | uint256 | undefined |
+| _gasLimit | uint256 | undefined |
 
 
 
@@ -318,7 +307,7 @@ Withdraw some ERC721 NFT to caller's account on layer 1.
 ### BatchWithdrawERC721
 
 ```solidity
-event BatchWithdrawERC721(address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256[] _tokenIds)
+event BatchWithdrawERC721(address indexed l1Token, address indexed l2Token, address indexed from, address to, uint256[] tokenIds)
 ```
 
 Emitted when the ERC721 NFT is batch transfered to gateway in layer 2.
@@ -329,16 +318,16 @@ Emitted when the ERC721 NFT is batch transfered to gateway in layer 2.
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token `indexed` | address | undefined |
-| _l2Token `indexed` | address | undefined |
-| _from `indexed` | address | undefined |
-| _to  | address | undefined |
-| _tokenIds  | uint256[] | undefined |
+| l1Token `indexed` | address | undefined |
+| l2Token `indexed` | address | undefined |
+| from `indexed` | address | undefined |
+| to  | address | undefined |
+| tokenIds  | uint256[] | undefined |
 
 ### FinalizeBatchDepositERC721
 
 ```solidity
-event FinalizeBatchDepositERC721(address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256[] _tokenIds)
+event FinalizeBatchDepositERC721(address indexed l1Token, address indexed l2Token, address indexed from, address to, uint256[] tokenIds)
 ```
 
 Emitted when the ERC721 NFT is batch transfered to recipient in layer 2.
@@ -349,16 +338,16 @@ Emitted when the ERC721 NFT is batch transfered to recipient in layer 2.
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token `indexed` | address | undefined |
-| _l2Token `indexed` | address | undefined |
-| _from `indexed` | address | undefined |
-| _to  | address | undefined |
-| _tokenIds  | uint256[] | undefined |
+| l1Token `indexed` | address | undefined |
+| l2Token `indexed` | address | undefined |
+| from `indexed` | address | undefined |
+| to  | address | undefined |
+| tokenIds  | uint256[] | undefined |
 
 ### FinalizeDepositERC721
 
 ```solidity
-event FinalizeDepositERC721(address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256 _tokenId)
+event FinalizeDepositERC721(address indexed l1Token, address indexed l2Token, address indexed from, address to, uint256 tokenId)
 ```
 
 Emitted when the ERC721 NFT is transfered to recipient in layer 2.
@@ -369,11 +358,11 @@ Emitted when the ERC721 NFT is transfered to recipient in layer 2.
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token `indexed` | address | undefined |
-| _l2Token `indexed` | address | undefined |
-| _from `indexed` | address | undefined |
-| _to  | address | undefined |
-| _tokenId  | uint256 | undefined |
+| l1Token `indexed` | address | undefined |
+| l2Token `indexed` | address | undefined |
+| from `indexed` | address | undefined |
+| to  | address | undefined |
+| tokenId  | uint256 | undefined |
 
 ### OwnershipTransferred
 
@@ -412,7 +401,7 @@ Emitted when token mapping for ERC721 token is updated.
 ### WithdrawERC721
 
 ```solidity
-event WithdrawERC721(address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256 _tokenId)
+event WithdrawERC721(address indexed l1Token, address indexed l2Token, address indexed from, address to, uint256 tokenId)
 ```
 
 Emitted when the ERC721 NFT is transfered to gateway in layer 2.
@@ -423,11 +412,11 @@ Emitted when the ERC721 NFT is transfered to gateway in layer 2.
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token `indexed` | address | undefined |
-| _l2Token `indexed` | address | undefined |
-| _from `indexed` | address | undefined |
-| _to  | address | undefined |
-| _tokenId  | uint256 | undefined |
+| l1Token `indexed` | address | undefined |
+| l2Token `indexed` | address | undefined |
+| from `indexed` | address | undefined |
+| to  | address | undefined |
+| tokenId  | uint256 | undefined |
 
 
 

contracts/docs/apis/L2GatewayRouter.md

@@ -32,13 +32,13 @@ Mapping from L2 ERC20 token address to corresponding L2ERC20Gateway.
 |---|---|---|
 | _0 | address | undefined |
 
-### counterpart
+### defaultERC20Gateway
 
 ```solidity
-function counterpart() external view returns (address)
+function defaultERC20Gateway() external view returns (address)
 ```
 
-The address of corresponding L1/L2 Gateway contract.
+The addess of default L2 ERC20 gateway, normally the L2StandardERC20Gateway contract.
 
 
 
@@ -49,13 +49,13 @@ The address of corresponding L1/L2 Gateway contract.
 |---|---|---|
 | _0 | address | undefined |
 
-### defaultERC20Gateway
+### ethGateway
 
 ```solidity
-function defaultERC20Gateway() external view returns (address)
+function ethGateway() external view returns (address)
 ```
 
-The addess of default L2 ERC20 gateway, normally the L2StandardERC20Gateway contract.
+The address of L2ETHGateway.
 
 
 
@@ -90,7 +90,7 @@ Complete a deposit from L1 to L2 and send fund to recipient's account in L2.
 ### finalizeDepositETH
 
 ```solidity
-function finalizeDepositETH(address _from, address _to, uint256 _amount, bytes _data) external payable
+function finalizeDepositETH(address, address, uint256, bytes) external payable
 ```
 
 Complete ETH deposit from L1 to L2 and send fund to recipient's account in L2.
@@ -101,21 +101,10 @@ Complete ETH deposit from L1 to L2 and send fund to recipient's account in L
 
 | Name | Type | Description |
 |---|---|---|
-| _from | address | The address of account who deposit ETH in L1. |
-| _to | address | The address of recipient in L2 to receive ETH. |
-| _amount | uint256 | The amount of ETH to deposit. |
-| _data | bytes | Optional data to forward to recipient's account. |
-
-### finalizeDropMessage
-
-```solidity
-function finalizeDropMessage() external payable
-```
-
-
-
-
-
+| _0 | address | undefined |
+| _1 | address | undefined |
+| _2 | uint256 | undefined |
+| _3 | bytes | undefined |
 
 ### getERC20Gateway
 
@@ -186,7 +175,7 @@ Return the corresponding l2 token address given l1 token address.
 ### initialize
 
 ```solidity
-function initialize(address _defaultERC20Gateway, address _counterpart, address _messenger) external nonpayable
+function initialize(address _ethGateway, address _defaultERC20Gateway) external nonpayable
 ```
 
 
@@ -197,26 +186,8 @@ function initialize(address _defaultERC20Gateway, address _counterpart, address
 
 | Name | Type | Description |
 |---|---|---|
+| _ethGateway | address | undefined |
 | _defaultERC20Gateway | address | undefined |
-| _counterpart | address | undefined |
-| _messenger | address | undefined |
-
-### messenger
-
-```solidity
-function messenger() external view returns (address)
-```
-
-The address of L1ScrollMessenger/L2ScrollMessenger contract.
-
-
-
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | address | undefined |
 
 ### owner
 
@@ -246,23 +217,6 @@ function renounceOwnership() external nonpayable
 *Leaves the contract without owner. It will not be possible to call `onlyOwner` functions anymore. Can only be called by the current owner. NOTE: Renouncing ownership will leave the contract without an owner, thereby removing any functionality that is only available to the owner.*
 
 
-### router
-
-```solidity
-function router() external view returns (address)
-```
-
-The address of L1GatewayRouter/L2GatewayRouter contract.
-
-
-
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | address | undefined |
-
 ### setDefaultERC20Gateway
 
 ```solidity
@@ -296,6 +250,22 @@ Update the mapping from token address to gateway address.
 | _tokens | address[] | The list of addresses of tokens to update. |
 | _gateways | address[] | The list of addresses of gateways to update. |
 
+### setETHGateway
+
+```solidity
+function setETHGateway(address _ethGateway) external nonpayable
+```
+
+Update the address of ETH gateway contract.
+
+*This function should only be called by contract owner.*
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _ethGateway | address | The address to update. |
+
 ### transferOwnership
 
 ```solidity
@@ -326,9 +296,9 @@ Withdraw of some token to a caller's account on L1.
 
 | Name | Type | Description |
 |---|---|---|
-| _token | address | The address of token in L2. |
-| _amount | uint256 | The amount of token to transfer. |
-| _gasLimit | uint256 | Unused, but included for potential forward compatibility considerations. |
+| _token | address | undefined |
+| _amount | uint256 | undefined |
+| _gasLimit | uint256 | undefined |
 
 ### withdrawERC20
 
@@ -344,10 +314,10 @@ Withdraw of some token to a recipient's account on L1.
 
 | Name | Type | Description |
 |---|---|---|
-| _token | address | The address of token in L2. |
-| _to | address | The address of recipient's account on L1. |
-| _amount | uint256 | The amount of token to transfer. |
-| _gasLimit | uint256 | Unused, but included for potential forward compatibility considerations. |
+| _token | address | undefined |
+| _to | address | undefined |
+| _amount | uint256 | undefined |
+| _gasLimit | uint256 | undefined |
 
 ### withdrawERC20AndCall
 
@@ -363,16 +333,16 @@ Withdraw of some token to a recipient's account on L1 and call.
 
 | Name | Type | Description |
 |---|---|---|
-| _token | address | The address of token in L2. |
-| _to | address | The address of recipient's account on L1. |
-| _amount | uint256 | The amount of token to transfer. |
-| _data | bytes | Optional data to forward to recipient's account. |
-| _gasLimit | uint256 | Unused, but included for potential forward compatibility considerations. |
+| _token | address | undefined |
+| _to | address | undefined |
+| _amount | uint256 | undefined |
+| _data | bytes | undefined |
+| _gasLimit | uint256 | undefined |
 
 ### withdrawETH
 
 ```solidity
-function withdrawETH(address _to, uint256 _gasLimit) external payable
+function withdrawETH(address _to, uint256 _amount, uint256 _gasLimit) external payable
 ```
 
 Withdraw ETH to caller's account in L1.
@@ -383,13 +353,14 @@ Withdraw ETH to caller's account in L1.
 
 | Name | Type | Description |
 |---|---|---|
-| _to | address | The address of recipient's account on L1. |
-| _gasLimit | uint256 | Gas limit required to complete the withdraw on L1. |
+| _to | address | undefined |
+| _amount | uint256 | undefined |
+| _gasLimit | uint256 | undefined |
 
 ### withdrawETH
 
 ```solidity
-function withdrawETH(uint256 _gasLimit) external payable
+function withdrawETH(uint256 _amount, uint256 _gasLimit) external payable
 ```
 
 Withdraw ETH to caller's account in L1.
@@ -400,7 +371,27 @@ Withdraw ETH to caller's account in L1.
 
 | Name | Type | Description |
 |---|---|---|
-| _gasLimit | uint256 | Gas limit required to complete the withdraw on L1. |
+| _amount | uint256 | undefined |
+| _gasLimit | uint256 | undefined |
+
+### withdrawETHAndCall
+
+```solidity
+function withdrawETHAndCall(address _to, uint256 _amount, bytes _data, uint256 _gasLimit) external payable
+```
+
+Withdraw ETH to caller's account in L1.
+
+
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _to | address | undefined |
+| _amount | uint256 | undefined |
+| _data | bytes | undefined |
+| _gasLimit | uint256 | undefined |
 
 
 
@@ -409,10 +400,10 @@ Withdraw ETH to caller's account in L1.
 ### FinalizeDepositERC20
 
 ```solidity
-event FinalizeDepositERC20(address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256 _amount, bytes _data)
+event FinalizeDepositERC20(address indexed l1Token, address indexed l2Token, address indexed from, address to, uint256 amount, bytes data)
 ```
 
-
+Emitted when ERC20 token is deposited from L1 to L2 and transfer to recipient.
 
 
 
@@ -420,20 +411,20 @@ event FinalizeDepositERC20(address indexed _l1Token, address indexed _l2Token, a
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token `indexed` | address | undefined |
-| _l2Token `indexed` | address | undefined |
-| _from `indexed` | address | undefined |
-| _to  | address | undefined |
-| _amount  | uint256 | undefined |
-| _data  | bytes | undefined |
+| l1Token `indexed` | address | undefined |
+| l2Token `indexed` | address | undefined |
+| from `indexed` | address | undefined |
+| to  | address | undefined |
+| amount  | uint256 | undefined |
+| data  | bytes | undefined |
 
 ### FinalizeDepositETH
 
 ```solidity
-event FinalizeDepositETH(address indexed _from, address indexed _to, uint256 _amount, bytes _data)
+event FinalizeDepositETH(address indexed from, address indexed to, uint256 amount, bytes data)
 ```
 
-
+Emitted when ETH is deposited from L1 to L2 and transfer to recipient.
 
 
 
@@ -441,10 +432,10 @@ event FinalizeDepositETH(address indexed _from, address indexed _to, uint256 _am
 
 | Name | Type | Description |
 |---|---|---|
-| _from `indexed` | address | undefined |
-| _to `indexed` | address | undefined |
-| _amount  | uint256 | undefined |
-| _data  | bytes | undefined |
+| from `indexed` | address | undefined |
+| to `indexed` | address | undefined |
+| amount  | uint256 | undefined |
+| data  | bytes | undefined |
 
 ### OwnershipTransferred
 
@@ -466,10 +457,10 @@ event OwnershipTransferred(address indexed previousOwner, address indexed newOwn
 ### SetDefaultERC20Gateway
 
 ```solidity
-event SetDefaultERC20Gateway(address indexed _defaultERC20Gateway)
+event SetDefaultERC20Gateway(address indexed defaultERC20Gateway)
 ```
 
-
+Emitted when the address of default ERC20 Gateway is updated.
 
 
 
@@ -477,15 +468,15 @@ event SetDefaultERC20Gateway(address indexed _defaultERC20Gateway)
 
 | Name | Type | Description |
 |---|---|---|
-| _defaultERC20Gateway `indexed` | address | undefined |
+| defaultERC20Gateway `indexed` | address | undefined |
 
 ### SetERC20Gateway
 
 ```solidity
-event SetERC20Gateway(address indexed _token, address indexed _gateway)
+event SetERC20Gateway(address indexed token, address indexed gateway)
 ```
 
-
+Emitted when the `gateway` for `token` is updated.
 
 
 
@@ -493,16 +484,32 @@ event SetERC20Gateway(address indexed _token, address indexed _gateway)
 
 | Name | Type | Description |
 |---|---|---|
-| _token `indexed` | address | undefined |
-| _gateway `indexed` | address | undefined |
+| token `indexed` | address | undefined |
+| gateway `indexed` | address | undefined |
+
+### SetETHGateway
+
+```solidity
+event SetETHGateway(address indexed ethGateway)
+```
+
+Emitted when the address of ETH Gateway is updated.
+
+
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| ethGateway `indexed` | address | undefined |
 
 ### WithdrawERC20
 
 ```solidity
-event WithdrawERC20(address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256 _amount, bytes _data)
+event WithdrawERC20(address indexed l1Token, address indexed l2Token, address indexed from, address to, uint256 amount, bytes data)
 ```
 
-
+Emitted when someone withdraw ERC20 token from L2 to L1.
 
 
 
@@ -510,20 +517,20 @@ event WithdrawERC20(address indexed _l1Token, address indexed _l2Token, address
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token `indexed` | address | undefined |
-| _l2Token `indexed` | address | undefined |
-| _from `indexed` | address | undefined |
-| _to  | address | undefined |
-| _amount  | uint256 | undefined |
-| _data  | bytes | undefined |
+| l1Token `indexed` | address | undefined |
+| l2Token `indexed` | address | undefined |
+| from `indexed` | address | undefined |
+| to  | address | undefined |
+| amount  | uint256 | undefined |
+| data  | bytes | undefined |
 
 ### WithdrawETH
 
 ```solidity
-event WithdrawETH(address indexed _from, address indexed _to, uint256 _amount, bytes _data)
+event WithdrawETH(address indexed from, address indexed to, uint256 amount, bytes data)
 ```
 
-
+Emitted when someone withdraw ETH from L2 to L1.
 
 
 
@@ -531,10 +538,10 @@ event WithdrawETH(address indexed _from, address indexed _to, uint256 _amount, b
 
 | Name | Type | Description |
 |---|---|---|
-| _from `indexed` | address | undefined |
-| _to `indexed` | address | undefined |
-| _amount  | uint256 | undefined |
-| _data  | bytes | undefined |
+| from `indexed` | address | undefined |
+| to `indexed` | address | undefined |
+| amount  | uint256 | undefined |
+| data  | bytes | undefined |
 
 
 

contracts/docs/apis/L2ScrollMessenger.md

@@ -10,13 +10,13 @@ The `L2ScrollMessenger` contract can: 1. send messages from layer 2 to layer 1;
 
 ## Methods
 
-### dropDelayDuration
+### blockContainer
 
 ```solidity
-function dropDelayDuration() external view returns (uint256)
+function blockContainer() external view returns (address)
 ```
 
-The amount of seconds needed to wait if we want to drop message.
+The contract contains the list of L1 blocks.
 
 
 
@@ -25,30 +25,41 @@ The amount of seconds needed to wait if we want to drop message.
 
 | Name | Type | Description |
 |---|---|---|
-| _0 | uint256 | undefined |
+| _0 | address | undefined |
 
-### dropMessage
+### counterpart
 
 ```solidity
-function dropMessage(address, address, uint256, uint256, uint256, uint256, bytes, uint256) external nonpayable
+function counterpart() external view returns (address)
 ```
 
+The address of counterpart ScrollMessenger contract in L1/L2.
 
 
 
 
-#### Parameters
+#### Returns
+
+| Name | Type | Description |
+|---|---|---|
+| _0 | address | undefined |
+
+### feeVault
+
+```solidity
+function feeVault() external view returns (address)
+```
+
+The address of fee vault, collecting cross domain messaging fee.
+
+
+
+
+#### Returns
 
 | Name | Type | Description |
 |---|---|---|
 | _0 | address | undefined |
-| _1 | address | undefined |
-| _2 | uint256 | undefined |
-| _3 | uint256 | undefined |
-| _4 | uint256 | undefined |
-| _5 | uint256 | undefined |
-| _6 | bytes | undefined |
-| _7 | uint256 | undefined |
 
 ### gasOracle
 
@@ -56,7 +67,7 @@ function dropMessage(address, address, uint256, uint256, uint256, uint256, bytes
 function gasOracle() external view returns (address)
 ```
 
-The gas oracle used to estimate transaction fee on layer 2.
+The address of L2MessageQueue.
 
 
 
@@ -67,13 +78,30 @@ The gas oracle used to estimate transaction fee on layer 2.
 |---|---|---|
 | _0 | address | undefined |
 
-### isMessageExecuted
+### initialize
 
 ```solidity
-function isMessageExecuted(bytes32) external view returns (bool)
+function initialize(address _counterpart, address _feeVault) external nonpayable
 ```
 
-Mapping from message hash to execution status.
+
+
+
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _counterpart | address | undefined |
+| _feeVault | address | undefined |
+
+### isL1MessageExecuted
+
+```solidity
+function isL1MessageExecuted(bytes32) external view returns (bool)
+```
+
+Mapping from L1 message hash to a boolean value indicating if the message has been successfully executed.
 
 
 
@@ -89,13 +117,13 @@ Mapping from message hash to execution status.
 |---|---|---|
 | _0 | bool | undefined |
 
-### isMessageRelayed
+### isL2MessageSent
 
 ```solidity
-function isMessageRelayed(bytes32) external view returns (bool)
+function isL2MessageSent(bytes32) external view returns (bool)
 ```
 
-Mapping from relay id to relay status.
+Mapping from L2 message hash to sent status.
 
 
 
@@ -111,13 +139,35 @@ Mapping from relay id to relay status.
 |---|---|---|
 | _0 | bool | undefined |
 
-### messageNonce
+### l1MessageFailedTimes
 
 ```solidity
-function messageNonce() external view returns (uint256)
+function l1MessageFailedTimes(bytes32) external view returns (uint256)
 ```
 
-Message nonce, used to avoid relay attack.
+Mapping from L1 message hash to the number of failure times.
+
+
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _0 | bytes32 | undefined |
+
+#### Returns
+
+| Name | Type | Description |
+|---|---|---|
+| _0 | uint256 | undefined |
+
+### maxFailedExecutionTimes
+
+```solidity
+function maxFailedExecutionTimes() external view returns (uint256)
+```
+
+The maximum number of times each L1 message can fail on L2.
 
 
 
@@ -128,30 +178,13 @@ Message nonce, used to avoid relay attack.
 |---|---|---|
 | _0 | uint256 | undefined |
 
-### messagePasser
+### messageQueue
 
 ```solidity
-function messagePasser() external view returns (contract L2ToL1MessagePasser)
+function messageQueue() external view returns (address)
 ```
 
-Contract to store the sent message.
-
-
-
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | contract L2ToL1MessagePasser | undefined |
-
-### owner
-
-```solidity
-function owner() external view returns (address)
-```
-
-The address of the current owner.
+The address of L2MessageQueue.
 
 
 
@@ -162,10 +195,55 @@ The address of the current owner.
 |---|---|---|
 | _0 | address | undefined |
 
+### owner
+
+```solidity
+function owner() external view returns (address)
+```
+
+
+
+*Returns the address of the current owner.*
+
+
+#### Returns
+
+| Name | Type | Description |
+|---|---|---|
+| _0 | address | undefined |
+
+### pause
+
+```solidity
+function pause() external nonpayable
+```
+
+Pause the contract
+
+*This function can only called by contract owner.*
+
+
+### paused
+
+```solidity
+function paused() external view returns (bool)
+```
+
+
+
+*Returns true if the contract is paused, and false otherwise.*
+
+
+#### Returns
+
+| Name | Type | Description |
+|---|---|---|
+| _0 | bool | undefined |
+
 ### relayMessage
 
 ```solidity
-function relayMessage(address _from, address _to, uint256 _value, uint256 _fee, uint256 _deadline, uint256 _nonce, bytes _message) external nonpayable
+function relayMessage(address _from, address _to, uint256 _value, uint256 _nonce, bytes _message) external nonpayable
 ```
 
 execute L1 => L2 message
@@ -176,13 +254,11 @@ execute L1 => L2 message
 
 | Name | Type | Description |
 |---|---|---|
-| _from | address | The address of the sender of the message. |
-| _to | address | The address of the recipient of the message. |
-| _value | uint256 | The msg.value passed to the message call. |
-| _fee | uint256 | The amount of fee in ETH to charge. |
-| _deadline | uint256 | The deadline of the message. |
-| _nonce | uint256 | The nonce of the message to avoid replay attack. |
-| _message | bytes | The content of the message. |
+| _from | address | undefined |
+| _to | address | undefined |
+| _value | uint256 | undefined |
+| _nonce | uint256 | undefined |
+| _message | bytes | undefined |
 
 ### renounceOwnership
 
@@ -190,53 +266,74 @@ execute L1 => L2 message
 function renounceOwnership() external nonpayable
 ```
 
-Leaves the contract without owner. It will not be possible to call `onlyOwner` functions anymore. Can only be called by the current owner.
 
-*Renouncing ownership will leave the contract without an owner, thereby removing any functionality that is only available to the owner.*
 
+*Leaves the contract without owner. It will not be possible to call `onlyOwner` functions anymore. Can only be called by the current owner. NOTE: Renouncing ownership will leave the contract without an owner, thereby removing any functionality that is only available to the owner.*
+
+
+### retryMessageWithProof
+
+```solidity
+function retryMessageWithProof(address _from, address _to, uint256 _value, uint256 _nonce, bytes _message, IL2ScrollMessenger.L1MessageProof _proof) external nonpayable
+```
+
+
+
+
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _from | address | undefined |
+| _to | address | undefined |
+| _value | uint256 | undefined |
+| _nonce | uint256 | undefined |
+| _message | bytes | undefined |
+| _proof | IL2ScrollMessenger.L1MessageProof | undefined |
 
 ### sendMessage
 
 ```solidity
-function sendMessage(address _to, uint256 _fee, bytes _message, uint256 _gasLimit) external payable
+function sendMessage(address _to, uint256 _value, bytes _message, uint256 _gasLimit) external payable
 ```
 
-Send cross chain message (L1 => L2 or L2 => L1)
+Send cross chain message from L1 to L2 or L2 to L1.
+
 
-*Currently, only privileged accounts can call this function for safty. And adding an extra `_fee` variable make it more easy to upgrade to decentralized version.*
 
 #### Parameters
 
 | Name | Type | Description |
 |---|---|---|
-| _to | address | The address of account who recieve the message. |
-| _fee | uint256 | The amount of fee in Ether the caller would like to pay to the relayer. |
-| _message | bytes | The content of the message. |
-| _gasLimit | uint256 | Unused, but included for potential forward compatibility considerations. |
+| _to | address | undefined |
+| _value | uint256 | undefined |
+| _message | bytes | undefined |
+| _gasLimit | uint256 | undefined |
 
 ### transferOwnership
 
 ```solidity
-function transferOwnership(address _newOwner) external nonpayable
+function transferOwnership(address newOwner) external nonpayable
 ```
 
-Transfers ownership of the contract to a new account (`newOwner`). Can only be called by the current owner.
 
 
+*Transfers ownership of the contract to a new account (`newOwner`). Can only be called by the current owner.*
 
 #### Parameters
 
 | Name | Type | Description |
 |---|---|---|
-| _newOwner | address | undefined |
+| newOwner | address | undefined |
 
-### updateDropDelayDuration
+### updateFeeVault
 
 ```solidity
-function updateDropDelayDuration(uint256 _newDuration) external nonpayable
+function updateFeeVault(address _newFeeVault) external nonpayable
 ```
 
-Update the drop delay duration.
+Update fee vault contract.
 
 *This function can only called by contract owner.*
 
@@ -244,23 +341,23 @@ Update the drop delay duration.
 
 | Name | Type | Description |
 |---|---|---|
-| _newDuration | uint256 | The new delay duration to update. |
+| _newFeeVault | address | The address of new fee vault contract. |
 
-### updateGasOracle
+### updateMaxFailedExecutionTimes
 
 ```solidity
-function updateGasOracle(address _newGasOracle) external nonpayable
+function updateMaxFailedExecutionTimes(uint256 _maxFailedExecutionTimes) external nonpayable
 ```
 
-Update the address of gas oracle.
 
-*This function can only called by contract owner.*
+
+
 
 #### Parameters
 
 | Name | Type | Description |
 |---|---|---|
-| _newGasOracle | address | The address to update. |
+| _maxFailedExecutionTimes | uint256 | undefined |
 
 ### updateWhitelist
 
@@ -278,6 +375,54 @@ Update whitelist contract.
 |---|---|---|
 | _newWhitelist | address | The address of new whitelist contract. |
 
+### verifyMessageExecutionStatus
+
+```solidity
+function verifyMessageExecutionStatus(bytes32 _blockHash, bytes32 _msgHash, bytes _proof) external view returns (bool)
+```
+
+Check whether the message is executed in the corresponding L1 block.
+
+
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _blockHash | bytes32 | The block hash where the message should in. |
+| _msgHash | bytes32 | The hash of the message to check. |
+| _proof | bytes | The encoded storage proof from eth_getProof. |
+
+#### Returns
+
+| Name | Type | Description |
+|---|---|---|
+| _0 | bool | bool Return true is the message is executed in L1, otherwise return false. |
+
+### verifyMessageInclusionStatus
+
+```solidity
+function verifyMessageInclusionStatus(bytes32 _blockHash, bytes32 _msgHash, bytes _proof) external view returns (bool)
+```
+
+Check whether the l1 message is included in the corresponding L1 block.
+
+
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| _blockHash | bytes32 | The block hash where the message should in. |
+| _msgHash | bytes32 | The hash of the message to check. |
+| _proof | bytes | The encoded storage proof from eth_getProof. |
+
+#### Returns
+
+| Name | Type | Description |
+|---|---|---|
+| _0 | bool | bool Return true is the message is included in L1, otherwise return false. |
+
 ### whitelist
 
 ```solidity
@@ -319,10 +464,10 @@ See {IScrollMessenger-xDomainMessageSender}
 ### FailedRelayedMessage
 
 ```solidity
-event FailedRelayedMessage(bytes32 indexed msgHash)
+event FailedRelayedMessage(bytes32 indexed messageHash)
 ```
 
-
+Emitted when a cross domain message is failed to relay.
 
 
 
@@ -330,31 +475,15 @@ event FailedRelayedMessage(bytes32 indexed msgHash)
 
 | Name | Type | Description |
 |---|---|---|
-| msgHash `indexed` | bytes32 | undefined |
-
-### MessageDropped
-
-```solidity
-event MessageDropped(bytes32 indexed msgHash)
-```
-
-
-
-
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| msgHash `indexed` | bytes32 | undefined |
+| messageHash `indexed` | bytes32 | undefined |
 
 ### OwnershipTransferred
 
 ```solidity
-event OwnershipTransferred(address indexed _oldOwner, address indexed _newOwner)
+event OwnershipTransferred(address indexed previousOwner, address indexed newOwner)
 ```
 
-Emitted when owner is changed by current owner.
+
 
 
 
@@ -362,16 +491,32 @@ Emitted when owner is changed by current owner.
 
 | Name | Type | Description |
 |---|---|---|
-| _oldOwner `indexed` | address | undefined |
-| _newOwner `indexed` | address | undefined |
+| previousOwner `indexed` | address | undefined |
+| newOwner `indexed` | address | undefined |
+
+### Paused
+
+```solidity
+event Paused(address account)
+```
+
+
+
+
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| account  | address | undefined |
 
 ### RelayedMessage
 
 ```solidity
-event RelayedMessage(bytes32 indexed msgHash)
+event RelayedMessage(bytes32 indexed messageHash)
 ```
 
-
+Emitted when a cross domain message is relayed successfully.
 
 
 
@@ -379,15 +524,15 @@ event RelayedMessage(bytes32 indexed msgHash)
 
 | Name | Type | Description |
 |---|---|---|
-| msgHash `indexed` | bytes32 | undefined |
+| messageHash `indexed` | bytes32 | undefined |
 
 ### SentMessage
 
 ```solidity
-event SentMessage(address indexed target, address sender, uint256 value, uint256 fee, uint256 deadline, bytes message, uint256 messageNonce, uint256 gasLimit)
+event SentMessage(address indexed sender, address indexed target, uint256 value, uint256 messageNonce, uint256 gasLimit, bytes message)
 ```
 
-
+Emitted when a cross domain message is sent.
 
 
 
@@ -395,22 +540,20 @@ event SentMessage(address indexed target, address sender, uint256 value, uint256
 
 | Name | Type | Description |
 |---|---|---|
+| sender `indexed` | address | undefined |
 | target `indexed` | address | undefined |
-| sender  | address | undefined |
 | value  | uint256 | undefined |
-| fee  | uint256 | undefined |
-| deadline  | uint256 | undefined |
-| message  | bytes | undefined |
 | messageNonce  | uint256 | undefined |
 | gasLimit  | uint256 | undefined |
+| message  | bytes | undefined |
 
-### UpdateDropDelayDuration
+### Unpaused
 
 ```solidity
-event UpdateDropDelayDuration(uint256 _oldDuration, uint256 _newDuration)
+event Unpaused(address account)
 ```
 
-Emitted when owner updates drop delay duration
+
 
 
 
@@ -418,16 +561,15 @@ Emitted when owner updates drop delay duration
 
 | Name | Type | Description |
 |---|---|---|
-| _oldDuration  | uint256 | undefined |
-| _newDuration  | uint256 | undefined |
+| account  | address | undefined |
 
-### UpdateGasOracle
+### UpdateFeeVault
 
 ```solidity
-event UpdateGasOracle(address _oldGasOracle, address _newGasOracle)
+event UpdateFeeVault(address _oldFeeVault, address _newFeeVault)
 ```
 
-Emitted when owner updates gas oracle contract.
+Emitted when owner updates fee vault contract.
 
 
 
@@ -435,8 +577,24 @@ Emitted when owner updates gas oracle contract.
 
 | Name | Type | Description |
 |---|---|---|
-| _oldGasOracle  | address | undefined |
-| _newGasOracle  | address | undefined |
+| _oldFeeVault  | address | undefined |
+| _newFeeVault  | address | undefined |
+
+### UpdateMaxFailedExecutionTimes
+
+```solidity
+event UpdateMaxFailedExecutionTimes(uint256 maxFailedExecutionTimes)
+```
+
+Emitted when the maximum number of times each message can fail in L2 is updated.
+
+
+
+#### Parameters
+
+| Name | Type | Description |
+|---|---|---|
+| maxFailedExecutionTimes  | uint256 | The new maximum number of times each message can fail in L2. |
 
 ### UpdateWhitelist
 

contracts/docs/apis/L2StandardERC20Gateway.md

@@ -41,23 +41,12 @@ Complete a deposit from L1 to L2 and send fund to recipient's account in L2.
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token | address | The address of corresponding L1 token. |
-| _l2Token | address | The address of corresponding L2 token. |
-| _from | address | The address of account who deposits the token in L1. |
-| _to | address | The address of recipient in L2 to receive the token. |
-| _amount | uint256 | The amount of the token to deposit. |
-| _data | bytes | Optional data to forward to recipient's account. |
-
-### finalizeDropMessage
-
-```solidity
-function finalizeDropMessage() external payable
-```
-
-
-
-
-
+| _l1Token | address | undefined |
+| _l2Token | address | undefined |
+| _from | address | undefined |
+| _to | address | undefined |
+| _amount | uint256 | undefined |
+| _data | bytes | undefined |
 
 ### getL1ERC20Address
 
@@ -73,7 +62,7 @@ Return the corresponding l1 token address given l2 token address.
 
 | Name | Type | Description |
 |---|---|---|
-| _l2Token | address | The address of l2 token. |
+| _l2Token | address | undefined |
 
 #### Returns
 
@@ -95,7 +84,7 @@ Return the corresponding l2 token address given l1 token address.
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token | address | The address of l1 token. |
+| _l1Token | address | undefined |
 
 #### Returns
 
@@ -128,7 +117,7 @@ function initialize(address _counterpart, address _router, address _messenger, a
 function messenger() external view returns (address)
 ```
 
-The address of L1ScrollMessenger/L2ScrollMessenger contract.
+The address of corresponding L1ScrollMessenger/L2ScrollMessenger contract.
 
 
 
@@ -187,9 +176,9 @@ Withdraw of some token to a caller's account on L1.
 
 | Name | Type | Description |
 |---|---|---|
-| _token | address | The address of token in L2. |
-| _amount | uint256 | The amount of token to transfer. |
-| _gasLimit | uint256 | Unused, but included for potential forward compatibility considerations. |
+| _token | address | undefined |
+| _amount | uint256 | undefined |
+| _gasLimit | uint256 | undefined |
 
 ### withdrawERC20
 
@@ -205,10 +194,10 @@ Withdraw of some token to a recipient's account on L1.
 
 | Name | Type | Description |
 |---|---|---|
-| _token | address | The address of token in L2. |
-| _to | address | The address of recipient's account on L1. |
-| _amount | uint256 | The amount of token to transfer. |
-| _gasLimit | uint256 | Unused, but included for potential forward compatibility considerations. |
+| _token | address | undefined |
+| _to | address | undefined |
+| _amount | uint256 | undefined |
+| _gasLimit | uint256 | undefined |
 
 ### withdrawERC20AndCall
 
@@ -224,11 +213,11 @@ Withdraw of some token to a recipient's account on L1 and call.
 
 | Name | Type | Description |
 |---|---|---|
-| _token | address | The address of token in L2. |
-| _to | address | The address of recipient's account on L1. |
-| _amount | uint256 | The amount of token to transfer. |
-| _data | bytes | Optional data to forward to recipient's account. |
-| _gasLimit | uint256 | Unused, but included for potential forward compatibility considerations. |
+| _token | address | undefined |
+| _to | address | undefined |
+| _amount | uint256 | undefined |
+| _data | bytes | undefined |
+| _gasLimit | uint256 | undefined |
 
 
 
@@ -237,10 +226,10 @@ Withdraw of some token to a recipient's account on L1 and call.
 ### FinalizeDepositERC20
 
 ```solidity
-event FinalizeDepositERC20(address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256 _amount, bytes _data)
+event FinalizeDepositERC20(address indexed l1Token, address indexed l2Token, address indexed from, address to, uint256 amount, bytes data)
 ```
 
-
+Emitted when ERC20 token is deposited from L1 to L2 and transfer to recipient.
 
 
 
@@ -248,20 +237,20 @@ event FinalizeDepositERC20(address indexed _l1Token, address indexed _l2Token, a
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token `indexed` | address | undefined |
-| _l2Token `indexed` | address | undefined |
-| _from `indexed` | address | undefined |
-| _to  | address | undefined |
-| _amount  | uint256 | undefined |
-| _data  | bytes | undefined |
+| l1Token `indexed` | address | undefined |
+| l2Token `indexed` | address | undefined |
+| from `indexed` | address | undefined |
+| to  | address | undefined |
+| amount  | uint256 | undefined |
+| data  | bytes | undefined |
 
 ### WithdrawERC20
 
 ```solidity
-event WithdrawERC20(address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256 _amount, bytes _data)
+event WithdrawERC20(address indexed l1Token, address indexed l2Token, address indexed from, address to, uint256 amount, bytes data)
 ```
 
-
+Emitted when someone withdraw ERC20 token from L2 to L1.
 
 
 
@@ -269,12 +258,12 @@ event WithdrawERC20(address indexed _l1Token, address indexed _l2Token, address
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token `indexed` | address | undefined |
-| _l2Token `indexed` | address | undefined |
-| _from `indexed` | address | undefined |
-| _to  | address | undefined |
-| _amount  | uint256 | undefined |
-| _data  | bytes | undefined |
+| l1Token `indexed` | address | undefined |
+| l2Token `indexed` | address | undefined |
+| from `indexed` | address | undefined |
+| to  | address | undefined |
+| amount  | uint256 | undefined |
+| data  | bytes | undefined |
 
 
 

contracts/docs/apis/L2WETHGateway.md

@@ -58,23 +58,12 @@ Complete a deposit from L1 to L2 and send fund to recipient's account in L2.
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token | address | The address of corresponding L1 token. |
-| _l2Token | address | The address of corresponding L2 token. |
-| _from | address | The address of account who deposits the token in L1. |
-| _to | address | The address of recipient in L2 to receive the token. |
-| _amount | uint256 | The amount of the token to deposit. |
-| _data | bytes | Optional data to forward to recipient's account. |
-
-### finalizeDropMessage
-
-```solidity
-function finalizeDropMessage() external payable
-```
-
-
-
-
-
+| _l1Token | address | undefined |
+| _l2Token | address | undefined |
+| _from | address | undefined |
+| _to | address | undefined |
+| _amount | uint256 | undefined |
+| _data | bytes | undefined |
 
 ### getL1ERC20Address
 
@@ -123,7 +112,7 @@ Return the corresponding l2 token address given l1 token address.
 ### initialize
 
 ```solidity
-function initialize(address _counterpart, address _router, address _messenger, address _WETH, address _l1WETH) external nonpayable
+function initialize(address _counterpart, address _router, address _messenger) external nonpayable
 ```
 
 
@@ -137,8 +126,6 @@ function initialize(address _counterpart, address _router, address _messenger, a
 | _counterpart | address | undefined |
 | _router | address | undefined |
 | _messenger | address | undefined |
-| _WETH | address | undefined |
-| _l1WETH | address | undefined |
 
 ### l1WETH
 
@@ -163,7 +150,7 @@ The address of L1 WETH address.
 function messenger() external view returns (address)
 ```
 
-The address of L1ScrollMessenger/L2ScrollMessenger contract.
+The address of corresponding L1ScrollMessenger/L2ScrollMessenger contract.
 
 
 
@@ -205,9 +192,9 @@ Withdraw of some token to a caller's account on L1.
 
 | Name | Type | Description |
 |---|---|---|
-| _token | address | The address of token in L2. |
-| _amount | uint256 | The amount of token to transfer. |
-| _gasLimit | uint256 | Unused, but included for potential forward compatibility considerations. |
+| _token | address | undefined |
+| _amount | uint256 | undefined |
+| _gasLimit | uint256 | undefined |
 
 ### withdrawERC20
 
@@ -223,10 +210,10 @@ Withdraw of some token to a recipient's account on L1.
 
 | Name | Type | Description |
 |---|---|---|
-| _token | address | The address of token in L2. |
-| _to | address | The address of recipient's account on L1. |
-| _amount | uint256 | The amount of token to transfer. |
-| _gasLimit | uint256 | Unused, but included for potential forward compatibility considerations. |
+| _token | address | undefined |
+| _to | address | undefined |
+| _amount | uint256 | undefined |
+| _gasLimit | uint256 | undefined |
 
 ### withdrawERC20AndCall
 
@@ -242,11 +229,11 @@ Withdraw of some token to a recipient's account on L1 and call.
 
 | Name | Type | Description |
 |---|---|---|
-| _token | address | The address of token in L2. |
-| _to | address | The address of recipient's account on L1. |
-| _amount | uint256 | The amount of token to transfer. |
-| _data | bytes | Optional data to forward to recipient's account. |
-| _gasLimit | uint256 | Unused, but included for potential forward compatibility considerations. |
+| _token | address | undefined |
+| _to | address | undefined |
+| _amount | uint256 | undefined |
+| _data | bytes | undefined |
+| _gasLimit | uint256 | undefined |
 
 
 
@@ -255,10 +242,10 @@ Withdraw of some token to a recipient's account on L1 and call.
 ### FinalizeDepositERC20
 
 ```solidity
-event FinalizeDepositERC20(address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256 _amount, bytes _data)
+event FinalizeDepositERC20(address indexed l1Token, address indexed l2Token, address indexed from, address to, uint256 amount, bytes data)
 ```
 
-
+Emitted when ERC20 token is deposited from L1 to L2 and transfer to recipient.
 
 
 
@@ -266,20 +253,20 @@ event FinalizeDepositERC20(address indexed _l1Token, address indexed _l2Token, a
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token `indexed` | address | undefined |
-| _l2Token `indexed` | address | undefined |
-| _from `indexed` | address | undefined |
-| _to  | address | undefined |
-| _amount  | uint256 | undefined |
-| _data  | bytes | undefined |
+| l1Token `indexed` | address | undefined |
+| l2Token `indexed` | address | undefined |
+| from `indexed` | address | undefined |
+| to  | address | undefined |
+| amount  | uint256 | undefined |
+| data  | bytes | undefined |
 
 ### WithdrawERC20
 
 ```solidity
-event WithdrawERC20(address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256 _amount, bytes _data)
+event WithdrawERC20(address indexed l1Token, address indexed l2Token, address indexed from, address to, uint256 amount, bytes data)
 ```
 
-
+Emitted when someone withdraw ERC20 token from L2 to L1.
 
 
 
@@ -287,12 +274,12 @@ event WithdrawERC20(address indexed _l1Token, address indexed _l2Token, address
 
 | Name | Type | Description |
 |---|---|---|
-| _l1Token `indexed` | address | undefined |
-| _l2Token `indexed` | address | undefined |
-| _from `indexed` | address | undefined |
-| _to  | address | undefined |
-| _amount  | uint256 | undefined |
-| _data  | bytes | undefined |
+| l1Token `indexed` | address | undefined |
+| l2Token `indexed` | address | undefined |
+| from `indexed` | address | undefined |
+| to  | address | undefined |
+| amount  | uint256 | undefined |
+| data  | bytes | undefined |
 
 
 

contracts/docs/apis/ZKRollup.md

@@ -1,594 +0,0 @@
-# ZKRollup
-
-
-
-> ZKRollup
-
-This contract maintains essential data for zk rollup, including: 1. a list of pending messages, which will be relayed to layer 2; 2. the block tree generated by layer 2 and it's status.
-
-*the message queue is not used yet, the offline relayer only use events in `L1ScrollMessenger`.*
-
-## Methods
-
-### appendMessage
-
-```solidity
-function appendMessage(address _sender, address _target, uint256 _value, uint256 _fee, uint256 _deadline, bytes _message, uint256 _gasLimit) external nonpayable returns (uint256)
-```
-
-Append a cross chain message to message queue.
-
-*This function should only be called by L1ScrollMessenger for safety.*
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _sender | address | The address of message sender in layer 1. |
-| _target | address | The address of message recipient in layer 2. |
-| _value | uint256 | The amount of ether sent to recipient in layer 2. |
-| _fee | uint256 | The amount of ether paid to relayer in layer 2. |
-| _deadline | uint256 | The deadline of the message. |
-| _message | bytes | The content of the message. |
-| _gasLimit | uint256 | Unused, but included for potential forward compatibility considerations. |
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | uint256 | undefined |
-
-### batches
-
-```solidity
-function batches(bytes32) external view returns (bytes32 batchHash, bytes32 parentHash, uint64 batchIndex, bool verified)
-```
-
-Mapping from batch id to batch struct.
-
-
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | bytes32 | undefined |
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| batchHash | bytes32 | undefined |
-| parentHash | bytes32 | undefined |
-| batchIndex | uint64 | undefined |
-| verified | bool | undefined |
-
-### blocks
-
-```solidity
-function blocks(bytes32) external view returns (bytes32 parentHash, bytes32 transactionRoot, uint64 blockHeight, uint64 batchIndex)
-```
-
-Mapping from block hash to block struct.
-
-
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | bytes32 | undefined |
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| parentHash | bytes32 | undefined |
-| transactionRoot | bytes32 | undefined |
-| blockHeight | uint64 | undefined |
-| batchIndex | uint64 | undefined |
-
-### commitBatch
-
-```solidity
-function commitBatch(IZKRollup.Layer2Batch _batch) external nonpayable
-```
-
-
-
-
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _batch | IZKRollup.Layer2Batch | undefined |
-
-### finalizeBatchWithProof
-
-```solidity
-function finalizeBatchWithProof(bytes32 _batchId, uint256[] _proof, uint256[] _instances) external nonpayable
-```
-
-finalize commited batch in layer 1
-
-*will add more parameters if needed.*
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _batchId | bytes32 | The identification of the commited batch. |
-| _proof | uint256[] | The corresponding proof of the commited batch. |
-| _instances | uint256[] | Instance used to verify, generated from batch. |
-
-### finalizedBatches
-
-```solidity
-function finalizedBatches(uint256) external view returns (bytes32)
-```
-
-Mapping from batch index to finalized batch id.
-
-
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | uint256 | undefined |
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | bytes32 | undefined |
-
-### getMessageHashByIndex
-
-```solidity
-function getMessageHashByIndex(uint256 _index) external view returns (bytes32)
-```
-
-Return the message hash by index.
-
-
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _index | uint256 | The index to query. |
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | bytes32 | undefined |
-
-### getNextQueueIndex
-
-```solidity
-function getNextQueueIndex() external view returns (uint256)
-```
-
-Return the index of the first queue element not yet executed.
-
-
-
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | uint256 | undefined |
-
-### getQeueuLength
-
-```solidity
-function getQeueuLength() external view returns (uint256)
-```
-
-Return the total number of appended message.
-
-
-
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | uint256 | undefined |
-
-### importGenesisBlock
-
-```solidity
-function importGenesisBlock(IZKRollup.Layer2BlockHeader _genesis) external nonpayable
-```
-
-
-
-
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _genesis | IZKRollup.Layer2BlockHeader | undefined |
-
-### initialize
-
-```solidity
-function initialize(uint256 _chainId) external nonpayable
-```
-
-
-
-
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _chainId | uint256 | undefined |
-
-### isBlockFinalized
-
-```solidity
-function isBlockFinalized(bytes32 _blockHash) external view returns (bool)
-```
-
-Return whether the block is finalized by block hash.
-
-
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _blockHash | bytes32 | undefined |
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | bool | undefined |
-
-### isBlockFinalized
-
-```solidity
-function isBlockFinalized(uint256 _blockHeight) external view returns (bool)
-```
-
-Return whether the block is finalized by block height.
-
-
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _blockHeight | uint256 | undefined |
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | bool | undefined |
-
-### lastFinalizedBatchID
-
-```solidity
-function lastFinalizedBatchID() external view returns (bytes32)
-```
-
-The latest finalized batch id.
-
-
-
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | bytes32 | undefined |
-
-### layer2ChainId
-
-```solidity
-function layer2ChainId() external view returns (uint256)
-```
-
-The chain id of the corresponding layer 2 chain.
-
-
-
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | uint256 | undefined |
-
-### layer2GasLimit
-
-```solidity
-function layer2GasLimit(uint256) external view returns (uint256)
-```
-
-Return the layer 2 block gas limit.
-
-
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | uint256 | undefined |
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | uint256 | undefined |
-
-### messenger
-
-```solidity
-function messenger() external view returns (address)
-```
-
-The address of L1ScrollMessenger.
-
-
-
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | address | undefined |
-
-### operator
-
-```solidity
-function operator() external view returns (address)
-```
-
-The address of operator.
-
-
-
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | address | undefined |
-
-### owner
-
-```solidity
-function owner() external view returns (address)
-```
-
-
-
-*Returns the address of the current owner.*
-
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | address | undefined |
-
-### renounceOwnership
-
-```solidity
-function renounceOwnership() external nonpayable
-```
-
-
-
-*Leaves the contract without owner. It will not be possible to call `onlyOwner` functions anymore. Can only be called by the current owner. NOTE: Renouncing ownership will leave the contract without an owner, thereby removing any functionality that is only available to the owner.*
-
-
-### revertBatch
-
-```solidity
-function revertBatch(bytes32 _batchId) external nonpayable
-```
-
-revert a pending batch.
-
-*one can only revert unfinalized batches.*
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _batchId | bytes32 | The identification of the batch. |
-
-### transferOwnership
-
-```solidity
-function transferOwnership(address newOwner) external nonpayable
-```
-
-
-
-*Transfers ownership of the contract to a new account (`newOwner`). Can only be called by the current owner.*
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| newOwner | address | undefined |
-
-### updateMessenger
-
-```solidity
-function updateMessenger(address _newMessenger) external nonpayable
-```
-
-Update the address of messenger.
-
-*This function can only called by contract owner.*
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _newMessenger | address | The new messenger address to update. |
-
-### updateOperator
-
-```solidity
-function updateOperator(address _newOperator) external nonpayable
-```
-
-Update the address of operator.
-
-*This function can only called by contract owner.*
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _newOperator | address | The new operator address to update. |
-
-### verifyMessageStateProof
-
-```solidity
-function verifyMessageStateProof(uint256 _batchIndex, uint256 _blockHeight) external view returns (bool)
-```
-
-Verify a state proof for message relay.
-
-*add more fields.*
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _batchIndex | uint256 | undefined |
-| _blockHeight | uint256 | undefined |
-
-#### Returns
-
-| Name | Type | Description |
-|---|---|---|
-| _0 | bool | undefined |
-
-
-
-## Events
-
-### CommitBatch
-
-```solidity
-event CommitBatch(bytes32 indexed _batchId, bytes32 _batchHash, uint256 _batchIndex, bytes32 _parentHash)
-```
-
-Emitted when a new batch is commited.
-
-
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _batchId `indexed` | bytes32 | undefined |
-| _batchHash  | bytes32 | undefined |
-| _batchIndex  | uint256 | undefined |
-| _parentHash  | bytes32 | undefined |
-
-### FinalizeBatch
-
-```solidity
-event FinalizeBatch(bytes32 indexed _batchId, bytes32 _batchHash, uint256 _batchIndex, bytes32 _parentHash)
-```
-
-Emitted when a batch is finalized.
-
-
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _batchId `indexed` | bytes32 | undefined |
-| _batchHash  | bytes32 | undefined |
-| _batchIndex  | uint256 | undefined |
-| _parentHash  | bytes32 | undefined |
-
-### OwnershipTransferred
-
-```solidity
-event OwnershipTransferred(address indexed previousOwner, address indexed newOwner)
-```
-
-
-
-
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| previousOwner `indexed` | address | undefined |
-| newOwner `indexed` | address | undefined |
-
-### RevertBatch
-
-```solidity
-event RevertBatch(bytes32 indexed _batchId)
-```
-
-Emitted when a batch is reverted.
-
-
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _batchId `indexed` | bytes32 | undefined |
-
-### UpdateMesssenger
-
-```solidity
-event UpdateMesssenger(address _oldMesssenger, address _newMesssenger)
-```
-
-Emitted when owner updates address of messenger
-
-
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _oldMesssenger  | address | The address of old messenger contract. |
-| _newMesssenger  | address | The address of new messenger contract. |
-
-### UpdateOperator
-
-```solidity
-event UpdateOperator(address _oldOperator, address _newOperator)
-```
-
-Emitted when owner updates address of operator
-
-
-
-#### Parameters
-
-| Name | Type | Description |
-|---|---|---|
-| _oldOperator  | address | The address of old operator. |
-| _newOperator  | address | The address of new operator. |
-
-
-

contracts/integration-test/ERC20Gateway.spec.ts

@@ -1,826 +0,0 @@
-/* eslint-disable node/no-unpublished-import */
-/* eslint-disable node/no-missing-import */
-import { SignerWithAddress } from "@nomiclabs/hardhat-ethers/signers";
-import { expect } from "chai";
-import { constants } from "ethers";
-import { keccak256 } from "ethers/lib/utils";
-import { ethers } from "hardhat";
-import {
-  ZKRollup,
-  L1ScrollMessenger,
-  L2ScrollMessenger,
-  L1StandardERC20Gateway,
-  L2StandardERC20Gateway,
-  MockERC20,
-  ScrollStandardERC20Factory,
-  ScrollStandardERC20,
-  L1WETHGateway,
-  L2WETHGateway,
-  WETH9,
-} from "../typechain";
-
-describe("ERC20Gateway", async () => {
-  const layer1GasLimit = 12345;
-  const layer2GasLimit = 54321;
-  const DROP_DELAY_DURATION = 86400 * 7;
-
-  let deployer: SignerWithAddress;
-  let alice: SignerWithAddress;
-  let bob: SignerWithAddress;
-  let router: SignerWithAddress;
-
-  let rollup: ZKRollup;
-  let l1Messenger: L1ScrollMessenger;
-  let l2Messenger: L2ScrollMessenger;
-
-  beforeEach(async () => {
-    [deployer, alice, bob, router] = await ethers.getSigners();
-
-    const RollupVerifier = await ethers.getContractFactory("RollupVerifier", deployer);
-    const verifier = await RollupVerifier.deploy();
-    await verifier.deployed();
-
-    // deploy ZKRollup in layer 1
-    const ZKRollup = await ethers.getContractFactory("ZKRollup", {
-      signer: deployer,
-      libraries: { RollupVerifier: verifier.address },
-    });
-    rollup = (await ZKRollup.deploy()) as ZKRollup;
-    await rollup.initialize(233);
-    await rollup.importGenesisBlock({
-      blockHash: keccak256(constants.HashZero),
-      parentHash: constants.HashZero,
-      baseFee: 0,
-      stateRoot: constants.HashZero,
-      blockHeight: 0,
-      gasUsed: 0,
-      timestamp: 0,
-      extraData: "0x",
-      txs: [],
-    });
-
-    // deploy L1ScrollMessenger in layer 1
-    const L1ScrollMessenger = await ethers.getContractFactory("L1ScrollMessenger", deployer);
-    l1Messenger = await L1ScrollMessenger.deploy();
-    await l1Messenger.initialize(rollup.address);
-    await rollup.updateMessenger(l1Messenger.address);
-
-    // deploy L2ScrollMessenger in layer 2
-    const L2ScrollMessenger = await ethers.getContractFactory("L2ScrollMessenger", deployer);
-    l2Messenger = await L2ScrollMessenger.deploy(deployer.address);
-  });
-
-  context("StandardERC20Gateway", async () => {
-    let l1Gateway: L1StandardERC20Gateway;
-    let l2Gateway: L2StandardERC20Gateway;
-
-    let factory: ScrollStandardERC20Factory;
-
-    beforeEach(async () => {
-      // deploy token template in layer 2
-      const ScrollStandardERC20 = await ethers.getContractFactory("ScrollStandardERC20", deployer);
-      const tokenImpl = await ScrollStandardERC20.deploy();
-
-      // deploy token factory in layer 2
-      const ScrollStandardERC20Factory = await ethers.getContractFactory("ScrollStandardERC20Factory", deployer);
-      factory = await ScrollStandardERC20Factory.deploy(tokenImpl.address);
-
-      // deploy gateway in layer 1
-      const L1StandardERC20Gateway = await ethers.getContractFactory("L1StandardERC20Gateway", deployer);
-      l1Gateway = await L1StandardERC20Gateway.deploy();
-
-      // deploy gateway in layer 2
-      const L2StandardERC20Gateway = await ethers.getContractFactory("L2StandardERC20Gateway", deployer);
-      l2Gateway = await L2StandardERC20Gateway.deploy();
-
-      // initialize gateway in layer 1
-      await l1Gateway.initialize(
-        l2Gateway.address,
-        router.address,
-        l1Messenger.address,
-        tokenImpl.address,
-        factory.address
-      );
-
-      // initialize gateway in layer 2
-      await l2Gateway.initialize(l1Gateway.address, router.address, l2Messenger.address, factory.address);
-
-      await factory.transferOwnership(l2Gateway.address);
-    });
-
-    const run1to2 = async (decimals: number, sendToSelf: boolean) => {
-      context(`layer 1 to layer 2: decimals[${decimals}], sendToSelf[${sendToSelf}]`, async () => {
-        let l1Token: MockERC20;
-        let l2Token: ScrollStandardERC20;
-        let recipient: SignerWithAddress;
-
-        const amount1 = ethers.utils.parseUnits("1000", decimals);
-        const amount2 = ethers.utils.parseUnits("100", decimals);
-
-        beforeEach(async () => {
-          recipient = sendToSelf ? alice : bob;
-
-          // deploy mock token in layer 1
-          const MockERC20 = await ethers.getContractFactory("MockERC20", deployer);
-          l1Token = await MockERC20.deploy("XYZ", "ZYX", decimals);
-          await l1Token.mint(alice.address, amount1.add(amount2));
-
-          // calculate l2 token address
-          l2Token = await ethers.getContractAt(
-            "ScrollStandardERC20",
-            await l2Gateway.getL2ERC20Address(l1Token.address),
-            deployer
-          );
-        });
-
-        it("should succeed, when transfer on the first time", async () => {
-          // 1. approve
-          await l1Token.connect(alice).approve(l1Gateway.address, amount1);
-
-          // 2. do deposit
-          const nonce = await rollup.getQeueuLength();
-          const beforeBalanceLayer1 = await l1Token.balanceOf(l1Gateway.address);
-          const depositTx = sendToSelf
-            ? await l1Gateway
-                .connect(alice)
-                ["depositERC20(address,uint256,uint256)"](l1Token.address, amount1, layer1GasLimit)
-            : await l1Gateway
-                .connect(alice)
-                ["depositERC20(address,address,uint256,uint256)"](
-                  l1Token.address,
-                  recipient.address,
-                  amount1,
-                  layer1GasLimit
-                );
-          await depositTx.wait();
-          const afterBalanceLayer1 = await l1Token.balanceOf(l1Gateway.address);
-          // should emit DepositERC20
-          await expect(depositTx)
-            .to.emit(l1Gateway, "DepositERC20")
-            .withArgs(l1Token.address, l2Token.address, alice.address, recipient.address, amount1, "0x");
-          // should emit SentMessage
-          const symbol = await l1Token.symbol();
-          const name = await l1Token.name();
-          const deployData = ethers.utils.defaultAbiCoder.encode(
-            ["string", "string", "uint8"],
-            [symbol, name, decimals]
-          );
-          const deadline = (await ethers.provider.getBlock("latest")).timestamp + DROP_DELAY_DURATION;
-          const messageData = l2Gateway.interface.encodeFunctionData("finalizeDepositERC20", [
-            l1Token.address,
-            l2Token.address,
-            alice.address,
-            recipient.address,
-            amount1,
-            ethers.utils.defaultAbiCoder.encode(["bytes", "bytes"], ["0x", deployData]),
-          ]);
-          await expect(depositTx)
-            .to.emit(l1Messenger, "SentMessage")
-            .withArgs(l2Gateway.address, l1Gateway.address, 0, 0, deadline, messageData, nonce, layer1GasLimit);
-          // should transfer token in gateway
-          expect(afterBalanceLayer1.sub(beforeBalanceLayer1)).to.eq(amount1);
-
-          // 3. do relay in layer 2
-          const beforeBalanceLayer2 = constants.Zero;
-          const relayTx = await l2Messenger.relayMessage(
-            l1Gateway.address,
-            l2Gateway.address,
-            0,
-            0,
-            deadline,
-            nonce,
-            messageData
-          );
-          await relayTx.wait();
-          const afterBalanceLayer2 = await l2Token.balanceOf(recipient.address);
-          // should emit RelayedMessage
-          await expect(relayTx).to.emit(l2Messenger, "RelayedMessage");
-          // should emit FinalizeDepositERC20
-          await expect(relayTx)
-            .to.emit(l2Gateway, "FinalizeDepositERC20")
-            .withArgs(l1Token.address, l2Token.address, alice.address, recipient.address, amount1, "0x");
-          // should deploy token in layer 2
-          expect(await l2Token.symbol()).to.eq(symbol);
-          expect(await l2Token.name()).to.eq(name);
-          expect(await l2Token.decimals()).to.eq(decimals);
-          // should mint in layer 2
-          expect(afterBalanceLayer2.sub(beforeBalanceLayer2)).to.eq(amount1);
-        });
-
-        it("should succeed, when transfer on the second time", async () => {
-          // 1. approve first time
-          await l1Token.connect(alice).approve(l1Gateway.address, amount1);
-
-          // 2. do deposit first time
-          const nonce1 = await rollup.getQeueuLength();
-          let beforeBalanceLayer1 = await l1Token.balanceOf(l1Gateway.address);
-          const depositTx1 = sendToSelf
-            ? await l1Gateway
-                .connect(alice)
-                ["depositERC20(address,uint256,uint256)"](l1Token.address, amount1, layer1GasLimit)
-            : await l1Gateway
-                .connect(alice)
-                ["depositERC20(address,address,uint256,uint256)"](
-                  l1Token.address,
-                  recipient.address,
-                  amount1,
-                  layer1GasLimit
-                );
-          await depositTx1.wait();
-          let afterBalanceLayer1 = await l1Token.balanceOf(l1Gateway.address);
-          const symbol = await l1Token.symbol();
-          const name = await l1Token.name();
-          const deployData = ethers.utils.defaultAbiCoder.encode(
-            ["string", "string", "uint8"],
-            [symbol, name, decimals]
-          );
-          const deadline1 = (await ethers.provider.getBlock("latest")).timestamp + DROP_DELAY_DURATION;
-          const messageData1 = l2Gateway.interface.encodeFunctionData("finalizeDepositERC20", [
-            l1Token.address,
-            l2Token.address,
-            alice.address,
-            recipient.address,
-            amount1,
-            ethers.utils.defaultAbiCoder.encode(["bytes", "bytes"], ["0x", deployData]),
-          ]);
-          // should transfer token in gateway
-          expect(afterBalanceLayer1.sub(beforeBalanceLayer1)).to.eq(amount1);
-
-          // 3. do relay in layer 2 first time
-          let beforeBalanceLayer2 = constants.Zero;
-          const relayTx1 = await l2Messenger.relayMessage(
-            l1Gateway.address,
-            l2Gateway.address,
-            0,
-            0,
-            deadline1,
-            nonce1,
-            messageData1
-          );
-          await relayTx1.wait();
-          let afterBalanceLayer2 = await l2Token.balanceOf(recipient.address);
-          expect(afterBalanceLayer2.sub(beforeBalanceLayer2)).to.eq(amount1);
-
-          // 4. approve second time
-          await l1Token.connect(alice).approve(l1Gateway.address, amount2);
-
-          // 5. do deposit second time
-          const calldata = "0x000033";
-          const nonce2 = await rollup.getQeueuLength();
-          beforeBalanceLayer1 = await l1Token.balanceOf(l1Gateway.address);
-          const depositTx2 = await l1Gateway
-            .connect(alice)
-            .depositERC20AndCall(l1Token.address, recipient.address, amount2, calldata, layer1GasLimit);
-          await depositTx2.wait();
-          afterBalanceLayer1 = await l1Token.balanceOf(l1Gateway.address);
-          // should emit DepositERC20
-          await expect(depositTx2)
-            .to.emit(l1Gateway, "DepositERC20")
-            .withArgs(l1Token.address, l2Token.address, alice.address, recipient.address, amount2, calldata);
-          // should emit SentMessage
-          const deadline2 = (await ethers.provider.getBlock("latest")).timestamp + DROP_DELAY_DURATION;
-          const messageData2 = l2Gateway.interface.encodeFunctionData("finalizeDepositERC20", [
-            l1Token.address,
-            l2Token.address,
-            alice.address,
-            recipient.address,
-            amount2,
-            calldata,
-          ]);
-          await expect(depositTx2)
-            .to.emit(l1Messenger, "SentMessage")
-            .withArgs(l2Gateway.address, l1Gateway.address, 0, 0, deadline2, messageData2, nonce2, layer1GasLimit);
-          // should transfer token in gateway
-          expect(afterBalanceLayer1.sub(beforeBalanceLayer1)).to.eq(amount2);
-
-          // 3. do relay in layer 2
-          beforeBalanceLayer2 = await l2Token.balanceOf(recipient.address);
-          const relayTx2 = await l2Messenger.relayMessage(
-            l1Gateway.address,
-            l2Gateway.address,
-            0,
-            0,
-            deadline2,
-            nonce2,
-            messageData2
-          );
-          await relayTx2.wait();
-          afterBalanceLayer2 = await l2Token.balanceOf(recipient.address);
-          // should emit RelayedMessage
-          await expect(relayTx2).to.emit(l2Messenger, "RelayedMessage");
-          // should emit FinalizeDepositERC20
-          await expect(relayTx2)
-            .to.emit(l2Gateway, "FinalizeDepositERC20")
-            .withArgs(l1Token.address, l2Token.address, alice.address, recipient.address, amount2, calldata);
-          // should mint in layer 2
-          expect(afterBalanceLayer2.sub(beforeBalanceLayer2)).to.eq(amount2);
-        });
-      });
-    };
-
-    const run2to1 = async (decimals: number, sendToSelf: boolean) => {
-      context(`layer 2 to layer 1: decimals[${decimals}], sendToSelf[${sendToSelf}]`, async () => {
-        let l1Token: MockERC20;
-        let l2Token: ScrollStandardERC20;
-        let recipient: SignerWithAddress;
-
-        const amount = ethers.utils.parseUnits("1000", decimals);
-
-        beforeEach(async () => {
-          recipient = sendToSelf ? alice : bob;
-
-          // deploy mock token in layer 1
-          const MockERC20 = await ethers.getContractFactory("MockERC20", deployer);
-          l1Token = await MockERC20.deploy("XYZ", "ZYX", decimals);
-          await l1Token.mint(alice.address, amount);
-
-          // calculate l2 token address
-          l2Token = await ethers.getContractAt(
-            "ScrollStandardERC20",
-            await l2Gateway.getL2ERC20Address(l1Token.address),
-            deployer
-          );
-
-          await l1Token.connect(alice).approve(l1Gateway.address, constants.MaxUint256);
-          const depositTx = await l1Gateway
-            .connect(alice)
-            ["depositERC20(address,uint256,uint256)"](l1Token.address, amount, layer1GasLimit);
-          await depositTx.wait();
-          const symbol = await l1Token.symbol();
-          const name = await l1Token.name();
-          const deployData = ethers.utils.defaultAbiCoder.encode(
-            ["string", "string", "uint8"],
-            [symbol, name, decimals]
-          );
-          const deadline = (await ethers.provider.getBlock("latest")).timestamp + DROP_DELAY_DURATION;
-          const nonce = await rollup.getQeueuLength();
-          const messageData = l2Gateway.interface.encodeFunctionData("finalizeDepositERC20", [
-            l1Token.address,
-            l2Token.address,
-            alice.address,
-            alice.address,
-            amount,
-            ethers.utils.defaultAbiCoder.encode(["bytes", "bytes"], ["0x", deployData]),
-          ]);
-          const relayTx = await l2Messenger.relayMessage(
-            l1Gateway.address,
-            l2Gateway.address,
-            0,
-            0,
-            deadline,
-            nonce,
-            messageData
-          );
-          await relayTx.wait();
-
-          expect(await l2Token.balanceOf(alice.address)).to.eq(amount);
-        });
-
-        it("should succeed, when transfer without data", async () => {
-          // 1. approve
-          await l2Token.connect(alice).approve(l2Gateway.address, amount);
-
-          // 2. withdraw
-          const nonce = await l2Messenger.messageNonce();
-          const balanceBefore = await l2Token.balanceOf(alice.address);
-          const withdrawTx = sendToSelf
-            ? await l2Gateway
-                .connect(alice)
-                ["withdrawERC20(address,uint256,uint256)"](l2Token.address, amount, layer2GasLimit)
-            : await l2Gateway
-                .connect(alice)
-                ["withdrawERC20(address,address,uint256,uint256)"](
-                  l2Token.address,
-                  recipient.address,
-                  amount,
-                  layer2GasLimit
-                );
-          await withdrawTx.wait();
-          const deadline = (await ethers.provider.getBlock("latest")).timestamp + DROP_DELAY_DURATION;
-          const balanceAfter = await l2Token.balanceOf(alice.address);
-          // should emit WithdrawERC20
-          await expect(withdrawTx)
-            .to.emit(l2Gateway, "WithdrawERC20")
-            .withArgs(l1Token.address, l2Token.address, alice.address, recipient.address, amount, "0x");
-          // should emit SentMessage
-          const messageData = l1Gateway.interface.encodeFunctionData("finalizeWithdrawERC20", [
-            l1Token.address,
-            l2Token.address,
-            alice.address,
-            recipient.address,
-            amount,
-            "0x",
-          ]);
-          await expect(withdrawTx)
-            .to.emit(l2Messenger, "SentMessage")
-            .withArgs(l1Gateway.address, l2Gateway.address, 0, 0, deadline, messageData, nonce, layer2GasLimit);
-          // should transfer from alice
-          expect(balanceBefore.sub(balanceAfter)).to.eq(amount);
-
-          // 3. relay in layer 1
-          const relayTx = await l1Messenger.relayMessageWithProof(
-            l2Gateway.address,
-            l1Gateway.address,
-            0,
-            0,
-            deadline,
-            nonce,
-            messageData,
-            { batchIndex: 0, blockHeight: 0, merkleProof: "0x" }
-          );
-          await relayTx.wait();
-          // should emit RelayedMessage
-          await expect(relayTx).to.emit(l1Messenger, "RelayedMessage");
-          // should emit FinalizeWithdrawERC20
-          await expect(relayTx)
-            .to.emit(l1Gateway, "FinalizeWithdrawERC20")
-            .withArgs(l1Token.address, l2Token.address, alice.address, recipient.address, amount, "0x");
-          // should transfer out
-          expect(await l1Token.balanceOf(l1Gateway.address)).to.eq(0);
-          expect(await l1Token.balanceOf(recipient.address)).to.eq(amount);
-        });
-
-        it("should succeed, when transfer with data", async () => {
-          const calldata = "0x3d4233433232";
-          // 1. approve
-          await l2Token.connect(alice).approve(l2Gateway.address, amount);
-
-          // 2. withdraw
-          const nonce = await l2Messenger.messageNonce();
-          const withdrawTx = await l2Gateway
-            .connect(alice)
-            .withdrawERC20AndCall(l2Token.address, recipient.address, amount, calldata, layer2GasLimit);
-          await withdrawTx.wait();
-          const deadline = (await ethers.provider.getBlock("latest")).timestamp + DROP_DELAY_DURATION;
-          // should emit WithdrawERC20
-          await expect(withdrawTx)
-            .to.emit(l2Gateway, "WithdrawERC20")
-            .withArgs(l1Token.address, l2Token.address, alice.address, recipient.address, amount, calldata);
-          // should emit SentMessage
-          const messageData = l1Gateway.interface.encodeFunctionData("finalizeWithdrawERC20", [
-            l1Token.address,
-            l2Token.address,
-            alice.address,
-            recipient.address,
-            amount,
-            calldata,
-          ]);
-          await expect(withdrawTx)
-            .to.emit(l2Messenger, "SentMessage")
-            .withArgs(l1Gateway.address, l2Gateway.address, 0, 0, deadline, messageData, nonce, layer2GasLimit);
-
-          // 3. relay in layer 1
-          const relayTx = await l1Messenger.relayMessageWithProof(
-            l2Gateway.address,
-            l1Gateway.address,
-            0,
-            0,
-            deadline,
-            nonce,
-            messageData,
-            { batchIndex: 0, blockHeight: 0, merkleProof: "0x" }
-          );
-          await relayTx.wait();
-          // should emit RelayedMessage
-          await expect(relayTx).to.emit(l1Messenger, "RelayedMessage");
-          // should emit FinalizeWithdrawERC20
-          await expect(relayTx)
-            .to.emit(l1Gateway, "FinalizeWithdrawERC20")
-            .withArgs(l1Token.address, l2Token.address, alice.address, recipient.address, amount, calldata);
-          // should transfer out
-          expect(await l1Token.balanceOf(l1Gateway.address)).to.eq(0);
-          expect(await l1Token.balanceOf(recipient.address)).to.eq(amount);
-        });
-      });
-    };
-
-    for (const decimals of [6, 18, 24]) {
-      for (const sendToSelf of [true, false]) {
-        run1to2(decimals, sendToSelf);
-        run2to1(decimals, sendToSelf);
-      }
-    }
-  });
-
-  context("WETHGateway", async () => {
-    let l1Gateway: L1WETHGateway;
-    let l2Gateway: L2WETHGateway;
-    let l1WETH: WETH9;
-    let l2WETH: WETH9;
-
-    beforeEach(async () => {
-      // deploy weth in layer 1 and layer 2
-      const WETH9 = await ethers.getContractFactory("WETH9", deployer);
-      l1WETH = await WETH9.deploy();
-      l2WETH = await WETH9.deploy();
-
-      // deploy gateway in layer 1
-      const L1WETHGateway = await ethers.getContractFactory("L1WETHGateway", deployer);
-      l1Gateway = await L1WETHGateway.deploy();
-
-      // deploy gateway in layer 2
-      const L2WETHGateway = await ethers.getContractFactory("L2WETHGateway", deployer);
-      l2Gateway = await L2WETHGateway.deploy();
-
-      // initialize gateway in layer 1
-      await l1Gateway.initialize(
-        l2Gateway.address,
-        router.address,
-        l1Messenger.address,
-        l1WETH.address,
-        l2WETH.address
-      );
-
-      // initialize gateway in layer 2
-      await l2Gateway.initialize(
-        l1Gateway.address,
-        router.address,
-        l2Messenger.address,
-        l2WETH.address,
-        l1WETH.address
-      );
-    });
-
-    const run1to2 = async (sendToSelf: boolean) => {
-      context(`layer 1 to layer 2: sendToSelf[${sendToSelf}]`, async () => {
-        const amount = ethers.utils.parseEther("100");
-        let recipient: SignerWithAddress;
-
-        beforeEach(async () => {
-          recipient = sendToSelf ? alice : bob;
-
-          if ((await ethers.provider.getBalance(l2Messenger.address)).eq(constants.Zero)) {
-            await deployer.sendTransaction({ to: l2Messenger.address, value: amount });
-            await l1WETH.connect(alice).deposit({ value: amount });
-          }
-
-          expect(await ethers.provider.getBalance(l2Messenger.address)).to.eq(amount);
-        });
-
-        it("should transfer to layer 2 without data", async () => {
-          // 1. deposit and approve
-          await l1WETH.connect(alice).approve(l1Gateway.address, amount);
-
-          // 2. do deposit
-          const nonce = await rollup.getQeueuLength();
-          const beforeBalanceLayer1 = await ethers.provider.getBalance(l1Messenger.address);
-          const depositTx = sendToSelf
-            ? await l1Gateway
-                .connect(alice)
-                ["depositERC20(address,uint256,uint256)"](l1WETH.address, amount, layer1GasLimit)
-            : await l1Gateway
-                .connect(alice)
-                ["depositERC20(address,address,uint256,uint256)"](
-                  l1WETH.address,
-                  recipient.address,
-                  amount,
-                  layer1GasLimit
-                );
-          await depositTx.wait();
-          const afterBalanceLayer1 = await ethers.provider.getBalance(l1Messenger.address);
-          // should emit DepositERC20
-          await expect(depositTx)
-            .to.emit(l1Gateway, "DepositERC20")
-            .withArgs(l1WETH.address, l2WETH.address, alice.address, recipient.address, amount, "0x");
-          // should emit SentMessage
-          const deadline = (await ethers.provider.getBlock("latest")).timestamp + DROP_DELAY_DURATION;
-          const messageData = l2Gateway.interface.encodeFunctionData("finalizeDepositERC20", [
-            l1WETH.address,
-            l2WETH.address,
-            alice.address,
-            recipient.address,
-            amount,
-            "0x",
-          ]);
-          await expect(depositTx)
-            .to.emit(l1Messenger, "SentMessage")
-            .withArgs(l2Gateway.address, l1Gateway.address, amount, 0, deadline, messageData, nonce, layer1GasLimit);
-          // should unwrap transfer to messenger
-          expect(afterBalanceLayer1.sub(beforeBalanceLayer1)).to.eq(amount);
-
-          // 3. do relay in layer 2
-          const beforeBalanceLayer2 = await l2WETH.balanceOf(recipient.address);
-          const relayTx = await l2Messenger.relayMessage(
-            l1Gateway.address,
-            l2Gateway.address,
-            amount,
-            0,
-            deadline,
-            nonce,
-            messageData
-          );
-          await relayTx.wait();
-          const afterBalanceLayer2 = await l2WETH.balanceOf(recipient.address);
-          // should emit RelayedMessage
-          await expect(relayTx).to.emit(l2Messenger, "RelayedMessage");
-          // should emit FinalizeDepositERC20
-          await expect(relayTx)
-            .to.emit(l2Gateway, "FinalizeDepositERC20")
-            .withArgs(l1WETH.address, l2WETH.address, alice.address, recipient.address, amount, "0x");
-          // should transfer and wrap weth in layer 2
-          expect(afterBalanceLayer2.sub(beforeBalanceLayer2)).to.eq(amount);
-          expect(await ethers.provider.getBalance(l2Messenger.address)).to.eq(constants.Zero);
-        });
-
-        it("should transfer to layer 2 data", async () => {
-          const calldata = "0x3333444555fdad";
-          // 1. deposit and approve
-          await l1WETH.connect(alice).approve(l1Gateway.address, amount);
-
-          // 2. do deposit
-          const nonce = await rollup.getQeueuLength();
-          const beforeBalanceLayer1 = await ethers.provider.getBalance(l1Messenger.address);
-          const depositTx = await l1Gateway
-            .connect(alice)
-            .depositERC20AndCall(l1WETH.address, recipient.address, amount, calldata, layer1GasLimit);
-          await depositTx.wait();
-          const afterBalanceLayer1 = await ethers.provider.getBalance(l1Messenger.address);
-          // should emit DepositERC20
-          await expect(depositTx)
-            .to.emit(l1Gateway, "DepositERC20")
-            .withArgs(l1WETH.address, l2WETH.address, alice.address, recipient.address, amount, calldata);
-          // should emit SentMessage
-          const deadline = (await ethers.provider.getBlock("latest")).timestamp + DROP_DELAY_DURATION;
-          const messageData = l2Gateway.interface.encodeFunctionData("finalizeDepositERC20", [
-            l1WETH.address,
-            l2WETH.address,
-            alice.address,
-            recipient.address,
-            amount,
-            calldata,
-          ]);
-          await expect(depositTx)
-            .to.emit(l1Messenger, "SentMessage")
-            .withArgs(l2Gateway.address, l1Gateway.address, amount, 0, deadline, messageData, nonce, layer1GasLimit);
-          // should unwrap transfer to messenger
-          expect(afterBalanceLayer1.sub(beforeBalanceLayer1)).to.eq(amount);
-
-          // 3. do relay in layer 2
-          const beforeBalanceLayer2 = await l2WETH.balanceOf(recipient.address);
-          const relayTx = await l2Messenger.relayMessage(
-            l1Gateway.address,
-            l2Gateway.address,
-            amount,
-            0,
-            deadline,
-            nonce,
-            messageData
-          );
-          await relayTx.wait();
-          const afterBalanceLayer2 = await l2WETH.balanceOf(recipient.address);
-          // should emit RelayedMessage
-          await expect(relayTx).to.emit(l2Messenger, "RelayedMessage");
-          // should emit FinalizeDepositERC20
-          await expect(relayTx)
-            .to.emit(l2Gateway, "FinalizeDepositERC20")
-            .withArgs(l1WETH.address, l2WETH.address, alice.address, recipient.address, amount, calldata);
-          // should transfer and wrap weth in layer 2
-          expect(afterBalanceLayer2.sub(beforeBalanceLayer2)).to.eq(amount);
-          expect(await ethers.provider.getBalance(l2Messenger.address)).to.eq(constants.Zero);
-        });
-      });
-    };
-
-    const run2to1 = async (sendToSelf: boolean) => {
-      context(`layer 2 to layer 1: sendToSelf[${sendToSelf}]`, async () => {
-        const amount = ethers.utils.parseEther("100");
-        let recipient: SignerWithAddress;
-
-        beforeEach(async () => {
-          recipient = sendToSelf ? alice : bob;
-          await l1WETH.connect(alice).deposit({ value: amount });
-          await l1WETH.connect(alice).approve(l1Gateway.address, amount);
-          await l1Gateway.connect(alice)["depositERC20(address,uint256,uint256)"](l1WETH.address, amount, 0);
-          await l2WETH.connect(alice).deposit({ value: amount });
-        });
-
-        it("should transfer to layer 1 without data", async () => {
-          // 1. approve
-          await l2WETH.connect(alice).approve(l2Gateway.address, amount);
-
-          // 2. do withdraw in layer 2
-          const nonce = await l2Messenger.messageNonce();
-          const beforeBalanceLayer2 = await ethers.provider.getBalance(l2Messenger.address);
-          const withdrawTx = sendToSelf
-            ? await l2Gateway
-                .connect(alice)
-                ["withdrawERC20(address,uint256,uint256)"](l2WETH.address, amount, layer2GasLimit)
-            : await l2Gateway
-                .connect(alice)
-                ["withdrawERC20(address,address,uint256,uint256)"](
-                  l2WETH.address,
-                  recipient.address,
-                  amount,
-                  layer2GasLimit
-                );
-          await withdrawTx.wait();
-          const afterBalanceLayer2 = await ethers.provider.getBalance(l2Messenger.address);
-          // should emit WithdrawERC20
-          await expect(withdrawTx)
-            .to.emit(l2Gateway, "WithdrawERC20")
-            .withArgs(l1WETH.address, l2WETH.address, alice.address, recipient.address, amount, "0x");
-          // should emit SentMessage
-          const deadline = (await ethers.provider.getBlock("latest")).timestamp + DROP_DELAY_DURATION;
-          const messageData = l1Gateway.interface.encodeFunctionData("finalizeWithdrawERC20", [
-            l1WETH.address,
-            l2WETH.address,
-            alice.address,
-            recipient.address,
-            amount,
-            "0x",
-          ]);
-          await expect(withdrawTx)
-            .to.emit(l2Messenger, "SentMessage")
-            .withArgs(l1Gateway.address, l2Gateway.address, amount, 0, deadline, messageData, nonce, layer2GasLimit);
-          // should unwrap transfer to messenger
-          expect(afterBalanceLayer2.sub(beforeBalanceLayer2)).to.eq(amount);
-
-          // 3. do relay in layer 1
-          const beforeBalanceLayer1 = await l1WETH.balanceOf(recipient.address);
-          const relayTx = await l1Messenger.relayMessageWithProof(
-            l2Gateway.address,
-            l1Gateway.address,
-            amount,
-            0,
-            deadline,
-            nonce,
-            messageData,
-            { batchIndex: 0, blockHeight: 0, merkleProof: "0x" }
-          );
-          await relayTx.wait();
-          const afterBalanceLayer1 = await l1WETH.balanceOf(recipient.address);
-          // should emit RelayedMessage
-          await expect(relayTx).to.emit(l1Messenger, "RelayedMessage");
-          // should emit FinalizeWithdrawERC20
-          await expect(relayTx)
-            .to.emit(l1Gateway, "FinalizeWithdrawERC20")
-            .withArgs(l1WETH.address, l2WETH.address, alice.address, recipient.address, amount, "0x");
-          // should transfer and wrap weth in layer 1
-          expect(afterBalanceLayer1.sub(beforeBalanceLayer1)).to.eq(amount);
-        });
-
-        it("should transfer to layer 1 with data", async () => {
-          const calldata = "0x33445566778899";
-          // 1. approve
-          await l2WETH.connect(alice).approve(l2Gateway.address, amount);
-
-          // 2. do withdraw in layer 2
-          const nonce = await l2Messenger.messageNonce();
-          const beforeBalanceLayer2 = await ethers.provider.getBalance(l2Messenger.address);
-          const withdrawTx = await l2Gateway
-            .connect(alice)
-            .withdrawERC20AndCall(l2WETH.address, recipient.address, amount, calldata, layer2GasLimit);
-          await withdrawTx.wait();
-          const afterBalanceLayer2 = await ethers.provider.getBalance(l2Messenger.address);
-          // should emit WithdrawERC20
-          await expect(withdrawTx)
-            .to.emit(l2Gateway, "WithdrawERC20")
-            .withArgs(l1WETH.address, l2WETH.address, alice.address, recipient.address, amount, calldata);
-          // should emit SentMessage
-          const deadline = (await ethers.provider.getBlock("latest")).timestamp + DROP_DELAY_DURATION;
-          const messageData = l1Gateway.interface.encodeFunctionData("finalizeWithdrawERC20", [
-            l1WETH.address,
-            l2WETH.address,
-            alice.address,
-            recipient.address,
-            amount,
-            calldata,
-          ]);
-          await expect(withdrawTx)
-            .to.emit(l2Messenger, "SentMessage")
-            .withArgs(l1Gateway.address, l2Gateway.address, amount, 0, deadline, messageData, nonce, layer2GasLimit);
-          // should unwrap transfer to messenger
-          expect(afterBalanceLayer2.sub(beforeBalanceLayer2)).to.eq(amount);
-
-          // 3. do relay in layer 1
-          const beforeBalanceLayer1 = await l1WETH.balanceOf(recipient.address);
-          const relayTx = await l1Messenger.relayMessageWithProof(
-            l2Gateway.address,
-            l1Gateway.address,
-            amount,
-            0,
-            deadline,
-            nonce,
-            messageData,
-            { batchIndex: 0, blockHeight: 0, merkleProof: "0x" }
-          );
-          await relayTx.wait();
-          const afterBalanceLayer1 = await l1WETH.balanceOf(recipient.address);
-          // should emit RelayedMessage
-          await expect(relayTx).to.emit(l1Messenger, "RelayedMessage");
-          // should emit FinalizeWithdrawERC20
-          await expect(relayTx)
-            .to.emit(l1Gateway, "FinalizeWithdrawERC20")
-            .withArgs(l1WETH.address, l2WETH.address, alice.address, recipient.address, amount, calldata);
-          // should transfer and wrap weth in layer 1
-          expect(afterBalanceLayer1.sub(beforeBalanceLayer1)).to.eq(amount);
-        });
-      });
-    };
-
-    for (const sendToSelf of [true, false]) {
-      run1to2(sendToSelf);
-      run2to1(sendToSelf);
-    }
-  });
-});

contracts/integration-test/GatewayRouter.spec.ts

@@ -1,220 +0,0 @@
-/* eslint-disable node/no-unpublished-import */
-/* eslint-disable node/no-missing-import */
-import { SignerWithAddress } from "@nomiclabs/hardhat-ethers/signers";
-import { expect } from "chai";
-import { constants } from "ethers";
-import { keccak256 } from "ethers/lib/utils";
-import { ethers } from "hardhat";
-import { ZKRollup, L1ScrollMessenger, L2ScrollMessenger, L1GatewayRouter, L2GatewayRouter } from "../typechain";
-
-describe("GatewayRouter", async () => {
-  const layer1GasLimit = 12345;
-  const layer2GasLimit = 54321;
-  const DROP_DELAY_DURATION = 86400 * 7;
-
-  let deployer: SignerWithAddress;
-  let alice: SignerWithAddress;
-  let bob: SignerWithAddress;
-
-  let rollup: ZKRollup;
-  let l1Messenger: L1ScrollMessenger;
-  let l2Messenger: L2ScrollMessenger;
-
-  beforeEach(async () => {
-    [deployer, alice, bob] = await ethers.getSigners();
-
-    const RollupVerifier = await ethers.getContractFactory("RollupVerifier", deployer);
-    const verifier = await RollupVerifier.deploy();
-    await verifier.deployed();
-
-    // deploy ZKRollup in layer 1
-    const ZKRollup = await ethers.getContractFactory("ZKRollup", {
-      signer: deployer,
-      libraries: { RollupVerifier: verifier.address },
-    });
-    rollup = (await ZKRollup.deploy()) as ZKRollup;
-    await rollup.initialize(233);
-    await rollup.importGenesisBlock({
-      blockHash: keccak256(constants.HashZero),
-      parentHash: constants.HashZero,
-      baseFee: 0,
-      stateRoot: constants.HashZero,
-      blockHeight: 0,
-      gasUsed: 0,
-      timestamp: 0,
-      extraData: "0x",
-      txs: []
-    });
-
-    // deploy L1ScrollMessenger in layer 1
-    const L1ScrollMessenger = await ethers.getContractFactory("L1ScrollMessenger", deployer);
-    l1Messenger = await L1ScrollMessenger.deploy();
-    await l1Messenger.initialize(rollup.address);
-    await rollup.updateMessenger(l1Messenger.address);
-
-    // deploy L2ScrollMessenger in layer 2
-    const L2ScrollMessenger = await ethers.getContractFactory("L2ScrollMessenger", deployer);
-    l2Messenger = await L2ScrollMessenger.deploy(deployer.address);
-  });
-
-  context("WETHGateway", async () => {
-    let l1Gateway: L1GatewayRouter;
-    let l2Gateway: L2GatewayRouter;
-
-    beforeEach(async () => {
-      // deploy gateway in layer 1
-      const L1GatewayRouter = await ethers.getContractFactory("L1GatewayRouter", deployer);
-      l1Gateway = await L1GatewayRouter.deploy();
-
-      // deploy gateway in layer 2
-      const L2GatewayRouter = await ethers.getContractFactory("L2GatewayRouter", deployer);
-      l2Gateway = await L2GatewayRouter.deploy();
-
-      // initialize gateway in layer 1
-      await l1Gateway.initialize(constants.AddressZero, l2Gateway.address, l1Messenger.address);
-
-      // initialize gateway in layer 2
-      await l2Gateway.initialize(constants.AddressZero, l1Gateway.address, l2Messenger.address);
-    });
-
-    const run1to2 = async (sendToSelf: boolean) => {
-      context(`layer 1 to layer 2: sendToSelf[${sendToSelf}]`, async () => {
-        const amount = ethers.utils.parseEther("100");
-        let recipient: SignerWithAddress;
-
-        beforeEach(async () => {
-          recipient = sendToSelf ? alice : bob;
-
-          if ((await ethers.provider.getBalance(l2Messenger.address)).eq(constants.Zero)) {
-            await deployer.sendTransaction({ to: l2Messenger.address, value: amount });
-          }
-
-          expect(await ethers.provider.getBalance(l2Messenger.address)).to.eq(amount);
-        });
-
-        it("should transfer to layer 2 without data", async () => {
-          // 2. do deposit
-          const nonce = await rollup.getQeueuLength();
-          const beforeBalanceLayer1 = await ethers.provider.getBalance(l1Messenger.address);
-          const depositTx = sendToSelf
-            ? await l1Gateway.connect(alice)["depositETH(uint256)"](layer1GasLimit, { value: amount })
-            : await l1Gateway
-                .connect(alice)
-                ["depositETH(address,uint256)"](recipient.address, layer1GasLimit, { value: amount });
-          await depositTx.wait();
-          const afterBalanceLayer1 = await ethers.provider.getBalance(l1Messenger.address);
-          // should emit DepositETH
-          await expect(depositTx)
-            .to.emit(l1Gateway, "DepositETH")
-            .withArgs(alice.address, recipient.address, amount, "0x");
-          // should emit SentMessage
-          const deadline = (await ethers.provider.getBlock("latest")).timestamp + DROP_DELAY_DURATION;
-          const messageData = l2Gateway.interface.encodeFunctionData("finalizeDepositETH", [
-            alice.address,
-            recipient.address,
-            amount,
-            "0x",
-          ]);
-          await expect(depositTx)
-            .to.emit(l1Messenger, "SentMessage")
-            .withArgs(l2Gateway.address, l1Gateway.address, amount, 0, deadline, messageData, nonce, layer1GasLimit);
-          // should unwrap transfer to messenger
-          expect(afterBalanceLayer1.sub(beforeBalanceLayer1)).to.eq(amount);
-
-          // 3. do relay in layer 2
-          const beforeBalanceLayer2 = await ethers.provider.getBalance(recipient.address);
-          const relayTx = await l2Messenger.relayMessage(
-            l1Gateway.address,
-            l2Gateway.address,
-            amount,
-            0,
-            deadline,
-            nonce,
-            messageData
-          );
-          await relayTx.wait();
-          const afterBalanceLayer2 = await ethers.provider.getBalance(recipient.address);
-          // should emit RelayedMessage
-          await expect(relayTx).to.emit(l2Messenger, "RelayedMessage");
-          // should emit FinalizeDepositETH
-          await expect(relayTx)
-            .to.emit(l2Gateway, "FinalizeDepositETH")
-            .withArgs(alice.address, recipient.address, amount, "0x");
-          // should transfer and wrap weth in layer 2
-          expect(afterBalanceLayer2.sub(beforeBalanceLayer2)).to.eq(amount);
-          expect(await ethers.provider.getBalance(l2Messenger.address)).to.eq(constants.Zero);
-        });
-      });
-    };
-
-    const run2to1 = async (sendToSelf: boolean) => {
-      context(`layer 2 to layer 1: sendToSelf[${sendToSelf}]`, async () => {
-        const amount = ethers.utils.parseEther("100");
-        let recipient: SignerWithAddress;
-
-        beforeEach(async () => {
-          recipient = sendToSelf ? alice : bob;
-          await l1Gateway["depositETH(uint256)"](layer1GasLimit, { value: amount });
-        });
-
-        it("should transfer to layer 1 without data", async () => {
-          // 2. do withdraw in layer 2
-          const nonce = await l2Messenger.messageNonce();
-          const beforeBalanceLayer2 = await ethers.provider.getBalance(l2Messenger.address);
-          const withdrawTx = sendToSelf
-            ? await l2Gateway.connect(alice)["withdrawETH(uint256)"](layer2GasLimit, { value: amount })
-            : await l2Gateway
-                .connect(alice)
-                ["withdrawETH(address,uint256)"](recipient.address, layer2GasLimit, { value: amount });
-          await withdrawTx.wait();
-          const afterBalanceLayer2 = await ethers.provider.getBalance(l2Messenger.address);
-          // should emit WithdrawETH
-          await expect(withdrawTx)
-            .to.emit(l2Gateway, "WithdrawETH")
-            .withArgs(alice.address, recipient.address, amount, "0x");
-          // should emit SentMessage
-          const deadline = (await ethers.provider.getBlock("latest")).timestamp + DROP_DELAY_DURATION;
-          const messageData = l1Gateway.interface.encodeFunctionData("finalizeWithdrawETH", [
-            alice.address,
-            recipient.address,
-            amount,
-            "0x",
-          ]);
-          await expect(withdrawTx)
-            .to.emit(l2Messenger, "SentMessage")
-            .withArgs(l1Gateway.address, l2Gateway.address, amount, 0, deadline, messageData, nonce, layer2GasLimit);
-          // should unwrap transfer to messenger
-          expect(afterBalanceLayer2.sub(beforeBalanceLayer2)).to.eq(amount);
-
-          // 3. do relay in layer 1
-          const beforeBalanceLayer1 = await ethers.provider.getBalance(recipient.address);
-          const relayTx = await l1Messenger.relayMessageWithProof(
-            l2Gateway.address,
-            l1Gateway.address,
-            amount,
-            0,
-            deadline,
-            nonce,
-            messageData,
-            { batchIndex: 0, blockHeight: 0, merkleProof: "0x" }
-          );
-          await relayTx.wait();
-          const afterBalanceLayer1 = await ethers.provider.getBalance(recipient.address);
-          // should emit RelayedMessage
-          await expect(relayTx).to.emit(l1Messenger, "RelayedMessage");
-          // should emit FinalizeWithdrawETH
-          await expect(relayTx)
-            .to.emit(l1Gateway, "FinalizeWithdrawETH")
-            .withArgs(alice.address, recipient.address, amount, "0x");
-          // should transfer and wrap weth in layer 1
-          expect(afterBalanceLayer1.sub(beforeBalanceLayer1)).to.eq(amount);
-        });
-      });
-    };
-
-    for (const sendToSelf of [true, false]) {
-      run1to2(sendToSelf);
-      run2to1(sendToSelf);
-    }
-  });
-});

contracts/integration-test/L1BlockContainer.spec.ts

@@ -0,0 +1,230 @@
+/* eslint-disable node/no-unpublished-import */
+/* eslint-disable node/no-missing-import */
+import { expect } from "chai";
+import { BigNumber, BigNumberish, constants } from "ethers";
+import { concat, RLP } from "ethers/lib/utils";
+import { ethers } from "hardhat";
+import { L1BlockContainer } from "../typechain";
+
+interface IImportTestConfig {
+  hash: string;
+  parentHash: string;
+  uncleHash: string;
+  coinbase: string;
+  stateRoot: string;
+  transactionsRoot: string;
+  receiptsRoot: string;
+  logsBloom: string;
+  difficulty: BigNumberish;
+  blockHeight: number;
+  gasLimit: BigNumberish;
+  gasUsed: BigNumberish;
+  blockTimestamp: number;
+  extraData: string;
+  mixHash: string;
+  blockNonce: string;
+  baseFee: BigNumberish;
+}
+
+const testcases: Array<IImportTestConfig> = [
+  {
+    hash: "0x02250e97ef862444dd1d70acbe925c289bb2acf20a808cb8f4d1409d3adcfa1b",
+    parentHash: "0x95e612b2a734f5a8c6aad3f6662b18f983ce8b653854d7c307bf999d9be323af",
+    uncleHash: "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
+    coinbase: "0x690b9a9e9aa1c9db991c7721a92d351db4fac990",
+    stateRoot: "0x8d77db2a63cee63ae6d793f839a7513dfc50194f325b96a5326d724f5dc16320",
+    transactionsRoot: "0xe4ce5f0e2fc5fd8a7ad55c2a31c522ded4054b89065c627d26230b45cd585fed",
+    receiptsRoot: "0x10b2f34da3e6a1db9498ab36bb17b063763b8eb33492ccc621491b33bcb62bdd",
+    logsBloom:
+      "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",
+    difficulty: "0x0",
+    blockHeight: 0xf766a8,
+    gasLimit: "0x1c9c380",
+    gasUsed: "0xe6f194",
+    blockTimestamp: 0x639f69e3,
+    extraData: "0x406275696c64657230783639",
+    mixHash: "0xc1e37ce2b7ece4556ec87ea6d420a1a3610d49c58dfccec6998222fbf9cd64a2",
+    blockNonce: "0x0000000000000000",
+    baseFee: "0x2b96fa5cc",
+  },
+  {
+    hash: "0x2da4bf7cef55d6207af2095db5543df16acbd95dc66eef02d9764277c5b0895d",
+    parentHash: "0xde18012932b21820fbb48ef85b46774873383e75b062bc0c6a4761fbe87bad13",
+    uncleHash: "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
+    coinbase: "0x690b9a9e9aa1c9db991c7721a92d351db4fac990",
+    stateRoot: "0x1f101f54c3df5630c9d45224c95d71a57479992e174cdbda0c4ada30e657a465",
+    transactionsRoot: "0xc2b29438a5f55998879356cbc8006a90d2ba88a9841b3894c8da5840dd797f19",
+    receiptsRoot: "0xbd3608b6af5464b446db44fd289a980f417447b31ff15dd6d48c72fc8f4fef8d",
+    logsBloom:
+      "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",
+    difficulty: "0x0",
+    blockHeight: 0xf766d8,
+    gasLimit: "0x1c9c380",
+    gasUsed: "0xf8adad",
+    blockTimestamp: 0x639f6c23,
+    extraData: "0x6275696c64657230783639",
+    mixHash: "0x6066061b78b385483d960faa29ee40e79ea67769f5e697ecb70a0fce677804af",
+    blockNonce: "0x0000000000000000",
+    baseFee: "0x2aca8b608",
+  },
+  {
+    hash: "0x4ddeee3e8d62e961080711e48d8083f164789e78cc90e4362c133063b566d64a",
+    parentHash: "0x9d190c6d49352d628e321853967dd499d78c521daad73652ed1978db5652f58a",
+    uncleHash: "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
+    coinbase: "0xcd458d7f11023556cc9058f729831a038cb8df9c",
+    stateRoot: "0x3620665f9d094aac16e0762b733e814f4e09177a232f85d406271b60e4f2b58f",
+    transactionsRoot: "0x200f5acb65631c48c32c94ae95afe095134132939a01422da5c7c6d0e7f62cb3",
+    receiptsRoot: "0xc140420782bc76ff326d18b13427c991e9434a554b9ae82bbf09cca7b6ae4036",
+    logsBloom:
+      "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",
+    difficulty: "0x2ae28b0d3154b6",
+    blockHeight: 0xecb6fc,
+    gasLimit: "0x1c9c30d",
+    gasUsed: "0xb93955",
+    blockTimestamp: 0x631d8207,
+    extraData: "0x706f6f6c696e2e636f6d2050cabdd319bf3175",
+    mixHash: "0x18d61005875e902e1bbba1045fd6701df170230c0ffb37f2e77fbc2051b987cf",
+    blockNonce: "0xe8775f73466671e3",
+    baseFee: "0x18c9de157",
+  },
+];
+
+function encodeHeader(test: IImportTestConfig): string {
+  return RLP.encode([
+    test.parentHash,
+    test.uncleHash,
+    test.coinbase,
+    test.stateRoot,
+    test.transactionsRoot,
+    test.receiptsRoot,
+    test.logsBloom,
+    BigNumber.from(test.difficulty).isZero() ? "0x" : BigNumber.from(test.difficulty).toHexString(),
+    BigNumber.from(test.blockHeight).toHexString(),
+    BigNumber.from(test.gasLimit).toHexString(),
+    BigNumber.from(test.gasUsed).toHexString(),
+    BigNumber.from(test.blockTimestamp).toHexString(),
+    test.extraData,
+    test.mixHash,
+    test.blockNonce,
+    BigNumber.from(test.baseFee).toHexString(),
+  ]);
+}
+
+describe("L1BlockContainer", async () => {
+  let container: L1BlockContainer;
+
+  for (const test of testcases) {
+    context(`import block[${test.hash}] height[${test.blockHeight}]`, async () => {
+      beforeEach(async () => {
+        const [deployer] = await ethers.getSigners();
+        const L1BlockContainer = await ethers.getContractFactory("L1BlockContainer", deployer);
+        container = await L1BlockContainer.deploy(deployer.address);
+      });
+
+      it("should revert, when sender not allowed", async () => {
+        const [deployer] = await ethers.getSigners();
+        await container.initialize(
+          test.parentHash,
+          test.blockHeight - 1,
+          test.blockTimestamp - 1,
+          test.baseFee,
+          test.stateRoot
+        );
+        const Whitelist = await ethers.getContractFactory("Whitelist", deployer);
+        const whitelist = await Whitelist.deploy(deployer.address);
+        await container.updateWhitelist(whitelist.address);
+
+        await expect(container.importBlockHeader(constants.HashZero, [], false)).to.revertedWith(
+          "Not whitelisted sender"
+        );
+      });
+
+      it("should revert, when block hash mismatch", async () => {
+        await container.initialize(
+          test.parentHash,
+          test.blockHeight - 1,
+          test.blockTimestamp - 1,
+          test.baseFee,
+          test.stateRoot
+        );
+        const headerRLP = encodeHeader(test);
+        await expect(container.importBlockHeader(test.parentHash, headerRLP, false)).to.revertedWith(
+          "Block hash mismatch"
+        );
+      });
+
+      it("should revert, when has extra bytes", async () => {
+        await container.initialize(
+          test.parentHash,
+          test.blockHeight - 1,
+          test.blockTimestamp - 1,
+          test.baseFee,
+          test.stateRoot
+        );
+        const headerRLP = encodeHeader(test);
+        await expect(container.importBlockHeader(test.hash, concat([headerRLP, "0x00"]), false)).to.revertedWith(
+          "Header RLP length mismatch"
+        );
+      });
+
+      it("should revert, when parent not imported", async () => {
+        await container.initialize(
+          constants.HashZero,
+          test.blockHeight - 1,
+          test.blockTimestamp - 1,
+          test.baseFee,
+          test.stateRoot
+        );
+        const headerRLP = encodeHeader(test);
+        await expect(container.importBlockHeader(test.hash, headerRLP, false)).to.revertedWith("Parent not imported");
+      });
+
+      it("should revert, when block height mismatch", async () => {
+        await container.initialize(
+          test.parentHash,
+          test.blockHeight,
+          test.blockTimestamp - 1,
+          test.baseFee,
+          test.stateRoot
+        );
+        const headerRLP = encodeHeader(test);
+        await expect(container.importBlockHeader(test.hash, headerRLP, false)).to.revertedWith("Block height mismatch");
+      });
+
+      it("should revert, when parent block has larger timestamp", async () => {
+        await container.initialize(
+          test.parentHash,
+          test.blockHeight - 1,
+          test.blockTimestamp + 1,
+          test.baseFee,
+          test.stateRoot
+        );
+        const headerRLP = encodeHeader(test);
+        await expect(container.importBlockHeader(test.hash, headerRLP, false)).to.revertedWith(
+          "Parent block has larger timestamp"
+        );
+      });
+
+      it(`should succeed`, async () => {
+        await container.initialize(
+          test.parentHash,
+          test.blockHeight - 1,
+          test.blockTimestamp - 1,
+          test.baseFee,
+          test.stateRoot
+        );
+        expect(await container.latestBlockHash()).to.eq(test.parentHash);
+        const headerRLP = encodeHeader(test);
+        await expect(container.importBlockHeader(test.hash, headerRLP, false))
+          .to.emit(container, "ImportBlock")
+          .withArgs(test.hash, test.blockHeight, test.blockTimestamp, test.baseFee, test.stateRoot);
+        expect(await container.getStateRoot(test.hash)).to.eq(test.stateRoot);
+        expect(await container.getBlockTimestamp(test.hash)).to.eq(test.blockTimestamp);
+        expect(await container.latestBlockHash()).to.eq(test.hash);
+        expect(await container.latestBaseFee()).to.eq(test.baseFee);
+        expect(await container.latestBlockNumber()).to.eq(test.blockHeight);
+        expect(await container.latestBlockTimestamp()).to.eq(test.blockTimestamp);
+      });
+    });
+  }
+});

contracts/integration-test/PatriciaMerkleTrieVerifier.spec.ts

@@ -0,0 +1,120 @@
+/* eslint-disable node/no-unpublished-import */
+/* eslint-disable node/no-missing-import */
+import { expect } from "chai";
+import { concat } from "ethers/lib/utils";
+import { ethers } from "hardhat";
+import { MockPatriciaMerkleTrieVerifier } from "../typechain";
+
+interface ITestConfig {
+  block: number;
+  account: string;
+  storage: string;
+  expectedRoot: string;
+  expectedValue: string;
+  accountProof: string[];
+  storageProof: string[];
+}
+
+const testcases: Array<ITestConfig> = [
+  {
+    block: 16212738,
+    account: "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
+    storage: "0xb17c5049c06186507ed9d55e735dc0342e08579866e7ed881de010624b3896dd",
+    expectedRoot: "0x5dd9637058e605949321a683ab1e6c56ae6041a05cdf97355696f93309799391",
+    expectedValue: "0x00000000000000000000000000000000000000000000000052ab3594ab17a60b",
+    accountProof: [
+      "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",
+      "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",
+      "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",
+      "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",
+      "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",
+      "0xf90211a02b207484d2fd6781a1e4ae62c2c4171477bd5b929df2b14904cd4f36c61363cba04cbd3a34c4d4f60bc5590d8b5859da8ac83ea7a8a0197dbbc528434651b0f748a0beafa9a7e0b2073100526355a341de7a1a839c7f7322a594bdc9ed4d73d72283a0249717659c4e7adda14416a804ba5c9b305f9da2531a3ff6e6d74fca6380f4c2a09b5d4bcf5c805d1c38f283bca39ce28077cbe0daed23312d666cde49134a4d2da03930a91cdfb11a85632972832202e0ab4027f78049f828a099327513be660ed0a0ec6a17d51d787c382575d6798093a015e8383bb276b6fb291d529498789ada09a0f54c88077fa118092db43a93d89c86ec879da12d33e6e5dd89b10b7fb115bc54a0e1a3af76bd6a0b1f4419a62bc73439c641c612a912dc8d190e8e81c8c15dd561a097934d75e361d115ea93e2fdc0c91a54d59414f0daa2ac1991b6651ae6571f9ca009abf1666d7d9202849314692d5ce1e51e5629727701044b37532ab3f9be50c0a094561fbec829ff4807911e0169bcb59159bf8d478fe7116cd652c179c28342f1a058ea9466450f42b25cc3298911ebeb081b6bc73f3c414f0d36244d331cc18c5da0697343bd56fce1c2d34ebb3baa06b3f5aba4851e3b60436e545a2616ef47cb73a06ef38fec665b8eb25934622af1112b9a9d52408c94d2c0124d6e24b7ff4296c0a0451066ddc0cd1a63e22d096eab595e74c8e8509616650d76a0eedd35f0c228b180",
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+    ],
+    storageProof: [
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+      "0xf901f1a0c5a1504268a750c1c90b7841d99e6934f977193c72d44ba456fc9a263fb3ea45a0924bbfcbd6d2e7a3f9bb5ec1898a1ec0b98880f747991e96696bd0b565e1f83aa07ccd4b2cea9ff079bea41f9d704c21e7f9d3fbaa83895f34970585873d5bd9e2a0b2e313a02508e8a0dfa115612c1400f8cf9d5cc23369b6aefd7c1fceca7dc943a0e19964c5618fe9f1f590eaddc17787071442649385109b9324beb8bf51a0d2d4a0b022d54d33a1c62278d7784996fddb4c7dcab2fc3c2287c6840edc3762e3d034a0a8381f53de80c0d06ca7288457d82fc1cef37af3e08abbed93a61d48d7c9ca1ba03f916faed29b999d16e22fcc2ad463681a42339b24fdca5a1323b5e55d5650f3a0eb6adbd0b998ec882b91b44ab6ccf20050962c45b68d4e42d2f0e3e1c9384952a009190c615b4dab60e7c1940f2b3b87e3636a655b29dd8b65b99f497ab4fbc395a0156deb01c2c14daf7c043555c077b4af3c5aac031d75cf9e4f704280983c67c8a09dd3b43b4514cfa57218538527defb69638f108383a9d95ad07a296d30bd5bbf80a01316d876cd6803dd122538f308cf116b79278393d979769a121f8354c925cda0a0324232c83f8194263838f7105b67fb93b805c027d6419a98f3c40937b9502132a0cf19102ca5c74f4e088ca39ded150e7a9d5d1bc5d9263012c7e843dfdec8386580",
+      "0xf8718080808080a0795b2bc0fec80623a0785ed76761d1e9abbf37b806b4b1664a22c1dac557d79080a09831b7f896628cd55e9cec00f168d92c748a1dae2fc55774f0fdc80ae64294a08080808080a020edc6edb75de3cfde19500957b220fffbfc581e93b5b6e307fac078a8b14783808080",
+      "0xe99e20e18d2fc45a3ea90621b218552f932e0a2a920a290d1c6bda98db9ab133898852ab3594ab17a60b",
+    ],
+  },
+  {
+    block: 16212787,
+    account: "0x9467a2d9c07cebce3708ca32eeb2b9219aeb31b8",
+    storage: "0x000000000000000000000000000000000000000000000000000000000000000a",
+    expectedRoot: "0x16b9e5246ca2dad361d440d5524cb431ca30d0575fc21f4e4242f7611fa2a212",
+    expectedValue: "0x639f404f0000000000031d02a5d2b33515ec000000000000072629ee1252f3a0",
+    accountProof: [
+      "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",
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+      "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",
+      "0xf8669d33239d97e43f5062453663ffd198f40e6120b1057a77480a17b59f8d8cb846f8440180a07a5f002403d62f9d1ab5b4684459d1a2e5170075efb41f51f94fdb30b5e6d46aa073f5b0f762a0557ec4b135108e719884532887167fa14c0d6b7807943d70d96d",
+    ],
+    storageProof: [
+      "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",
+      "0xf8518080a08bafc792d182fe0cac5c7dfb236bbc88dfd0ecf5505b681d1c256d75aa6858fa808080a03315f891bf9433a5415e982ba0f5b3d4497a2a44cb9a958d0830fe301fecae4d80808080808080808080",
+      "0xf843a0205a7bb8d6351c1cf70c95a316cc6a92839c986682d98bc35f958f4883f9d2a8a1a0639f404f0000000000031d02a5d2b33515ec000000000000072629ee1252f3a0",
+    ],
+  },
+  {
+    block: 16212808,
+    account: "0x55e617b7456abc2545cbb547e0102279a6c430c3",
+    storage: "0xa6bcd7cfb5e938d75f4330a273812b53f809408efd4332627beb0285fa4a8732",
+    expectedRoot: "0xcb31a10f1562c0c36bd4ceadaa95dd6234fdc02e8cb9357339e507e6b24584bf",
+    expectedValue: "0x0000000000000000000000000000000000000000000000000000000000000001",
+    accountProof: [
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+      "0xf8d1a0db401bdef3bd74dec5338135194e69ab43e15aa891e5de20ef3e57cde5366ab5808080a0621c1fbbb026eddb70a4c645e152dcf9b3f1b40b9a1bdc4398a22bee4a46aca380a05528de70186525019cdf0880afb77b33ae4871fbfaad3e8bccd7dcb6402d746580808080a020fa8ae1091998f03c979f94e94ff6c011427da2834f1dffaec815fd3c5fa6e080a0611ff1f45d926197480694e690227d603e84e7c44b520473b9786cd4fafaf613a012dfcd444d4948c86a3dbad8f4f1dad09c313a63e6f8bf0ecb7bd799908aa3248080",
+      "0xf8518080808080a0cf86ad50e7ed35be6080c4cd74d835e58867b2e2ec03198baf29962de46a8cbe808080808080a03a5ec92acf98ebef8eeb621707a501ed0fd95186282ab1dcf8e7286a9142b90480808080",
+      "0xf86e9d2019df8705960e4a0a7ac52ab662c57cddd5f60a7f75f0c117ae2e073fb84ef84c0188067eab853ae20000a0724a8bd0aaa1c991a445a1e974deecd8cfe4ba2040de2578e98238b9f963ba8aa01717795a0fbfac056a8306e5cb0ac160c3ad752357e0360a408e59acd35ebb1c",
+    ],
+    storageProof: [
+      "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",
+      "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",
+      "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",
+      "0xe19f36c2516eb411c7c89f75dcf98d8ff95555585215a5f6242b4f24adbcb7424901",
+    ],
+  },
+];
+
+describe("PatriciaMerkleTrieVerifier", async () => {
+  let verifier: MockPatriciaMerkleTrieVerifier;
+
+  beforeEach(async () => {
+    const [deployer] = await ethers.getSigners();
+
+    const MockPatriciaMerkleTrieVerifier = await ethers.getContractFactory("MockPatriciaMerkleTrieVerifier", deployer);
+    verifier = await MockPatriciaMerkleTrieVerifier.deploy();
+    await verifier.deployed();
+  });
+
+  for (const test of testcases) {
+    it(`should succeed for block[${test.block}] account[${test.account}] storage[${test.storage}]`, async () => {
+      const proof = concat([
+        `0x0${test.accountProof.length.toString(16)}`,
+        ...test.accountProof,
+        `0x0${test.storageProof.length.toString(16)}`,
+        ...test.storageProof,
+      ]);
+      const [root, value, gasUsed] = await verifier.verifyPatriciaProof(test.account, test.storage, proof);
+      expect(test.expectedRoot).to.eq(root);
+      expect(test.expectedValue).to.eq(value);
+      console.log("gas usage:", gasUsed.toString());
+    });
+  }
+
+  // @todo add tests with invalid inputs
+});

contracts/integration-test/ScrollChain.spec.ts

@@ -0,0 +1,108 @@
+/* eslint-disable node/no-unpublished-import */
+/* eslint-disable node/no-missing-import */
+import { constants } from "ethers";
+import { concat } from "ethers/lib/utils";
+import { ethers } from "hardhat";
+import { ScrollChain, L1MessageQueue } from "../typechain";
+
+describe("ScrollChain", async () => {
+  let queue: L1MessageQueue;
+  let chain: ScrollChain;
+
+  beforeEach(async () => {
+    const [deployer] = await ethers.getSigners();
+
+    const L1MessageQueue = await ethers.getContractFactory("L1MessageQueue", deployer);
+    queue = await L1MessageQueue.deploy();
+    await queue.deployed();
+
+    const RollupVerifier = await ethers.getContractFactory("RollupVerifier", deployer);
+    const verifier = await RollupVerifier.deploy();
+    await verifier.deployed();
+
+    const ScrollChain = await ethers.getContractFactory("ScrollChain", {
+      signer: deployer,
+      libraries: { RollupVerifier: verifier.address },
+    });
+    chain = await ScrollChain.deploy(0, 25, "0xb5baa665b2664c3bfed7eb46e00ebc110ecf2ebd257854a9bf2b9dbc9b2c08f6");
+    await chain.deployed();
+
+    await chain.initialize(queue.address);
+    await chain.updateSequencer(deployer.address, true);
+    await queue.initialize(constants.AddressZero, constants.AddressZero);
+  });
+
+  it("should succeed", async () => {
+    await chain.importGenesisBatch({
+      blocks: [
+        {
+          blockHash: "0x92826bd3aad2ef70d8061dc4e25150b305d1233d9cd7579433a77d6eb01dae1c",
+          parentHash: constants.HashZero,
+          blockNumber: 0,
+          timestamp: 1639724192,
+          baseFee: 1000000000,
+          gasLimit: 940000000,
+          numTransactions: 0,
+          numL1Messages: 0,
+        },
+      ],
+      prevStateRoot: constants.HashZero,
+      newStateRoot: "0x1b186a7a90ec3b41a2417062fe44dce8ce82ae76bfbb09eae786a4f1be1895f5",
+      withdrawTrieRoot: constants.HashZero,
+      batchIndex: 0,
+      parentBatchHash: constants.HashZero,
+      l2Transactions: [],
+    });
+    const parentBatchHash = await chain.lastFinalizedBatchHash();
+    console.log("genesis batch hash:", parentBatchHash);
+
+    for (let numTx = 1; numTx <= 25; ++numTx) {
+      for (let txLength = 100; txLength <= 1000; txLength += 100) {
+        const txs: Array<Uint8Array> = [];
+        for (let i = 0; i < numTx; i++) {
+          const tx = new Uint8Array(4 + txLength);
+          let offset = 3;
+          for (let x = txLength; x > 0; x = Math.floor(x / 256)) {
+            tx[offset] = x % 256;
+            offset -= 1;
+          }
+          tx.fill(1, 4);
+          txs.push(tx);
+        }
+        const batch = {
+          blocks: [
+            {
+              blockHash: "0xb5baa665b2664c3bfed7eb46e00ebc110ecf2ebd257854a9bf2b9dbc9b2c08f6",
+              parentHash: "0x92826bd3aad2ef70d8061dc4e25150b305d1233d9cd7579433a77d6eb01dae1c",
+              blockNumber: 1,
+              timestamp: numTx * 100000 + txLength,
+              baseFee: 0,
+              gasLimit: 0,
+              numTransactions: 0,
+              numL1Messages: 0,
+            },
+          ],
+          prevStateRoot: "0x1b186a7a90ec3b41a2417062fe44dce8ce82ae76bfbb09eae786a4f1be1895f5",
+          newStateRoot: "0xb5baa665b2664c3bfed7eb46e00ebc110ecf2ebd257854a9bf2b9dbc9b2c08f6",
+          withdrawTrieRoot: "0xb5baa665b2664c3bfed7eb46e00ebc110ecf2ebd257854a9bf2b9dbc9b2c08f6",
+          batchIndex: 1,
+          parentBatchHash: parentBatchHash,
+          l2Transactions: concat(txs),
+        };
+        const estimateGas = await chain.estimateGas.commitBatch(batch);
+        const tx = await chain.commitBatch(batch, { gasLimit: estimateGas.mul(12).div(10) });
+        const receipt = await tx.wait();
+        console.log(
+          "Commit batch with l2TransactionsBytes:",
+          numTx * (txLength + 4),
+          "gasLimit:",
+          tx.gasLimit.toString(),
+          "estimateGas:",
+          estimateGas.toString(),
+          "gasUsed:",
+          receipt.gasUsed.toString()
+        );
+      }
+    }
+  });
+});

contracts/scripts/README.md

@@ -11,13 +11,15 @@ export owner=0x0000000000000000000000000000000000000000 # change to actual owner
 
 # deploy contracts in layer 1
 npx hardhat --network $layer1 run scripts/deploy_proxy_admin.ts
-npx hardhat --network $layer1 run scripts/deploy_zkrollup.ts
+npx hardhat --network $layer1 run scripts/deploy_scroll_chain.ts
 env CONTRACT_NAME=L1ScrollMessenger npx hardhat run --network $layer1 scripts/deploy_proxy_contract.ts
 env CONTRACT_NAME=L1GatewayRouter npx hardhat run --network $layer1 scripts/deploy_proxy_contract.ts
 env CONTRACT_NAME=L1StandardERC20Gateway npx hardhat run --network $layer1 scripts/deploy_proxy_contract.ts
 env CONTRACT_NAME=L1CustomERC20Gateway npx hardhat run --network $layer1 scripts/deploy_proxy_contract.ts
 env CONTRACT_NAME=L1ERC721Gateway npx hardhat run --network $layer1 scripts/deploy_proxy_contract.ts
 env CONTRACT_NAME=L1ERC1155Gateway npx hardhat run --network $layer1 scripts/deploy_proxy_contract.ts
+env CONTRACT_NAME=L1ETHGateway npx hardhat run --network $layer1 scripts/deploy_proxy_contract.ts
+env CONTRACT_NAME=L1WETHGateway npx hardhat run --network $layer1 scripts/deploy_proxy_contract.ts
 
 # deploy contracts in layer 2, note: l2_messenger is predeployed
 npx hardhat --network $layer2 run scripts/deploy_proxy_admin.ts
@@ -28,11 +30,13 @@ env CONTRACT_NAME=L2StandardERC20Gateway npx hardhat run --network $layer2 scrip
 env CONTRACT_NAME=L2CustomERC20Gateway npx hardhat run --network $layer2 scripts/deploy_proxy_contract.ts
 env CONTRACT_NAME=L2ERC721Gateway npx hardhat run --network $layer2 scripts/deploy_proxy_contract.ts
 env CONTRACT_NAME=L2ERC1155Gateway npx hardhat run --network $layer2 scripts/deploy_proxy_contract.ts
+env CONTRACT_NAME=L2ETHGateway npx hardhat run --network $layer2 scripts/deploy_proxy_contract.ts
+env CONTRACT_NAME=L2WETHGateway npx hardhat run --network $layer2 scripts/deploy_proxy_contract.ts
 
 # initalize contracts in layer 1, should set proper bash env variables first
 npx hardhat --network $layer1 run scripts/initialize_l1_erc20_gateway.ts
 npx hardhat --network $layer1 run scripts/initialize_l1_gateway_router.ts
-npx hardhat --network $layer1 run scripts/initialize_zkrollup.ts
+npx hardhat --network $layer1 run scripts/initialize_scroll_chain.ts
 npx hardhat --network $layer1 run scripts/initialize_l1_messenger.ts
 npx hardhat --network $layer1 run scripts/initialize_l1_custom_erc20_gateway.ts
 npx hardhat --network $layer1 run scripts/initialize_l1_erc1155_gateway.ts

contracts/scripts/deploy_l1_erc20_gateway.ts

@@ -1,48 +0,0 @@
-/* eslint-disable node/no-missing-import */
-import * as hre from "hardhat";
-import { ethers } from "hardhat";
-import { selectAddressFile } from "./utils";
-
-async function main() {
-  const addressFile = selectAddressFile(hre.network.name);
-
-  const [deployer] = await ethers.getSigners();
-
-  const ProxyAdmin = await ethers.getContractAt("ProxyAdmin", addressFile.get("ProxyAdmin"), deployer);
-
-  if (!addressFile.get("L1StandardERC20Gateway.implementation")) {
-    console.log(">> Deploy L1StandardERC20Gateway implementation");
-    const L1StandardERC20Gateway = await ethers.getContractFactory("L1StandardERC20Gateway", deployer);
-    const impl = await L1StandardERC20Gateway.deploy();
-    console.log(`>> waiting for transaction: ${impl.deployTransaction.hash}`);
-    await impl.deployed();
-    console.log(`✅ L1StandardERC20Gateway implementation deployed at ${impl.address}`);
-    addressFile.set("L1StandardERC20Gateway.implementation", impl.address);
-  }
-
-  const impl = addressFile.get("L1StandardERC20Gateway.implementation") as string;
-
-  if (!addressFile.get("L1StandardERC20Gateway.proxy")) {
-    console.log(">> Deploy L1StandardERC20Gateway proxy");
-    const TransparentUpgradeableProxy = await ethers.getContractFactory("TransparentUpgradeableProxy", deployer);
-    const proxy = await TransparentUpgradeableProxy.deploy(impl, ProxyAdmin.address, "0x");
-    console.log(`>> waiting for transaction: ${proxy.deployTransaction.hash}`);
-    await proxy.deployed();
-    console.log(`✅ L1StandardERC20Gateway proxy deployed at ${proxy.address}`);
-    addressFile.set("L1StandardERC20Gateway.proxy", proxy.address);
-  }
-
-  // Export contract address to testnet.
-  console.log(
-    `testnet-export: ${addressFile.get("L1StandardERC20Gateway.implementation")};${addressFile.get(
-      "L1StandardERC20Gateway.proxy"
-    )}`
-  );
-}
-
-// We recommend this pattern to be able to use async/await everywhere
-// and properly handle errors.
-main().catch((error) => {
-  console.error(error);
-  process.exitCode = 1;
-});

contracts/scripts/deploy_l1_gateway_router.ts

@@ -1,46 +0,0 @@
-/* eslint-disable node/no-missing-import */
-import * as hre from "hardhat";
-import { ethers } from "hardhat";
-import { selectAddressFile } from "./utils";
-
-async function main() {
-  const addressFile = selectAddressFile(hre.network.name);
-
-  const [deployer] = await ethers.getSigners();
-
-  const ProxyAdmin = await ethers.getContractAt("ProxyAdmin", addressFile.get("ProxyAdmin"), deployer);
-
-  if (!addressFile.get("L1GatewayRouter.implementation")) {
-    console.log(">> Deploy L1GatewayRouter implementation");
-    const L1GatewayRouter = await ethers.getContractFactory("L1GatewayRouter", deployer);
-    const impl = await L1GatewayRouter.deploy();
-    console.log(`>> waiting for transaction: ${impl.deployTransaction.hash}`);
-    await impl.deployed();
-    console.log(`✅ L1GatewayRouter implementation deployed at ${impl.address}`);
-    addressFile.set("L1GatewayRouter.implementation", impl.address);
-  }
-
-  const impl = addressFile.get("L1GatewayRouter.implementation") as string;
-
-  if (!addressFile.get("L1GatewayRouter.proxy")) {
-    console.log(">> Deploy L1GatewayRouter proxy");
-    const TransparentUpgradeableProxy = await ethers.getContractFactory("TransparentUpgradeableProxy", deployer);
-    const proxy = await TransparentUpgradeableProxy.deploy(impl, ProxyAdmin.address, "0x");
-    console.log(`>> waiting for transaction: ${proxy.deployTransaction.hash}`);
-    await proxy.deployed();
-    console.log(`✅ L1GatewayRouter proxy deployed at ${proxy.address}`);
-    addressFile.set("L1GatewayRouter.proxy", proxy.address);
-  }
-
-  // Export contract address to testnet.
-  console.log(
-    `testnet-export: ${addressFile.get("L1GatewayRouter.implementation")};${addressFile.get("L1GatewayRouter.proxy")}`
-  );
-}
-
-// We recommend this pattern to be able to use async/await everywhere
-// and properly handle errors.
-main().catch((error) => {
-  console.error(error);
-  process.exitCode = 1;
-});

contracts/scripts/deploy_l1_messenger.ts

@@ -1,48 +0,0 @@
-/* eslint-disable node/no-missing-import */
-import * as hre from "hardhat";
-import { ethers } from "hardhat";
-import { selectAddressFile } from "./utils";
-
-async function main() {
-  const addressFile = selectAddressFile(hre.network.name);
-
-  const [deployer] = await ethers.getSigners();
-
-  const ProxyAdmin = await ethers.getContractAt("ProxyAdmin", addressFile.get("ProxyAdmin"), deployer);
-
-  if (!addressFile.get("L1ScrollMessenger.implementation")) {
-    console.log(">> Deploy L1ScrollMessenger implementation");
-    const L1ScrollMessenger = await ethers.getContractFactory("L1ScrollMessenger", deployer);
-    const impl = await L1ScrollMessenger.deploy();
-    console.log(`>> waiting for transaction: ${impl.deployTransaction.hash}`);
-    await impl.deployed();
-    console.log(`✅ L1ScrollMessenger implementation deployed at ${impl.address}`);
-    addressFile.set("L1ScrollMessenger.implementation", impl.address);
-  }
-
-  const impl = addressFile.get("L1ScrollMessenger.implementation") as string;
-
-  if (!addressFile.get("L1ScrollMessenger.proxy")) {
-    console.log(">> Deploy L1ScrollMessenger proxy");
-    const TransparentUpgradeableProxy = await ethers.getContractFactory("TransparentUpgradeableProxy", deployer);
-    const proxy = await TransparentUpgradeableProxy.deploy(impl, ProxyAdmin.address, "0x");
-    console.log(`>> waiting for transaction: ${proxy.deployTransaction.hash}`);
-    await proxy.deployed();
-    console.log(`✅ L1ScrollMessenger proxy deployed at ${proxy.address}`);
-    addressFile.set("L1ScrollMessenger.proxy", proxy.address);
-  }
-
-  // Export contract address to testnet.
-  console.log(
-    `testnet-export: ${addressFile.get("L1ScrollMessenger.implementation")};${addressFile.get(
-      "L1ScrollMessenger.proxy"
-    )}`
-  );
-}
-
-// We recommend this pattern to be able to use async/await everywhere
-// and properly handle errors.
-main().catch((error) => {
-  console.error(error);
-  process.exitCode = 1;
-});

contracts/scripts/deploy_l2_erc20_gateway.ts

@@ -1,48 +0,0 @@
-/* eslint-disable node/no-missing-import */
-import * as hre from "hardhat";
-import { ethers } from "hardhat";
-import { selectAddressFile } from "./utils";
-
-async function main() {
-  const addressFile = selectAddressFile(hre.network.name);
-
-  const [deployer] = await ethers.getSigners();
-
-  const ProxyAdmin = await ethers.getContractAt("ProxyAdmin", addressFile.get("ProxyAdmin"), deployer);
-
-  if (!addressFile.get("L2StandardERC20Gateway.implementation")) {
-    console.log(">> Deploy L2StandardERC20Gateway implementation");
-    const L2StandardERC20Gateway = await ethers.getContractFactory("L2StandardERC20Gateway", deployer);
-    const impl = await L2StandardERC20Gateway.deploy();
-    console.log(`>> waiting for transaction: ${impl.deployTransaction.hash}`);
-    await impl.deployed();
-    console.log(`✅ L2StandardERC20Gateway implementation deployed at ${impl.address}`);
-    addressFile.set("L2StandardERC20Gateway.implementation", impl.address);
-  }
-
-  const impl = addressFile.get("L2StandardERC20Gateway.implementation") as string;
-
-  if (!addressFile.get("L2StandardERC20Gateway.proxy")) {
-    console.log(">> Deploy L2StandardERC20Gateway proxy");
-    const TransparentUpgradeableProxy = await ethers.getContractFactory("TransparentUpgradeableProxy", deployer);
-    const proxy = await TransparentUpgradeableProxy.deploy(impl, ProxyAdmin.address, "0x");
-    console.log(`>> waiting for transaction: ${proxy.deployTransaction.hash}`);
-    await proxy.deployed();
-    console.log(`✅ L2StandardERC20Gateway proxy deployed at ${proxy.address}`);
-    addressFile.set("L2StandardERC20Gateway.proxy", proxy.address);
-  }
-
-  // Export contract address to testnet.
-  console.log(
-    `testnet-export: ${addressFile.get("L2StandardERC20Gateway.implementation")};${addressFile.get(
-      "L2StandardERC20Gateway.proxy"
-    )}`
-  );
-}
-
-// We recommend this pattern to be able to use async/await everywhere
-// and properly handle errors.
-main().catch((error) => {
-  console.error(error);
-  process.exitCode = 1;
-});

contracts/scripts/deploy_l2_gateway_router.ts

@@ -1,46 +0,0 @@
-/* eslint-disable node/no-missing-import */
-import * as hre from "hardhat";
-import { ethers } from "hardhat";
-import { selectAddressFile } from "./utils";
-
-async function main() {
-  const addressFile = selectAddressFile(hre.network.name);
-
-  const [deployer] = await ethers.getSigners();
-
-  const ProxyAdmin = await ethers.getContractAt("ProxyAdmin", addressFile.get("ProxyAdmin"), deployer);
-
-  if (!addressFile.get("L2GatewayRouter.implementation")) {
-    console.log(">> Deploy L2GatewayRouter implementation");
-    const L2GatewayRouter = await ethers.getContractFactory("L2GatewayRouter", deployer);
-    const impl = await L2GatewayRouter.deploy();
-    console.log(`>> waiting for transaction: ${impl.deployTransaction.hash}`);
-    await impl.deployed();
-    console.log(`✅ L2GatewayRouter implementation deployed at ${impl.address}`);
-    addressFile.set("L2GatewayRouter.implementation", impl.address);
-  }
-
-  const impl = addressFile.get("L2GatewayRouter.implementation") as string;
-
-  if (!addressFile.get("L2GatewayRouter.proxy")) {
-    console.log(">> Deploy L2GatewayRouter proxy");
-    const TransparentUpgradeableProxy = await ethers.getContractFactory("TransparentUpgradeableProxy", deployer);
-    const proxy = await TransparentUpgradeableProxy.deploy(impl, ProxyAdmin.address, "0x");
-    console.log(`>> waiting for transaction: ${proxy.deployTransaction.hash}`);
-    await proxy.deployed();
-    console.log(`✅ L2GatewayRouter proxy deployed at ${proxy.address}`);
-    addressFile.set("L2GatewayRouter.proxy", proxy.address);
-  }
-
-  // Export contract address to testnet.
-  console.log(
-    `testnet-export: ${addressFile.get("L2GatewayRouter.implementation")};${addressFile.get("L2GatewayRouter.proxy")}`
-  );
-}
-
-// We recommend this pattern to be able to use async/await everywhere
-// and properly handle errors.
-main().catch((error) => {
-  console.error(error);
-  process.exitCode = 1;
-});

contracts/scripts/deploy_l2_messenger.ts

@@ -8,19 +8,38 @@ async function main() {
 
   const [deployer] = await ethers.getSigners();
 
-  const owner = process.env.CONTRACT_OWNER || deployer.address;
-  if (!addressFile.get("L2ScrollMessenger")) {
+  const ProxyAdmin = await ethers.getContractAt("ProxyAdmin", addressFile.get("ProxyAdmin"), deployer);
+
+  const container = process.env.L1_BLOCK_CONTAINER_ADDR!;
+  const queue = process.env.L2_MESSAGE_QUEUE_ADDR!;
+  if (!addressFile.get("L2ScrollMessenger.implementation")) {
     console.log(">> Deploy L2ScrollMessenger implementation");
     const L2ScrollMessenger = await ethers.getContractFactory("L2ScrollMessenger", deployer);
-    const impl = await L2ScrollMessenger.deploy(owner);
+    const impl = await L2ScrollMessenger.deploy(container, queue);
     console.log(`>> waiting for transaction: ${impl.deployTransaction.hash}`);
     await impl.deployed();
     console.log(`✅ L2ScrollMessenger implementation deployed at ${impl.address}`);
-    addressFile.set("L2ScrollMessenger", impl.address);
+    addressFile.set("L2ScrollMessenger.implementation", impl.address);
+  }
+
+  const impl = addressFile.get("L2ScrollMessenger.implementation") as string;
+
+  if (!addressFile.get("L2ScrollMessenger.proxy")) {
+    console.log(">> Deploy L2ScrollMessenger proxy");
+    const TransparentUpgradeableProxy = await ethers.getContractFactory("TransparentUpgradeableProxy", deployer);
+    const proxy = await TransparentUpgradeableProxy.deploy(impl, ProxyAdmin.address, "0x");
+    console.log(`>> waiting for transaction: ${proxy.deployTransaction.hash}`);
+    await proxy.deployed();
+    console.log(`✅ L2ScrollMessenger proxy deployed at ${proxy.address}`);
+    addressFile.set(`L2ScrollMessenger.proxy`, proxy.address);
   }
 
   // Export contract address to testnet.
-  console.log(`testnet-export: ${addressFile.get("L2ScrollMessenger")}`);
+  console.log(
+    `testnet-export: ${addressFile.get("L2ScrollMessenger.implementation")};${addressFile.get(
+      "L2ScrollMessenger.proxy"
+    )}`
+  );
 }
 
 // We recommend this pattern to be able to use async/await everywhere