feat(libzkp): change linkage from staticlib to dylib (#471)

Co-authored-by: xinran chen <lawliet@xinran-m1x.local>

.github/workflows/bridge.yml

@@ -66,3 +66,11 @@ jobs:
         if [ -n "$(git status --porcelain)" ]; then
           exit 1
         fi
+  # docker-build:
+  #   runs-on: ubuntu-latest
+  #   steps:
+  #   - name: Checkout code
+  #     uses: actions/checkout@v2
+  #   - name: Set up Docker Buildx
+  #     uses: docker/setup-buildx-action@v2
+  #   - run: make docker

.github/workflows/bridge_hisotry_api.yml

@@ -0,0 +1,73 @@
+name: BridgeHistoryApi
+
+on:
+  push:
+    branches:
+      - main
+      - staging
+      - develop
+      - alpha
+    paths:
+      - 'bridge-history-api/**'
+      - '.github/workflows/bridge_history_api.yml'
+  pull_request:
+    branches:
+      - main
+      - staging
+      - develop
+      - alpha
+    paths:
+      - 'bridge-history-api/**'
+      - '.github/workflows/bridge_history_api.yml'
+
+defaults:
+  run:
+    working-directory: 'bridge-history-api'
+
+jobs:
+  check:
+    # runs-on: ubuntu-latest
+    # steps:
+    # - name: Install Go
+    #   uses: actions/setup-go@v2
+    #   with:
+    #     go-version: 1.20.x
+    # - name: Checkout code
+    #   uses: actions/checkout@v2
+    # - name: Lint
+    #   run: |
+    #     rm -rf $HOME/.cache/golangci-lint 
+    #     make lint
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Install Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: 1.20.x
+    - name: Checkout code
+      uses: actions/checkout@v2
+    - name: Test
+      run: |
+        go get ./...
+        make test
+  goimports-lint:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Install Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: 1.20.x
+    - name: Checkout code
+      uses: actions/checkout@v2
+    - name: Install goimports
+      run: go install golang.org/x/tools/cmd/goimports
+    - run: goimports -local scroll-tech/bridge-history-api/ -w .
+    - run: go mod tidy
+    # If there are any diffs from goimports or go mod tidy, fail.
+    - name: Verify no changes from goimports and go mod tidy
+      run: |
+        if [ -n "$(git status --porcelain)" ]; then
+          exit 1
+        fi
+  

.github/workflows/coordinator.yml

@@ -62,3 +62,18 @@ jobs:
         if [ -n "$(git status --porcelain)" ]; then
           exit 1
         fi
+  # docker-build:
+  #   runs-on: ubuntu-latest
+  #   steps:
+  #   - name: Checkout code
+  #     uses: actions/checkout@v2
+  #   - name: Set up Docker Buildx
+  #     uses: docker/setup-buildx-action@v2
+  #   - name: Build and push
+  #     uses: docker/build-push-action@v2
+  #     with:
+  #       context: .
+  #       file: ./build/dockerfiles/coordinator.Dockerfile
+  #       push: false
+  #       # cache-from: type=gha,scope=${{ github.workflow }}
+  #       # cache-to: type=gha,scope=${{ github.workflow }}

.github/workflows/docker.yaml

@@ -0,0 +1,83 @@
+name: Docker
+
+on:
+  push:
+    tags:
+      - v**
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v2
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v2
+    - name: Login to Docker Hub
+      uses: docker/login-action@v2
+      with:
+        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_TOKEN }}
+    - name: Build and push coordinator docker
+      uses: docker/build-push-action@v2
+      with:
+        context: .
+        file: ./build/dockerfiles/coordinator.Dockerfile
+        push: true
+        tags: scrolltech/coordinator:${{github.ref_name}}
+        # cache-from: type=gha,scope=${{ github.workflow }}
+        # cache-to: type=gha,scope=${{ github.workflow }}
+    - name: Build and push event_watcher docker
+      uses: docker/build-push-action@v2
+      with:
+        context: .
+        file: ./build/dockerfiles/event_watcher.Dockerfile
+        push: true
+        tags: scrolltech/event-watcher:${{github.ref_name}}
+        # cache-from: type=gha,scope=${{ github.workflow }}
+        # cache-to: type=gha,scope=${{ github.workflow }}
+    - name: Build and push gas_oracle docker
+      uses: docker/build-push-action@v2
+      with:
+        context: .
+        file: ./build/dockerfiles/gas_oracle.Dockerfile
+        push: true
+        tags: scrolltech/gas-oracle:${{github.ref_name}}
+        # cache-from: type=gha,scope=${{ github.workflow }}
+        # cache-to: type=gha,scope=${{ github.workflow }}
+    - name: Build and push msg_relayer docker
+      uses: docker/build-push-action@v2
+      with:
+        context: .
+        file: ./build/dockerfiles/msg_relayer.Dockerfile
+        push: true
+        tags: scrolltech/msg-relayer:${{github.ref_name}}
+        # cache-from: type=gha,scope=${{ github.workflow }}
+        # cache-to: type=gha,scope=${{ github.workflow }}
+    - name: Build and push rollup_relayer docker
+      uses: docker/build-push-action@v2
+      with:
+        context: .
+        file: ./build/dockerfiles/rollup_relayer.Dockerfile
+        push: true
+        tags: scrolltech/rollup-relayer:${{github.ref_name}}
+        # cache-from: type=gha,scope=${{ github.workflow }}
+        # cache-to: type=gha,scope=${{ github.workflow }}
+    - name: Build and push bridgehistoryapi-cross-msg-fetcher docker
+      uses: docker/build-push-action@v2
+      with:
+        context: .
+        file: ./build/dockerfiles/bridgehistoryapi-cross-msg-fetcher.Dockerfile
+        push: true
+        tags: scrolltech/bridgehistoryapi-cross-msg-fetcher:${{github.ref_name}}
+        # cache-from: type=gha,scope=${{ github.workflow }}
+        # cache-to: type=gha,scope=${{ github.workflow }}
+    - name: Build and push bridgehistoryapi-server docker
+      uses: docker/build-push-action@v2
+      with:
+        context: .
+        file: ./build/dockerfiles/bridgehistoryapi-server.Dockerfile
+        push: true
+        tags: scrolltech/bridgehistoryapi-server:${{github.ref_name}}
+        # cache-from: type=gha,scope=${{ github.workflow }}
+        # cache-to: type=gha,scope=${{ github.workflow }}

.github/workflows/roller.yml

@@ -46,9 +46,7 @@ jobs:
     - name: Test
       run: |
         make roller
-        export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:./prover/lib
-        export CHAIN_ID=534353
-        go test -v ./...
+        go test -tags="mock_prover" -v ./...
   check:
     runs-on: ubuntu-latest
     steps:

Jenkinsfile

@@ -24,11 +24,12 @@ pipeline {
                     steps {
                         sh 'make dev_docker'
                         sh 'make -C bridge mock_abi'
+                        sh 'make -C common/bytecode all'
                     }
                 }
                 stage('Check Bridge Compilation') {
                     steps {
-                        sh 'make -C bridge bridge'
+                        sh 'make -C bridge bridge_bins'
                     }
                 }
                 stage('Check Coordinator Compilation') {
@@ -42,16 +43,6 @@ pipeline {
                         sh 'make -C database db_cli'
                     }
                 }
-                stage('Check Bridge Docker Build') {
-                    steps {
-                        sh 'make -C bridge docker'
-                    }
-                }
-                stage('Check Coordinator Docker Build') {
-                    steps {
-                        sh 'make -C coordinator docker'
-                    }
-                }
                 stage('Check Database Docker Build') {
                     steps {
                         sh 'make -C database docker'
@@ -68,12 +59,12 @@ pipeline {
                 }
                 stage('Race test bridge package') {
                     steps {
-                        sh 'go test -v -race -coverprofile=coverage.bridge.txt -covermode=atomic scroll-tech/bridge/...'
+                        sh "cd ./bridge && ../build/run_tests.sh bridge"
                     }
                 }
                 stage('Race test coordinator package') {
                     steps {
-                        sh 'go test -v -race -coverprofile=coverage.coordinator.txt -covermode=atomic scroll-tech/coordinator/...'
+                        sh 'cd ./coordinator && go test -exec "env LD_LIBRARY_PATH=${PWD}/verifier/lib" -v -race -gcflags="-l" -ldflags="-s=false" -coverpkg="scroll-tech/coordinator" -coverprofile=../coverage.coordinator.txt -covermode=atomic ./...'
                     }
                 }
                 stage('Race test database package') {

Makefile

@@ -13,6 +13,7 @@ lint: ## The code's format and security checks.
 	make -C coordinator lint
 	make -C database lint
 	make -C roller lint
+	make -C bridge-history-api lint
 
 update: ## update dependencies
 	go work sync

README.md

@@ -1,3 +1,12 @@
 # Scroll Monorepo
 
 [![Contracts](https://github.com/scroll-tech/scroll/actions/workflows/contracts.yaml/badge.svg)](https://github.com/scroll-tech/scroll/actions/workflows/contracts.yaml) [![Bridge](https://github.com/scroll-tech/scroll/actions/workflows/bridge.yml/badge.svg)](https://github.com/scroll-tech/scroll/actions/workflows/bridge.yml) [![Coordinator](https://github.com/scroll-tech/scroll/actions/workflows/coordinator.yml/badge.svg)](https://github.com/scroll-tech/scroll/actions/workflows/coordinator.yml) [![Database](https://github.com/scroll-tech/scroll/actions/workflows/database.yml/badge.svg)](https://github.com/scroll-tech/scroll/actions/workflows/database.yml) [![Common](https://github.com/scroll-tech/scroll/actions/workflows/common.yml/badge.svg)](https://github.com/scroll-tech/scroll/actions/workflows/common.yml) [![Roller](https://github.com/scroll-tech/scroll/actions/workflows/roller.yml/badge.svg)](https://github.com/scroll-tech/scroll/actions/workflows/roller.yml)
+
+## Prerequisites
++ go1.18
++ rust (for version, see [rust-toolchain](./common/libzkp/impl/rust-toolchain))
++ hardhat / foundry
+
+---
+
+For a more comprehensive doc, see [`docs/`](./docs).

bridge-history-api/.gitignore

@@ -0,0 +1 @@
+/build/bin

bridge-history-api/Makefile

@@ -0,0 +1,26 @@
+.PHONY: lint
+REPO_ROOT_DIR=./..
+IMAGE_VERSION=latest
+
+lint: ## Lint the files - used for CI
+	GOBIN=$(PWD)/build/bin go run ../build/lint.go
+
+test:
+	go test -v -race -coverprofile=coverage.txt -covermode=atomic -p 1 $(PWD)/...
+
+bridgehistoryapi-db-cli:
+	go build -o $(PWD)/build/bin/bridgehistoryapi-db-cli ./cmd/db_cli
+	
+bridgehistoryapi-cross-msg-fetcher:
+	go build -o $(PWD)/build/bin/bridgehistoryapi-cross-msg-fetcher ./cmd/cross_msg_fetcher
+
+bridgehistoryapi-server:
+	go build -o $(PWD)/build/bin/bridgehistoryapi-server ./cmd/backend_server
+
+db-docker:
+	docker run --name bridgehistoryapi-history-db -p 5444:5432 -e POSTGRES_PASSWORD=123456 -e POSTGRES_DB=test -d postgres
+
+bridgehistoryapi-docker:
+	DOCKER_BUILDKIT=1 docker build -t scrolltech/bridgehistoryapi-cross-msg-fetcher:${IMAGE_VERSION} ${REPO_ROOT_DIR}/ -f ${REPO_ROOT_DIR}/build/dockerfiles/bridgehistoryapi-cross-msg-fetcher.Dockerfile
+	DOCKER_BUILDKIT=1 docker build -t scrolltech/bridgehistoryapi-server:${IMAGE_VERSION} ${REPO_ROOT_DIR}/ -f ${REPO_ROOT_DIR}/build/dockerfiles/bridgehistoryapi-server.Dockerfile
+	DOCKER_BUILDKIT=1 docker build -t scrolltech/bridgehistoryapi-db-cli:${IMAGE_VERSION} ${REPO_ROOT_DIR}/ -f ${REPO_ROOT_DIR}/build/dockerfiles/bridgehistoryapi-db-cli.Dockerfile

bridge-history-api/README.md

@@ -0,0 +1 @@
+# bridge-history-api

bridge-history-api/cmd/backend_server/app/app.go

@@ -0,0 +1,95 @@
+package app
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/ethereum/go-ethereum/log"
+	"github.com/kataras/iris/v12"
+	"github.com/kataras/iris/v12/mvc"
+	"github.com/urfave/cli/v2"
+
+	"bridge-history-api/config"
+	"bridge-history-api/controller"
+	"bridge-history-api/db"
+	"bridge-history-api/service"
+	cutils "bridge-history-api/utils"
+)
+
+var (
+	app *cli.App
+)
+
+var database db.OrmFactory
+
+func pong(ctx iris.Context) {
+	ctx.WriteString("pong")
+}
+
+func setupQueryByAddressHandler(backend_app *mvc.Application) {
+	// Register Dependencies.
+	backend_app.Register(
+		database,
+		service.NewHistoryService,
+	)
+
+	// Register Controllers.
+	backend_app.Handle(new(controller.QueryAddressController))
+}
+
+func setupQueryByHashHandler(backend_app *mvc.Application) {
+	backend_app.Register(
+		database,
+		service.NewHistoryService,
+	)
+	backend_app.Handle(new(controller.QueryHashController))
+}
+
+func init() {
+	app = cli.NewApp()
+
+	app.Action = action
+	app.Name = "Scroll Bridge History Web Service"
+	app.Usage = "The Scroll Bridge History Web Service"
+	app.Flags = append(app.Flags, cutils.CommonFlags...)
+	app.Commands = []*cli.Command{}
+
+	app.Before = func(ctx *cli.Context) error {
+		return cutils.LogSetup(ctx)
+	}
+}
+
+func action(ctx *cli.Context) error {
+	// Load config file.
+	cfgFile := ctx.String(cutils.ConfigFileFlag.Name)
+	cfg, err := config.NewConfig(cfgFile)
+	if err != nil {
+		log.Crit("failed to load config file", "config file", cfgFile, "error", err)
+	}
+	database, err = db.NewOrmFactory(cfg)
+	if err != nil {
+		log.Crit("can not connect to database", "err", err)
+	}
+	defer database.Close()
+	bridgeApp := iris.New()
+	bridgeApp.Get("/ping", pong).Describe("healthcheck")
+
+	mvc.Configure(bridgeApp.Party("/api/txs"), setupQueryByAddressHandler)
+	mvc.Configure(bridgeApp.Party("/api/txsbyhashes"), setupQueryByHashHandler)
+
+	// TODO: make debug mode configurable
+	err = bridgeApp.Listen(":8080", iris.WithLogLevel("debug"))
+	if err != nil {
+		log.Crit("can not start server", "err", err)
+	}
+
+	return nil
+}
+
+// Run event watcher cmd instance.
+func Run() {
+	if err := app.Run(os.Args); err != nil {
+		_, _ = fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+}

bridge-history-api/cmd/backend_server/main.go

@@ -0,0 +1,7 @@
+package main
+
+import "bridge-history-api/cmd/backend_server/app"
+
+func main() {
+	app.Run()
+}

bridge-history-api/cmd/cross_msg_fetcher/app/app.go

@@ -0,0 +1,117 @@
+package app
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/signal"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/ethclient"
+	"github.com/ethereum/go-ethereum/log"
+	"github.com/urfave/cli/v2"
+
+	"bridge-history-api/config"
+	"bridge-history-api/cross_msg"
+	"bridge-history-api/db"
+	cutils "bridge-history-api/utils"
+)
+
+var (
+	app *cli.App
+)
+
+func init() {
+	app = cli.NewApp()
+
+	app.Action = action
+	app.Name = "Scroll Bridge History API"
+	app.Usage = "The Scroll Bridge Web Backend"
+	app.Flags = append(app.Flags, cutils.CommonFlags...)
+	app.Commands = []*cli.Command{}
+
+	app.Before = func(ctx *cli.Context) error {
+		return cutils.LogSetup(ctx)
+	}
+}
+
+func action(ctx *cli.Context) error {
+	// Load config file.
+	cfgFile := ctx.String(cutils.ConfigFileFlag.Name)
+	cfg, err := config.NewConfig(cfgFile)
+	if err != nil {
+		log.Crit("failed to load config file", "config file", cfgFile, "error", err)
+	}
+	subCtx, cancel := context.WithCancel(ctx.Context)
+	defer cancel()
+
+	l1client, err := ethclient.Dial(cfg.L1.Endpoint)
+	if err != nil {
+		log.Crit("failed to connect l1 geth", "config file", cfgFile, "error", err)
+	}
+	l2client, err := ethclient.Dial(cfg.L2.Endpoint)
+	if err != nil {
+		log.Crit("failed to connect l2 geth", "config file", cfgFile, "error", err)
+	}
+	db, err := db.NewOrmFactory(cfg)
+	if err != nil {
+		log.Crit("failed to connect to db", "config file", cfgFile, "error", err)
+	}
+
+	l1worker := &cross_msg.FetchEventWorker{F: cross_msg.L1FetchAndSaveEvents, G: cross_msg.GetLatestL1ProcessedHeight, Name: "L1 events fetch Worker"}
+
+	l2worker := &cross_msg.FetchEventWorker{F: cross_msg.L2FetchAndSaveEvents, G: cross_msg.GetLatestL2ProcessedHeight, Name: "L2 events fetch Worker"}
+
+	l1AddressList := []common.Address{
+		common.HexToAddress(cfg.L1.CustomERC20GatewayAddr),
+		common.HexToAddress(cfg.L1.ERC721GatewayAddr),
+		common.HexToAddress(cfg.L1.ERC1155GatewayAddr),
+		common.HexToAddress(cfg.L1.MessengerAddr),
+		common.HexToAddress(cfg.L1.ETHGatewayAddr),
+		common.HexToAddress(cfg.L1.StandardERC20Gateway),
+		common.HexToAddress(cfg.L1.WETHGatewayAddr),
+	}
+
+	l2AddressList := []common.Address{
+		common.HexToAddress(cfg.L2.CustomERC20GatewayAddr),
+		common.HexToAddress(cfg.L2.ERC721GatewayAddr),
+		common.HexToAddress(cfg.L2.ERC1155GatewayAddr),
+		common.HexToAddress(cfg.L2.MessengerAddr),
+		common.HexToAddress(cfg.L2.ETHGatewayAddr),
+		common.HexToAddress(cfg.L2.StandardERC20Gateway),
+		common.HexToAddress(cfg.L2.WETHGatewayAddr),
+	}
+
+	l1crossMsgFetcher, err := cross_msg.NewCrossMsgFetcher(subCtx, cfg.L1, db, l1client, l1worker, l1AddressList, cross_msg.L1ReorgHandling)
+	if err != nil {
+		log.Crit("failed to create l1 cross message fetcher", "error", err)
+	}
+
+	go l1crossMsgFetcher.Start()
+	defer l1crossMsgFetcher.Stop()
+
+	l2crossMsgFetcher, err := cross_msg.NewCrossMsgFetcher(subCtx, cfg.L2, db, l2client, l2worker, l2AddressList, cross_msg.L2ReorgHandling)
+	if err != nil {
+		log.Crit("failed to create l2 cross message fetcher", "error", err)
+	}
+
+	go l2crossMsgFetcher.Start()
+	defer l2crossMsgFetcher.Stop()
+
+	// Catch CTRL-C to ensure a graceful shutdown.
+	interrupt := make(chan os.Signal, 1)
+	signal.Notify(interrupt, os.Interrupt)
+
+	// Wait until the interrupt signal is received from an OS signal.
+	<-interrupt
+
+	return nil
+}
+
+// Run event watcher cmd instance.
+func Run() {
+	if err := app.Run(os.Args); err != nil {
+		_, _ = fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+}

bridge-history-api/cmd/cross_msg_fetcher/main.go

@@ -0,0 +1,7 @@
+package main
+
+import "bridge-history-api/cmd/cross_msg_fetcher/app"
+
+func main() {
+	app.Run()
+}

bridge-history-api/cmd/db_cli/app/app.go

@@ -0,0 +1,75 @@
+package app
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/urfave/cli/v2"
+
+	"bridge-history-api/utils"
+)
+
+var (
+	// Set up database app info.
+	app *cli.App
+)
+
+func init() {
+	app = cli.NewApp()
+	// Set up database app info.
+	app.Name = "db_cli"
+	app.Usage = "The Scroll Bridge-history-api DB CLI"
+	app.Flags = append(app.Flags, utils.CommonFlags...)
+
+	app.Before = func(ctx *cli.Context) error {
+		return utils.LogSetup(ctx)
+	}
+
+	app.Commands = []*cli.Command{
+		{
+			Name:   "reset",
+			Usage:  "Clean and reset database.",
+			Action: resetDB,
+			Flags:  []cli.Flag{&utils.ConfigFileFlag},
+		},
+		{
+			Name:   "status",
+			Usage:  "Check migration status.",
+			Action: checkDBStatus,
+			Flags:  []cli.Flag{&utils.ConfigFileFlag},
+		},
+		{
+			Name:   "version",
+			Usage:  "Display the current database version.",
+			Action: dbVersion,
+			Flags:  []cli.Flag{&utils.ConfigFileFlag},
+		},
+		{
+			Name:   "migrate",
+			Usage:  "Migrate the database to the latest version.",
+			Action: migrateDB,
+			Flags:  []cli.Flag{&utils.ConfigFileFlag},
+		},
+		{
+			Name:   "rollback",
+			Usage:  "Roll back the database to a previous <version>. Rolls back a single migration if no version specified.",
+			Action: rollbackDB,
+			Flags: []cli.Flag{
+				&utils.ConfigFileFlag,
+				&cli.IntFlag{
+					Name:  "version",
+					Usage: "Rollback to the specified version.",
+					Value: 0,
+				}},
+		},
+	}
+}
+
+// Run database cmd instance.
+func Run() {
+	// RunApp the db_cli.
+	if err := app.Run(os.Args); err != nil {
+		_, _ = fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+}

bridge-history-api/cmd/db_cli/app/client.go

@@ -0,0 +1,108 @@
+package app
+
+import (
+	"github.com/ethereum/go-ethereum/log"
+	"github.com/jmoiron/sqlx"
+	"github.com/urfave/cli/v2"
+
+	"bridge-history-api/config"
+	"bridge-history-api/db"
+	"bridge-history-api/db/migrate"
+	"bridge-history-api/utils"
+)
+
+func getConfig(ctx *cli.Context) (*config.Config, error) {
+	file := ctx.String(utils.ConfigFileFlag.Name)
+	dbCfg, err := config.NewConfig(file)
+	if err != nil {
+		return nil, err
+	}
+	return dbCfg, nil
+}
+
+func initDB(dbCfg *config.Config) (*sqlx.DB, error) {
+	factory, err := db.NewOrmFactory(dbCfg)
+	if err != nil {
+		return nil, err
+	}
+	log.Debug("Got db config from env", "driver name", dbCfg.DB.DriverName, "dsn", dbCfg.DB.DSN)
+
+	return factory.GetDB(), nil
+}
+
+// resetDB clean or reset database.
+func resetDB(ctx *cli.Context) error {
+	cfg, err := getConfig(ctx)
+	if err != nil {
+		return err
+	}
+	db, err := initDB(cfg)
+	if err != nil {
+		return err
+	}
+	err = migrate.ResetDB(db.DB)
+	if err != nil {
+		return err
+	}
+	log.Info("successful to reset")
+	return nil
+}
+
+// checkDBStatus check db status
+func checkDBStatus(ctx *cli.Context) error {
+	cfg, err := getConfig(ctx)
+	if err != nil {
+		return err
+	}
+	db, err := initDB(cfg)
+	if err != nil {
+		return err
+	}
+
+	return migrate.Status(db.DB)
+}
+
+// dbVersion return the latest version
+func dbVersion(ctx *cli.Context) error {
+	cfg, err := getConfig(ctx)
+	if err != nil {
+		return err
+	}
+	db, err := initDB(cfg)
+	if err != nil {
+		return err
+	}
+
+	version, err := migrate.Current(db.DB)
+	log.Info("show database version", "db version", version)
+
+	return err
+}
+
+// migrateDB migrate db
+func migrateDB(ctx *cli.Context) error {
+	cfg, err := getConfig(ctx)
+	if err != nil {
+		return err
+	}
+	db, err := initDB(cfg)
+	if err != nil {
+		return err
+	}
+
+	return migrate.Migrate(db.DB)
+}
+
+// rollbackDB rollback db by version
+func rollbackDB(ctx *cli.Context) error {
+	cfg, err := getConfig(ctx)
+	if err != nil {
+		return err
+	}
+	db, err := initDB(cfg)
+	if err != nil {
+		return err
+	}
+	version := ctx.Int64("version")
+	return migrate.Rollback(db.DB, &version)
+}

bridge-history-api/cmd/db_cli/main.go

@@ -0,0 +1,7 @@
+package main
+
+import "bridge-history-api/cmd/db_cli/app"
+
+func main() {
+	app.Run()
+}

bridge-history-api/config.json

@@ -0,0 +1,34 @@
+{
+	"l1": {
+		"confirmation": 64,
+		"endpoint": "https://rpc.ankr.com/eth_goerli",
+		"startHeight": 8890194 ,
+		"blockTime": 10,
+		"MessengerAddr": "0x5260e38080BFe97e6C4925d9209eCc5f964373b6",
+		"ETHGatewayAddr": "0x429b73A21cF3BF1f3E696a21A95408161daF311f",
+		"WETHGatewayAddr": "0x8be69E499D8848DfFb4cF9bac909f3e2cF2FeFa0",
+		"StandardERC20Gateway": "0xeF37207c1A1efF6D6a9d7BfF3cF4270e406d319b",
+		"CustomERC20GatewayAddr": "0x920f906B814597cF5DC76F95100F09CBAF9c5748",
+		"ERC721GatewayAddr": "0x1C441Dfc5C2eD7A2AA8636748A664E59CB029157",
+		"ERC1155GatewayAddr": "0xd1bE599aaCBC21448fD6373bbc7c1b4c7806f135"
+	},
+	"l2": {
+		"confirmation": 1,
+		"endpoint": "https://alpha-rpc.scroll.io/l2",
+		"blockTime": 3,
+		"startHeight": 1600068,
+		"CustomERC20GatewayAddr": "0xa07Cb742657294C339fB4d5d6CdF3fdBeE8C1c68",
+		"ERC721GatewayAddr": "0x8Fee20e0C0Ef16f2898a8073531a857D11b9C700",
+		"StandardERC20Gateway": "0xB878F37BB278bf0e4974856fFe86f5e6F66BD725",
+		"MessengerAddr": "0xb75d7e84517e1504C151B270255B087Fd746D34C",
+		"ETHGatewayAddr": "0x32139B5C8838E94fFcD83E60dff95Daa7F0bA14c",
+		"WETHGatewayAddr": "0xBb88bF582F2BBa46702621dae5CB9271057bC85b",
+		"ERC1155GatewayAddr": "0x2946cB860028276b3C4bccE1767841641C2E0828"
+	},
+	"db": {
+		"dsn": "postgres://postgres:1234@localhost:5444/test?sslmode=disable",
+		"driverName": "postgres",
+		"maxOpenNum": 200,
+		"maxIdleNum": 20
+	}
+}

bridge-history-api/config/config.go

@@ -0,0 +1,57 @@
+package config
+
+import (
+	"encoding/json"
+	"os"
+	"path/filepath"
+)
+
+// DBConfig db config
+type DBConfig struct {
+	// data source name
+	DSN        string `json:"dsn"`
+	DriverName string `json:"driverName"`
+
+	MaxOpenNum int `json:"maxOpenNum"`
+	MaxIdleNum int `json:"maxIdleNum"`
+}
+
+type LayerConfig struct {
+	Confirmation           uint64 `json:"confirmation"`
+	Endpoint               string `json:"endpoint"`
+	StartHeight            uint64 `json:"startHeight"`
+	BlockTime              int64  `json:"blockTime"`
+	MessengerAddr          string `json:"MessengerAddr"`
+	ETHGatewayAddr         string `json:"ETHGatewayAddr"`
+	WETHGatewayAddr        string `json:"WETHGatewayAddr"`
+	StandardERC20Gateway   string `json:"StandardERC20Gateway"`
+	ERC721GatewayAddr      string `json:"ERC721GatewayAddr"`
+	ERC1155GatewayAddr     string `json:"ERC1155GatewayAddr"`
+	CustomERC20GatewayAddr string `json:"CustomERC20GatewayAddr"`
+}
+
+// Config is the configuration of the bridge history backend
+type Config struct {
+	// chain config
+	L1 *LayerConfig `json:"l1"`
+	L2 *LayerConfig `json:"l2"`
+
+	// data source name
+	DB *DBConfig `json:"db"`
+}
+
+// NewConfig returns a new instance of Config.
+func NewConfig(file string) (*Config, error) {
+	buf, err := os.ReadFile(filepath.Clean(file))
+	if err != nil {
+		return nil, err
+	}
+
+	cfg := &Config{}
+	err = json.Unmarshal(buf, cfg)
+	if err != nil {
+		return nil, err
+	}
+
+	return cfg, nil
+}

bridge-history-api/controller/controller.go

@@ -0,0 +1,37 @@
+package controller
+
+import (
+	"bridge-history-api/model"
+	"bridge-history-api/service"
+
+	"github.com/ethereum/go-ethereum/common"
+)
+
+type QueryAddressController struct {
+	Service service.HistoryService
+}
+
+type QueryHashController struct {
+	Service service.HistoryService
+}
+
+func (c *QueryAddressController) Get(req model.QueryByAddressRequest) (*model.QueryByAddressResponse, error) {
+	message, err := c.Service.GetTxsByAddress(common.HexToAddress(req.Address), int64(req.Offset), int64(req.Limit))
+	if err != nil {
+		return &model.QueryByAddressResponse{Message: "500", Data: &model.Data{}}, err
+	}
+
+	return &model.QueryByAddressResponse{Message: "ok",
+		Data: &model.Data{
+			Result: message,
+			Total:  len(message),
+		}}, nil
+}
+
+func (c *QueryHashController) Post(req model.QueryByHashRequest) (*model.QueryByHashResponse, error) {
+	result, err := c.Service.GetTxsByHashes(req.Txs)
+	if err != nil {
+		return &model.QueryByHashResponse{Message: "500", Data: &model.Data{}}, err
+	}
+	return &model.QueryByHashResponse{Message: "ok", Data: &model.Data{Result: result}}, nil
+}

bridge-history-api/cross_msg/cross_msg_fetcher.go

@@ -0,0 +1,207 @@
+package cross_msg
+
+import (
+	"context"
+	"fmt"
+	"math/big"
+	"sync"
+	"time"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/ethclient"
+	"github.com/ethereum/go-ethereum/log"
+	"github.com/modern-go/reflect2"
+
+	"bridge-history-api/config"
+	"bridge-history-api/db"
+	"bridge-history-api/utils"
+)
+
+type CrossMsgFetcher struct {
+	ctx           context.Context
+	config        *config.LayerConfig
+	db            db.OrmFactory
+	client        *ethclient.Client
+	worker        *FetchEventWorker
+	reorgHandling ReorgHandling
+	addressList   []common.Address
+	cachedHeaders []*types.Header
+	mu            *sync.Mutex
+	reorgStartCh  chan struct{}
+	reorgEndCh    chan struct{}
+}
+
+func NewCrossMsgFetcher(ctx context.Context, config *config.LayerConfig, db db.OrmFactory, client *ethclient.Client, worker *FetchEventWorker, addressList []common.Address, reorg ReorgHandling) (*CrossMsgFetcher, error) {
+	newMU := &sync.Mutex{}
+	crossMsgFetcher := &CrossMsgFetcher{
+		ctx:           ctx,
+		config:        config,
+		db:            db,
+		client:        client,
+		worker:        worker,
+		reorgHandling: reorg,
+		mu:            newMU,
+		addressList:   addressList,
+		cachedHeaders: make([]*types.Header, 0),
+		reorgStartCh:  make(chan struct{}),
+		reorgEndCh:    make(chan struct{}),
+	}
+	return crossMsgFetcher, nil
+}
+
+func (c *CrossMsgFetcher) Start() {
+	log.Info("CrossMsgFetcher Start")
+	// fetch missing events from finalized blocks, we don't handle reorgs here
+	c.forwardFetchAndSaveMissingEvents(c.config.Confirmation)
+
+	tick := time.NewTicker(time.Duration(c.config.BlockTime) * time.Second)
+	headerTick := time.NewTicker(time.Duration(c.config.BlockTime/2) * time.Second)
+	go func() {
+		for {
+			select {
+			case <-c.reorgStartCh:
+				// create timeout here
+				timeout := time.NewTicker(300 * time.Second)
+				select {
+				case <-c.reorgEndCh:
+					log.Info("Reorg finished")
+					timeout.Stop()
+				case <-timeout.C:
+					// TODO: need to notify the on-call members to handle reorg manually
+					timeout.Stop()
+					log.Crit("Reorg timeout")
+				}
+			case <-c.ctx.Done():
+				tick.Stop()
+				return
+			case <-tick.C:
+				c.mu.Lock()
+				c.forwardFetchAndSaveMissingEvents(0)
+				c.mu.Unlock()
+			}
+		}
+	}()
+
+	go func() {
+		for {
+			select {
+			case <-c.ctx.Done():
+				headerTick.Stop()
+				return
+			case <-headerTick.C:
+				c.fetchMissingLatestHeaders()
+			}
+		}
+	}()
+}
+
+func (c *CrossMsgFetcher) Stop() {
+	c.db.Close()
+	log.Info("CrossMsgFetcher Stop")
+}
+
+// forwardFetchAndSaveMissingEvents will fetch all events from the latest processed height to the latest block number.
+func (c *CrossMsgFetcher) forwardFetchAndSaveMissingEvents(confirmation uint64) {
+	// if we fetch to the latest block, shall not exceed cachedHeaders
+	var number uint64
+	var err error
+	if len(c.cachedHeaders) != 0 && confirmation <= 0 {
+		number = c.cachedHeaders[len(c.cachedHeaders)-1].Number.Uint64() - 1
+	} else {
+		number, err = utils.GetSafeBlockNumber(c.ctx, c.client, confirmation)
+		if err != nil {
+			log.Error(fmt.Sprintf("%s: can not get the safe block number", c.worker.Name), "err", err)
+			return
+		}
+	}
+	if reflect2.IsNil(c.worker.G) || reflect2.IsNil(c.worker.F) {
+		log.Error(fmt.Sprintf("%s: invalid get/fetch function", c.worker.Name))
+		return
+	}
+	processed_height, err := c.worker.G(c.db)
+	if err != nil {
+		log.Error(fmt.Sprintf("%s: can not get latest processed block height", c.worker.Name))
+	}
+	log.Info(fmt.Sprintf("%s: ", c.worker.Name), "height", processed_height)
+	if processed_height <= 0 || processed_height < int64(c.config.StartHeight) {
+		processed_height = int64(c.config.StartHeight)
+	} else {
+		processed_height += 1
+	}
+	for n := processed_height; n <= int64(number); n += FETCH_LIMIT {
+		iter_end := n + FETCH_LIMIT - 1
+		if iter_end > int64(number) {
+			iter_end = int64(number)
+		}
+		err := c.worker.F(c.ctx, c.client, c.db, n, iter_end, c.addressList)
+		if err != nil {
+			log.Error(fmt.Sprintf("%s: failed!", c.worker.Name), "err", err)
+			break
+		}
+	}
+}
+
+func (c *CrossMsgFetcher) fetchMissingLatestHeaders() {
+	var start int64
+	number, err := c.client.BlockNumber(c.ctx)
+	if err != nil {
+		log.Error("fetchMissingLatestHeaders(): can not get the latest block number", "err", err)
+		return
+	}
+
+	if len(c.cachedHeaders) > 0 {
+		start = c.cachedHeaders[len(c.cachedHeaders)-1].Number.Int64() + 1
+	} else {
+		start = int64(number - c.config.Confirmation)
+	}
+	for i := start; i <= int64(number); i++ {
+		select {
+		case <-c.ctx.Done():
+			close(c.reorgStartCh)
+			close(c.reorgEndCh)
+			return
+		default:
+			header, err := c.client.HeaderByNumber(c.ctx, big.NewInt(int64(i)))
+			if err != nil {
+				log.Error("failed to get latest header", "err", err)
+				return
+			}
+			if len(c.cachedHeaders) == 0 {
+				c.cachedHeaders = MergeAddIntoHeaderList(c.cachedHeaders, []*types.Header{header}, int(c.config.Confirmation))
+				return
+			}
+			//check if the fetched header is child from the last cached header
+			if IsParentAndChild(c.cachedHeaders[len(c.cachedHeaders)-1], header) {
+				c.cachedHeaders = MergeAddIntoHeaderList(c.cachedHeaders, []*types.Header{header}, int(c.config.Confirmation))
+				log.Debug("fetched block into cache", "height", header.Number, "parent hash", header.ParentHash.Hex(), "block hash", c.cachedHeaders[len(c.cachedHeaders)-1].Hash().Hex(), "len", len(c.cachedHeaders))
+				continue
+			}
+			// reorg happened
+			log.Warn("Reorg happened", "height", header.Number, "parent hash", header.ParentHash.Hex(), "last cached hash", c.cachedHeaders[len(c.cachedHeaders)-1].Hash().Hex(), "last cached height", c.cachedHeaders[len(c.cachedHeaders)-1].Number)
+			c.reorgStartCh <- struct{}{}
+			// waiting here if there is fetcher running
+			c.mu.Lock()
+			index, ok, validHeaders := BackwardFindReorgBlock(c.ctx, c.cachedHeaders, c.client, header)
+			if !ok {
+				log.Error("Reorg happended too earlier than cached headers", "reorg height", header.Number)
+				num, err := utils.GetSafeBlockNumber(c.ctx, c.client, c.config.Confirmation)
+				if err != nil {
+					log.Crit("Can not get safe number during reorg, quit the process", "err", err)
+				}
+				// clear all our saved data, because no data is safe now
+				c.reorgHandling(c.ctx, int64(num), c.db)
+				c.cachedHeaders = c.cachedHeaders[:0]
+				c.mu.Unlock()
+				c.reorgEndCh <- struct{}{}
+				return
+			}
+			c.reorgHandling(c.ctx, c.cachedHeaders[index].Number.Int64(), c.db)
+			c.cachedHeaders = c.cachedHeaders[:index+1]
+			c.cachedHeaders = MergeAddIntoHeaderList(c.cachedHeaders, validHeaders, int(c.config.Confirmation))
+			c.mu.Unlock()
+			c.reorgEndCh <- struct{}{}
+		}
+	}
+
+}

bridge-history-api/cross_msg/fetch_missing_event.go

@@ -0,0 +1,489 @@
+package cross_msg
+
+import (
+	"context"
+	"math/big"
+
+	geth "github.com/ethereum/go-ethereum"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/ethclient"
+	"github.com/ethereum/go-ethereum/log"
+	"github.com/jmoiron/sqlx"
+
+	backendabi "bridge-history-api/abi"
+	"bridge-history-api/db"
+	"bridge-history-api/db/orm"
+	"bridge-history-api/utils"
+)
+
+// Todo : read from config
+var (
+	// the number of blocks fetch per round
+	FETCH_LIMIT = int64(3000)
+)
+
+// FetchAndSave is a function type that fetches events from blockchain and saves them to database
+type FetchAndSave func(ctx context.Context, client *ethclient.Client, database db.OrmFactory, from int64, to int64, addressList []common.Address) error
+
+// GetLatestProcessed is a function type that gets the latest processed block height from database
+type GetLatestProcessed func(db db.OrmFactory) (int64, error)
+type UpdateXHash func(ctx context.Context)
+
+type FetchEventWorker struct {
+	F    FetchAndSave
+	G    GetLatestProcessed
+	Name string
+}
+
+type msgHashWrapper struct {
+	msgHash common.Hash
+	txHash  common.Hash
+}
+
+func GetLatestL1ProcessedHeight(db db.OrmFactory) (int64, error) {
+	crossHeight, err := db.GetLatestL1ProcessedHeight()
+	if err != nil {
+		log.Error("failed to get L1 cross message processed height: ", "err", err)
+		return 0, err
+	}
+	relayedHeight, err := db.GetLatestRelayedHeightOnL1()
+	if err != nil {
+		log.Error("failed to get L1 relayed message processed height: ", "err", err)
+		return 0, err
+	}
+	if crossHeight > relayedHeight {
+		return crossHeight, nil
+	} else {
+		return relayedHeight, nil
+	}
+}
+
+func GetLatestL2ProcessedHeight(db db.OrmFactory) (int64, error) {
+	crossHeight, err := db.GetLatestL2ProcessedHeight()
+	if err != nil {
+		log.Error("failed to get L2 cross message processed height", "err", err)
+		return 0, err
+	}
+	relayedHeight, err := db.GetLatestRelayedHeightFromL2()
+	if err != nil {
+		log.Error("failed to get L2 relayed message processed height", "err", err)
+		return 0, err
+	}
+	if crossHeight > relayedHeight {
+		return crossHeight, nil
+	} else {
+		return relayedHeight, nil
+	}
+}
+
+func L1FetchAndSaveEvents(ctx context.Context, client *ethclient.Client, database db.OrmFactory, from int64, to int64, addrList []common.Address) error {
+
+	query := geth.FilterQuery{
+		FromBlock: big.NewInt(from), // inclusive
+		ToBlock:   big.NewInt(to),   // inclusive
+		Addresses: addrList,
+		Topics:    make([][]common.Hash, 1),
+	}
+	query.Topics[0] = make([]common.Hash, 7)
+	query.Topics[0][0] = backendabi.L1DepositETHSig
+	query.Topics[0][1] = backendabi.L1DepositERC20Sig
+	query.Topics[0][2] = backendabi.L1RelayedMessageEventSignature
+	query.Topics[0][3] = backendabi.L1SentMessageEventSignature
+	query.Topics[0][4] = backendabi.L1DepositERC721Sig
+	query.Topics[0][5] = backendabi.L1DepositERC1155Sig
+	query.Topics[0][6] = backendabi.L1DepositWETHSig
+
+	logs, err := client.FilterLogs(ctx, query)
+	if err != nil {
+		log.Warn("Failed to get l1 event logs", "err", err)
+		return err
+	}
+	depositL1CrossMsgs, msgHashes, relayedMsg, err := parseBackendL1EventLogs(logs)
+	if err != nil {
+		log.Error("l1FetchAndSaveEvents: Failed to parse cross msg event logs", "err", err)
+		return err
+	}
+	dbTx, err := database.Beginx()
+	if err != nil {
+		log.Error("l2FetchAndSaveEvents: Failed to begin db transaction", "err", err)
+		return err
+	}
+	err = database.BatchInsertL1CrossMsgDBTx(dbTx, depositL1CrossMsgs)
+	if err != nil {
+		log.Error("l1FetchAndSaveEvents: Failed to insert cross msg event logs", "err", err)
+		return err
+	}
+
+	err = database.BatchInsertRelayedMsgDBTx(dbTx, relayedMsg)
+	if err != nil {
+		log.Error("l1FetchAndSaveEvents: Failed to insert relayed message event logs", "err", err)
+		return err
+	}
+	err = updateL1CrossMsgMsgHash(ctx, dbTx, database, msgHashes)
+	if err != nil {
+		log.Error("l1FetchAndSaveEvents: Failed to update msgHash in L1 cross msg", "err", err)
+		return err
+	}
+	err = dbTx.Commit()
+	if err != nil {
+		// if we can not insert into DB, there must something wrong, need a on-call member handle the dababase manually
+		log.Crit("l1FetchAndSaveEvents: Failed to commit db transaction", "err", err)
+	}
+
+	return nil
+}
+
+func L2FetchAndSaveEvents(ctx context.Context, client *ethclient.Client, database db.OrmFactory, from int64, to int64, addrList []common.Address) error {
+	query := geth.FilterQuery{
+		FromBlock: big.NewInt(from), // inclusive
+		ToBlock:   big.NewInt(to),   // inclusive
+		Addresses: addrList,
+		Topics:    make([][]common.Hash, 1),
+	}
+	query.Topics[0] = make([]common.Hash, 7)
+	query.Topics[0][0] = backendabi.L2WithdrawETHSig
+	query.Topics[0][1] = backendabi.L2WithdrawERC20Sig
+	query.Topics[0][2] = backendabi.L2RelayedMessageEventSignature
+	query.Topics[0][3] = backendabi.L2SentMessageEventSignature
+	query.Topics[0][4] = backendabi.L2WithdrawERC721Sig
+	query.Topics[0][5] = backendabi.L2WithdrawERC1155Sig
+	query.Topics[0][6] = backendabi.L2WithdrawWETHSig
+
+	logs, err := client.FilterLogs(ctx, query)
+	if err != nil {
+		log.Warn("Failed to get l2 event logs", "err", err)
+		return err
+	}
+	depositL2CrossMsgs, msgHashes, relayedMsg, err := parseBackendL2EventLogs(logs)
+	if err != nil {
+		log.Error("l2FetchAndSaveEvents: Failed to parse cross msg event logs", "err", err)
+		return err
+	}
+	dbTx, err := database.Beginx()
+	if err != nil {
+		log.Error("l2FetchAndSaveEvents: Failed to begin db transaction", "err", err)
+		return err
+	}
+	err = database.BatchInsertL2CrossMsgDBTx(dbTx, depositL2CrossMsgs)
+	if err != nil {
+		log.Error("l2FetchAndSaveEvents: Failed to insert cross msg event logs", "err", err)
+		return err
+	}
+
+	err = database.BatchInsertRelayedMsgDBTx(dbTx, relayedMsg)
+	if err != nil {
+		log.Error("l2FetchAndSaveEvents: Failed to insert relayed message event logs", "err", err)
+		return err
+	}
+	err = updateL2CrossMsgMsgHash(ctx, dbTx, database, msgHashes)
+	if err != nil {
+		log.Error("l2FetchAndSaveEvents: Failed to update msgHash in L2 cross msg", "err", err)
+		return err
+	}
+	err = dbTx.Commit()
+	if err != nil {
+		// if we can not insert into DB, there must something wrong, need a on-call member handle the dababase manually
+		log.Crit("l2FetchAndSaveEvents: Failed to commit db transaction", "err", err)
+	}
+
+	return nil
+}
+
+func parseBackendL1EventLogs(logs []types.Log) ([]*orm.L1CrossMsg, []msgHashWrapper, []*orm.RelayedMsg, error) {
+	// Need use contract abi to parse event Log
+	// Can only be tested after we have our contracts set up
+
+	var l1CrossMsg []*orm.L1CrossMsg
+	var relayedMsgs []*orm.RelayedMsg
+	var msgHashes []msgHashWrapper
+	for _, vlog := range logs {
+		switch vlog.Topics[0] {
+		case backendabi.L1DepositETHSig:
+			event := backendabi.DepositETH{}
+			err := utils.UnpackLog(backendabi.L1ETHGatewayABI, &event, "DepositETH", vlog)
+			if err != nil {
+				log.Warn("Failed to unpack DepositETH event", "err", err)
+				return l1CrossMsg, msgHashes, relayedMsgs, err
+			}
+			l1CrossMsg = append(l1CrossMsg, &orm.L1CrossMsg{
+				Height:     vlog.BlockNumber,
+				Sender:     event.From.String(),
+				Target:     event.To.String(),
+				Amount:     event.Amount.String(),
+				Asset:      int(orm.ETH),
+				Layer1Hash: vlog.TxHash.Hex(),
+			})
+		case backendabi.L1DepositWETHSig:
+			event := backendabi.ERC20MessageEvent{}
+			err := utils.UnpackLog(backendabi.L1WETHGatewayABI, &event, "DepositERC20", vlog)
+			if err != nil {
+				log.Warn("Failed to unpack DepositWETH event", "err", err)
+				return l1CrossMsg, msgHashes, relayedMsgs, err
+			}
+			l1CrossMsg = append(l1CrossMsg, &orm.L1CrossMsg{
+				Height:     vlog.BlockNumber,
+				Sender:     event.From.String(),
+				Target:     event.To.String(),
+				Amount:     event.Amount.String(),
+				Asset:      int(orm.WETH),
+				Layer1Hash: vlog.TxHash.Hex(),
+			})
+		case backendabi.L1DepositERC20Sig:
+			event := backendabi.ERC20MessageEvent{}
+			err := utils.UnpackLog(backendabi.L1StandardERC20GatewayABI, &event, "DepositERC20", vlog)
+			if err != nil {
+				log.Warn("Failed to unpack DepositERC20 event", "err", err)
+				return l1CrossMsg, msgHashes, relayedMsgs, err
+			}
+			l1CrossMsg = append(l1CrossMsg, &orm.L1CrossMsg{
+				Height:      vlog.BlockNumber,
+				Sender:      event.From.String(),
+				Target:      event.To.String(),
+				Amount:      event.Amount.String(),
+				Asset:       int(orm.ERC20),
+				Layer1Hash:  vlog.TxHash.Hex(),
+				Layer1Token: event.L1Token.Hex(),
+				Layer2Token: event.L2Token.Hex(),
+			})
+		case backendabi.L1DepositCustomERC20Sig:
+			event := backendabi.ERC20MessageEvent{}
+			err := utils.UnpackLog(backendabi.L1CustomERC20GatewayABI, &event, "DepositERC20", vlog)
+			if err != nil {
+				log.Warn("Failed to unpack DepositCustomERC20 event", "err", err)
+				return l1CrossMsg, msgHashes, relayedMsgs, err
+			}
+			l1CrossMsg = append(l1CrossMsg, &orm.L1CrossMsg{
+				Height:      vlog.BlockNumber,
+				Sender:      event.From.String(),
+				Target:      event.To.String(),
+				Amount:      event.Amount.String(),
+				Asset:       int(orm.ERC20),
+				Layer1Hash:  vlog.TxHash.Hex(),
+				Layer1Token: event.L1Token.Hex(),
+				Layer2Token: event.L2Token.Hex(),
+			})
+		case backendabi.L1DepositERC721Sig:
+			event := backendabi.ERC721MessageEvent{}
+			err := utils.UnpackLog(backendabi.L1ERC721GatewayABI, &event, "DepositERC721", vlog)
+			if err != nil {
+				log.Warn("Failed to unpack DepositERC721 event", "err", err)
+				return l1CrossMsg, msgHashes, relayedMsgs, err
+			}
+			l1CrossMsg = append(l1CrossMsg, &orm.L1CrossMsg{
+				Height:      vlog.BlockNumber,
+				Sender:      event.From.String(),
+				Target:      event.To.String(),
+				Asset:       int(orm.ERC721),
+				Layer1Hash:  vlog.TxHash.Hex(),
+				Layer1Token: event.L1Token.Hex(),
+				Layer2Token: event.L2Token.Hex(),
+				TokenID:     event.TokenID.Uint64(),
+			})
+		case backendabi.L1DepositERC1155Sig:
+			event := backendabi.ERC1155MessageEvent{}
+			err := utils.UnpackLog(backendabi.L1ERC1155GatewayABI, &event, "DepositERC1155", vlog)
+			if err != nil {
+				log.Warn("Failed to unpack DepositERC1155 event", "err", err)
+				return l1CrossMsg, msgHashes, relayedMsgs, err
+			}
+			l1CrossMsg = append(l1CrossMsg, &orm.L1CrossMsg{
+				Height:      vlog.BlockNumber,
+				Sender:      event.From.String(),
+				Target:      event.To.String(),
+				Asset:       int(orm.ERC1155),
+				Layer1Hash:  vlog.TxHash.Hex(),
+				Layer1Token: event.L1Token.Hex(),
+				Layer2Token: event.L2Token.Hex(),
+				TokenID:     event.TokenID.Uint64(),
+				Amount:      event.Amount.String(),
+			})
+		case backendabi.L1SentMessageEventSignature:
+			event := backendabi.L1SentMessageEvent{}
+			err := utils.UnpackLog(backendabi.L1ScrollMessengerABI, &event, "SentMessage", vlog)
+			if err != nil {
+				log.Warn("Failed to unpack SentMessage event", "err", err)
+				return l1CrossMsg, msgHashes, relayedMsgs, err
+			}
+			msgHash := utils.ComputeMessageHash(event.Sender, event.Target, event.Value, event.MessageNonce, event.Message)
+			msgHashes = append(msgHashes, msgHashWrapper{
+				msgHash: msgHash,
+				txHash:  vlog.TxHash})
+		case backendabi.L1RelayedMessageEventSignature:
+			event := backendabi.L1RelayedMessageEvent{}
+			err := utils.UnpackLog(backendabi.L1ScrollMessengerABI, &event, "RelayedMessage", vlog)
+			if err != nil {
+				log.Warn("Failed to unpack RelayedMessage event", "err", err)
+				return l1CrossMsg, msgHashes, relayedMsgs, err
+			}
+			relayedMsgs = append(relayedMsgs, &orm.RelayedMsg{
+				MsgHash:    event.MessageHash.String(),
+				Height:     vlog.BlockNumber,
+				Layer1Hash: vlog.TxHash.Hex(),
+			})
+
+		}
+
+	}
+	return l1CrossMsg, msgHashes, relayedMsgs, nil
+}
+
+func parseBackendL2EventLogs(logs []types.Log) ([]*orm.L2CrossMsg, []msgHashWrapper, []*orm.RelayedMsg, error) {
+	// Need use contract abi to parse event Log
+	// Can only be tested after we have our contracts set up
+
+	var l2CrossMsg []*orm.L2CrossMsg
+	var relayedMsgs []*orm.RelayedMsg
+	var msgHashes []msgHashWrapper
+	for _, vlog := range logs {
+		switch vlog.Topics[0] {
+		case backendabi.L2WithdrawETHSig:
+			event := backendabi.DepositETH{}
+			err := utils.UnpackLog(backendabi.L2ETHGatewayABI, &event, "WithdrawETH", vlog)
+			if err != nil {
+				log.Warn("Failed to unpack WithdrawETH event", "err", err)
+				return l2CrossMsg, msgHashes, relayedMsgs, err
+			}
+			l2CrossMsg = append(l2CrossMsg, &orm.L2CrossMsg{
+				Height:     vlog.BlockNumber,
+				Sender:     event.From.String(),
+				Target:     event.To.String(),
+				Amount:     event.Amount.String(),
+				Asset:      int(orm.ETH),
+				Layer2Hash: vlog.TxHash.Hex(),
+			})
+		case backendabi.L2WithdrawWETHSig:
+			event := backendabi.ERC20MessageEvent{}
+			err := utils.UnpackLog(backendabi.L2WETHGatewayABI, &event, "WithdrawERC20", vlog)
+			if err != nil {
+				log.Warn("Failed to unpack WithdrawWETH event", "err", err)
+				return l2CrossMsg, msgHashes, relayedMsgs, err
+			}
+			l2CrossMsg = append(l2CrossMsg, &orm.L2CrossMsg{
+				Height:     vlog.BlockNumber,
+				Sender:     event.From.String(),
+				Target:     event.To.String(),
+				Amount:     event.Amount.String(),
+				Asset:      int(orm.WETH),
+				Layer2Hash: vlog.TxHash.Hex(),
+			})
+		case backendabi.L2WithdrawERC20Sig:
+			event := backendabi.ERC20MessageEvent{}
+			err := utils.UnpackLog(backendabi.L2StandardERC20GatewayABI, &event, "WithdrawERC20", vlog)
+			if err != nil {
+				log.Warn("Failed to unpack WithdrawERC20 event", "err", err)
+				return l2CrossMsg, msgHashes, relayedMsgs, err
+			}
+			l2CrossMsg = append(l2CrossMsg, &orm.L2CrossMsg{
+				Height:      vlog.BlockNumber,
+				Sender:      event.From.String(),
+				Target:      event.To.String(),
+				Amount:      event.Amount.String(),
+				Asset:       int(orm.ERC20),
+				Layer2Hash:  vlog.TxHash.Hex(),
+				Layer1Token: event.L1Token.Hex(),
+				Layer2Token: event.L2Token.Hex(),
+			})
+		case backendabi.L2WithdrawCustomERC20Sig:
+			event := backendabi.ERC20MessageEvent{}
+			err := utils.UnpackLog(backendabi.L2CustomERC20GatewayABI, &event, "WithdrawERC20", vlog)
+			if err != nil {
+				log.Warn("Failed to unpack DepositCustomERC20 event", "err", err)
+				return l2CrossMsg, msgHashes, relayedMsgs, err
+			}
+			l2CrossMsg = append(l2CrossMsg, &orm.L2CrossMsg{
+				Height:      vlog.BlockNumber,
+				Sender:      event.From.String(),
+				Target:      event.To.String(),
+				Amount:      event.Amount.String(),
+				Asset:       int(orm.ERC20),
+				Layer2Hash:  vlog.TxHash.Hex(),
+				Layer1Token: event.L1Token.Hex(),
+				Layer2Token: event.L2Token.Hex(),
+			})
+		case backendabi.L2WithdrawERC721Sig:
+			event := backendabi.ERC721MessageEvent{}
+			err := utils.UnpackLog(backendabi.L2ERC721GatewayABI, &event, "WithdrawERC721", vlog)
+			if err != nil {
+				log.Warn("Failed to unpack WithdrawERC721 event", "err", err)
+				return l2CrossMsg, msgHashes, relayedMsgs, err
+			}
+			l2CrossMsg = append(l2CrossMsg, &orm.L2CrossMsg{
+				Height:      vlog.BlockNumber,
+				Sender:      event.From.String(),
+				Target:      event.To.String(),
+				Asset:       int(orm.ERC721),
+				Layer2Hash:  vlog.TxHash.Hex(),
+				Layer1Token: event.L1Token.Hex(),
+				Layer2Token: event.L2Token.Hex(),
+				TokenID:     event.TokenID.Uint64(),
+			})
+		case backendabi.L2WithdrawERC1155Sig:
+			event := backendabi.ERC1155MessageEvent{}
+			err := utils.UnpackLog(backendabi.L2ERC1155GatewayABI, &event, "WithdrawERC1155", vlog)
+			if err != nil {
+				log.Warn("Failed to unpack WithdrawERC1155 event", "err", err)
+				return l2CrossMsg, msgHashes, relayedMsgs, err
+			}
+			l2CrossMsg = append(l2CrossMsg, &orm.L2CrossMsg{
+				Height:      vlog.BlockNumber,
+				Sender:      event.From.String(),
+				Target:      event.To.String(),
+				Asset:       int(orm.ERC1155),
+				Layer2Hash:  vlog.TxHash.Hex(),
+				Layer1Token: event.L1Token.Hex(),
+				Layer2Token: event.L2Token.Hex(),
+				TokenID:     event.TokenID.Uint64(),
+				Amount:      event.Amount.String(),
+			})
+		case backendabi.L2SentMessageEventSignature:
+			event := backendabi.L2SentMessageEvent{}
+			err := utils.UnpackLog(backendabi.L2ScrollMessengerABI, &event, "SentMessage", vlog)
+			if err != nil {
+				log.Warn("Failed to unpack SentMessage event", "err", err)
+				return l2CrossMsg, msgHashes, relayedMsgs, err
+			}
+			msgHash := utils.ComputeMessageHash(event.Sender, event.Target, event.Value, event.MessageNonce, event.Message)
+			msgHashes = append(msgHashes, msgHashWrapper{
+				msgHash: msgHash,
+				txHash:  vlog.TxHash})
+		case backendabi.L2RelayedMessageEventSignature:
+			event := backendabi.L2RelayedMessageEvent{}
+			err := utils.UnpackLog(backendabi.L2ScrollMessengerABI, &event, "RelayedMessage", vlog)
+			if err != nil {
+				log.Warn("Failed to unpack RelayedMessage event", "err", err)
+				return l2CrossMsg, msgHashes, relayedMsgs, err
+			}
+			relayedMsgs = append(relayedMsgs, &orm.RelayedMsg{
+				MsgHash:    event.MessageHash.String(),
+				Height:     vlog.BlockNumber,
+				Layer2Hash: vlog.TxHash.Hex(),
+			})
+
+		}
+
+	}
+	return l2CrossMsg, msgHashes, relayedMsgs, nil
+}
+
+func updateL1CrossMsgMsgHash(ctx context.Context, dbTx *sqlx.Tx, database db.OrmFactory, msgHashes []msgHashWrapper) error {
+	for _, msgHash := range msgHashes {
+		err := database.UpdateL1CrossMsgHashDBTx(ctx, dbTx, msgHash.txHash, msgHash.msgHash)
+		if err != nil {
+			log.Error("updateL1CrossMsgMsgHash: can not update layer1 cross msg MsgHash", "layer1 hash", msgHash.txHash, "err", err)
+			continue
+		}
+	}
+	return nil
+}
+
+func updateL2CrossMsgMsgHash(ctx context.Context, dbTx *sqlx.Tx, database db.OrmFactory, msgHashes []msgHashWrapper) error {
+	for _, msgHash := range msgHashes {
+		err := database.UpdateL2CrossMsgHashDBTx(ctx, dbTx, msgHash.txHash, msgHash.msgHash)
+		if err != nil {
+			log.Error("updateL2CrossMsgMsgHash: can not update layer2 cross msg MsgHash", "layer2 hash", msgHash.txHash, "err", err)
+			continue
+		}
+	}
+	return nil
+}

bridge-history-api/cross_msg/msg_fetcher_test.go

@@ -0,0 +1,64 @@
+package cross_msg_test
+
+import (
+	"bridge-history-api/cross_msg"
+	"crypto/rand"
+	"math/big"
+	"testing"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestMergeIntoList(t *testing.T) {
+	headers, err := generateHeaders(64)
+	assert.NoError(t, err)
+	assert.Equal(t, headers[0].Hash(), headers[1].ParentHash)
+	headers2, err := generateHeaders(18)
+	assert.NoError(t, err)
+	result := cross_msg.MergeAddIntoHeaderList(headers, headers2, 64)
+	assert.Equal(t, 64, len(result))
+	assert.Equal(t, headers2[len(headers2)-1], result[len(result)-1])
+	assert.NotEqual(t, headers[0], result[0])
+}
+
+func generateHeaders(amount int) ([]*types.Header, error) {
+	headers := make([]*types.Header, amount)
+
+	for i := 0; i < amount; i++ {
+		var parentHash common.Hash
+		if i > 0 {
+			parentHash = headers[i-1].Hash()
+		}
+		nonce, err := rand.Int(rand.Reader, big.NewInt(1<<63-1))
+		if err != nil {
+			return nil, err
+		}
+		difficulty := big.NewInt(131072)
+
+		header := &types.Header{
+			ParentHash:  parentHash,
+			UncleHash:   types.EmptyUncleHash,
+			Coinbase:    common.Address{},
+			Root:        common.Hash{},
+			TxHash:      types.EmptyRootHash,
+			ReceiptHash: types.EmptyRootHash,
+			Bloom:       types.Bloom{},
+			Difficulty:  difficulty,
+			Number:      big.NewInt(int64(i)),
+			GasLimit:    5000000,
+			GasUsed:     0,
+			Time:        uint64(i * 15),
+			Extra:       []byte{},
+			MixDigest:   common.Hash{},
+			Nonce:       types.EncodeNonce(uint64(nonce.Uint64())),
+		}
+		headers[i] = header
+	}
+
+	return headers, nil
+}
+
+// TODO: add more test cases
+// func TestReorg(t *testing.T)

bridge-history-api/cross_msg/reorg_handle.go

@@ -0,0 +1,93 @@
+package cross_msg
+
+import (
+	"context"
+
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/ethclient"
+	"github.com/ethereum/go-ethereum/log"
+
+	"bridge-history-api/db"
+)
+
+type ReorgHandling func(ctx context.Context, reorgHeight int64, db db.OrmFactory)
+
+func reverseArray(arr []*types.Header) []*types.Header {
+	for i := 0; i < len(arr)/2; i++ {
+		j := len(arr) - i - 1
+		arr[i], arr[j] = arr[j], arr[i]
+	}
+	return arr
+}
+
+func IsParentAndChild(parentHeader *types.Header, header *types.Header) bool {
+	return header.ParentHash == parentHeader.Hash()
+}
+
+func MergeAddIntoHeaderList(baseArr, extraArr []*types.Header, maxLength int) []*types.Header {
+	mergedArr := append(baseArr, extraArr...)
+	if len(mergedArr) <= maxLength {
+		return mergedArr
+	}
+
+	startIndex := len(mergedArr) - maxLength
+	return mergedArr[startIndex:]
+}
+
+func BackwardFindReorgBlock(ctx context.Context, headers []*types.Header, client *ethclient.Client, header *types.Header) (int, bool, []*types.Header) {
+	maxStep := len(headers)
+	backwardHeaderList := []*types.Header{header}
+	for iterRound := 0; iterRound < maxStep; iterRound++ {
+		header, err := client.HeaderByHash(ctx, header.ParentHash)
+		if err != nil {
+			log.Error("BackwardFindReorgBlock failed", "error", err)
+			return -1, false, nil
+		}
+		backwardHeaderList = append(backwardHeaderList, header)
+		for j := len(headers) - 1; j >= 0; j-- {
+			if IsParentAndChild(headers[j], header) {
+				backwardHeaderList = reverseArray(backwardHeaderList)
+				return j, true, backwardHeaderList
+			}
+		}
+	}
+	return -1, false, nil
+}
+
+func L1ReorgHandling(ctx context.Context, reorgHeight int64, db db.OrmFactory) {
+	dbTx, err := db.Beginx()
+	if err != nil {
+		log.Crit("begin db tx failed", "err", err)
+	}
+	err = db.DeleteL1CrossMsgAfterHeightDBTx(dbTx, reorgHeight)
+	if err != nil {
+		log.Crit("delete l1 cross msg from height", "height", reorgHeight, "err", err)
+	}
+	err = db.DeleteL1RelayedHashFromHeightDBTx(dbTx, reorgHeight)
+	if err != nil {
+		log.Crit("delete l1 relayed hash from height", "height", reorgHeight, "err", err)
+	}
+	err = dbTx.Commit()
+	if err != nil {
+		log.Crit("commit tx failed", "err", err)
+	}
+}
+
+func L2ReorgHandling(ctx context.Context, reorgHeight int64, db db.OrmFactory) {
+	dbTx, err := db.Beginx()
+	if err != nil {
+		log.Crit("begin db tx failed", "err", err)
+	}
+	err = db.DeleteL2CrossMsgFromHeightDBTx(dbTx, reorgHeight)
+	if err != nil {
+		log.Crit("delete l2 cross msg from height", "height", reorgHeight, "err", err)
+	}
+	err = db.DeleteL2RelayedHashFromHeightDBTx(dbTx, reorgHeight)
+	if err != nil {
+		log.Crit("delete l2 relayed hash from height", "height", reorgHeight, "err", err)
+	}
+	err = dbTx.Commit()
+	if err != nil {
+		log.Crit("commit tx failed", "err", err)
+	}
+}

bridge-history-api/db/migrate/migrate.go

@@ -0,0 +1,61 @@
+package migrate
+
+import (
+	"database/sql"
+	"embed"
+	"os"
+	"strconv"
+
+	"github.com/pressly/goose/v3"
+)
+
+//go:embed migrations/*.sql
+var embedMigrations embed.FS
+
+// MigrationsDir migration dir
+const MigrationsDir string = "migrations"
+
+func init() {
+	goose.SetBaseFS(embedMigrations)
+	goose.SetSequential(true)
+	goose.SetTableName("bridge_history_migrations")
+
+	verbose, _ := strconv.ParseBool(os.Getenv("LOG_SQL_MIGRATIONS"))
+	goose.SetVerbose(verbose)
+}
+
+// Migrate migrate db
+func Migrate(db *sql.DB) error {
+	return goose.Up(db, MigrationsDir, goose.WithAllowMissing())
+}
+
+// Rollback rollback to the given version
+func Rollback(db *sql.DB, version *int64) error {
+	if version != nil {
+		return goose.DownTo(db, MigrationsDir, *version)
+	}
+	return goose.Down(db, MigrationsDir)
+}
+
+// ResetDB clean and migrate db.
+func ResetDB(db *sql.DB) error {
+	if err := Rollback(db, new(int64)); err != nil {
+		return err
+	}
+	return Migrate(db)
+}
+
+// Current get current version
+func Current(db *sql.DB) (int64, error) {
+	return goose.GetDBVersion(db)
+}
+
+// Status is normal or not
+func Status(db *sql.DB) error {
+	return goose.Version(db, MigrationsDir)
+}
+
+// Create a new migration folder
+func Create(db *sql.DB, name, migrationType string) error {
+	return goose.Create(db, MigrationsDir, name, migrationType)
+}

bridge-history-api/db/migrate/migrations/00001_layer1_cross_msg.sql

@@ -0,0 +1,47 @@
+-- +goose Up
+-- +goose StatementBegin
+create table l1_cross_message
+(
+    msg_hash     VARCHAR DEFAULT '',
+    height       BIGINT  NOT NULL,
+    sender       VARCHAR NOT NULL,
+    target       VARCHAR NOT NULL,
+    amount       VARCHAR NOT NULL,
+    layer1_hash  VARCHAR NOT NULL,
+    layer2_hash  VARCHAR DEFAULT '',
+    layer1_token VARCHAR DEFAULT '',
+    layer2_token VARCHAR DEFAULT '',
+    token_id     BIGINT DEFAULT 0,
+    asset        SMALLINT  DEFAULT 1,
+    created_time TIMESTAMP(0) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_time TIMESTAMP(0) NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+comment
+on column l1_cross_message.asset is 'ETH, ERC20, ERC721, ERC1155, WETH';
+
+create unique index l1_cross_message_hash_uindex
+on l1_cross_message (layer1_hash);
+
+create index l1_cross_message_height_index
+    on l1_cross_message (height);
+
+CREATE OR REPLACE FUNCTION update_timestamp()
+RETURNS TRIGGER AS $$
+BEGIN
+   NEW.updated_time = CURRENT_TIMESTAMP;
+   RETURN NEW;
+END;
+$$ language 'plpgsql';
+
+CREATE TRIGGER update_timestamp BEFORE UPDATE
+ON l1_cross_message FOR EACH ROW EXECUTE PROCEDURE
+update_timestamp();
+
+
+-- +goose StatementEnd
+
+-- +goose Down
+-- +goose StatementBegin
+drop table if exists l1_cross_message;
+-- +goose StatementEnd

bridge-history-api/db/migrate/migrations/00002_layer2_cross_msg.sql

@@ -0,0 +1,46 @@
+-- +goose Up
+-- +goose StatementBegin
+create table l2_cross_message
+(
+    msg_hash     VARCHAR DEFAULT '',
+    height       BIGINT  NOT NULL,
+    sender       VARCHAR NOT NULL,
+    target       VARCHAR NOT NULL,
+    amount       VARCHAR NOT NULL,
+    layer1_hash  VARCHAR DEFAULT '',
+    layer2_hash  VARCHAR NOT NULL,
+    layer1_token VARCHAR DEFAULT '',
+    layer2_token VARCHAR DEFAULT '',
+    token_id     BIGINT DEFAULT 0,
+    asset        SMALLINT  DEFAULT 1,
+    created_time TIMESTAMP(0) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_time TIMESTAMP(0) NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+comment
+on column l2_cross_message.asset is 'ETH, ERC20, ERC721, ERC1155, WETH';
+
+create unique index l2_cross_message_hash_uindex
+on l2_cross_message (layer2_hash);
+
+create index l2_cross_message_height_index
+    on l2_cross_message (height);
+
+CREATE OR REPLACE FUNCTION update_timestamp()
+RETURNS TRIGGER AS $$
+BEGIN
+   NEW.updated_time = CURRENT_TIMESTAMP;
+   RETURN NEW;
+END;
+$$ language 'plpgsql';
+
+CREATE TRIGGER update_timestamp BEFORE UPDATE
+ON l2_cross_message FOR EACH ROW EXECUTE PROCEDURE
+update_timestamp();
+
+
+-- +goose StatementEnd
+
+-- +goose Down
+-- +goose StatementBegin
+drop table if exists l2_cross_message;
+-- +goose StatementEnd

bridge-history-api/db/migrate/migrations/00003_relayed_msg.sql

@@ -0,0 +1,34 @@
+-- +goose Up
+-- +goose StatementBegin
+create table relayed_msg
+(
+    msg_hash     VARCHAR NOT NULL,
+    height       BIGINT NOT NULL,
+    layer1_hash  VARCHAR DEFAULT '',
+    layer2_hash  VARCHAR DEFAULT '',
+    created_time TIMESTAMP(0) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_time TIMESTAMP(0) NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+create unique index relayed_msg_hash_uindex
+on relayed_msg (msg_hash);
+
+CREATE OR REPLACE FUNCTION update_timestamp()
+RETURNS TRIGGER AS $$
+BEGIN
+   NEW.updated_time = CURRENT_TIMESTAMP;
+   RETURN NEW;
+END;
+$$ language 'plpgsql';
+
+CREATE TRIGGER update_timestamp BEFORE UPDATE
+ON relayed_msg FOR EACH ROW EXECUTE PROCEDURE
+update_timestamp();
+
+
+-- +goose StatementEnd
+
+-- +goose Down
+-- +goose StatementBegin
+drop table if exists relayed_msg;
+-- +goose StatementEnd

bridge-history-api/db/orm/interface.go

@@ -0,0 +1,111 @@
+package orm
+
+import (
+	"context"
+	"time"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/jmoiron/sqlx"
+)
+
+type AssetType int
+
+func (a AssetType) String() string {
+	switch a {
+	case ETH:
+		return "ETH"
+	case ERC20:
+		return "ERC20"
+	case ERC1155:
+		return "ERC1155"
+	case ERC721:
+		return "ERC721"
+	case WETH:
+		return "WETH"
+	}
+	return "Unknown Asset Type"
+}
+
+const (
+	ETH AssetType = iota
+	ERC20
+	ERC721
+	ERC1155
+	WETH
+)
+
+// L1CrossMsg represents a cross message from layer 1 to layer 2
+type L1CrossMsg struct {
+	MsgHash     string     `json:"msg_hash" db:"msg_hash"`
+	Height      uint64     `json:"height" db:"height"`
+	Sender      string     `json:"sender" db:"sender"`
+	Target      string     `json:"target" db:"target"`
+	Amount      string     `json:"amount" db:"amount"`
+	Layer1Hash  string     `json:"layer1_hash" db:"layer1_hash"`
+	Layer2Hash  string     `json:"layer2_hash" db:"layer2_hash"`
+	Layer1Token string     `json:"layer1_token" db:"layer1_token"`
+	Layer2Token string     `json:"layer2_token" db:"layer2_token"`
+	TokenID     uint64     `json:"token_id" db:"token_id"`
+	CreatedTime *time.Time `json:"created_time" db:"created_time"`
+	Asset       int        `json:"asset" db:"asset"`
+	UpdatedTime *time.Time `json:"updated_time" db:"updated_time"`
+}
+
+// L2CrossMsg represents a cross message from layer 2 to layer 1
+type L2CrossMsg struct {
+	MsgHash     string     `json:"msg_hash" db:"msg_hash"`
+	Height      uint64     `json:"height" db:"height"`
+	Sender      string     `json:"sender" db:"sender"`
+	Target      string     `json:"target" db:"target"`
+	Amount      string     `json:"value" db:"amount"`
+	Layer1Hash  string     `json:"layer1_hash" db:"layer1_hash"`
+	Layer2Hash  string     `json:"layer2_hash" db:"layer2_hash"`
+	Layer1Token string     `json:"layer1_token" db:"layer1_token"`
+	Layer2Token string     `json:"layer2_token" db:"layer2_token"`
+	TokenID     uint64     `json:"token_id" db:"token_id"`
+	CreatedTime *time.Time `json:"created_time" db:"created_time"`
+	Asset       int        `json:"asset" db:"asset"`
+	UpdatedTime *time.Time `json:"updated_time" db:"updated_time"`
+}
+
+type RelayedMsg struct {
+	MsgHash    string `json:"msg_hash" db:"msg_hash"`
+	Height     uint64 `json:"height" db:"height"`
+	Layer1Hash string `json:"layer1_hash" db:"layer1_hash"`
+	Layer2Hash string `json:"layer2_hash" db:"layer2_hash"`
+}
+
+// L1CrossMsgOrm provides operations on l1_cross_message table
+type L1CrossMsgOrm interface {
+	GetL1CrossMsgByHash(l1Hash common.Hash) (*L1CrossMsg, error)
+	GetL1CrossMsgsByAddress(sender common.Address) ([]*L1CrossMsg, error)
+	BatchInsertL1CrossMsgDBTx(dbTx *sqlx.Tx, messages []*L1CrossMsg) error
+	// UpdateL1CrossMsgHash invoked when SentMessage event is received
+	UpdateL1CrossMsgHashDBTx(ctx context.Context, dbTx *sqlx.Tx, l1Hash, msgHash common.Hash) error
+	UpdateL1CrossMsgHash(ctx context.Context, l1Hash, msgHash common.Hash) error
+	GetLatestL1ProcessedHeight() (int64, error)
+	DeleteL1CrossMsgAfterHeightDBTx(dbTx *sqlx.Tx, height int64) error
+	GetL1CrossMsgsByAddressWithOffset(sender common.Address, offset int64, limit int64) ([]*L1CrossMsg, error)
+}
+
+// L2CrossMsgOrm provides operations on l2_cross_message table
+type L2CrossMsgOrm interface {
+	GetL2CrossMsgByHash(l2Hash common.Hash) (*L2CrossMsg, error)
+	GetL2CrossMsgByAddress(sender common.Address) ([]*L2CrossMsg, error)
+	BatchInsertL2CrossMsgDBTx(dbTx *sqlx.Tx, messages []*L2CrossMsg) error
+	// UpdateL2CrossMsgHash invoked when SentMessage event is received
+	UpdateL2CrossMsgHashDBTx(ctx context.Context, dbTx *sqlx.Tx, l2Hash, msgHash common.Hash) error
+	UpdateL2CrossMsgHash(ctx context.Context, l2Hash, msgHash common.Hash) error
+	GetLatestL2ProcessedHeight() (int64, error)
+	GetL2CrossMsgsByAddressWithOffset(sender common.Address, offset int64, limit int64) ([]*L2CrossMsg, error)
+	DeleteL2CrossMsgFromHeightDBTx(dbTx *sqlx.Tx, height int64) error
+}
+
+type RelayedMsgOrm interface {
+	BatchInsertRelayedMsgDBTx(dbTx *sqlx.Tx, messages []*RelayedMsg) error
+	GetRelayedMsgByHash(msg_hash string) (*RelayedMsg, error)
+	GetLatestRelayedHeightOnL1() (int64, error)
+	GetLatestRelayedHeightFromL2() (int64, error)
+	DeleteL1RelayedHashFromHeightDBTx(dbTx *sqlx.Tx, height int64) error
+	DeleteL2RelayedHashFromHeightDBTx(dbTx *sqlx.Tx, height int64) error
+}

bridge-history-api/db/orm/l1_cross_msg.go

@@ -0,0 +1,137 @@
+package orm
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/log"
+	"github.com/jmoiron/sqlx"
+)
+
+type l1CrossMsgOrm struct {
+	db *sqlx.DB
+}
+
+// NewL1CrossMsgOrm create an NewL1CrossMsgOrm instance
+func NewL1CrossMsgOrm(db *sqlx.DB) L1CrossMsgOrm {
+	return &l1CrossMsgOrm{db: db}
+}
+
+func (l *l1CrossMsgOrm) GetL1CrossMsgByHash(l1Hash common.Hash) (*L1CrossMsg, error) {
+	result := &L1CrossMsg{}
+	row := l.db.QueryRowx(`SELECT * FROM l1_cross_message WHERE layer1_hash = $1;`, l1Hash.String())
+	if err := row.StructScan(result); err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return result, nil
+}
+
+func (l *l1CrossMsgOrm) GetL1CrossMsgsByAddressWithOffset(sender common.Address, offset int64, limit int64) ([]*L1CrossMsg, error) {
+	para := sender.String()
+	var results []*L1CrossMsg
+	rows, err := l.db.Queryx(`SELECT * FROM l1_cross_message WHERE sender = $1 ORDER BY height DESC LIMIT $2 OFFSET $3;`, para, limit, offset)
+	for rows.Next() {
+		msg := &L1CrossMsg{}
+		if err = rows.StructScan(msg); err != nil {
+			break
+		}
+		results = append(results, msg)
+	}
+	if len(results) == 0 && errors.Is(err, sql.ErrNoRows) {
+	} else if err != nil {
+		return nil, err
+	}
+	return results, nil
+}
+
+// GetL1CrossMsgsByAddress returns all layer1 cross messages under given address
+// Warning: return empty slice if no data found
+func (l *l1CrossMsgOrm) GetL1CrossMsgsByAddress(sender common.Address) ([]*L1CrossMsg, error) {
+	para := sender.String()
+	var results []*L1CrossMsg
+	rows, err := l.db.Queryx(`SELECT * FROM l1_cross_message WHERE sender = $1;`, para)
+
+	for rows.Next() {
+		msg := &L1CrossMsg{}
+		if err = rows.StructScan(msg); err != nil {
+			break
+		}
+		results = append(results, msg)
+	}
+	if len(results) == 0 && errors.Is(err, sql.ErrNoRows) {
+	} else if err != nil {
+		return nil, err
+	}
+	return results, nil
+}
+
+func (l *l1CrossMsgOrm) BatchInsertL1CrossMsgDBTx(dbTx *sqlx.Tx, messages []*L1CrossMsg) error {
+	if len(messages) == 0 {
+		return nil
+	}
+	var err error
+	messageMaps := make([]map[string]interface{}, len(messages))
+	for i, msg := range messages {
+		messageMaps[i] = map[string]interface{}{
+			"height":       msg.Height,
+			"sender":       msg.Sender,
+			"target":       msg.Target,
+			"amount":       msg.Amount,
+			"asset":        msg.Asset,
+			"layer1_hash":  msg.Layer1Hash,
+			"layer1_token": msg.Layer1Token,
+			"layer2_token": msg.Layer2Token,
+			"token_id":     msg.TokenID,
+		}
+
+		_, err := dbTx.NamedExec(`insert into l1_cross_message(height, sender, target, asset, layer1_hash, layer1_token, layer2_token, token_id, amount) values(:height, :sender, :target, :asset, :layer1_hash, :layer1_token, :layer2_token, :token_id, :amount);`, messageMaps[i])
+		if err != nil {
+			log.Error("BatchInsertL1CrossMsgDBTx: failed to insert l1 cross msgs", "l1hashes", msg.Layer1Hash, "heights", msg.Height, "err", err)
+			break
+		}
+	}
+	return err
+}
+
+func (l *l1CrossMsgOrm) UpdateL1CrossMsgHashDBTx(ctx context.Context, dbTx *sqlx.Tx, l1Hash, msgHash common.Hash) error {
+	if _, err := dbTx.ExecContext(ctx, l.db.Rebind("update public.l1_cross_message set msg_hash = ? where layer1_hash = ?;"), msgHash.String(), l1Hash.String()); err != nil {
+		return err
+	}
+	return nil
+
+}
+
+func (l *l1CrossMsgOrm) UpdateL1CrossMsgHash(ctx context.Context, l1Hash, msgHash common.Hash) error {
+	if _, err := l.db.ExecContext(ctx, l.db.Rebind("update public.l1_cross_message set msg_hash = ? where layer1_hash = ?;"), msgHash.String(), l1Hash.String()); err != nil {
+		return err
+	}
+	return nil
+
+}
+
+func (l *l1CrossMsgOrm) GetLatestL1ProcessedHeight() (int64, error) {
+	row := l.db.QueryRowx(`SELECT MAX(height) FROM l1_cross_message;`)
+	var result sql.NullInt64
+	if err := row.Scan(&result); err != nil {
+		if err == sql.ErrNoRows || !result.Valid {
+			return -1, nil
+		}
+		return 0, err
+	}
+	if result.Valid {
+		return result.Int64, nil
+	}
+	return 0, nil
+}
+
+func (l *l1CrossMsgOrm) DeleteL1CrossMsgAfterHeightDBTx(dbTx *sqlx.Tx, height int64) error {
+	if _, err := l.db.Exec(`DELETE FROM l1_cross_message WHERE height > $1;`, height); err != nil {
+		return err
+	}
+	return nil
+}

bridge-history-api/db/orm/l2_cross_msg.go

@@ -0,0 +1,141 @@
+package orm
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/log"
+	"github.com/jmoiron/sqlx"
+)
+
+type l2CrossMsgOrm struct {
+	db *sqlx.DB
+}
+
+// NewL2CrossMsgOrm create an NewL2CrossMsgOrm instance
+func NewL2CrossMsgOrm(db *sqlx.DB) L2CrossMsgOrm {
+	return &l2CrossMsgOrm{db: db}
+}
+
+func (l *l2CrossMsgOrm) GetL2CrossMsgByHash(l2Hash common.Hash) (*L2CrossMsg, error) {
+	result := &L2CrossMsg{}
+	row := l.db.QueryRowx(`SELECT * FROM l2_cross_message WHERE layer2_hash = $1;`, l2Hash.String())
+	if err := row.StructScan(result); err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return result, nil
+}
+
+func (l *l2CrossMsgOrm) GetL2CrossMsgsByAddressWithOffset(sender common.Address, offset int64, limit int64) ([]*L2CrossMsg, error) {
+	para := sender.String()
+	var results []*L2CrossMsg
+	rows, err := l.db.Queryx(`SELECT * FROM l2_cross_message WHERE sender = $1 ORDER BY height DESC LIMIT $2 OFFSET $3;`, para, limit, offset)
+	for rows.Next() {
+		msg := &L2CrossMsg{}
+		if err = rows.StructScan(msg); err != nil {
+			break
+		}
+		results = append(results, msg)
+	}
+	if len(results) == 0 && errors.Is(err, sql.ErrNoRows) {
+	} else if err != nil {
+		return nil, err
+	}
+	return results, nil
+}
+
+// GetL2CrossMsgsByAddress returns all layer2 cross messages under given address
+// Warning: return empty slice if no data found
+func (l *l2CrossMsgOrm) GetL2CrossMsgByAddress(sender common.Address) ([]*L2CrossMsg, error) {
+	para := sender.String()
+	var results []*L2CrossMsg
+	rows, err := l.db.Queryx(`SELECT * FROM l2_cross_message WHERE sender = $1;`, para)
+
+	for rows.Next() {
+		msg := &L2CrossMsg{}
+		if err = rows.StructScan(msg); err != nil {
+			break
+		}
+		results = append(results, msg)
+	}
+	if len(results) == 0 && errors.Is(err, sql.ErrNoRows) {
+		// log.Warn("no unprocessed layer1 messages in db", "err", err)
+	} else if err != nil {
+		return nil, err
+	}
+	return results, nil
+
+}
+
+func (l *l2CrossMsgOrm) DeleteL2CrossMsgFromHeightDBTx(dbTx *sqlx.Tx, height int64) error {
+	_, err := dbTx.Exec(`delete from l2_cross_message where height > $1;`, height)
+	if err != nil {
+		log.Error("DeleteL1CrossMsgAfterHeightDBTx: failed to delete", "height", height, "err", err)
+		return err
+	}
+	return nil
+}
+
+func (l *l2CrossMsgOrm) BatchInsertL2CrossMsgDBTx(dbTx *sqlx.Tx, messages []*L2CrossMsg) error {
+	if len(messages) == 0 {
+		return nil
+	}
+
+	var err error
+	messageMaps := make([]map[string]interface{}, len(messages))
+	for i, msg := range messages {
+
+		messageMaps[i] = map[string]interface{}{
+			"height":       msg.Height,
+			"sender":       msg.Sender,
+			"target":       msg.Target,
+			"asset":        msg.Asset,
+			"layer2_hash":  msg.Layer2Hash,
+			"layer1_token": msg.Layer1Token,
+			"layer2_token": msg.Layer2Token,
+			"token_id":     msg.TokenID,
+			"amount":       msg.Amount,
+		}
+
+		_, err := dbTx.NamedExec(`insert into l2_cross_message(height, sender, target, asset, layer2_hash, layer1_token, layer2_token, token_id, amount) values(:height, :sender, :target, :asset, :layer2_hash, :layer1_token, :layer2_token, :token_id, :amount);`, messageMaps[i])
+		if err != nil {
+			log.Error("BatchInsertL2CrossMsgDBTx: failed to insert l2 cross msgs", "layer2hash", msg.Layer2Hash, "heights", msg.Height, "err", err)
+			break
+		}
+	}
+	return err
+}
+
+func (l *l2CrossMsgOrm) UpdateL2CrossMsgHashDBTx(ctx context.Context, dbTx *sqlx.Tx, l2Hash, msgHash common.Hash) error {
+	if _, err := dbTx.ExecContext(ctx, l.db.Rebind("update public.l2_cross_message set msg_hash = ? where layer2_hash = ?;"), msgHash.String(), l2Hash.String()); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (l *l2CrossMsgOrm) UpdateL2CrossMsgHash(ctx context.Context, l2Hash, msgHash common.Hash) error {
+	if _, err := l.db.ExecContext(ctx, l.db.Rebind("update public.l2_cross_message set msg_hash = ? where layer2_hash = ?;"), msgHash.String(), l2Hash.String()); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (l *l2CrossMsgOrm) GetLatestL2ProcessedHeight() (int64, error) {
+	row := l.db.QueryRowx(`SELECT MAX(height) FROM l2_cross_message WHERE layer2_hash IS NOT NULL;`)
+	var result sql.NullInt64
+	if err := row.Scan(&result); err != nil {
+		if err == sql.ErrNoRows || !result.Valid {
+			return -1, nil
+		}
+		return 0, err
+	}
+	if result.Valid {
+		return result.Int64, nil
+	}
+	return 0, nil
+}

bridge-history-api/db/orm/relayed_msg.go

@@ -0,0 +1,94 @@
+package orm
+
+import (
+	"database/sql"
+	"errors"
+	"strings"
+
+	"github.com/ethereum/go-ethereum/log"
+	"github.com/jmoiron/sqlx"
+)
+
+type relayedMsgOrm struct {
+	db *sqlx.DB
+}
+
+// NewRelayedMsgOrm create an NewRelayedMsgOrm instance
+func NewRelayedMsgOrm(db *sqlx.DB) RelayedMsgOrm {
+	return &relayedMsgOrm{db: db}
+}
+
+func (l *relayedMsgOrm) BatchInsertRelayedMsgDBTx(dbTx *sqlx.Tx, messages []*RelayedMsg) error {
+	if len(messages) == 0 {
+		return nil
+	}
+	var err error
+	messageMaps := make([]map[string]interface{}, len(messages))
+	for i, msg := range messages {
+		messageMaps[i] = map[string]interface{}{
+			"msg_hash":    msg.MsgHash,
+			"height":      msg.Height,
+			"layer1_hash": msg.Layer1Hash,
+			"layer2_hash": msg.Layer2Hash,
+		}
+
+		_, err := dbTx.NamedExec(`insert into relayed_msg(msg_hash, height, layer1_hash, layer2_hash) values(:msg_hash, :height, :layer1_hash, :layer2_hash);`, messageMaps[i])
+		if err != nil && !strings.Contains(err.Error(), "pq: duplicate key value violates unique constraint \"relayed_msg_hash_uindex") {
+			log.Error("BatchInsertRelayedMsgDBTx: failed to insert l1 cross msgs", "msg_Hashe", msg.MsgHash, "height", msg.Height, "err", err)
+			break
+		}
+	}
+	return err
+}
+
+func (l *relayedMsgOrm) GetRelayedMsgByHash(msg_hash string) (*RelayedMsg, error) {
+	result := &RelayedMsg{}
+	row := l.db.QueryRowx(`SELECT msg_hash, height, layer1_hash, layer2_hash FROM relayed_msg WHERE msg_hash = $1;`, msg_hash)
+	if err := row.StructScan(result); err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return result, nil
+}
+
+func (l *relayedMsgOrm) GetLatestRelayedHeightOnL1() (int64, error) {
+	row := l.db.QueryRow(`SELECT MAX(height) FROM relayed_msg WHERE layer1_hash != '';`)
+	var result sql.NullInt64
+	if err := row.Scan(&result); err != nil {
+		if err == sql.ErrNoRows || !result.Valid {
+			return -1, nil
+		}
+		return 0, err
+	}
+	if result.Valid {
+		return result.Int64, nil
+	}
+	return 0, nil
+}
+
+func (l *relayedMsgOrm) GetLatestRelayedHeightFromL2() (int64, error) {
+	row := l.db.QueryRow(`SELECT MAX(height) FROM relayed_msg WHERE layer2_hash != '';`)
+	var result sql.NullInt64
+	if err := row.Scan(&result); err != nil {
+		if err == sql.ErrNoRows || !result.Valid {
+			return -1, nil
+		}
+		return 0, err
+	}
+	if result.Valid {
+		return result.Int64, nil
+	}
+	return 0, nil
+}
+
+func (l *relayedMsgOrm) DeleteL1RelayedHashFromHeightDBTx(dbTx *sqlx.Tx, height int64) error {
+	_, err := dbTx.Exec(`DELETE FROM relayed_msg WHERE height > $1 AND layer1_hash != '';`, height)
+	return err
+}
+
+func (l *relayedMsgOrm) DeleteL2RelayedHashFromHeightDBTx(dbTx *sqlx.Tx, height int64) error {
+	_, err := dbTx.Exec(`DELETE FROM relayed_msg WHERE height > $1 AND layer2_hash != '';`, height)
+	return err
+}

bridge-history-api/db/orm_factory.go

@@ -0,0 +1,56 @@
+package db
+
+import (
+	"github.com/jmoiron/sqlx"
+	_ "github.com/lib/pq" //nolint:golint
+
+	"bridge-history-api/config"
+	"bridge-history-api/db/orm"
+)
+
+// OrmFactory include all ormFactory interface
+type OrmFactory interface {
+	orm.L1CrossMsgOrm
+	orm.L2CrossMsgOrm
+	orm.RelayedMsgOrm
+	GetDB() *sqlx.DB
+	Beginx() (*sqlx.Tx, error)
+	Close() error
+}
+
+type ormFactory struct {
+	orm.L1CrossMsgOrm
+	orm.L2CrossMsgOrm
+	orm.RelayedMsgOrm
+	*sqlx.DB
+}
+
+// NewOrmFactory create an ormFactory factory include all ormFactory interface
+func NewOrmFactory(cfg *config.Config) (OrmFactory, error) {
+	// Initialize sql/sqlx
+	db, err := sqlx.Open(cfg.DB.DriverName, cfg.DB.DSN)
+	if err != nil {
+		return nil, err
+	}
+
+	db.SetMaxOpenConns(cfg.DB.MaxOpenNum)
+	db.SetMaxIdleConns(cfg.DB.MaxIdleNum)
+	if err = db.Ping(); err != nil {
+		return nil, err
+	}
+
+	return &ormFactory{
+		L1CrossMsgOrm: orm.NewL1CrossMsgOrm(db),
+		L2CrossMsgOrm: orm.NewL2CrossMsgOrm(db),
+		RelayedMsgOrm: orm.NewRelayedMsgOrm(db),
+		DB:            db,
+	}, nil
+}
+
+func (o *ormFactory) GetDB() *sqlx.DB {
+	return o.DB
+}
+
+func (o *ormFactory) Beginx() (*sqlx.Tx, error) {
+	return o.DB.Beginx()
+}

bridge-history-api/go.mod

@@ -0,0 +1,145 @@
+module bridge-history-api
+
+go 1.20
+
+require (
+	github.com/ethereum/go-ethereum v1.11.4
+	github.com/jmoiron/sqlx v1.3.5
+	github.com/kataras/iris/v12 v12.2.0
+	github.com/lib/pq v1.10.7
+	github.com/mattn/go-colorable v0.1.13
+	github.com/mattn/go-isatty v0.0.18
+	github.com/modern-go/reflect2 v1.0.2
+	github.com/pressly/goose/v3 v3.7.0
+	github.com/stretchr/testify v1.8.2
+	github.com/urfave/cli/v2 v2.17.2-0.20221006022127-8f469abc00aa
+)
+
+require (
+	github.com/BurntSushi/toml v1.2.1 // indirect
+	github.com/CloudyKit/fastprinter v0.0.0-20200109182630-33d98a066a53 // indirect
+	github.com/CloudyKit/jet/v6 v6.2.0 // indirect
+	github.com/DataDog/zstd v1.5.2 // indirect
+	github.com/Joker/jade v1.1.3 // indirect
+	github.com/Shopify/goreferrer v0.0.0-20220729165902-8cddb4f5de06 // indirect
+	github.com/VictoriaMetrics/fastcache v1.6.0 // indirect
+	github.com/andybalholm/brotli v1.0.5 // indirect
+	github.com/aymerick/douceur v0.2.0 // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/blang/semver/v4 v4.0.0 // indirect
+	github.com/btcsuite/btcd v0.20.1-beta // indirect
+	github.com/btcsuite/btcd/btcec/v2 v2.2.0 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/cockroachdb/errors v1.9.1 // indirect
+	github.com/cockroachdb/logtags v0.0.0-20230118201751-21c54148d20b // indirect
+	github.com/cockroachdb/pebble v0.0.0-20230209160836-829675f94811 // indirect
+	github.com/cockroachdb/redact v1.1.3 // 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/v2 v2.1.0 // indirect
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1 // indirect
+	github.com/deepmap/oapi-codegen v1.8.2 // indirect
+	github.com/docker/docker v20.10.21+incompatible // indirect
+	github.com/edsrzf/mmap-go v1.0.0 // indirect
+	github.com/eknkc/amber v0.0.0-20171010120322-cdade1c07385 // indirect
+	github.com/fatih/structs v1.1.0 // indirect
+	github.com/fjl/memsize v0.0.0-20190710130421-bcb5799ab5e5 // indirect
+	github.com/flosch/pongo2/v4 v4.0.2 // indirect
+	github.com/fsnotify/fsnotify v1.6.0 // indirect
+	github.com/gballet/go-libpcsclite v0.0.0-20190607065134-2772fd86a8ff // indirect
+	github.com/getsentry/sentry-go v0.18.0 // indirect
+	github.com/go-ole/go-ole v1.2.6 // indirect
+	github.com/go-sql-driver/mysql v1.7.0 // indirect
+	github.com/go-stack/stack v1.8.1 // indirect
+	github.com/gobwas/httphead v0.1.0 // indirect
+	github.com/gobwas/pool v0.2.1 // indirect
+	github.com/gobwas/ws v1.1.0 // indirect
+	github.com/gofrs/flock v0.8.1 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang-jwt/jwt/v4 v4.3.0 // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/golang/snappy v0.0.4 // indirect
+	github.com/google/uuid v1.3.0 // indirect
+	github.com/gorilla/css v1.0.0 // indirect
+	github.com/gorilla/websocket v1.5.0 // indirect
+	github.com/graph-gophers/graphql-go v1.3.0 // indirect
+	github.com/hashicorp/go-bexpr v0.1.10 // indirect
+	github.com/holiman/bloomfilter/v2 v2.0.3 // indirect
+	github.com/holiman/uint256 v1.2.0 // indirect
+	github.com/huin/goupnp v1.0.3 // indirect
+	github.com/influxdata/influxdb v1.8.3 // indirect
+	github.com/influxdata/influxdb-client-go/v2 v2.4.0 // indirect
+	github.com/influxdata/line-protocol v0.0.0-20210311194329-9aa0e372d097 // indirect
+	github.com/iris-contrib/go.uuid v2.0.0+incompatible // indirect
+	github.com/iris-contrib/schema v0.0.6 // indirect
+	github.com/jackpal/go-nat-pmp v1.0.2 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
+	github.com/kataras/blocks v0.0.7 // indirect
+	github.com/kataras/golog v0.1.8 // indirect
+	github.com/kataras/neffos v0.0.21 // indirect
+	github.com/kataras/pio v0.0.11 // indirect
+	github.com/kataras/sitemap v0.0.6 // indirect
+	github.com/kataras/tunnel v0.0.4 // indirect
+	github.com/klauspost/compress v1.16.0 // indirect
+	github.com/kr/pretty v0.3.1 // indirect
+	github.com/kr/text v0.2.0 // indirect
+	github.com/mailgun/raymond/v2 v2.0.48 // indirect
+	github.com/mailru/easyjson v0.7.7 // indirect
+	github.com/mattn/go-runewidth v0.0.14 // indirect
+	github.com/mattn/go-sqlite3 v1.14.14 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
+	github.com/mediocregopher/radix/v3 v3.8.1 // indirect
+	github.com/microcosm-cc/bluemonday v1.0.23 // indirect
+	github.com/mitchellh/mapstructure v1.5.0 // indirect
+	github.com/mitchellh/pointerstructure v1.2.0 // indirect
+	github.com/nats-io/nats.go v1.23.0 // indirect
+	github.com/nats-io/nkeys v0.3.0 // indirect
+	github.com/nats-io/nuid v1.0.1 // indirect
+	github.com/olekukonko/tablewriter v0.0.5 // indirect
+	github.com/onsi/ginkgo v1.16.5 // indirect
+	github.com/onsi/gomega v1.27.1 // indirect
+	github.com/opentracing/opentracing-go v1.1.0 // indirect
+	github.com/peterh/liner v1.1.1-0.20190123174540-a2c9a5303de7 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/prometheus/client_golang v1.14.0 // indirect
+	github.com/prometheus/client_model v0.3.0 // indirect
+	github.com/prometheus/common v0.39.0 // indirect
+	github.com/prometheus/procfs v0.9.0 // indirect
+	github.com/rivo/uniseg v0.4.4 // indirect
+	github.com/rogpeppe/go-internal v1.10.0 // indirect
+	github.com/rs/cors v1.7.0 // indirect
+	github.com/russross/blackfriday/v2 v2.1.0 // indirect
+	github.com/schollz/closestmatch v2.1.0+incompatible // indirect
+	github.com/sergi/go-diff v1.2.0 // indirect
+	github.com/shirou/gopsutil v3.21.11+incompatible // indirect
+	github.com/sirupsen/logrus v1.9.0 // indirect
+	github.com/status-im/keycard-go v0.2.0 // indirect
+	github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7 // indirect
+	github.com/tdewolff/minify/v2 v2.12.4 // indirect
+	github.com/tdewolff/parse/v2 v2.6.4 // indirect
+	github.com/tklauser/go-sysconf v0.3.11 // indirect
+	github.com/tklauser/numcpus v0.6.0 // indirect
+	github.com/tyler-smith/go-bip39 v1.1.0 // indirect
+	github.com/valyala/bytebufferpool v1.0.0 // indirect
+	github.com/vmihailenco/msgpack/v5 v5.3.5 // indirect
+	github.com/vmihailenco/tagparser/v2 v2.0.0 // indirect
+	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
+	github.com/yosssi/ace v0.0.5 // indirect
+	github.com/yusufpapurcu/wmi v1.2.2 // indirect
+	golang.org/x/crypto v0.7.0 // indirect
+	golang.org/x/exp v0.0.0-20230206171751-46f607a40771 // indirect
+	golang.org/x/net v0.9.0 // indirect
+	golang.org/x/sync v0.1.0 // indirect
+	golang.org/x/sys v0.7.0 // indirect
+	golang.org/x/text v0.9.0 // indirect
+	golang.org/x/time v0.3.0 // indirect
+	golang.org/x/tools v0.8.0 // indirect
+	golang.org/x/xerrors v0.0.0-20220517211312-f3a8303e98df // indirect
+	google.golang.org/protobuf v1.29.0 // indirect
+	gopkg.in/ini.v1 v1.67.0 // indirect
+	gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+
+)

bridge-history-api/go.sum

@@ -0,0 +1,957 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
+cloud.google.com/go v0.43.0/go.mod h1:BOSR3VbTLkk6FDC/TcffxP4NF/FFBGA5ku+jvKOP7pg=
+cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
+cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
+cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
+cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
+cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
+cloud.google.com/go v0.51.0/go.mod h1:hWtGJ6gnXH+KgDv+V0zFGDvpi07n3z8ZNj3T1RW0Gcw=
+cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
+cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
+cloud.google.com/go/bigtable v1.2.0/go.mod h1:JcVAOl45lrTmQfLj7T6TxyMzIN/3FGGcFm+2xVAli2o=
+cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
+cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
+cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
+cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
+cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos=
+collectd.org v0.3.0/go.mod h1:A/8DzQBkF6abtvrT2j/AU/4tiBgJWYyh0y/oB/4MlWE=
+dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
+github.com/AndreasBriese/bbloom v0.0.0-20190306092124-e2d15f34fcf9/go.mod h1:bOvUY6CB00SOBii9/FifXqc0awNKxLFCL/+pkDPuyl8=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/BurntSushi/toml v1.2.1 h1:9F2/+DoOYIOksmaJFPw1tGFy1eDnIJXg+UHjuD8lTak=
+github.com/BurntSushi/toml v1.2.1/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
+github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
+github.com/CloudyKit/fastprinter v0.0.0-20200109182630-33d98a066a53 h1:sR+/8Yb4slttB4vD+b9btVEnWgL3Q00OBTzVT8B9C0c=
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+github.com/CloudyKit/jet/v3 v3.0.0/go.mod h1:HKQPgSJmdK8hdoAbKUUWajkHyHo4RaU5rMdUywE7VMo=
+github.com/CloudyKit/jet/v6 v6.2.0 h1:EpcZ6SR9n28BUGtNJSvlBqf90IpjeFr36Tizxhn/oME=
+github.com/CloudyKit/jet/v6 v6.2.0/go.mod h1:d3ypHeIRNo2+XyqnGA8s+aphtcVpjP5hPwP/Lzo7Ro4=
+github.com/DATA-DOG/go-sqlmock v1.3.3/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
+github.com/DataDog/zstd v1.5.2 h1:vUG4lAyuPCXO0TLbXvPv7EB7cNK1QV/luu55UHLrrn8=
+github.com/DataDog/zstd v1.5.2/go.mod h1:g4AWEaM3yOg3HYfnJ3YIawPnVdXJh9QME85blwSAmyw=
+github.com/Joker/hpp v1.0.0 h1:65+iuJYdRXv/XyN62C1uEmmOx3432rNG/rKlX6V7Kkc=
+github.com/Joker/hpp v1.0.0/go.mod h1:8x5n+M1Hp5hC0g8okX3sR3vFQwynaX/UgSOM9MeBKzY=
+github.com/Joker/jade v1.1.3 h1:Qbeh12Vq6BxURXT1qZBRHsDxeURB8ztcL6f3EXSGeHk=
+github.com/Joker/jade v1.1.3/go.mod h1:T+2WLyt7VH6Lp0TRxQrUYEs64nRc83wkMQrfeIQKduM=
+github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
+github.com/Shopify/goreferrer v0.0.0-20181106222321-ec9c9a553398/go.mod h1:a1uqRtAwp2Xwc6WNPJEufxJ7fx3npB4UV/JOLmbu5I0=
+github.com/Shopify/goreferrer v0.0.0-20220729165902-8cddb4f5de06 h1:KkH3I3sJuOLP3TjA/dfr4NAY8bghDwnXiU7cTKxQqo0=
+github.com/Shopify/goreferrer v0.0.0-20220729165902-8cddb4f5de06/go.mod h1:7erjKLwalezA0k99cWs5L11HWOAPNjdUZ6RxH1BXbbM=
+github.com/VictoriaMetrics/fastcache v1.6.0 h1:C/3Oi3EiBCqufydp1neRZkqcwmEiuRT9c3fqvvgKm5o=
+github.com/VictoriaMetrics/fastcache v1.6.0/go.mod h1:0qHz5QP0GMX4pfmMA/zt5RgfNuXJrTP0zS7DqpHGGTw=
+github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII=
+github.com/ajg/form v1.5.1 h1:t9c7v8JUKu/XxOGBU0yjNpaMloxGEJhUkqFRq0ibGeU=
+github.com/ajg/form v1.5.1/go.mod h1:uL1WgH+h2mgNtvBq0339dVnzXdBETtL2LeUXaIv25UY=
+github.com/ajstarks/svgo v0.0.0-20180226025133-644b8db467af/go.mod h1:K08gAheRH3/J6wwsYMMT4xOr94bZjxIelGM0+d/wbFw=
+github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
+github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/allegro/bigcache v1.2.1-0.20190218064605-e24eb225f156 h1:eMwmnE/GDgah4HI848JfFxHt+iPb26b4zyfspmqY0/8=
+github.com/allegro/bigcache v1.2.1-0.20190218064605-e24eb225f156/go.mod h1:Cb/ax3seSYIx7SuZdm2G2xzfwmv3TPSk2ucNfQESPXM=
+github.com/andreyvit/diff v0.0.0-20170406064948-c7f18ee00883/go.mod h1:rCTlJbsFo29Kk6CurOXKm700vrz8f0KW0JNfpkRJY/8=
+github.com/andybalholm/brotli v1.0.5 h1:8uQZIdzKmjc/iuPu7O2ioW48L81FgatrcpfFmiq/cCs=
+github.com/andybalholm/brotli v1.0.5/go.mod h1:fO7iG3H7G2nSZ7m0zPUDn85XEX2GTukHGRSepvi9Eig=
+github.com/apache/arrow/go/arrow v0.0.0-20191024131854-af6fa24be0db/go.mod h1:VTxUBvSJ3s3eHAg65PNgrsn5BtqCRPdmyXh6rAfdxN0=
+github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
+github.com/aymerick/douceur v0.2.0 h1:Mv+mAeH1Q+n9Fr+oyamOlAkUNPWPlA8PPGR0QAaYuPk=
+github.com/aymerick/douceur v0.2.0/go.mod h1:wlT5vV2O3h55X9m7iVYN0TBM0NH/MmbLnd30/FjWUq4=
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+github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
+github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
+github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
+github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
+github.com/blang/semver/v4 v4.0.0 h1:1PFHFE6yCCTv8C1TeyNNarDzntLi7wMI5i/pzqYIsAM=
+github.com/blang/semver/v4 v4.0.0/go.mod h1:IbckMUScFkM3pff0VJDNKRiT6TG/YpiHIM2yvyW5YoQ=
+github.com/bmizerany/pat v0.0.0-20170815010413-6226ea591a40/go.mod h1:8rLXio+WjiTceGBHIoTvn60HIbs7Hm7bcHjyrSqYB9c=
+github.com/boltdb/bolt v1.3.1/go.mod h1:clJnj/oiGkjum5o1McbSZDSLxVThjynRyGBgiAx27Ps=
+github.com/btcsuite/btcd v0.20.1-beta h1:Ik4hyJqN8Jfyv3S4AGBOmyouMsYE3EdYODkMbQjwPGw=
+github.com/btcsuite/btcd v0.20.1-beta/go.mod h1:wVuoA8VJLEcwgqHBwHmzLRazpKxTv13Px/pDuV7OomQ=
+github.com/btcsuite/btcd/btcec/v2 v2.2.0 h1:fzn1qaOt32TuLjFlkzYSsBC35Q3KUjT1SwPxiMSCF5k=
+github.com/btcsuite/btcd/btcec/v2 v2.2.0/go.mod h1:U7MHm051Al6XmscBQ0BoNydpOTsFAn707034b5nY8zU=
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+modernc.org/sqlite v1.18.1 h1:ko32eKt3jf7eqIkCgPAeHMBXw3riNSLhl2f3loEF7o8=
+modernc.org/strutil v1.1.2 h1:iFBDH6j1Z0bN/Q9udJnnFoFpENA4252qe/7/5woE5MI=
+modernc.org/token v1.0.0 h1:a0jaWiNMDhDUtqOj09wvjWWAqd3q7WpBulmL9H2egsk=
+moul.io/http2curl/v2 v2.3.0 h1:9r3JfDzWPcbIklMOs2TnIFzDYvfAZvjeavG6EzP7jYs=
+rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
+rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=

bridge-history-api/model/request.go

@@ -0,0 +1,11 @@
+package model
+
+type QueryByAddressRequest struct {
+	Address string `url:"address"`
+	Offset  int    `url:"offset"`
+	Limit   int    `url:"limit"`
+}
+
+type QueryByHashRequest struct {
+	Txs []string `url:"txs"`
+}

bridge-history-api/model/response.go

@@ -0,0 +1,18 @@
+package model
+
+import "bridge-history-api/service"
+
+type Data struct {
+	Result []*service.TxHistoryInfo `json:"result"`
+	Total  int                      `json:"total"`
+}
+
+type QueryByAddressResponse struct {
+	Message string `json:"message"`
+	Data    *Data  `json:"data"`
+}
+
+type QueryByHashResponse struct {
+	Message string `json:"message"`
+	Data    *Data  `json:"data"`
+}

bridge-history-api/service/service.go

@@ -0,0 +1,170 @@
+package service
+
+import (
+	"sort"
+	"time"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/log"
+
+	"bridge-history-api/db"
+)
+
+type Finalized struct {
+	Hash           string     `json:"hash"`
+	Amount         string     `json:"amount"`
+	To             string     `json:"to"` // useless
+	IsL1           bool       `json:"isL1"`
+	BlockNumber    uint64     `json:"blockNumber"`
+	BlockTimestamp *time.Time `json:"blockTimestamp"` // uselesss
+}
+
+type TxHistoryInfo struct {
+	Hash           string     `json:"hash"`
+	Amount         string     `json:"amount"`
+	To             string     `json:"to"` // useless
+	IsL1           bool       `json:"isL1"`
+	BlockNumber    uint64     `json:"blockNumber"`
+	BlockTimestamp *time.Time `json:"blockTimestamp"` // useless
+	FinalizeTx     *Finalized `json:"finalizeTx"`
+	CreatedTime    *time.Time `json:"createdTime"`
+}
+
+// HistoryService example service.
+type HistoryService interface {
+	GetTxsByAddress(address common.Address, offset int64, limit int64) ([]*TxHistoryInfo, error)
+	GetTxsByHashes(hashes []string) ([]*TxHistoryInfo, error)
+}
+
+// NewHistoryService returns a service backed with a "db"
+func NewHistoryService(db db.OrmFactory) HistoryService {
+	service := &historyBackend{db: db, prefix: "Scroll-Bridge-History-Server"}
+	return service
+}
+
+type historyBackend struct {
+	prefix string
+	db     db.OrmFactory
+}
+
+func updateCrossTxHash(msgHash string, txInfo *TxHistoryInfo, db db.OrmFactory) {
+	relayed, err := db.GetRelayedMsgByHash(msgHash)
+	if err != nil {
+		log.Error("updateCrossTxHash failed", "error", err)
+		return
+	}
+	if relayed == nil {
+		return
+	}
+	if relayed.Layer1Hash != "" {
+		txInfo.FinalizeTx.Hash = relayed.Layer1Hash
+		txInfo.FinalizeTx.BlockNumber = relayed.Height
+		return
+	}
+	if relayed.Layer2Hash != "" {
+		txInfo.FinalizeTx.Hash = relayed.Layer2Hash
+		txInfo.FinalizeTx.BlockNumber = relayed.Height
+		return
+	}
+
+}
+
+func (h *historyBackend) GetTxsByAddress(address common.Address, offset int64, limit int64) ([]*TxHistoryInfo, error) {
+	txHistories := make([]*TxHistoryInfo, 0)
+	result, err := h.db.GetL1CrossMsgsByAddressWithOffset(address, offset, limit)
+	if err != nil {
+		return nil, err
+	}
+	if len(result) > 0 {
+		for _, r := range result {
+			txHistory := &TxHistoryInfo{
+				Hash:        r.Layer1Hash,
+				Amount:      r.Amount,
+				To:          r.Target,
+				IsL1:        true,
+				BlockNumber: r.Height,
+				CreatedTime: r.CreatedTime,
+				FinalizeTx: &Finalized{
+					Hash: "",
+				},
+			}
+			// update relayed info into results
+			updateCrossTxHash(r.MsgHash, txHistory, h.db)
+			txHistories = append(txHistories, txHistory)
+		}
+	}
+	l2Result, err := h.db.GetL2CrossMsgsByAddressWithOffset(address, offset, limit)
+	if err != nil {
+		return nil, err
+	}
+	if len(l2Result) > 0 {
+		for _, r := range l2Result {
+			txHistory := &TxHistoryInfo{
+				Hash:        r.Layer2Hash,
+				Amount:      r.Amount,
+				To:          r.Target,
+				IsL1:        false,
+				BlockNumber: r.Height,
+				CreatedTime: r.CreatedTime,
+				FinalizeTx: &Finalized{
+					Hash: "",
+				},
+			}
+			updateCrossTxHash(r.MsgHash, txHistory, h.db)
+			txHistories = append(txHistories, txHistory)
+		}
+	}
+	if len(txHistories) > 0 {
+		sort.Slice(txHistories, func(i, j int) bool {
+			return txHistories[i].CreatedTime.Second() > txHistories[j].CreatedTime.Second()
+		})
+	}
+	return txHistories, nil
+}
+
+func (h *historyBackend) GetTxsByHashes(hashes []string) ([]*TxHistoryInfo, error) {
+	txHistories := make([]*TxHistoryInfo, 0)
+	for _, hash := range hashes {
+		l1result, err := h.db.GetL1CrossMsgByHash(common.HexToHash(hash))
+		if err != nil {
+			return nil, err
+		}
+		if l1result != nil {
+			txHistory := &TxHistoryInfo{
+				Hash:        l1result.Layer1Hash,
+				Amount:      l1result.Amount,
+				To:          l1result.Target,
+				IsL1:        true,
+				BlockNumber: l1result.Height,
+				CreatedTime: l1result.CreatedTime,
+				FinalizeTx: &Finalized{
+					Hash: "",
+				},
+			}
+			updateCrossTxHash(l1result.MsgHash, txHistory, h.db)
+			txHistories = append(txHistories, txHistory)
+			continue
+		}
+		l2result, err := h.db.GetL2CrossMsgByHash(common.HexToHash(hash))
+		if err != nil {
+			return nil, err
+		}
+		if l2result != nil {
+			txHistory := &TxHistoryInfo{
+				Hash:        l2result.Layer2Hash,
+				Amount:      l2result.Amount,
+				To:          l2result.Target,
+				IsL1:        false,
+				BlockNumber: l2result.Height,
+				CreatedTime: l2result.CreatedTime,
+				FinalizeTx: &Finalized{
+					Hash: "",
+				},
+			}
+			updateCrossTxHash(l2result.MsgHash, txHistory, h.db)
+			txHistories = append(txHistories, txHistory)
+			continue
+		}
+	}
+	return txHistories, nil
+}

bridge-history-api/utils/flags.go

@@ -0,0 +1,69 @@
+package utils
+
+import (
+	"github.com/urfave/cli/v2"
+)
+
+var (
+	// CommonFlags is used for app common flags in different modules
+	CommonFlags = []cli.Flag{
+		&ConfigFileFlag,
+		&VerbosityFlag,
+		&LogFileFlag,
+		&LogJSONFormat,
+		&LogDebugFlag,
+		&MetricsEnabled,
+		&MetricsAddr,
+		&MetricsPort,
+	}
+	// ConfigFileFlag load json type config file.
+	ConfigFileFlag = cli.StringFlag{
+		Name:  "config",
+		Usage: "JSON configuration file",
+		Value: "./config.json",
+	}
+	// VerbosityFlag log level.
+	VerbosityFlag = cli.IntFlag{
+		Name:  "verbosity",
+		Usage: "Logging verbosity: 0=silent, 1=error, 2=warn, 3=info, 4=debug, 5=detail",
+		Value: 3,
+	}
+	// LogFileFlag decides where the logger output is sent. If this flag is left
+	// empty, it will log to stdout.
+	LogFileFlag = cli.StringFlag{
+		Name:  "log.file",
+		Usage: "Tells the module where to write log entries",
+	}
+	// LogJSONFormat decides the log format is json or not
+	LogJSONFormat = cli.BoolFlag{
+		Name:  "log.json",
+		Usage: "Tells the module whether log format is json or not",
+		Value: true,
+	}
+	// LogDebugFlag make log messages with call-site location
+	LogDebugFlag = cli.BoolFlag{
+		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:    "127.0.0.1",
+	}
+	// MetricsPort is listening port of Metrics reporting server
+	MetricsPort = cli.IntFlag{
+		Name:     "metrics.port",
+		Usage:    "Metrics reporting server listening port",
+		Category: "METRICS",
+		Value:    6060,
+	}
+)

bridge-history-api/utils/logger.go

@@ -0,0 +1,43 @@
+package utils
+
+import (
+	"io"
+	"os"
+	"path/filepath"
+
+	"github.com/ethereum/go-ethereum/cmd/utils"
+	"github.com/ethereum/go-ethereum/log"
+	"github.com/mattn/go-colorable"
+	"github.com/mattn/go-isatty"
+	"github.com/urfave/cli/v2"
+)
+
+// LogSetup is for setup logger
+func LogSetup(ctx *cli.Context) error {
+	var ostream log.Handler
+	if logFile := ctx.String(LogFileFlag.Name); len(logFile) > 0 {
+		fp, err := os.OpenFile(filepath.Clean(logFile), os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0600)
+		if err != nil {
+			utils.Fatalf("Failed to open log file", "err", err)
+		}
+		if ctx.Bool(LogJSONFormat.Name) {
+			ostream = log.StreamHandler(io.Writer(fp), log.JSONFormat())
+		} else {
+			ostream = log.StreamHandler(io.Writer(fp), log.TerminalFormat(true))
+		}
+	} else {
+		output := io.Writer(os.Stderr)
+		usecolor := (isatty.IsTerminal(os.Stderr.Fd()) || isatty.IsCygwinTerminal(os.Stderr.Fd())) && os.Getenv("TERM") != "dumb"
+		if usecolor {
+			output = colorable.NewColorableStderr()
+		}
+		ostream = log.StreamHandler(output, log.TerminalFormat(usecolor))
+	}
+	// show the call file and line number
+	log.PrintOrigins(ctx.Bool(LogDebugFlag.Name))
+	glogger := log.NewGlogHandler(ostream)
+	// Set log level
+	glogger.Verbosity(log.Lvl(ctx.Int(VerbosityFlag.Name)))
+	log.Root().SetHandler(glogger)
+	return nil
+}

bridge-history-api/utils/utils.go

@@ -0,0 +1,56 @@
+package utils
+
+import (
+	"context"
+	"fmt"
+	"math/big"
+
+	"github.com/ethereum/go-ethereum/accounts/abi"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/ethclient"
+
+	backendabi "bridge-history-api/abi"
+)
+
+func GetSafeBlockNumber(ctx context.Context, client *ethclient.Client, confirmations uint64) (uint64, error) {
+	number, err := client.BlockNumber(ctx)
+	if err != nil || number <= confirmations {
+		return 0, err
+	}
+	number = number - confirmations
+	return number, nil
+}
+
+// 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:])
+}
+
+// ComputeMessageHash compute the message hash
+func ComputeMessageHash(
+	sender common.Address,
+	target common.Address,
+	value *big.Int,
+	messageNonce *big.Int,
+	message []byte,
+) common.Hash {
+	data, _ := backendabi.L2ScrollMessengerABI.Pack("relayMessage", sender, target, value, messageNonce, message)
+	return common.BytesToHash(crypto.Keccak256(data))
+}

bridge/Makefile

@@ -8,8 +8,23 @@ mock_abi:
 	go run github.com/scroll-tech/go-ethereum/cmd/abigen --sol mock_bridge/MockBridgeL1.sol --pkg mock_bridge --out mock_bridge/MockBridgeL1.go
 	go run github.com/scroll-tech/go-ethereum/cmd/abigen --sol mock_bridge/MockBridgeL2.sol --pkg mock_bridge --out mock_bridge/MockBridgeL2.go
 
-bridge: ## Builds the Bridge instance.
-	go build -o $(PWD)/build/bin/bridge ./cmd
+bridge_bins: ## Builds the Bridge bins.
+	go build -o $(PWD)/build/bin/event_watcher ./cmd/event_watcher/
+	go build -o $(PWD)/build/bin/gas_oracle ./cmd/gas_oracle/
+	go build -o $(PWD)/build/bin/message_relayer ./cmd/msg_relayer/
+	go build -o $(PWD)/build/bin/rollup_relayer ./cmd/rollup_relayer/
+
+event_watcher: ## Builds the event_watcher bin
+	go build -o $(PWD)/build/bin/event_watcher ./cmd/event_watcher/
+
+gas_oracle: ## Builds the gas_oracle bin
+	go build -o $(PWD)/build/bin/gas_oracle ./cmd/gas_oracle/
+
+message_relayer: ## Builds the message_relayer bin
+	go build -o $(PWD)/build/bin/message_relayer ./cmd/msg_relayer/
+
+rollup_relayer: ## Builds the rollup_relayer bin
+	go build -o $(PWD)/build/bin/rollup_relayer ./cmd/rollup_relayer/
 
 test:
 	go test -v -race -coverprofile=coverage.txt -covermode=atomic -p 1 $(PWD)/...
@@ -20,8 +35,14 @@ lint: ## Lint the files - used for CI
 clean: ## Empty out the bin folder
 	@rm -rf build/bin
 
-docker:
-	DOCKER_BUILDKIT=1 docker build -t scrolltech/${IMAGE_NAME}:${IMAGE_VERSION} ${REPO_ROOT_DIR}/ -f ${REPO_ROOT_DIR}/build/dockerfiles/bridge.Dockerfile
-
 docker_push:
-	docker push scrolltech/${IMAGE_NAME}:${IMAGE_VERSION}
+	docker docker push scrolltech/gas-oracle:${IMAGE_VERSION}
+	docker docker push scrolltech/event-watcher:${IMAGE_VERSION}
+	docker docker push scrolltech/rollup-relayer:${IMAGE_VERSION}
+	docker docker push scrolltech/msg-relayer:${IMAGE_VERSION}
+
+docker:
+	DOCKER_BUILDKIT=1 docker build -t scrolltech/gas-oracle:${IMAGE_VERSION} ${REPO_ROOT_DIR}/ -f ${REPO_ROOT_DIR}/build/dockerfiles/gas_oracle.Dockerfile
+	DOCKER_BUILDKIT=1 docker build -t scrolltech/event-watcher:${IMAGE_VERSION} ${REPO_ROOT_DIR}/ -f ${REPO_ROOT_DIR}/build/dockerfiles/event_watcher.Dockerfile
+	DOCKER_BUILDKIT=1 docker build -t scrolltech/rollup-relayer:${IMAGE_VERSION} ${REPO_ROOT_DIR}/ -f ${REPO_ROOT_DIR}/build/dockerfiles/rollup_relayer.Dockerfile
+	DOCKER_BUILDKIT=1 docker build -t scrolltech/msg-relayer:${IMAGE_VERSION} ${REPO_ROOT_DIR}/ -f ${REPO_ROOT_DIR}/build/dockerfiles/msg_relayer.Dockerfile

bridge/abi/bridge_abi.go

@@ -104,7 +104,7 @@ var L1MessageQueueMetaData = &bind.MetaData{
 
 // L2GasPriceOracleMetaData contains all meta data concerning the L2GasPriceOracle contract.
 var L2GasPriceOracleMetaData = &bind.MetaData{
-	ABI: "[{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"l2BaseFee\",\"type\":\"uint256\"}],\"name\":\"L2BaseFeeUpdated\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"overhead\",\"type\":\"uint256\"}],\"name\":\"OverheadUpdated\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"previousOwner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"OwnershipTransferred\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"scalar\",\"type\":\"uint256\"}],\"name\":\"ScalarUpdated\",\"type\":\"event\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"bytes\",\"name\":\"_message\",\"type\":\"bytes\"},{\"internalType\":\"uint256\",\"name\":\"_gasLimit\",\"type\":\"uint256\"}],\"name\":\"estimateCrossDomainMessageFee\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes\",\"name\":\"_data\",\"type\":\"bytes\"}],\"name\":\"getL1GasUsed\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"initialize\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"l1BaseFee\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"l2BaseFee\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"overhead\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"owner\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"renounceOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"scalar\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"_l2BaseFee\",\"type\":\"uint256\"}],\"name\":\"setL2BaseFee\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"_overhead\",\"type\":\"uint256\"}],\"name\":\"setOverhead\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"_scalar\",\"type\":\"uint256\"}],\"name\":\"setScalar\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"transferOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}]",
+	ABI: "[{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"l2BaseFee\",\"type\":\"uint256\"}],\"name\":\"L2BaseFeeUpdated\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"previousOwner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"OwnershipTransferred\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"address\",\"name\":\"_oldWhitelist\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"_newWhitelist\",\"type\":\"address\"}],\"name\":\"UpdateWhitelist\",\"type\":\"event\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"bytes\",\"name\":\"\",\"type\":\"bytes\"},{\"internalType\":\"uint256\",\"name\":\"_gasLimit\",\"type\":\"uint256\"}],\"name\":\"estimateCrossDomainMessageFee\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"initialize\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"l2BaseFee\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"owner\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"renounceOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"_l2BaseFee\",\"type\":\"uint256\"}],\"name\":\"setL2BaseFee\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"transferOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_newWhitelist\",\"type\":\"address\"}],\"name\":\"updateWhitelist\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"whitelist\",\"outputs\":[{\"internalType\":\"contract IWhitelist\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"}]",
 }
 
 // L2ScrollMessengerMetaData contains all meta data concerning the L2ScrollMessenger contract.

bridge/cmd/app/app.go

@@ -1,130 +0,0 @@
-package app
-
-import (
-	"context"
-	"fmt"
-	"os"
-	"os/signal"
-
-	"github.com/scroll-tech/go-ethereum/log"
-	"github.com/urfave/cli/v2"
-
-	"scroll-tech/database"
-
-	"scroll-tech/common/metrics"
-	"scroll-tech/common/utils"
-	"scroll-tech/common/version"
-
-	"scroll-tech/bridge/config"
-	"scroll-tech/bridge/l1"
-	"scroll-tech/bridge/l2"
-)
-
-var (
-	app *cli.App
-)
-
-func init() {
-	// Set up Bridge app info.
-	app = cli.NewApp()
-
-	app.Action = action
-	app.Name = "bridge"
-	app.Usage = "The Scroll Bridge"
-	app.Version = version.Version
-	app.Flags = append(app.Flags, utils.CommonFlags...)
-	app.Flags = append(app.Flags, apiFlags...)
-
-	app.Before = func(ctx *cli.Context) error {
-		return utils.LogSetup(ctx)
-	}
-
-	// Register `bridge-test` app for integration-test.
-	utils.RegisterSimulation(app, "bridge-test")
-}
-
-func action(ctx *cli.Context) error {
-	// Load config file.
-	cfgFile := ctx.String(utils.ConfigFileFlag.Name)
-	cfg, err := config.NewConfig(cfgFile)
-	if err != nil {
-		log.Crit("failed to load config file", "config file", cfgFile, "error", err)
-	}
-
-	// 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)
-	}
-
-	var (
-		l1Backend *l1.Backend
-		l2Backend *l2.Backend
-	)
-	// @todo change nil to actual client after https://scroll-tech/bridge/pull/40 merged
-	l1Backend, err = l1.New(ctx.Context, cfg.L1Config, ormFactory)
-	if err != nil {
-		return err
-	}
-	l2Backend, err = l2.New(ctx.Context, cfg.L2Config, ormFactory)
-	if err != nil {
-		return err
-	}
-	defer func() {
-		l1Backend.Stop()
-		l2Backend.Stop()
-		err = ormFactory.Close()
-		if err != nil {
-			log.Error("can not close ormFactory", "error", err)
-		}
-	}()
-
-	// Start all modules.
-	if err = l1Backend.Start(); err != nil {
-		log.Crit("couldn't start l1 backend", "error", err)
-	}
-	if err = l2Backend.Start(); err != nil {
-		log.Crit("couldn't start l2 backend", "error", err)
-	}
-
-	// Register api and start rpc service.
-	if ctx.Bool(httpEnabledFlag.Name) {
-		handler, addr, err := utils.StartHTTPEndpoint(
-			fmt.Sprintf(
-				"%s:%d",
-				ctx.String(httpListenAddrFlag.Name),
-				ctx.Int(httpPortFlag.Name)),
-			l2Backend.APIs())
-		if err != nil {
-			log.Crit("Could not start RPC api", "error", err)
-		}
-		defer func() {
-			_ = handler.Shutdown(ctx.Context)
-			log.Info("HTTP endpoint closed", "url", fmt.Sprintf("http://%v/", addr))
-		}()
-		log.Info("HTTP endpoint opened", "url", fmt.Sprintf("http://%v/", addr))
-	}
-
-	log.Info("Start bridge successfully")
-
-	// Catch CTRL-C to ensure a graceful shutdown.
-	interrupt := make(chan os.Signal, 1)
-	signal.Notify(interrupt, os.Interrupt)
-
-	// Wait until the interrupt signal is received from an OS signal.
-	<-interrupt
-
-	return nil
-}
-
-// Run run bridge cmd instance.
-func Run() {
-	// Run the bridge.
-	if err := app.Run(os.Args); err != nil {
-		_, _ = fmt.Fprintln(os.Stderr, err)
-		os.Exit(1)
-	}
-}

bridge/cmd/app/app_test.go

@@ -1,19 +0,0 @@
-package app
-
-import (
-	"fmt"
-	"testing"
-	"time"
-
-	"scroll-tech/common/cmd"
-	"scroll-tech/common/version"
-)
-
-func TestRunBridge(t *testing.T) {
-	bridge := cmd.NewCmd("bridge-test", "--version")
-	defer bridge.WaitExit()
-
-	// wait result
-	bridge.ExpectWithTimeout(t, true, time.Second*3, fmt.Sprintf("bridge version %s", version.Version))
-	bridge.RunApp(nil)
-}

bridge/cmd/app/flags.go

@@ -1,31 +0,0 @@
-package app
-
-import (
-	"github.com/urfave/cli/v2"
-)
-
-var (
-	apiFlags = []cli.Flag{
-		&httpEnabledFlag,
-		&httpListenAddrFlag,
-		&httpPortFlag,
-	}
-	// httpEnabledFlag enable rpc server.
-	httpEnabledFlag = cli.BoolFlag{
-		Name:  "http",
-		Usage: "Enable the HTTP-RPC server",
-		Value: false,
-	}
-	// httpListenAddrFlag set the http address.
-	httpListenAddrFlag = cli.StringFlag{
-		Name:  "http.addr",
-		Usage: "HTTP-RPC server listening interface",
-		Value: "localhost",
-	}
-	// httpPortFlag set http.port.
-	httpPortFlag = cli.IntFlag{
-		Name:  "http.port",
-		Usage: "HTTP-RPC server listening port",
-		Value: 8290,
-	}
-)

bridge/cmd/event_watcher/app/app.go

@@ -0,0 +1,114 @@
+package app
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/signal"
+	"time"
+
+	"github.com/scroll-tech/go-ethereum/ethclient"
+	"github.com/scroll-tech/go-ethereum/log"
+	"github.com/urfave/cli/v2"
+
+	"scroll-tech/database"
+
+	"scroll-tech/common/metrics"
+	"scroll-tech/common/version"
+
+	"scroll-tech/bridge/config"
+	"scroll-tech/bridge/watcher"
+
+	cutils "scroll-tech/common/utils"
+)
+
+var (
+	app *cli.App
+)
+
+func init() {
+	// Set up event-watcher app info.
+	app = cli.NewApp()
+
+	app.Action = action
+	app.Name = "event-watcher"
+	app.Usage = "The Scroll Event Watcher"
+	app.Version = version.Version
+	app.Flags = append(app.Flags, cutils.CommonFlags...)
+	app.Commands = []*cli.Command{}
+
+	app.Before = func(ctx *cli.Context) error {
+		return cutils.LogSetup(ctx)
+	}
+
+	// Register `event-watcher-test` app for integration-test.
+	cutils.RegisterSimulation(app, cutils.EventWatcherApp)
+}
+
+func action(ctx *cli.Context) error {
+	// Load config file.
+	cfgFile := ctx.String(cutils.ConfigFileFlag.Name)
+	cfg, err := config.NewConfig(cfgFile)
+	if err != nil {
+		log.Crit("failed to load config file", "config file", cfgFile, "error", err)
+	}
+
+	subCtx, cancel := context.WithCancel(ctx.Context)
+	// 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)
+	}
+
+	defer func() {
+		cancel()
+		err = ormFactory.Close()
+		if err != nil {
+			log.Error("can not close ormFactory", "error", err)
+		}
+	}()
+
+	// Start metrics server.
+	metrics.Serve(subCtx, ctx)
+	l1client, err := ethclient.Dial(cfg.L1Config.Endpoint)
+	if err != nil {
+		log.Error("failed to connect l1 geth", "config file", cfgFile, "error", err)
+		return err
+	}
+
+	l2client, err := ethclient.Dial(cfg.L2Config.Endpoint)
+	if err != nil {
+		log.Error("failed to connect l2 geth", "config file", cfgFile, "error", err)
+		return err
+	}
+	l1watcher := watcher.NewL1WatcherClient(ctx.Context, l1client, cfg.L1Config.StartHeight, cfg.L1Config.Confirmations, cfg.L1Config.L1MessengerAddress, cfg.L1Config.L1MessageQueueAddress, cfg.L1Config.ScrollChainContractAddress, ormFactory)
+	l2watcher := watcher.NewL2WatcherClient(ctx.Context, l2client, cfg.L2Config.Confirmations, cfg.L2Config.L2MessengerAddress, cfg.L2Config.L2MessageQueueAddress, cfg.L2Config.WithdrawTrieRootSlot, ormFactory)
+
+	go cutils.Loop(subCtx, 10*time.Second, func() {
+		if loopErr := l1watcher.FetchContractEvent(); loopErr != nil {
+			log.Error("Failed to fetch bridge contract", "err", loopErr)
+		}
+	})
+
+	// Start l2 watcher process
+	go cutils.Loop(subCtx, 2*time.Second, l2watcher.FetchContractEvent)
+	// Finish start all l2 functions
+	log.Info("Start event-watcher successfully")
+
+	// Catch CTRL-C to ensure a graceful shutdown.
+	interrupt := make(chan os.Signal, 1)
+	signal.Notify(interrupt, os.Interrupt)
+
+	// Wait until the interrupt signal is received from an OS signal.
+	<-interrupt
+
+	return nil
+}
+
+// Run event watcher cmd instance.
+func Run() {
+	if err := app.Run(os.Args); err != nil {
+		_, _ = fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+}

bridge/cmd/event_watcher/main.go

@@ -0,0 +1,7 @@
+package main
+
+import "scroll-tech/bridge/cmd/event_watcher/app"
+
+func main() {
+	app.Run()
+}

bridge/cmd/gas_oracle/app/app.go

@@ -0,0 +1,136 @@
+package app
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/signal"
+	"time"
+
+	"github.com/scroll-tech/go-ethereum/ethclient"
+	"github.com/scroll-tech/go-ethereum/log"
+	"github.com/urfave/cli/v2"
+
+	"scroll-tech/database"
+
+	"scroll-tech/common/metrics"
+	"scroll-tech/common/version"
+
+	"scroll-tech/bridge/config"
+	"scroll-tech/bridge/relayer"
+	"scroll-tech/bridge/utils"
+	"scroll-tech/bridge/watcher"
+
+	cutils "scroll-tech/common/utils"
+)
+
+var (
+	app *cli.App
+)
+
+func init() {
+	// Set up gas-oracle app info.
+	app = cli.NewApp()
+
+	app.Action = action
+	app.Name = "gas-oracle"
+	app.Usage = "The Scroll Gas Oracle"
+	app.Description = "Scroll Gas Oracle."
+	app.Version = version.Version
+	app.Flags = append(app.Flags, cutils.CommonFlags...)
+	app.Commands = []*cli.Command{}
+
+	app.Before = func(ctx *cli.Context) error {
+		return cutils.LogSetup(ctx)
+	}
+
+	// Register `gas-oracle-test` app for integration-test.
+	cutils.RegisterSimulation(app, cutils.GasOracleApp)
+}
+
+func action(ctx *cli.Context) error {
+	// Load config file.
+	cfgFile := ctx.String(cutils.ConfigFileFlag.Name)
+	cfg, err := config.NewConfig(cfgFile)
+	if err != nil {
+		log.Crit("failed to load config file", "config file", cfgFile, "error", err)
+	}
+	subCtx, cancel := context.WithCancel(ctx.Context)
+	// 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)
+	}
+
+	defer func() {
+		cancel()
+		err = ormFactory.Close()
+		if err != nil {
+			log.Error("can not close ormFactory", "error", err)
+		}
+	}()
+	// Start metrics server.
+	metrics.Serve(subCtx, ctx)
+
+	l1client, err := ethclient.Dial(cfg.L1Config.Endpoint)
+	if err != nil {
+		log.Error("failed to connect l1 geth", "config file", cfgFile, "error", err)
+		return err
+	}
+
+	// Init l2geth connection
+	l2client, err := ethclient.Dial(cfg.L2Config.Endpoint)
+	if err != nil {
+		log.Error("failed to connect l2 geth", "config file", cfgFile, "error", err)
+		return err
+	}
+
+	l1watcher := watcher.NewL1WatcherClient(ctx.Context, l1client, cfg.L1Config.StartHeight, cfg.L1Config.Confirmations, cfg.L1Config.L1MessengerAddress, cfg.L1Config.L1MessageQueueAddress, cfg.L1Config.ScrollChainContractAddress, ormFactory)
+
+	l1relayer, err := relayer.NewLayer1Relayer(ctx.Context, ormFactory, cfg.L1Config.RelayerConfig)
+	if err != nil {
+		log.Error("failed to create new l1 relayer", "config file", cfgFile, "error", err)
+		return err
+	}
+	l2relayer, err := relayer.NewLayer2Relayer(ctx.Context, l2client, ormFactory, cfg.L2Config.RelayerConfig)
+	if err != nil {
+		log.Error("failed to create new l2 relayer", "config file", cfgFile, "error", err)
+		return err
+	}
+	// Start l1 watcher process
+	go cutils.LoopWithContext(subCtx, 10*time.Second, func(ctx context.Context) {
+		number, loopErr := utils.GetLatestConfirmedBlockNumber(ctx, l1client, cfg.L1Config.Confirmations)
+		if loopErr != nil {
+			log.Error("failed to get block number", "err", loopErr)
+			return
+		}
+
+		if loopErr = l1watcher.FetchBlockHeader(number); loopErr != nil {
+			log.Error("Failed to fetch L1 block header", "lastest", number, "err", loopErr)
+		}
+	})
+
+	// Start l1relayer process
+	go cutils.Loop(subCtx, 10*time.Second, l1relayer.ProcessGasPriceOracle)
+	go cutils.Loop(subCtx, 2*time.Second, l2relayer.ProcessGasPriceOracle)
+
+	// Finish start all message relayer functions
+	log.Info("Start gas-oracle successfully")
+
+	// Catch CTRL-C to ensure a graceful shutdown.
+	interrupt := make(chan os.Signal, 1)
+	signal.Notify(interrupt, os.Interrupt)
+
+	// Wait until the interrupt signal is received from an OS signal.
+	<-interrupt
+
+	return nil
+}
+
+// Run message_relayer cmd instance.
+func Run() {
+	if err := app.Run(os.Args); err != nil {
+		_, _ = fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+}

bridge/cmd/gas_oracle/main.go

@@ -0,0 +1,7 @@
+package main
+
+import "scroll-tech/bridge/cmd/gas_oracle/app"
+
+func main() {
+	app.Run()
+}

bridge/cmd/main.go

@@ -1,7 +0,0 @@
-package main
-
-import "scroll-tech/bridge/cmd/app"
-
-func main() {
-	app.Run()
-}

bridge/cmd/mock_app.go

@@ -0,0 +1,106 @@
+package app
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"testing"
+	"time"
+
+	"scroll-tech/common/cmd"
+	"scroll-tech/common/docker"
+	"scroll-tech/common/utils"
+
+	"scroll-tech/bridge/config"
+)
+
+// MockApp mockApp-test client manager.
+type MockApp struct {
+	Config *config.Config
+	base   *docker.App
+
+	mockApps map[utils.MockAppName]docker.AppAPI
+
+	originFile string
+	bridgeFile string
+
+	args []string
+}
+
+// NewBridgeApp return a new bridgeApp manager, name mush be one them.
+func NewBridgeApp(base *docker.App, file string) *MockApp {
+
+	bridgeFile := fmt.Sprintf("/tmp/%d_bridge-config.json", base.Timestamp)
+	bridgeApp := &MockApp{
+		base:       base,
+		mockApps:   make(map[utils.MockAppName]docker.AppAPI),
+		originFile: file,
+		bridgeFile: bridgeFile,
+		args:       []string{"--log.debug", "--config", bridgeFile},
+	}
+	if err := bridgeApp.MockConfig(true); err != nil {
+		panic(err)
+	}
+	return bridgeApp
+}
+
+// RunApp run bridge-test child process by multi parameters.
+func (b *MockApp) RunApp(t *testing.T, name utils.MockAppName, args ...string) {
+	if !(name == utils.EventWatcherApp ||
+		name == utils.GasOracleApp ||
+		name == utils.MessageRelayerApp ||
+		name == utils.RollupRelayerApp) {
+		t.Errorf(fmt.Sprintf("Don't support the mock app, name: %s", name))
+		return
+	}
+
+	if app, ok := b.mockApps[name]; ok {
+		t.Logf(fmt.Sprintf("%s already exist, free the current and recreate again", string(name)))
+		app.WaitExit()
+	}
+	appAPI := cmd.NewCmd(string(name), append(b.args, args...)...)
+	keyword := fmt.Sprintf("Start %s successfully", string(name)[:len(string(name))-len("-test")])
+	appAPI.RunApp(func() bool { return appAPI.WaitResult(t, time.Second*20, keyword) })
+	b.mockApps[name] = appAPI
+}
+
+// WaitExit wait util all processes exit.
+func (b *MockApp) WaitExit() {
+	for _, app := range b.mockApps {
+		app.WaitExit()
+	}
+	b.mockApps = make(map[utils.MockAppName]docker.AppAPI)
+}
+
+// Free stop and release bridge mocked apps.
+func (b *MockApp) Free() {
+	b.WaitExit()
+	_ = os.Remove(b.bridgeFile)
+}
+
+// MockConfig creates a new bridge config.
+func (b *MockApp) MockConfig(store bool) error {
+	base := b.base
+	// Load origin bridge config file.
+	cfg, err := config.NewConfig(b.originFile)
+	if err != nil {
+		return err
+	}
+
+	cfg.L1Config.Endpoint = base.L1gethImg.Endpoint()
+	cfg.L2Config.RelayerConfig.SenderConfig.Endpoint = base.L1gethImg.Endpoint()
+	cfg.L2Config.Endpoint = base.L2gethImg.Endpoint()
+	cfg.L1Config.RelayerConfig.SenderConfig.Endpoint = base.L2gethImg.Endpoint()
+	cfg.DBConfig.DSN = base.DBImg.Endpoint()
+	b.Config = cfg
+
+	if !store {
+		return nil
+	}
+	// Store changed bridge config into a temp file.
+	data, err := json.Marshal(b.Config)
+	if err != nil {
+		return err
+	}
+	return os.WriteFile(b.bridgeFile, data, 0600)
+}

bridge/cmd/msg_relayer/app/app.go

@@ -0,0 +1,118 @@
+package app
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/signal"
+	"time"
+
+	"github.com/scroll-tech/go-ethereum/ethclient"
+	"github.com/scroll-tech/go-ethereum/log"
+	"github.com/urfave/cli/v2"
+
+	"scroll-tech/database"
+
+	"scroll-tech/common/metrics"
+	"scroll-tech/common/version"
+
+	"scroll-tech/bridge/config"
+	"scroll-tech/bridge/relayer"
+
+	cutils "scroll-tech/common/utils"
+)
+
+var (
+	app *cli.App
+)
+
+func init() {
+	// Set up message-relayer app info.
+	app = cli.NewApp()
+
+	app.Action = action
+	app.Name = "message-relayer"
+	app.Usage = "The Scroll Message Relayer"
+	app.Description = "Message Relayer contains two main service: 1) relay l1 message to l2. 2) relay l2 message to l1."
+	app.Version = version.Version
+	app.Flags = append(app.Flags, cutils.CommonFlags...)
+	app.Commands = []*cli.Command{}
+
+	app.Before = func(ctx *cli.Context) error {
+		return cutils.LogSetup(ctx)
+	}
+
+	// Register `message-relayer-test` app for integration-test.
+	cutils.RegisterSimulation(app, cutils.MessageRelayerApp)
+}
+
+func action(ctx *cli.Context) error {
+	// Load config file.
+	cfgFile := ctx.String(cutils.ConfigFileFlag.Name)
+	cfg, err := config.NewConfig(cfgFile)
+	if err != nil {
+		log.Crit("failed to load config file", "config file", cfgFile, "error", err)
+	}
+	subCtx, cancel := context.WithCancel(ctx.Context)
+
+	// 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)
+	}
+
+	defer func() {
+		cancel()
+		err = ormFactory.Close()
+		if err != nil {
+			log.Error("can not close ormFactory", "error", err)
+		}
+	}()
+
+	// Start metrics server.
+	metrics.Serve(subCtx, ctx)
+
+	// Init l2geth connection
+	l2client, err := ethclient.Dial(cfg.L2Config.Endpoint)
+	if err != nil {
+		log.Error("failed to connect l2 geth", "config file", cfgFile, "error", err)
+		return err
+	}
+
+	l1relayer, err := relayer.NewLayer1Relayer(ctx.Context, ormFactory, cfg.L1Config.RelayerConfig)
+	if err != nil {
+		log.Error("failed to create new l1 relayer", "config file", cfgFile, "error", err)
+		return err
+	}
+	l2relayer, err := relayer.NewLayer2Relayer(ctx.Context, l2client, ormFactory, cfg.L2Config.RelayerConfig)
+	if err != nil {
+		log.Error("failed to create new l2 relayer", "config file", cfgFile, "error", err)
+		return err
+	}
+
+	// Start l1relayer process
+	go cutils.Loop(subCtx, 10*time.Second, l1relayer.ProcessSavedEvents)
+
+	// Start l2relayer process
+	go cutils.Loop(subCtx, 2*time.Second, l2relayer.ProcessSavedEvents)
+
+	// Finish start all message relayer functions
+	log.Info("Start message-relayer successfully")
+
+	// Catch CTRL-C to ensure a graceful shutdown.
+	interrupt := make(chan os.Signal, 1)
+	signal.Notify(interrupt, os.Interrupt)
+
+	// Wait until the interrupt signal is received from an OS signal.
+	<-interrupt
+
+	return nil
+}
+
+// Run message_relayer cmd instance.
+func Run() {
+	if err := app.Run(os.Args); err != nil {
+		_, _ = fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+}

bridge/cmd/msg_relayer/main.go

@@ -0,0 +1,7 @@
+package main
+
+import "scroll-tech/bridge/cmd/msg_relayer/app"
+
+func main() {
+	app.Run()
+}

bridge/cmd/rollup_relayer/app/app.go

@@ -0,0 +1,133 @@
+package app
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/signal"
+	"time"
+
+	"github.com/scroll-tech/go-ethereum/ethclient"
+	"github.com/scroll-tech/go-ethereum/log"
+	"github.com/urfave/cli/v2"
+
+	"scroll-tech/database"
+
+	"scroll-tech/common/metrics"
+	"scroll-tech/common/version"
+
+	"scroll-tech/bridge/config"
+	"scroll-tech/bridge/relayer"
+	"scroll-tech/bridge/utils"
+	"scroll-tech/bridge/watcher"
+
+	cutils "scroll-tech/common/utils"
+)
+
+var (
+	app *cli.App
+)
+
+func init() {
+	// Set up rollup-relayer app info.
+	app = cli.NewApp()
+
+	app.Action = action
+	app.Name = "rollup-relayer"
+	app.Usage = "The Scroll Rollup Relayer"
+	app.Version = version.Version
+	app.Flags = append(app.Flags, cutils.CommonFlags...)
+	app.Commands = []*cli.Command{}
+
+	app.Before = func(ctx *cli.Context) error {
+		return cutils.LogSetup(ctx)
+	}
+	// Register `rollup-relayer-test` app for integration-test.
+	cutils.RegisterSimulation(app, cutils.RollupRelayerApp)
+}
+
+func action(ctx *cli.Context) error {
+	// Load config file.
+	cfgFile := ctx.String(cutils.ConfigFileFlag.Name)
+	cfg, err := config.NewConfig(cfgFile)
+	if err != nil {
+		log.Crit("failed to load config file", "config file", cfgFile, "error", err)
+	}
+
+	subCtx, cancel := context.WithCancel(ctx.Context)
+
+	// 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)
+	}
+	defer func() {
+		cancel()
+		err = ormFactory.Close()
+		if err != nil {
+			log.Error("can not close ormFactory", "error", err)
+		}
+	}()
+
+	// Start metrics server.
+	metrics.Serve(subCtx, ctx)
+
+	// Init l2geth connection
+	l2client, err := ethclient.Dial(cfg.L2Config.Endpoint)
+	if err != nil {
+		log.Error("failed to connect l2 geth", "config file", cfgFile, "error", err)
+		return err
+	}
+
+	l2relayer, err := relayer.NewLayer2Relayer(ctx.Context, l2client, ormFactory, cfg.L2Config.RelayerConfig)
+	if err != nil {
+		log.Error("failed to create l2 relayer", "config file", cfgFile, "error", err)
+		return err
+	}
+
+	batchProposer := watcher.NewBatchProposer(subCtx, cfg.L2Config.BatchProposerConfig, l2relayer, ormFactory)
+	if err != nil {
+		log.Error("failed to create batchProposer", "config file", cfgFile, "error", err)
+		return err
+	}
+
+	l2watcher := watcher.NewL2WatcherClient(subCtx, l2client, cfg.L2Config.Confirmations, cfg.L2Config.L2MessengerAddress, cfg.L2Config.L2MessageQueueAddress, cfg.L2Config.WithdrawTrieRootSlot, ormFactory)
+
+	// Watcher loop to fetch missing blocks
+	go cutils.LoopWithContext(subCtx, 2*time.Second, func(ctx context.Context) {
+		number, loopErr := utils.GetLatestConfirmedBlockNumber(ctx, l2client, cfg.L2Config.Confirmations)
+		if loopErr != nil {
+			log.Error("failed to get block number", "err", loopErr)
+			return
+		}
+		l2watcher.TryFetchRunningMissingBlocks(ctx, number)
+	})
+
+	// Batch proposer loop
+	go cutils.Loop(subCtx, 2*time.Second, func() {
+		batchProposer.TryProposeBatch()
+		batchProposer.TryCommitBatches()
+	})
+
+	go cutils.Loop(subCtx, 2*time.Second, l2relayer.ProcessCommittedBatches)
+
+	// Finish start all rollup relayer functions.
+	log.Info("Start rollup-relayer successfully")
+
+	// Catch CTRL-C to ensure a graceful shutdown.
+	interrupt := make(chan os.Signal, 1)
+	signal.Notify(interrupt, os.Interrupt)
+
+	// Wait until the interrupt signal is received from an OS signal.
+	<-interrupt
+
+	return nil
+}
+
+// Run rollup relayer cmd instance.
+func Run() {
+	if err := app.Run(os.Args); err != nil {
+		_, _ = fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+}

bridge/cmd/rollup_relayer/main.go

@@ -0,0 +1,7 @@
+package main
+
+import "scroll-tech/bridge/cmd/rollup_relayer/app"
+
+func main() {
+	app.Run()
+}

bridge/config.json

@@ -1,7 +1,7 @@
 {
   "l1_config": {
     "confirmations": "0x6",
-    "endpoint": "https://goerli.infura.io/v3/9aa3d95b3bc440fa88ea12eaa4456161",
+    "endpoint": "DUMMY_ENDPOINT",
     "l1_messenger_address": "0x0000000000000000000000000000000000000000",
     "l1_message_queue_address": "0x0000000000000000000000000000000000000000",
     "scroll_chain_address": "0x0000000000000000000000000000000000000000",
@@ -19,7 +19,8 @@
         "escalate_multiple_den": 10,
         "max_gas_price": 10000000000,
         "tx_type": "LegacyTx",
-        "min_balance": 100000000000000000000
+        "min_balance": 100000000000000000000,
+        "pending_limit": 10
       },
       "gas_oracle_config": {
         "min_gas_price": 0,
@@ -44,7 +45,7 @@
       "messenger_contract_address": "0x0000000000000000000000000000000000000000",
       "gas_price_oracle_address": "0x0000000000000000000000000000000000000000",
       "sender_config": {
-        "endpoint": "https://goerli.infura.io/v3/9aa3d95b3bc440fa88ea12eaa4456161",
+        "endpoint": "DUMMY_ENDPOINT",
         "check_pending_time": 10,
         "check_balance_time": 100,
         "escalate_blocks": 100,
@@ -53,7 +54,8 @@
         "escalate_multiple_den": 10,
         "max_gas_price": 10000000000,
         "tx_type": "LegacyTx",
-        "min_balance": 100000000000000000000
+        "min_balance": 100000000000000000000,
+        "pending_limit": 10
       },
       "gas_oracle_config": {
         "min_gas_price": 0,

bridge/config/config_test.go

@@ -1,4 +1,4 @@
-package config_test
+package config
 
 import (
 	"encoding/json"
@@ -8,30 +8,48 @@ import (
 	"time"
 
 	"github.com/stretchr/testify/assert"
-
-	"scroll-tech/bridge/config"
 )
 
 func TestConfig(t *testing.T) {
-	cfg, err := config.NewConfig("../config.json")
-	assert.True(t, assert.NoError(t, err), "failed to load config")
+	t.Run("Success Case", func(t *testing.T) {
+		cfg, err := NewConfig("../config.json")
+		assert.NoError(t, err, "failed to load config")
 
-	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))
+		assert.Len(t, cfg.L1Config.RelayerConfig.MessageSenderPrivateKeys, 1)
+		assert.Len(t, cfg.L2Config.RelayerConfig.MessageSenderPrivateKeys, 1)
+		assert.Len(t, cfg.L2Config.RelayerConfig.RollupSenderPrivateKeys, 1)
 
-	data, err := json.Marshal(cfg)
-	assert.NoError(t, err)
+		data, err := json.Marshal(cfg)
+		assert.NoError(t, err)
 
-	tmpJosn := fmt.Sprintf("/tmp/%d_bridge_config.json", time.Now().Nanosecond())
-	defer func() { _ = os.Remove(tmpJosn) }()
+		tmpJSON := fmt.Sprintf("/tmp/%d_bridge_config.json", time.Now().Nanosecond())
+		defer func() { _ = os.Remove(tmpJSON) }()
 
-	assert.NoError(t, os.WriteFile(tmpJosn, data, 0644))
+		assert.NoError(t, os.WriteFile(tmpJSON, data, 0644))
 
-	cfg2, err := config.NewConfig(tmpJosn)
-	assert.NoError(t, err)
+		cfg2, err := NewConfig(tmpJSON)
+		assert.NoError(t, err)
 
-	assert.Equal(t, cfg.L1Config, cfg2.L1Config)
-	assert.Equal(t, cfg.L2Config, cfg2.L2Config)
-	assert.Equal(t, cfg.DBConfig, cfg2.DBConfig)
+		assert.Equal(t, cfg.L1Config, cfg2.L1Config)
+		assert.Equal(t, cfg.L2Config, cfg2.L2Config)
+		assert.Equal(t, cfg.DBConfig, cfg2.DBConfig)
+	})
+
+	t.Run("File Not Found", func(t *testing.T) {
+		_, err := NewConfig("non_existent_file.json")
+		assert.ErrorIs(t, err, os.ErrNotExist)
+	})
+
+	t.Run("Invalid JSON Content", func(t *testing.T) {
+		// Create a temporary file with invalid JSON content
+		tempFile, err := os.CreateTemp("", "invalid_json_config.json")
+		assert.NoError(t, err)
+		defer os.Remove(tempFile.Name())
+
+		_, err = tempFile.WriteString("{ invalid_json: ")
+		assert.NoError(t, err)
+
+		_, err = NewConfig(tempFile.Name())
+		assert.Error(t, err)
+	})
 }

bridge/config/relayer_config.go

@@ -30,9 +30,11 @@ type SenderConfig struct {
 	// The transaction type to use: LegacyTx, AccessListTx, DynamicFeeTx
 	TxType string `json:"tx_type"`
 	// The min balance set for check and set balance for sender's accounts.
-	MinBalance *big.Int `json:"min_balance,omitempty"`
+	MinBalance *big.Int `json:"min_balance"`
 	// The interval (in seconds) to check balance and top up sender's accounts
 	CheckBalanceTime uint64 `json:"check_balance_time"`
+	// The sender's pending count limit.
+	PendingLimit int `json:"pending_limit,omitempty"`
 }
 
 // RelayerConfig loads relayer configuration items.

bridge/go.mod

@@ -3,8 +3,11 @@ module scroll-tech/bridge
 go 1.18
 
 require (
+	github.com/agiledragon/gomonkey/v2 v2.9.0
 	github.com/orcaman/concurrent-map v1.0.0
+	github.com/orcaman/concurrent-map/v2 v2.0.1
 	github.com/scroll-tech/go-ethereum v1.10.14-0.20230321020420-127af384ed04
+	github.com/smartystreets/goconvey v1.8.0
 	github.com/stretchr/testify v1.8.2
 	github.com/urfave/cli/v2 v2.17.2-0.20221006022127-8f469abc00aa
 	golang.org/x/sync v0.1.0
@@ -20,22 +23,30 @@ require (
 	github.com/go-ole/go-ole v1.2.6 // indirect
 	github.com/go-stack/stack v1.8.1 // indirect
 	github.com/google/uuid v1.3.0 // indirect
+	github.com/gopherjs/gopherjs v1.17.2 // indirect
 	github.com/gorilla/websocket v1.5.0 // indirect
-	github.com/holiman/uint256 v1.2.0 // indirect
 	github.com/iden3/go-iden3-crypto v0.0.14 // indirect
+	github.com/jtolds/gls v4.20.0+incompatible // indirect
+	github.com/mattn/go-isatty v0.0.18 // indirect
+	github.com/mattn/go-runewidth v0.0.14 // 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/rivo/uniseg v0.4.4 // indirect
 	github.com/rjeczalik/notify v0.9.1 // indirect
+	github.com/rogpeppe/go-internal v1.10.0 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/scroll-tech/zktrie v0.5.2 // 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/smartystreets/assertions v1.13.1 // indirect
+	github.com/tklauser/go-sysconf v0.3.11 // indirect
+	github.com/tklauser/numcpus v0.6.0 // indirect
 	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
 	github.com/yusufpapurcu/wmi v1.2.2 // indirect
 	golang.org/x/crypto v0.7.0 // indirect
-	golang.org/x/sys v0.6.0 // indirect
+	golang.org/x/sys v0.7.0 // indirect
+	golang.org/x/text v0.9.0 // indirect
+	golang.org/x/time v0.3.0 // indirect
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
 	gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect

bridge/go.sum

@@ -1,5 +1,7 @@
 github.com/VictoriaMetrics/fastcache v1.6.0 h1:C/3Oi3EiBCqufydp1neRZkqcwmEiuRT9c3fqvvgKm5o=
 github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII=
+github.com/agiledragon/gomonkey/v2 v2.9.0 h1:PDiKKybR596O6FHW+RVSG0Z7uGCBNbmbUXh3uCNQ7Hc=
+github.com/agiledragon/gomonkey/v2 v2.9.0/go.mod h1:ap1AmDzcVOAz1YpeJ3TCzIgstoaWLA6jbbgxfB4w2iY=
 github.com/btcsuite/btcd v0.20.1-beta h1:Ik4hyJqN8Jfyv3S4AGBOmyouMsYE3EdYODkMbQjwPGw=
 github.com/btcsuite/btcd v0.20.1-beta/go.mod h1:wVuoA8VJLEcwgqHBwHmzLRazpKxTv13Px/pDuV7OomQ=
 github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f/go.mod h1:TdznJufoqS23FtqVCzL0ZqgP5MqXbb4fg/WgDys70nA=
@@ -33,13 +35,15 @@ github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5y
 github.com/golang/snappy v0.0.4 h1:yAGX7huGHXlcLOEtBnF4w7FQwA26wojNCwOYAEhLjQM=
 github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
 github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
+github.com/gopherjs/gopherjs v1.17.2 h1:fQnZVsXk8uxXIStYb0N4bGk7jeyTalG/wsZjQ25dO0g=
+github.com/gopherjs/gopherjs v1.17.2/go.mod h1:pRRIvn/QzFLrKfvEz3qUuEhtE/zLCWfreZ6J5gM2i+k=
 github.com/gorilla/websocket v1.5.0 h1:PPwGk2jz7EePpoHN/+ClbZu8SPxiqlu12wZP/3sWmnc=
 github.com/gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/hashicorp/go-bexpr v0.1.10 h1:9kuI5PFotCboP3dkDYFr/wi0gg0QVbSNz5oFRpxn4uE=
 github.com/hashicorp/golang-lru v0.5.5-0.20210104140557-80c98217689d h1:dg1dEPuWpEqDnvIw251EVy4zlP8gWbsGj4BsUKCRpYs=
 github.com/holiman/bloomfilter/v2 v2.0.3 h1:73e0e/V0tCydx14a0SCYS/EWCxgwLZ18CZcZKVu0fao=
 github.com/holiman/uint256 v1.2.0 h1:gpSYcPLWGv4sG43I2mVLiDZCNDh/EpGjSk8tmtxitHM=
-github.com/holiman/uint256 v1.2.0/go.mod h1:y4ga/t+u+Xwd7CpDgZESaRcWy0I7XMlTMA25ApIH5Jw=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
 github.com/huin/goupnp v1.0.3 h1:N8No57ls+MnjlB+JPiCVSOyy/ot7MJTqlo7rn+NYSqQ=
 github.com/iden3/go-iden3-crypto v0.0.14 h1:HQnFchY735JRNQxof6n/Vbyon4owj4+Ku+LNAamWV6c=
@@ -47,6 +51,8 @@ github.com/iden3/go-iden3-crypto v0.0.14/go.mod h1:dLpM4vEPJ3nDHzhWFXDjzkn1qHoBe
 github.com/jackpal/go-nat-pmp v1.0.2 h1:KzKSgb7qkJvOUTqYl9/Hg/me3pWgBmERKrTGD7BdWus=
 github.com/jessevdk/go-flags v0.0.0-20141203071132-1679536dcc89/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
 github.com/jrick/logrotate v1.0.0/go.mod h1:LNinyqDIJnpAur+b8yyulnQw/wDuN1+BYKlTRt3OuAQ=
+github.com/jtolds/gls v4.20.0+incompatible h1:xdiiI2gbIgH/gLH7ADydsJ1uDOEzR8yvV7C0MuV77Wo=
+github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
 github.com/kkdai/bstream v0.0.0-20161212061736-f391b8402d23/go.mod h1:J+Gs4SYgM6CZQHDETBtE9HaSEkGmuNXF86RwHhHUvq4=
 github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
@@ -55,8 +61,10 @@ 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=
 github.com/leanovate/gopter v0.2.9 h1:fQjYxZaynp97ozCzfOyOuAGOU4aU/z37zf/tOujFk7c=
 github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
-github.com/mattn/go-isatty v0.0.16 h1:bq3VjFmv/sOjHtdEhmkEV4x1AJtvUvOJ2PFAZ5+peKQ=
-github.com/mattn/go-runewidth v0.0.9 h1:Lm995f3rfxdpd6TSmuVCHVb/QhupuXlYr8sCI/QdE+0=
+github.com/mattn/go-isatty v0.0.18 h1:DOKFKCQ7FNG2L1rbrmstDN4QVRdS89Nkh85u68Uwp98=
+github.com/mattn/go-isatty v0.0.18/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
+github.com/mattn/go-runewidth v0.0.14 h1:+xnbZSEeDbOIg5/mE6JF0w6n9duR1l3/WmbinWVwUuU=
+github.com/mattn/go-runewidth v0.0.14/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
 github.com/mitchellh/mapstructure v1.5.0 h1:jeMsZIYE/09sWLaz43PL7Gy6RuMjD2eJVyuac5Z2hdY=
 github.com/mitchellh/mapstructure v1.5.0/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
 github.com/mitchellh/pointerstructure v1.2.0 h1:O+i9nHnXS3l/9Wu7r4NrEdwA2VFTicjUEN1uBnDo34A=
@@ -66,15 +74,21 @@ github.com/onsi/ginkgo v1.7.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+W
 github.com/onsi/gomega v1.4.3/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
 github.com/orcaman/concurrent-map v1.0.0 h1:I/2A2XPCb4IuQWcQhBhSwGfiuybl/J0ev9HDbW65HOY=
 github.com/orcaman/concurrent-map v1.0.0/go.mod h1:Lu3tH6HLW3feq74c2GC+jIMS/K2CFcDWnWD9XkenwhI=
+github.com/orcaman/concurrent-map/v2 v2.0.1 h1:jOJ5Pg2w1oeB6PeDurIYf6k9PQ+aTITr/6lP/L/zp6c=
+github.com/orcaman/concurrent-map/v2 v2.0.1/go.mod h1:9Eq3TG2oBe5FirmYWQfYO5iH1q0Jv47PLaNK++uCdOM=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/tsdb v0.7.1 h1:YZcsG11NqnK4czYLrWd9mpEuAJIHVQLwdrleYfszMAA=
 github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0 h1:OdAsTTz6OkFY5QxjkYwrChwuRruF69c169dPK26NUlk=
 github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
+github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
+github.com/rivo/uniseg v0.4.4 h1:8TfxU8dW6PdqD27gjM8MVNuicgxIjxpm4K7x4jp8sis=
+github.com/rivo/uniseg v0.4.4/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
 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 v1.9.0 h1:73kH8U+JUqXU8lRuOHeVHaa/SZPifC7BkcraZVejAe8=
+github.com/rogpeppe/go-internal v1.10.0 h1:TMyTOH3F/DB16zRVcYyreMH6GnZZrwQVAoYjRBZyWFQ=
+github.com/rogpeppe/go-internal v1.10.0/go.mod h1:UQnix2H7Ngw/k4C5ijL5+65zddjncjaFoBhdsK/akog=
 github.com/rs/cors v1.7.0 h1:+88SsELBHx5r+hZ8TCkggzSstaWNbDvThkVK8H6f9ik=
 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=
@@ -84,6 +98,12 @@ github.com/scroll-tech/zktrie v0.5.2 h1:U34jPXMLGOlRHfdvYp5VVgOcC0RuPeJmcS3bWotC
 github.com/scroll-tech/zktrie v0.5.2/go.mod h1:XvNo7vAk8yxNyTjBDj5WIiFzYW4bx/gJ78+NK6Zn6Uk=
 github.com/shirou/gopsutil v3.21.11+incompatible h1:+1+c1VGhc88SSonWP6foOcLhvnKlUeu/erjjvaPEYiI=
 github.com/shirou/gopsutil v3.21.11+incompatible/go.mod h1:5b4v6he4MtMOwMlS0TUMTu2PcXUg8+E1lC7eC3UO/RA=
+github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
+github.com/smartystreets/assertions v1.13.1 h1:Ef7KhSmjZcK6AVf9YbJdvPYG9avaF0ZxudX+ThRdWfU=
+github.com/smartystreets/assertions v1.13.1/go.mod h1:cXr/IwVfSo/RbCSPhoAPv73p3hlSdrBH/b3SdnW/LMY=
+github.com/smartystreets/goconvey v1.6.4/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9QV7WQ/tjFTllLA=
+github.com/smartystreets/goconvey v1.8.0 h1:Oi49ha/2MURE0WexF052Z0m+BNSGirfjg5RL+JXWq3w=
+github.com/smartystreets/goconvey v1.8.0/go.mod h1:EdX8jtrTIj26jmjCOVNMVSIYAtgexqXKHOXW2Dx9JLg=
 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 v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
@@ -93,10 +113,10 @@ github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO
 github.com/stretchr/testify v1.8.2 h1:+h33VjcLVPDHtOdpUCuF+7gSuG3yGIftsP1YvFihtJ8=
 github.com/stretchr/testify v1.8.2/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
 github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7 h1:epCh84lMvA70Z7CTTCmYQn2CKbY8j86K7/FAIr141uY=
-github.com/tklauser/go-sysconf v0.3.10 h1:IJ1AZGZRWbY8T5Vfk04D9WOA5WSejdflXxP03OUqALw=
-github.com/tklauser/go-sysconf v0.3.10/go.mod h1:C8XykCvCb+Gn0oNCWPIlcb0RuglQTYaQ2hGm7jmxEFk=
-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/tklauser/go-sysconf v0.3.11 h1:89WgdJhk5SNwJfu+GKyYveZ4IaJ7xAkecBo+KdJV0CM=
+github.com/tklauser/go-sysconf v0.3.11/go.mod h1:GqXfhXY3kiPa0nAXPDIQIWzJbMCB7AmcWpGR8lSZfqI=
+github.com/tklauser/numcpus v0.6.0 h1:kebhY2Qt+3U6RNK7UqpYNA+tJ23IBEGKkB7JQBfDYms=
+github.com/tklauser/numcpus v0.6.0/go.mod h1:FEZLMke0lhOUG6w2JadTzp0a+Nl8PF/GFkQ5UVIcaL4=
 github.com/tyler-smith/go-bip39 v1.1.0 h1:5eUemwrMargf3BSLRRCalXT93Ns6pQJIjYQN2nyfOP8=
 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=
@@ -105,20 +125,27 @@ github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673/go.mod h1:N3UwUGtsr
 github.com/yusufpapurcu/wmi v1.2.2 h1:KBNDSne4vP5mbSWnJbO+51IMOXJB67QiYCSBrubbPRg=
 github.com/yusufpapurcu/wmi v1.2.2/go.mod h1:SBZ9tNy3G9/m5Oi98Zks0QjeHVDvuK0qfxQmPyzfmi0=
 golang.org/x/crypto v0.0.0-20170930174604-9419663f5a44/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.7.0 h1:AvwMYaRytfdeVt3u6mLaxYtErKYjxA2OXjJ1HHq6t3A=
 golang.org/x/crypto v0.7.0/go.mod h1:pYwdfH91IfpZVANVyUOhSIPZaFoJGxTFbZhFTx+dXZU=
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.1.0 h1:wsuoTGHzEhffawBOhz5CYhcrV4IdKZbEyZjBMuTp12o=
 golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20220128215802-99c3d69c2c27/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.6.0 h1:MVltZSvRTcU2ljQOhs94SXPftV6DCNnZViHeQps87pQ=
+golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.7.0 h1:3jlCCIQZPdOYu1h8BkNvLz8Kgwtae2cagcG/VamtZRU=
+golang.org/x/sys v0.7.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.8.0 h1:57P1ETyNKtuIjB4SRd15iJxuhj8Gc416Y78H3qgMh68=
-golang.org/x/time v0.0.0-20220922220347-f3bd1da661af h1:Yx9k8YCG3dvF87UAn2tu2HQLf2dt/eR1bXxpLMWeH+Y=
+golang.org/x/text v0.9.0 h1:2sjJmO8cDvYveuX97RDLsxlyUxLl+GHoLxBiRdHllBE=
+golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
+golang.org/x/time v0.3.0 h1:rg5rLMjNzMS1RkNLzCG38eapWhnYLFYXDXj2gOlr8j4=
+golang.org/x/time v0.3.0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
+golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=

bridge/l1/backend.go

@@ -1,55 +0,0 @@
-package l1
-
-import (
-	"context"
-
-	"github.com/scroll-tech/go-ethereum/ethclient"
-
-	"scroll-tech/database"
-
-	"scroll-tech/bridge/config"
-)
-
-// Backend manage the resources and services of L1 backend.
-// The backend should monitor events in layer 1 and relay transactions to layer 2
-type Backend struct {
-	cfg     *config.L1Config
-	watcher *Watcher
-	relayer *Layer1Relayer
-	orm     database.OrmFactory
-}
-
-// New returns a new instance of Backend.
-func New(ctx context.Context, cfg *config.L1Config, orm database.OrmFactory) (*Backend, error) {
-	client, err := ethclient.Dial(cfg.Endpoint)
-	if err != nil {
-		return nil, err
-	}
-
-	relayer, err := NewLayer1Relayer(ctx, orm, cfg.RelayerConfig)
-	if err != nil {
-		return nil, err
-	}
-
-	watcher := NewWatcher(ctx, client, cfg.StartHeight, cfg.Confirmations, cfg.L1MessengerAddress, cfg.L1MessageQueueAddress, cfg.ScrollChainContractAddress, orm)
-
-	return &Backend{
-		cfg:     cfg,
-		watcher: watcher,
-		relayer: relayer,
-		orm:     orm,
-	}, nil
-}
-
-// Start Backend module.
-func (l1 *Backend) Start() error {
-	l1.watcher.Start()
-	l1.relayer.Start()
-	return nil
-}
-
-// Stop Backend module.
-func (l1 *Backend) Stop() {
-	l1.watcher.Stop()
-	l1.relayer.Stop()
-}

bridge/l1/l1_test.go

@@ -1,46 +0,0 @@
-package l1
-
-import (
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-
-	"scroll-tech/common/docker"
-
-	"scroll-tech/bridge/config"
-)
-
-var (
-	// config
-	cfg *config.Config
-
-	// docker consider handler.
-	base *docker.App
-)
-
-func TestMain(m *testing.M) {
-	base = docker.NewDockerApp()
-
-	m.Run()
-
-	base.Free()
-}
-
-func setupEnv(t *testing.T) {
-	// Load config.
-	var err error
-	cfg, err = config.NewConfig("../config.json")
-	assert.NoError(t, err)
-	base.RunImages(t)
-
-	cfg.L2Config.RelayerConfig.SenderConfig.Endpoint = base.L1GethEndpoint()
-	cfg.L1Config.RelayerConfig.SenderConfig.Endpoint = base.L2GethEndpoint()
-	cfg.DBConfig.DSN = base.DBEndpoint()
-}
-
-func TestL1(t *testing.T) {
-	setupEnv(t)
-
-	t.Run("testCreateNewL1Relayer", testCreateNewL1Relayer)
-	t.Run("testStartWatcher", testStartWatcher)
-}

bridge/l1/relayer_test.go

@@ -1,27 +0,0 @@
-package l1
-
-import (
-	"context"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-
-	"scroll-tech/database/migrate"
-
-	"scroll-tech/database"
-)
-
-// testCreateNewRelayer test create new relayer instance and stop
-func testCreateNewL1Relayer(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 := NewLayer1Relayer(context.Background(), db, cfg.L2Config.RelayerConfig)
-	assert.NoError(t, err)
-	defer relayer.Stop()
-
-	relayer.Start()
-}

bridge/l1/watcher_test.go

@@ -1,29 +0,0 @@
-package l1
-
-import (
-	"context"
-	"testing"
-
-	"github.com/scroll-tech/go-ethereum/ethclient"
-	"github.com/stretchr/testify/assert"
-
-	"scroll-tech/database"
-	"scroll-tech/database/migrate"
-)
-
-func testStartWatcher(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()
-
-	client, err := ethclient.Dial(base.L1GethEndpoint())
-	assert.NoError(t, err)
-
-	l1Cfg := cfg.L1Config
-
-	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

@@ -1,76 +0,0 @@
-package l2
-
-import (
-	"context"
-
-	"github.com/scroll-tech/go-ethereum/ethclient"
-	"github.com/scroll-tech/go-ethereum/rpc"
-
-	"scroll-tech/database"
-
-	"scroll-tech/bridge/config"
-)
-
-// 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
-	watcher       *WatcherClient
-	relayer       *Layer2Relayer
-	batchProposer *BatchProposer
-	orm           database.OrmFactory
-}
-
-// New returns a new instance of Backend.
-func New(ctx context.Context, cfg *config.L2Config, orm database.OrmFactory) (*Backend, error) {
-	client, err := ethclient.Dial(cfg.Endpoint)
-	if err != nil {
-		return nil, err
-	}
-
-	// 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, cfg.WithdrawTrieRootSlot, orm)
-
-	relayer, err := NewLayer2Relayer(ctx, client, orm, cfg.RelayerConfig)
-	if err != nil {
-		return nil, err
-	}
-
-	batchProposer := NewBatchProposer(ctx, cfg.BatchProposerConfig, relayer, orm)
-
-	return &Backend{
-		cfg:           cfg,
-		watcher:       watcher,
-		relayer:       relayer,
-		batchProposer: batchProposer,
-		orm:           orm,
-	}, nil
-}
-
-// Start Backend module.
-func (l2 *Backend) Start() error {
-	l2.watcher.Start()
-	l2.relayer.Start()
-	l2.batchProposer.Start()
-	return nil
-}
-
-// Stop Backend module.
-func (l2 *Backend) Stop() {
-	l2.batchProposer.Stop()
-	l2.relayer.Stop()
-	l2.watcher.Stop()
-}
-
-// APIs collect API modules.
-func (l2 *Backend) APIs() []rpc.API {
-	return []rpc.API{
-		{
-			Namespace: "l2",
-			Version:   "1.0",
-			Service:   WatcherAPI(l2.watcher),
-			Public:    true,
-		},
-	}
-}

bridge/l2/batch_proposer_test.go

@@ -1,102 +0,0 @@
-package l2
-
-import (
-	"context"
-	"fmt"
-	"math"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-
-	"scroll-tech/database"
-	"scroll-tech/database/migrate"
-
-	"scroll-tech/bridge/config"
-
-	"scroll-tech/common/types"
-)
-
-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()
-
-	// Insert traces into db.
-	assert.NoError(t, db.InsertWrappedBlocks([]*types.WrappedBlock{wrappedBlock1}))
-
-	l2cfg := cfg.L2Config
-	wc := NewL2WatcherClient(context.Background(), l2Cli, l2cfg.Confirmations, l2cfg.L2MessengerAddress, l2cfg.L2MessageQueueAddress, l2cfg.WithdrawTrieRootSlot, db)
-	wc.Start()
-	defer wc.Stop()
-
-	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,
-	}, relayer, db)
-	proposer.tryProposeBatch()
-
-	infos, err := db.GetUnbatchedL2Blocks(map[string]interface{}{},
-		fmt.Sprintf("order by number ASC LIMIT %d", 100))
-	assert.NoError(t, err)
-	assert.Equal(t, 0, len(infos))
-
-	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.InsertWrappedBlocks([]*types.WrappedBlock{wrappedBlock2}))
-
-	// 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/check_trace.go

@@ -1,99 +0,0 @@
-package l2
-
-import (
-	"fmt"
-
-	"golang.org/x/sync/errgroup"
-
-	"github.com/scroll-tech/go-ethereum/core/types"
-	"github.com/scroll-tech/go-ethereum/core/vm"
-	"github.com/scroll-tech/go-ethereum/log"
-)
-
-//nolint:unused
-func blockTraceIsValid(trace *types.BlockTrace) bool {
-	if trace == nil {
-		log.Warn("block trace is empty")
-		return false
-	}
-	flag := true
-	for _, tx := range trace.ExecutionResults {
-		flag = structLogResIsValid(tx.StructLogs) && flag
-	}
-	return flag
-}
-
-//nolint:unused
-func structLogResIsValid(txLogs []*types.StructLogRes) bool {
-	res := true
-	for i := 0; i < len(txLogs); i++ {
-		txLog := txLogs[i]
-		flag := true
-		switch vm.StringToOp(txLog.Op) {
-		case vm.CALL, vm.CALLCODE:
-			flag = codeIsValid(txLog, 2) && flag
-			flag = stateIsValid(txLog, 2) && flag
-		case vm.DELEGATECALL, vm.STATICCALL:
-			flag = codeIsValid(txLog, 2) && flag
-		case vm.CREATE, vm.CREATE2:
-			flag = stateIsValid(txLog, 1) && flag
-		case vm.SLOAD, vm.SSTORE, vm.SELFBALANCE:
-			flag = stateIsValid(txLog, 1) && flag
-		case vm.SELFDESTRUCT:
-			flag = stateIsValid(txLog, 2) && flag
-		case vm.EXTCODEHASH, vm.BALANCE:
-			flag = stateIsValid(txLog, 1) && flag
-		}
-		res = res && flag
-	}
-
-	return res
-}
-
-//nolint:unused
-func codeIsValid(txLog *types.StructLogRes, n int) bool {
-	extraData := txLog.ExtraData
-	if extraData == nil {
-		log.Warn("extraData is empty", "pc", txLog.Pc, "opcode", txLog.Op)
-		return false
-	} else if len(extraData.CodeList) < n {
-		log.Warn("code list is too short", "opcode", txLog.Op, "expect length", n, "actual length", len(extraData.CodeList))
-		return false
-	}
-	return true
-}
-
-//nolint:unused
-func stateIsValid(txLog *types.StructLogRes, n int) bool {
-	extraData := txLog.ExtraData
-	if extraData == nil {
-		log.Warn("extraData is empty", "pc", txLog.Pc, "opcode", txLog.Op)
-		return false
-	} else if len(extraData.StateList) < n {
-		log.Warn("stateList list is too short", "opcode", txLog.Op, "expect length", n, "actual length", len(extraData.StateList))
-		return false
-	}
-	return true
-}
-
-// TraceHasUnsupportedOpcodes check if exist unsupported opcodes
-func TraceHasUnsupportedOpcodes(opcodes map[string]struct{}, trace *types.BlockTrace) bool {
-	if trace == nil {
-		return false
-	}
-	eg := errgroup.Group{}
-	for _, res := range trace.ExecutionResults {
-		res := res
-		eg.Go(func() error {
-			for _, lg := range res.StructLogs {
-				if _, ok := opcodes[lg.Op]; ok {
-					return fmt.Errorf("unsupported opcde: %s", lg.Op)
-				}
-			}
-			return nil
-		})
-	}
-
-	err := eg.Wait()
-	return err != nil
-}

bridge/l2/relayer_test.go

@@ -1,214 +0,0 @@
-package l2
-
-import (
-	"context"
-	"encoding/json"
-	"math/big"
-	"os"
-	"strconv"
-	"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/database"
-	"scroll-tech/database/migrate"
-)
-
-var (
-	templateL2Message = []*types.L2Message{
-		{
-			Nonce:      1,
-			Height:     1,
-			Sender:     "0x596a746661dbed76a84556111c2872249b070e15",
-			Value:      "100",
-			Target:     "0x2c73620b223808297ea734d946813f0dd78eb8f7",
-			Calldata:   "testdata",
-			Layer2Hash: "hash0",
-		},
-	}
-)
-
-func testCreateNewRelayer(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)
-	defer relayer.Stop()
-
-	relayer.Start()
-}
-
-func testL2RelayerProcessSaveEvents(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(), l2Cli, db, l2Cfg.RelayerConfig)
-	assert.NoError(t, err)
-	defer relayer.Stop()
-
-	err = db.SaveL2Messages(context.Background(), templateL2Message)
-	assert.NoError(t, err)
-
-	traces := []*types.WrappedBlock{
-		{
-			Header: &geth_types.Header{
-				Number: big.NewInt(int64(templateL2Message[0].Height)),
-			},
-			Transactions:     nil,
-			WithdrawTrieRoot: common.Hash{},
-		},
-		{
-			Header: &geth_types.Header{
-				Number: big.NewInt(int64(templateL2Message[0].Height + 1)),
-			},
-			Transactions:     nil,
-			WithdrawTrieRoot: common.Hash{},
-		},
-	}
-	assert.NoError(t, db.InsertWrappedBlocks(traces))
-
-	dbTx, err := db.Beginx()
-	assert.NoError(t, err)
-	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)
-
-	relayer.ProcessSavedEvents()
-
-	msg, err := db.GetL2MessageByNonce(templateL2Message[0].Nonce)
-	assert.NoError(t, err)
-	assert.Equal(t, types.MsgSubmitted, msg.Status)
-}
-
-func testL2RelayerProcessCommittedBatches(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(), l2Cli, db, l2Cfg.RelayerConfig)
-	assert.NoError(t, err)
-	defer relayer.Stop()
-
-	dbTx, err := db.Beginx()
-	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(), 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.UpdateProofByHash(context.Background(), batchHash, tProof, tInstanceCommitments, 100)
-	assert.NoError(t, err)
-	err = db.UpdateProvingStatus(batchHash, types.ProvingTaskVerified)
-	assert.NoError(t, err)
-
-	relayer.ProcessCommittedBatches()
-
-	status, err := db.GetRollupStatus(batchHash)
-	assert.NoError(t, err)
-	assert.Equal(t, types.RollupFinalizing, status)
-}
-
-func testL2RelayerSkipBatches(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(), l2Cli, db, l2Cfg.RelayerConfig)
-	assert.NoError(t, err)
-	defer relayer.Stop()
-
-	createBatch := func(rollupStatus types.RollupStatus, provingStatus types.ProvingStatus, index uint64) string {
-		dbTx, err := db.Beginx()
-		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(), 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.UpdateProofByHash(context.Background(), batchHash, tProof, tInstanceCommitments, 100)
-		assert.NoError(t, err)
-		err = db.UpdateProvingStatus(batchHash, provingStatus)
-		assert.NoError(t, err)
-
-		return batchHash
-	}
-
-	skipped := []string{
-		createBatch(types.RollupCommitted, types.ProvingTaskSkipped, 1),
-		createBatch(types.RollupCommitted, types.ProvingTaskFailed, 2),
-	}
-
-	notSkipped := []string{
-		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),
-	}
-
-	relayer.ProcessCommittedBatches()
-
-	for _, id := range skipped {
-		status, err := db.GetRollupStatus(id)
-		assert.NoError(t, err)
-		assert.Equal(t, types.RollupFinalizationSkipped, status)
-	}
-
-	for _, id := range notSkipped {
-		status, err := db.GetRollupStatus(id)
-		assert.NoError(t, err)
-		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
-	wrappedBlock := &types.WrappedBlock{}
-	err = json.Unmarshal(templateBlockTrace, wrappedBlock)
-	assert.NoError(t, err)
-	wrappedBlock.Header.ParentHash = common.HexToHash("0x" + strconv.FormatUint(index+1, 16))
-	parentBatch := &types.BlockBatch{
-		Index: index,
-		Hash:  "0x0000000000000000000000000000000000000000",
-	}
-	return types.NewBatchData(parentBatch, []*types.WrappedBlock{wrappedBlock}, nil)
-}

bridge/l2/watcher_api.go

@@ -1,5 +0,0 @@
-package l2
-
-// WatcherAPI watcher api service
-type WatcherAPI interface {
-}

bridge/l2/watcher_test.go

@@ -1,211 +0,0 @@
-package l2
-
-import (
-	"context"
-	"crypto/ecdsa"
-	"math/big"
-	"strconv"
-	"testing"
-	"time"
-
-	"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/ethclient"
-	"github.com/scroll-tech/go-ethereum/rpc"
-	"github.com/stretchr/testify/assert"
-
-	"scroll-tech/common/types"
-
-	"scroll-tech/bridge/mock_bridge"
-	"scroll-tech/bridge/sender"
-
-	"scroll-tech/database"
-	"scroll-tech/database/migrate"
-)
-
-func testCreateNewWatcherAndStop(t *testing.T) {
-	// Create db handler and reset db.
-	l2db, err := database.NewOrmFactory(cfg.DBConfig)
-	assert.NoError(t, err)
-	assert.NoError(t, migrate.ResetDB(l2db.GetDB().DB))
-	defer l2db.Close()
-
-	l2cfg := cfg.L2Config
-	rc := NewL2WatcherClient(context.Background(), l2Cli, l2cfg.Confirmations, l2cfg.L2MessengerAddress, l2cfg.L2MessageQueueAddress, l2cfg.WithdrawTrieRootSlot, l2db)
-	rc.Start()
-	defer rc.Stop()
-
-	l1cfg := cfg.L1Config
-	l1cfg.RelayerConfig.SenderConfig.Confirmations = rpc.LatestBlockNumber
-	newSender, err := sender.NewSender(context.Background(), l1cfg.RelayerConfig.SenderConfig, l1cfg.RelayerConfig.MessageSenderPrivateKeys)
-	assert.NoError(t, err)
-
-	// Create several transactions and commit to block
-	numTransactions := 3
-	toAddress := common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
-	for i := 0; i < numTransactions; i++ {
-		_, err = newSender.SendTransaction(strconv.Itoa(1000+i), &toAddress, big.NewInt(1000000000), nil, 0)
-		assert.NoError(t, err)
-		<-newSender.ConfirmChan()
-	}
-
-	blockNum, err := l2Cli.BlockNumber(context.Background())
-	assert.NoError(t, err)
-	assert.GreaterOrEqual(t, blockNum, uint64(numTransactions))
-}
-
-func testMonitorBridgeContract(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
-	wc := NewL2WatcherClient(context.Background(), l2Cli, l2cfg.Confirmations, l2cfg.L2MessengerAddress, l2cfg.L2MessageQueueAddress, l2cfg.WithdrawTrieRootSlot, db)
-	wc.Start()
-	defer wc.Stop()
-
-	previousHeight, err := l2Cli.BlockNumber(context.Background())
-	assert.NoError(t, err)
-
-	auth := prepareAuth(t, l2Cli, cfg.L2Config.RelayerConfig.MessageSenderPrivateKeys[0])
-
-	// deploy mock bridge
-	_, tx, instance, err := mock_bridge.DeployMockBridgeL2(auth, l2Cli)
-	assert.NoError(t, err)
-	address, err := bind.WaitDeployed(context.Background(), l2Cli, tx)
-	assert.NoError(t, err)
-
-	rc := prepareWatcherClient(l2Cli, db, address)
-	rc.Start()
-	defer rc.Stop()
-
-	// Call mock_bridge instance sendMessage to trigger emit events
-	toAddress := common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
-	message := []byte("testbridgecontract")
-	fee := big.NewInt(0)
-	gasLimit := big.NewInt(1)
-
-	tx, err = instance.SendMessage(auth, toAddress, fee, message, gasLimit)
-	assert.NoError(t, err)
-	receipt, err := bind.WaitMined(context.Background(), l2Cli, tx)
-	if receipt.Status != geth_types.ReceiptStatusSuccessful || err != nil {
-		t.Fatalf("Call failed")
-	}
-
-	// extra block mined
-	toAddress = common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
-	message = []byte("testbridgecontract")
-	tx, err = instance.SendMessage(auth, toAddress, fee, message, gasLimit)
-	assert.NoError(t, err)
-	receipt, err = bind.WaitMined(context.Background(), l2Cli, tx)
-	if receipt.Status != geth_types.ReceiptStatusSuccessful || err != nil {
-		t.Fatalf("Call failed")
-	}
-
-	// wait for dealing time
-	<-time.After(6 * time.Second)
-
-	var latestHeight uint64
-	latestHeight, err = l2Cli.BlockNumber(context.Background())
-	assert.NoError(t, err)
-	t.Log("Latest height is", latestHeight)
-
-	// check if we successfully stored events
-	height, err := db.GetLayer2LatestWatchedHeight()
-	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": types.MsgPending})
-	assert.NoError(t, err)
-	assert.Equal(t, 2, len(msgs))
-}
-
-func testFetchMultipleSentMessageInOneBlock(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()
-
-	previousHeight, err := l2Cli.BlockNumber(context.Background()) // shallow the global previousHeight
-	assert.NoError(t, err)
-
-	auth := prepareAuth(t, l2Cli, cfg.L2Config.RelayerConfig.MessageSenderPrivateKeys[0])
-
-	_, trx, instance, err := mock_bridge.DeployMockBridgeL2(auth, l2Cli)
-	assert.NoError(t, err)
-	address, err := bind.WaitDeployed(context.Background(), l2Cli, trx)
-	assert.NoError(t, err)
-
-	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 *geth_types.Transaction
-
-	for i := 0; i < numTransactions; i++ {
-		addr := common.HexToAddress("0x1c5a77d9fa7ef466951b2f01f724bca3a5820b63")
-		nonce, nounceErr := l2Cli.PendingNonceAt(context.Background(), addr)
-		assert.NoError(t, nounceErr)
-		auth.Nonce = big.NewInt(int64(nonce))
-		toAddress := common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
-		message := []byte("testbridgecontract")
-		fee := big.NewInt(0)
-		gasLimit := big.NewInt(1)
-		tx, err = instance.SendMessage(auth, toAddress, fee, message, gasLimit)
-		assert.NoError(t, err)
-	}
-
-	receipt, err := bind.WaitMined(context.Background(), l2Cli, tx)
-	if receipt.Status != geth_types.ReceiptStatusSuccessful || err != nil {
-		t.Fatalf("Call failed")
-	}
-
-	// extra block mined
-	addr := common.HexToAddress("0x1c5a77d9fa7ef466951b2f01f724bca3a5820b63")
-	nonce, nounceErr := l2Cli.PendingNonceAt(context.Background(), addr)
-	assert.NoError(t, nounceErr)
-	auth.Nonce = big.NewInt(int64(nonce))
-	toAddress := common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
-	message := []byte("testbridgecontract")
-	fee := big.NewInt(0)
-	gasLimit := big.NewInt(1)
-	tx, err = instance.SendMessage(auth, toAddress, fee, message, gasLimit)
-	assert.NoError(t, err)
-	receipt, err = bind.WaitMined(context.Background(), l2Cli, tx)
-	if receipt.Status != geth_types.ReceiptStatusSuccessful || err != nil {
-		t.Fatalf("Call failed")
-	}
-
-	// wait for dealing time
-	<-time.After(6 * time.Second)
-
-	// check if we successfully stored events
-	height, err := db.GetLayer2LatestWatchedHeight()
-	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": types.MsgPending})
-	assert.NoError(t, err)
-	assert.Equal(t, 5, len(msgs))
-}
-
-func prepareWatcherClient(l2Cli *ethclient.Client, db database.OrmFactory, contractAddr common.Address) *WatcherClient {
-	confirmations := rpc.LatestBlockNumber
-	return NewL2WatcherClient(context.Background(), l2Cli, confirmations, contractAddr, contractAddr, common.Hash{}, db)
-}
-
-func prepareAuth(t *testing.T, l2Cli *ethclient.Client, privateKey *ecdsa.PrivateKey) *bind.TransactOpts {
-	auth, err := bind.NewKeyedTransactorWithChainID(privateKey, big.NewInt(53077))
-	assert.NoError(t, err)
-	auth.Value = big.NewInt(0) // in wei
-	assert.NoError(t, err)
-	auth.GasPrice, err = l2Cli.SuggestGasPrice(context.Background())
-	assert.NoError(t, err)
-	return auth
-}

bridge/relayer/l1_relayer.go

@@ -1,10 +1,9 @@
-package l1
+package relayer
 
 import (
 	"context"
 	"errors"
 	"math/big"
-	"time"
 
 	// not sure if this will make problems when relay with l1geth
 
@@ -15,7 +14,6 @@ import (
 	geth_metrics "github.com/scroll-tech/go-ethereum/metrics"
 
 	"scroll-tech/common/types"
-	"scroll-tech/common/utils"
 
 	"scroll-tech/database"
 
@@ -31,14 +29,6 @@ var (
 	bridgeL1MsgsRelayedConfirmedTotalCounter = geth_metrics.NewRegisteredCounter("bridge/l1/msgs/relayed/confirmed/total", metrics.ScrollRegistry)
 )
 
-const (
-	gasPriceDiffPrecision = 1000000
-
-	defaultGasPriceDiff = 50000 // 5%
-
-	defaultMessageRelayMinGasLimit = 130000 // should be enough for both ERC20 and ETH relay
-)
-
 // Layer1Relayer is responsible for
 //  1. fetch pending L1Message from db
 //  2. relay pending message to layer 2 node
@@ -53,11 +43,9 @@ type Layer1Relayer struct {
 
 	// channel used to communicate with transaction sender
 	messageSender  *sender.Sender
-	messageCh      <-chan *sender.Confirmation
 	l2MessengerABI *abi.ABI
 
 	gasOracleSender *sender.Sender
-	gasOracleCh     <-chan *sender.Confirmation
 	l1GasOracleABI  *abi.ABI
 
 	minGasLimitForMessageRelay uint64
@@ -65,8 +53,6 @@ type Layer1Relayer struct {
 	lastGasPrice uint64
 	minGasPrice  uint64
 	gasPriceDiff uint64
-
-	stopCh chan struct{}
 }
 
 // NewLayer1Relayer will return a new instance of Layer1RelayerClient
@@ -96,21 +82,19 @@ func NewLayer1Relayer(ctx context.Context, db database.OrmFactory, cfg *config.R
 		gasPriceDiff = defaultGasPriceDiff
 	}
 
-	minGasLimitForMessageRelay := uint64(defaultMessageRelayMinGasLimit)
+	minGasLimitForMessageRelay := uint64(defaultL1MessageRelayMinGasLimit)
 	if cfg.MessageRelayMinGasLimit != 0 {
 		minGasLimitForMessageRelay = cfg.MessageRelayMinGasLimit
 	}
 
-	return &Layer1Relayer{
+	l1Relayer := &Layer1Relayer{
 		ctx: ctx,
 		db:  db,
 
 		messageSender:  messageSender,
-		messageCh:      messageSender.ConfirmChan(),
 		l2MessengerABI: bridge_abi.L2ScrollMessengerABI,
 
 		gasOracleSender: gasOracleSender,
-		gasOracleCh:     gasOracleSender.ConfirmChan(),
 		l1GasOracleABI:  bridge_abi.L1GasPriceOracleABI,
 
 		minGasLimitForMessageRelay: minGasLimitForMessageRelay,
@@ -118,9 +102,11 @@ func NewLayer1Relayer(ctx context.Context, db database.OrmFactory, cfg *config.R
 		minGasPrice:  minGasPrice,
 		gasPriceDiff: gasPriceDiff,
 
-		cfg:    cfg,
-		stopCh: make(chan struct{}),
-	}, nil
+		cfg: cfg,
+	}
+
+	go l1Relayer.handleConfirmLoop(ctx)
+	return l1Relayer, nil
 }
 
 // ProcessSavedEvents relays saved un-processed cross-domain transactions to desired blockchain
@@ -138,7 +124,7 @@ func (r *Layer1Relayer) ProcessSavedEvents() {
 
 	for _, msg := range msgs {
 		if err = r.processSavedEvent(msg); err != nil {
-			if !errors.Is(err, sender.ErrNoAvailableAccount) {
+			if !errors.Is(err, sender.ErrNoAvailableAccount) && !errors.Is(err, sender.ErrFullPending) {
 				log.Error("failed to process event", "msg.msgHash", msg.MsgHash, "err", err)
 			}
 			return
@@ -153,7 +139,7 @@ func (r *Layer1Relayer) processSavedEvent(msg *types.L1Message) error {
 	if err != nil && err.Error() == "execution reverted: Message expired" {
 		return r.db.UpdateLayer1Status(r.ctx, msg.MsgHash, types.MsgExpired)
 	}
-	if err != nil && err.Error() == "execution reverted: Message successfully executed" {
+	if err != nil && err.Error() == "execution reverted: Message was already successfully executed" {
 		return r.db.UpdateLayer1Status(r.ctx, msg.MsgHash, types.MsgConfirmed)
 	}
 	if err != nil {
@@ -203,7 +189,7 @@ func (r *Layer1Relayer) ProcessGasPriceOracle() {
 
 			hash, err := r.gasOracleSender.SendTransaction(block.Hash, &r.cfg.GasPriceOracleContractAddress, big.NewInt(0), data, 0)
 			if err != nil {
-				if !errors.Is(err, sender.ErrNoAvailableAccount) {
+				if !errors.Is(err, sender.ErrNoAvailableAccount) && !errors.Is(err, sender.ErrFullPending) {
 					log.Error("Failed to send setL1BaseFee tx to layer2 ", "block.Hash", block.Hash, "block.Height", block.Number, "err", err)
 				}
 				return
@@ -220,61 +206,43 @@ func (r *Layer1Relayer) ProcessGasPriceOracle() {
 	}
 }
 
-// Start the relayer process
-func (r *Layer1Relayer) Start() {
-	go func() {
-		ctx, cancel := context.WithCancel(r.ctx)
-
-		go utils.Loop(ctx, 2*time.Second, r.ProcessSavedEvents)
-		go utils.Loop(ctx, 2*time.Second, r.ProcessGasPriceOracle)
-
-		go func(ctx context.Context) {
-			for {
-				select {
-				case <-ctx.Done():
-					return
-				case cfm := <-r.messageCh:
-					bridgeL1MsgsRelayedConfirmedTotalCounter.Inc(1)
-					if !cfm.IsSuccessful {
-						err := r.db.UpdateLayer1StatusAndLayer2Hash(r.ctx, cfm.ID, types.MsgRelayFailed, cfm.TxHash.String())
-						if err != nil {
-							log.Warn("UpdateLayer1StatusAndLayer2Hash failed", "err", err)
-						}
-						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)
-					}
+func (r *Layer1Relayer) handleConfirmLoop(ctx context.Context) {
+	for {
+		select {
+		case <-ctx.Done():
+			return
+		case cfm := <-r.messageSender.ConfirmChan():
+			bridgeL1MsgsRelayedConfirmedTotalCounter.Inc(1)
+			if !cfm.IsSuccessful {
+				err := r.db.UpdateLayer1StatusAndLayer2Hash(r.ctx, cfm.ID, types.MsgRelayFailed, cfm.TxHash.String())
+				if err != nil {
+					log.Warn("UpdateLayer1StatusAndLayer2Hash failed", "err", err)
 				}
+				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)
 			}
-		}(ctx)
-
-		<-r.stopCh
-		cancel()
-	}()
-}
-
-// Stop the relayer module, for a graceful shutdown.
-func (r *Layer1Relayer) Stop() {
-	close(r.stopCh)
+		case cfm := <-r.gasOracleSender.ConfirmChan():
+			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)
+			}
+		}
+	}
 }

bridge/relayer/l1_relayer_test.go

@@ -0,0 +1,262 @@
+package relayer
+
+import (
+	"context"
+	"errors"
+	"math/big"
+	"testing"
+
+	"github.com/agiledragon/gomonkey/v2"
+	"github.com/scroll-tech/go-ethereum/common"
+	"github.com/smartystreets/goconvey/convey"
+
+	"github.com/stretchr/testify/assert"
+
+	"scroll-tech/database/migrate"
+
+	"scroll-tech/common/types"
+	"scroll-tech/common/utils"
+
+	"scroll-tech/bridge/sender"
+
+	"scroll-tech/database"
+)
+
+var (
+	templateL1Message = []*types.L1Message{
+		{
+			QueueIndex: 1,
+			MsgHash:    "msg_hash1",
+			Height:     1,
+			Sender:     "0x596a746661dbed76a84556111c2872249b070e15",
+			Value:      "0x19ece",
+			GasLimit:   11529940,
+			Target:     "0x2c73620b223808297ea734d946813f0dd78eb8f7",
+			Calldata:   "testdata",
+			Layer1Hash: "hash0",
+		},
+		{
+			QueueIndex: 2,
+			MsgHash:    "msg_hash2",
+			Height:     2,
+			Sender:     "0x596a746661dbed76a84556111c2872249b070e15",
+			Value:      "0x19ece",
+			GasLimit:   11529940,
+			Target:     "0x2c73620b223808297ea734d946813f0dd78eb8f7",
+			Calldata:   "testdata",
+			Layer1Hash: "hash1",
+		},
+	}
+)
+
+// testCreateNewRelayer test create new relayer instance and stop
+func testCreateNewL1Relayer(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 := NewLayer1Relayer(context.Background(), db, cfg.L2Config.RelayerConfig)
+	assert.NoError(t, err)
+	assert.NotNil(t, relayer)
+}
+
+func testL1RelayerProcessSaveEvents(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()
+	l1Cfg := cfg.L1Config
+	relayer, err := NewLayer1Relayer(context.Background(), db, l1Cfg.RelayerConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, db.SaveL1Messages(context.Background(), templateL1Message))
+	relayer.ProcessSavedEvents()
+	msg1, err := db.GetL1MessageByQueueIndex(1)
+	assert.NoError(t, err)
+	assert.Equal(t, msg1.Status, types.MsgSubmitted)
+	msg2, err := db.GetL1MessageByQueueIndex(2)
+	assert.NoError(t, err)
+	assert.Equal(t, msg2.Status, types.MsgSubmitted)
+}
+
+func testL1RelayerMsgConfirm(t *testing.T) {
+	// Set up the database and defer closing it.
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	defer db.Close()
+
+	// Insert test data.
+	assert.NoError(t, db.SaveL1Messages(context.Background(),
+		[]*types.L1Message{
+			{MsgHash: "msg-1", QueueIndex: 0},
+			{MsgHash: "msg-2", QueueIndex: 1},
+		}))
+
+	// Create and set up the Layer1 Relayer.
+	l1Cfg := cfg.L1Config
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	l1Relayer, err := NewLayer1Relayer(ctx, db, l1Cfg.RelayerConfig)
+	assert.NoError(t, err)
+	assert.NotNil(t, l1Relayer)
+
+	// Simulate message confirmations.
+	l1Relayer.messageSender.SendConfirmation(&sender.Confirmation{
+		ID:           "msg-1",
+		IsSuccessful: true,
+	})
+	l1Relayer.messageSender.SendConfirmation(&sender.Confirmation{
+		ID:           "msg-2",
+		IsSuccessful: false,
+	})
+
+	// Check the database for the updated status using TryTimes.
+	ok := utils.TryTimes(5, func() bool {
+		msg1, err1 := db.GetL1MessageByMsgHash("msg-1")
+		msg2, err2 := db.GetL1MessageByMsgHash("msg-2")
+		return err1 == nil && msg1.Status == types.MsgConfirmed &&
+			err2 == nil && msg2.Status == types.MsgRelayFailed
+	})
+	assert.True(t, ok)
+}
+
+func testL1RelayerGasOracleConfirm(t *testing.T) {
+	// Set up the database and defer closing it.
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	defer db.Close()
+
+	// Insert test data.
+	assert.NoError(t, db.InsertL1Blocks(context.Background(),
+		[]*types.L1BlockInfo{
+			{Hash: "gas-oracle-1", Number: 0},
+			{Hash: "gas-oracle-2", Number: 1},
+		}))
+
+	// Create and set up the Layer2 Relayer.
+	l1Cfg := cfg.L1Config
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	l1Relayer, err := NewLayer1Relayer(ctx, db, l1Cfg.RelayerConfig)
+	assert.NoError(t, err)
+	assert.NotNil(t, l1Relayer)
+
+	// Simulate message confirmations.
+	l1Relayer.gasOracleSender.SendConfirmation(&sender.Confirmation{
+		ID:           "gas-oracle-1",
+		IsSuccessful: true,
+	})
+	l1Relayer.gasOracleSender.SendConfirmation(&sender.Confirmation{
+		ID:           "gas-oracle-2",
+		IsSuccessful: false,
+	})
+
+	// Check the database for the updated status using TryTimes.
+	ok := utils.TryTimes(5, func() bool {
+		msg1, err1 := db.GetL1BlockInfos(map[string]interface{}{"hash": "gas-oracle-1"})
+		msg2, err2 := db.GetL1BlockInfos(map[string]interface{}{"hash": "gas-oracle-2"})
+		return err1 == nil && len(msg1) == 1 && msg1[0].GasOracleStatus == types.GasOracleImported &&
+			err2 == nil && len(msg2) == 1 && msg2[0].GasOracleStatus == types.GasOracleFailed
+	})
+	assert.True(t, ok)
+}
+
+func testL1RelayerProcessGasPriceOracle(t *testing.T) {
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	defer db.Close()
+
+	l1Cfg := cfg.L1Config
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	l1Relayer, err := NewLayer1Relayer(ctx, db, l1Cfg.RelayerConfig)
+	assert.NoError(t, err)
+	assert.NotNil(t, l1Relayer)
+
+	convey.Convey("GetLatestL1BlockHeight failure", t, func() {
+		targetErr := errors.New("GetLatestL1BlockHeight error")
+		patchGuard := gomonkey.ApplyMethodFunc(db, "GetLatestL1BlockHeight", func() (uint64, error) {
+			return 0, targetErr
+		})
+		defer patchGuard.Reset()
+		l1Relayer.ProcessGasPriceOracle()
+	})
+
+	patchGuard := gomonkey.ApplyMethodFunc(db, "GetLatestL1BlockHeight", func() (uint64, error) {
+		return 100, nil
+	})
+	defer patchGuard.Reset()
+
+	convey.Convey("GetL1BlockInfos failure", t, func() {
+		targetErr := errors.New("GetL1BlockInfos error")
+		patchGuard.ApplyMethodFunc(db, "GetL1BlockInfos", func(fields map[string]interface{}, args ...string) ([]*types.L1BlockInfo, error) {
+			return nil, targetErr
+		})
+		l1Relayer.ProcessGasPriceOracle()
+	})
+
+	convey.Convey("Block not exist", t, func() {
+		patchGuard.ApplyMethodFunc(db, "GetL1BlockInfos", func(fields map[string]interface{}, args ...string) ([]*types.L1BlockInfo, error) {
+			tmpInfo := []*types.L1BlockInfo{
+				{Hash: "gas-oracle-1", Number: 0},
+				{Hash: "gas-oracle-2", Number: 1},
+			}
+			return tmpInfo, nil
+		})
+		l1Relayer.ProcessGasPriceOracle()
+	})
+
+	patchGuard.ApplyMethodFunc(db, "GetL1BlockInfos", func(fields map[string]interface{}, args ...string) ([]*types.L1BlockInfo, error) {
+		tmpInfo := []*types.L1BlockInfo{
+			{
+				Hash:            "gas-oracle-1",
+				Number:          0,
+				GasOracleStatus: types.GasOraclePending,
+			},
+		}
+		return tmpInfo, nil
+	})
+
+	convey.Convey("setL1BaseFee failure", t, func() {
+		targetErr := errors.New("pack setL1BaseFee error")
+		patchGuard.ApplyMethodFunc(l1Relayer.l1GasOracleABI, "Pack", func(name string, args ...interface{}) ([]byte, error) {
+			return nil, targetErr
+		})
+		l1Relayer.ProcessGasPriceOracle()
+	})
+
+	patchGuard.ApplyMethodFunc(l1Relayer.l1GasOracleABI, "Pack", func(name string, args ...interface{}) ([]byte, error) {
+		return []byte("for test"), nil
+	})
+
+	convey.Convey("send transaction failure", t, func() {
+		targetErr := errors.New("send transaction failure")
+		patchGuard.ApplyMethodFunc(l1Relayer.gasOracleSender, "SendTransaction", func(string, *common.Address, *big.Int, []byte, uint64) (hash common.Hash, err error) {
+			return common.Hash{}, targetErr
+		})
+		l1Relayer.ProcessGasPriceOracle()
+	})
+
+	patchGuard.ApplyMethodFunc(l1Relayer.gasOracleSender, "SendTransaction", func(string, *common.Address, *big.Int, []byte, uint64) (hash common.Hash, err error) {
+		return common.Hash{}, nil
+	})
+
+	convey.Convey("UpdateL1GasOracleStatusAndOracleTxHash failure", t, func() {
+		targetErr := errors.New("UpdateL1GasOracleStatusAndOracleTxHash failure")
+		patchGuard.ApplyMethodFunc(db, "UpdateL1GasOracleStatusAndOracleTxHash", func(context.Context, string, types.GasOracleStatus, string) error {
+			return targetErr
+		})
+		l1Relayer.ProcessGasPriceOracle()
+	})
+
+	patchGuard.ApplyMethodFunc(db, "UpdateL1GasOracleStatusAndOracleTxHash", func(context.Context, string, types.GasOracleStatus, string) error {
+		return nil
+	})
+
+	l1Relayer.ProcessGasPriceOracle()
+}

bridge/relayer/l2_relayer.go

@@ -1,4 +1,4 @@
-package l2
+package relayer
 
 import (
 	"context"
@@ -7,7 +7,6 @@ import (
 	"math/big"
 	"runtime"
 	"sync"
-	"time"
 
 	"github.com/scroll-tech/go-ethereum/accounts/abi"
 	"github.com/scroll-tech/go-ethereum/common"
@@ -20,9 +19,8 @@ import (
 
 	"scroll-tech/common/metrics"
 	"scroll-tech/common/types"
-	"scroll-tech/database"
 
-	cutil "scroll-tech/common/utils"
+	"scroll-tech/database"
 
 	bridge_abi "scroll-tech/bridge/abi"
 	"scroll-tech/bridge/config"
@@ -40,14 +38,6 @@ var (
 	bridgeL2BatchesSkippedTotalCounter            = geth_metrics.NewRegisteredCounter("bridge/l2/batches/skipped/total", metrics.ScrollRegistry)
 )
 
-const (
-	gasPriceDiffPrecision = 1000000
-
-	defaultGasPriceDiff = 50000 // 5%
-
-	defaultMessageRelayMinGasLimit = 200000 // should be enough for both ERC20 and ETH relay
-)
-
 // Layer2Relayer is responsible for
 //  1. Committing and finalizing L2 blocks on L1
 //  2. Relaying messages from L2 to L1
@@ -63,15 +53,12 @@ type Layer2Relayer struct {
 	cfg *config.RelayerConfig
 
 	messageSender  *sender.Sender
-	messageCh      <-chan *sender.Confirmation
 	l1MessengerABI *abi.ABI
 
 	rollupSender *sender.Sender
-	rollupCh     <-chan *sender.Confirmation
 	l1RollupABI  *abi.ABI
 
 	gasOracleSender *sender.Sender
-	gasOracleCh     <-chan *sender.Confirmation
 	l2GasOracleABI  *abi.ABI
 
 	minGasLimitForMessageRelay uint64
@@ -91,8 +78,6 @@ type Layer2Relayer struct {
 	// A list of processing batch finalization.
 	// key(string): confirmation ID, value(string): batch hash.
 	processingFinalization sync.Map
-
-	stopCh chan struct{}
 }
 
 // NewLayer2Relayer will return a new instance of Layer2RelayerClient
@@ -126,27 +111,24 @@ func NewLayer2Relayer(ctx context.Context, l2Client *ethclient.Client, db databa
 		gasPriceDiff = defaultGasPriceDiff
 	}
 
-	minGasLimitForMessageRelay := uint64(defaultMessageRelayMinGasLimit)
+	minGasLimitForMessageRelay := uint64(defaultL2MessageRelayMinGasLimit)
 	if cfg.MessageRelayMinGasLimit != 0 {
 		minGasLimitForMessageRelay = cfg.MessageRelayMinGasLimit
 	}
 
-	return &Layer2Relayer{
+	layer2Relayer := &Layer2Relayer{
 		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,
 
 		minGasLimitForMessageRelay: minGasLimitForMessageRelay,
@@ -158,8 +140,9 @@ func NewLayer2Relayer(ctx context.Context, l2Client *ethclient.Client, db databa
 		processingMessage:           sync.Map{},
 		processingBatchesCommitment: sync.Map{},
 		processingFinalization:      sync.Map{},
-		stopCh:                      make(chan struct{}),
-	}, nil
+	}
+	go layer2Relayer.handleConfirmLoop(ctx)
+	return layer2Relayer, nil
 }
 
 const processMsgLimit = 100
@@ -198,7 +181,7 @@ func (r *Layer2Relayer) ProcessSavedEvents() {
 			})
 		}
 		if err := g.Wait(); err != nil {
-			if !errors.Is(err, sender.ErrNoAvailableAccount) {
+			if !errors.Is(err, sender.ErrNoAvailableAccount) && !errors.Is(err, sender.ErrFullPending) {
 				log.Error("failed to process l2 saved event", "err", err)
 			}
 			return
@@ -247,11 +230,11 @@ func (r *Layer2Relayer) processSavedEvent(msg *types.L2Message) error {
 	if err != nil && err.Error() == "execution reverted: Message expired" {
 		return r.db.UpdateLayer2Status(r.ctx, msg.MsgHash, types.MsgExpired)
 	}
-	if err != nil && err.Error() == "execution reverted: Message successfully executed" {
+	if err != nil && err.Error() == "execution reverted: Message was already successfully executed" {
 		return r.db.UpdateLayer2Status(r.ctx, msg.MsgHash, types.MsgConfirmed)
 	}
 	if err != nil {
-		if !errors.Is(err, sender.ErrNoAvailableAccount) {
+		if !errors.Is(err, sender.ErrNoAvailableAccount) && !errors.Is(err, sender.ErrFullPending) {
 			log.Error("Failed to send relayMessageWithProof tx to layer1 ", "msg.height", msg.Height, "msg.MsgHash", msg.MsgHash, "err", err)
 		}
 		return err
@@ -297,7 +280,7 @@ func (r *Layer2Relayer) ProcessGasPriceOracle() {
 
 			hash, err := r.gasOracleSender.SendTransaction(batch.Hash, &r.cfg.GasPriceOracleContractAddress, big.NewInt(0), data, 0)
 			if err != nil {
-				if !errors.Is(err, sender.ErrNoAvailableAccount) {
+				if !errors.Is(err, sender.ErrNoAvailableAccount) && !errors.Is(err, sender.ErrFullPending) {
 					log.Error("Failed to send setL2BaseFee tx to layer2 ", "batch.Hash", batch.Hash, "err", err)
 				}
 				return
@@ -343,7 +326,7 @@ func (r *Layer2Relayer) SendCommitTx(batchData []*types.BatchData) error {
 	txID := crypto.Keccak256Hash(bytes).String()
 	txHash, err := r.rollupSender.SendTransaction(txID, &r.cfg.RollupContractAddress, big.NewInt(0), calldata, 0)
 	if err != nil {
-		if !errors.Is(err, sender.ErrNoAvailableAccount) {
+		if !errors.Is(err, sender.ErrNoAvailableAccount) && !errors.Is(err, sender.ErrFullPending) {
 			log.Error("Failed to send commitBatches tx to layer1 ", "err", err)
 		}
 		return err
@@ -462,12 +445,12 @@ func (r *Layer2Relayer) ProcessCommittedBatches() {
 			}
 		}()
 
-		proofBuffer, instanceBuffer, err := r.db.GetVerifiedProofAndInstanceByHash(hash)
+		proofBuffer, icBuffer, err := r.db.GetVerifiedProofAndInstanceCommitmentsByHash(hash)
 		if err != nil {
 			log.Warn("fetch get proof by hash failed", "hash", hash, "err", err)
 			return
 		}
-		if proofBuffer == nil || instanceBuffer == nil {
+		if proofBuffer == nil || icBuffer == nil {
 			log.Warn("proof or instance not ready", "hash", hash)
 			return
 		}
@@ -475,13 +458,13 @@ func (r *Layer2Relayer) ProcessCommittedBatches() {
 			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", "hash", hash, "length", len(instanceBuffer))
+		if len(icBuffer)%32 != 0 {
+			log.Warn("instance buffer has wrong length", "hash", hash, "length", len(icBuffer))
 			return
 		}
 
 		proof := utils.BufferToUint256Le(proofBuffer)
-		instance := utils.BufferToUint256Le(instanceBuffer)
+		instance := utils.BufferToUint256Le(icBuffer)
 		data, err := r.l1RollupABI.Pack("finalizeBatchWithProof", common.HexToHash(hash), proof, instance)
 		if err != nil {
 			log.Error("Pack finalizeBatchWithProof failed", "err", err)
@@ -493,7 +476,7 @@ func (r *Layer2Relayer) ProcessCommittedBatches() {
 		txHash, err := r.rollupSender.SendTransaction(txID, &r.cfg.RollupContractAddress, big.NewInt(0), data, 0)
 		finalizeTxHash := &txHash
 		if err != nil {
-			if !errors.Is(err, sender.ErrNoAvailableAccount) {
+			if !errors.Is(err, sender.ErrNoAvailableAccount) && !errors.Is(err, sender.ErrFullPending) {
 				log.Error("finalizeBatchWithProof in layer1 failed", "hash", hash, "err", err)
 			}
 			return
@@ -516,53 +499,6 @@ func (r *Layer2Relayer) ProcessCommittedBatches() {
 	}
 }
 
-// Start the relayer process
-func (r *Layer2Relayer) Start() {
-	go func() {
-		ctx, cancel := context.WithCancel(r.ctx)
-		go cutil.Loop(ctx, time.Second, r.ProcessSavedEvents)
-		go cutil.Loop(ctx, time.Second, r.ProcessCommittedBatches)
-		go cutil.Loop(ctx, time.Second, 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()
-	}()
-}
-
-// Stop the relayer module, for a graceful shutdown.
-func (r *Layer2Relayer) Stop() {
-	close(r.stopCh)
-}
-
 func (r *Layer2Relayer) handleConfirmation(confirmation *sender.Confirmation) {
 	transactionType := "Unknown"
 	// check whether it is message relay transaction
@@ -626,3 +562,32 @@ func (r *Layer2Relayer) handleConfirmation(confirmation *sender.Confirmation) {
 	}
 	log.Info("transaction confirmed in layer1", "type", transactionType, "confirmation", confirmation)
 }
+
+func (r *Layer2Relayer) handleConfirmLoop(ctx context.Context) {
+	for {
+		select {
+		case <-ctx.Done():
+			return
+		case confirmation := <-r.messageSender.ConfirmChan():
+			r.handleConfirmation(confirmation)
+		case confirmation := <-r.rollupSender.ConfirmChan():
+			r.handleConfirmation(confirmation)
+		case cfm := <-r.gasOracleSender.ConfirmChan():
+			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)
+			}
+		}
+	}
+}

bridge/relayer/l2_relayer_test.go

@@ -0,0 +1,552 @@
+package relayer
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"math/big"
+	"os"
+	"strconv"
+	"testing"
+
+	"github.com/agiledragon/gomonkey/v2"
+	"github.com/scroll-tech/go-ethereum/accounts/abi"
+	"github.com/scroll-tech/go-ethereum/common"
+	geth_types "github.com/scroll-tech/go-ethereum/core/types"
+	"github.com/smartystreets/goconvey/convey"
+	"github.com/stretchr/testify/assert"
+
+	"scroll-tech/common/types"
+	"scroll-tech/common/utils"
+
+	"scroll-tech/bridge/sender"
+
+	"scroll-tech/database"
+	"scroll-tech/database/migrate"
+)
+
+var (
+	templateL2Message = []*types.L2Message{
+		{
+			Nonce:      1,
+			Height:     1,
+			Sender:     "0x596a746661dbed76a84556111c2872249b070e15",
+			Value:      "100",
+			Target:     "0x2c73620b223808297ea734d946813f0dd78eb8f7",
+			Calldata:   "testdata",
+			Layer2Hash: "hash0",
+		},
+	}
+)
+
+func testCreateNewRelayer(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)
+	assert.NotNil(t, relayer)
+}
+
+func testL2RelayerProcessSaveEvents(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(), l2Cli, db, l2Cfg.RelayerConfig)
+	assert.NoError(t, err)
+
+	err = db.SaveL2Messages(context.Background(), templateL2Message)
+	assert.NoError(t, err)
+
+	traces := []*types.WrappedBlock{
+		{
+			Header: &geth_types.Header{
+				Number: big.NewInt(int64(templateL2Message[0].Height)),
+			},
+			Transactions:     nil,
+			WithdrawTrieRoot: common.Hash{},
+		},
+		{
+			Header: &geth_types.Header{
+				Number: big.NewInt(int64(templateL2Message[0].Height + 1)),
+			},
+			Transactions:     nil,
+			WithdrawTrieRoot: common.Hash{},
+		},
+	}
+	assert.NoError(t, db.InsertWrappedBlocks(traces))
+
+	parentBatch1 := &types.BlockBatch{
+		Index:     0,
+		Hash:      common.Hash{}.Hex(),
+		StateRoot: common.Hash{}.Hex(),
+	}
+	batchData1 := types.NewBatchData(parentBatch1, []*types.WrappedBlock{wrappedBlock1}, nil)
+	dbTx, err := db.Beginx()
+	assert.NoError(t, err)
+	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)
+
+	relayer.ProcessSavedEvents()
+
+	msg, err := db.GetL2MessageByNonce(templateL2Message[0].Nonce)
+	assert.NoError(t, err)
+	assert.Equal(t, types.MsgSubmitted, msg.Status)
+}
+
+func testL2RelayerProcessCommittedBatches(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(), l2Cli, db, l2Cfg.RelayerConfig)
+	assert.NoError(t, err)
+
+	parentBatch1 := &types.BlockBatch{
+		Index:     0,
+		Hash:      common.Hash{}.Hex(),
+		StateRoot: common.Hash{}.Hex(),
+	}
+	batchData1 := types.NewBatchData(parentBatch1, []*types.WrappedBlock{wrappedBlock1}, nil)
+	dbTx, err := db.Beginx()
+	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(), 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.UpdateProofByHash(context.Background(), batchHash, tProof, tInstanceCommitments, 100)
+	assert.NoError(t, err)
+	err = db.UpdateProvingStatus(batchHash, types.ProvingTaskVerified)
+	assert.NoError(t, err)
+
+	relayer.ProcessCommittedBatches()
+
+	status, err := db.GetRollupStatus(batchHash)
+	assert.NoError(t, err)
+	assert.Equal(t, types.RollupFinalizing, status)
+}
+
+func testL2RelayerSkipBatches(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(), l2Cli, db, l2Cfg.RelayerConfig)
+	assert.NoError(t, err)
+
+	createBatch := func(rollupStatus types.RollupStatus, provingStatus types.ProvingStatus, index uint64) string {
+		dbTx, err := db.Beginx()
+		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(), 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.UpdateProofByHash(context.Background(), batchHash, tProof, tInstanceCommitments, 100)
+		assert.NoError(t, err)
+		err = db.UpdateProvingStatus(batchHash, provingStatus)
+		assert.NoError(t, err)
+
+		return batchHash
+	}
+
+	skipped := []string{
+		createBatch(types.RollupCommitted, types.ProvingTaskSkipped, 1),
+		createBatch(types.RollupCommitted, types.ProvingTaskFailed, 2),
+	}
+
+	notSkipped := []string{
+		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),
+	}
+
+	relayer.ProcessCommittedBatches()
+
+	for _, id := range skipped {
+		status, err := db.GetRollupStatus(id)
+		assert.NoError(t, err)
+		assert.Equal(t, types.RollupFinalizationSkipped, status)
+	}
+
+	for _, id := range notSkipped {
+		status, err := db.GetRollupStatus(id)
+		assert.NoError(t, err)
+		assert.NotEqual(t, types.RollupFinalizationSkipped, status)
+	}
+}
+
+func testL2RelayerMsgConfirm(t *testing.T) {
+	// Set up the database and defer closing it.
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	defer db.Close()
+
+	// Insert test data.
+	assert.NoError(t, db.SaveL2Messages(context.Background(), []*types.L2Message{
+		{MsgHash: "msg-1", Nonce: 0}, {MsgHash: "msg-2", Nonce: 1},
+	}))
+
+	// Create and set up the Layer2 Relayer.
+	l2Cfg := cfg.L2Config
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	l2Relayer, err := NewLayer2Relayer(ctx, l2Cli, db, l2Cfg.RelayerConfig)
+	assert.NoError(t, err)
+
+	// Simulate message confirmations.
+	l2Relayer.processingMessage.Store("msg-1", "msg-1")
+	l2Relayer.messageSender.SendConfirmation(&sender.Confirmation{
+		ID:           "msg-1",
+		IsSuccessful: true,
+	})
+	l2Relayer.processingMessage.Store("msg-2", "msg-2")
+	l2Relayer.messageSender.SendConfirmation(&sender.Confirmation{
+		ID:           "msg-2",
+		IsSuccessful: false,
+	})
+
+	// Check the database for the updated status using TryTimes.
+	assert.True(t, utils.TryTimes(5, func() bool {
+		msg1, err1 := db.GetL2MessageByMsgHash("msg-1")
+		msg2, err2 := db.GetL2MessageByMsgHash("msg-2")
+		return err1 == nil && msg1.Status == types.MsgConfirmed &&
+			err2 == nil && msg2.Status == types.MsgRelayFailed
+	}))
+}
+
+func testL2RelayerRollupConfirm(t *testing.T) {
+	// Set up the database and defer closing it.
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	defer db.Close()
+
+	// Insert test data.
+	batches := make([]*types.BatchData, 6)
+	for i := 0; i < 6; i++ {
+		batches[i] = genBatchData(t, uint64(i))
+	}
+
+	dbTx, err := db.Beginx()
+	assert.NoError(t, err)
+	for _, batch := range batches {
+		assert.NoError(t, db.NewBatchInDBTx(dbTx, batch))
+	}
+	assert.NoError(t, dbTx.Commit())
+
+	// Create and set up the Layer2 Relayer.
+	l2Cfg := cfg.L2Config
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	l2Relayer, err := NewLayer2Relayer(ctx, l2Cli, db, l2Cfg.RelayerConfig)
+	assert.NoError(t, err)
+
+	// Simulate message confirmations.
+	processingKeys := []string{"committed-1", "committed-2", "finalized-1", "finalized-2"}
+	isSuccessful := []bool{true, false, true, false}
+
+	for i, key := range processingKeys[:2] {
+		batchHashes := []string{batches[i*2].Hash().Hex(), batches[i*2+1].Hash().Hex()}
+		l2Relayer.processingBatchesCommitment.Store(key, batchHashes)
+		l2Relayer.messageSender.SendConfirmation(&sender.Confirmation{
+			ID:           key,
+			IsSuccessful: isSuccessful[i],
+		})
+	}
+
+	for i, key := range processingKeys[2:] {
+		batchHash := batches[i+4].Hash().Hex()
+		l2Relayer.processingFinalization.Store(key, batchHash)
+		l2Relayer.rollupSender.SendConfirmation(&sender.Confirmation{
+			ID:           key,
+			IsSuccessful: isSuccessful[i+2],
+			TxHash:       common.HexToHash("0x56789abcdef1234"),
+		})
+	}
+
+	// Check the database for the updated status using TryTimes.
+	ok := utils.TryTimes(5, func() bool {
+		expectedStatuses := []types.RollupStatus{
+			types.RollupCommitted,
+			types.RollupCommitted,
+			types.RollupCommitFailed,
+			types.RollupCommitFailed,
+			types.RollupFinalized,
+			types.RollupFinalizeFailed,
+		}
+
+		for i, batch := range batches[:6] {
+			batchInDB, err := db.GetBlockBatches(map[string]interface{}{"hash": batch.Hash().Hex()})
+			if err != nil || len(batchInDB) != 1 || batchInDB[0].RollupStatus != expectedStatuses[i] {
+				return false
+			}
+		}
+		return true
+	})
+	assert.True(t, ok)
+}
+
+func testL2RelayerGasOracleConfirm(t *testing.T) {
+	// Set up the database and defer closing it.
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	defer db.Close()
+
+	// Insert test data.
+	batches := make([]*types.BatchData, 2)
+	for i := 0; i < 2; i++ {
+		batches[i] = genBatchData(t, uint64(i))
+	}
+
+	dbTx, err := db.Beginx()
+	assert.NoError(t, err)
+	for _, batch := range batches {
+		assert.NoError(t, db.NewBatchInDBTx(dbTx, batch))
+	}
+	assert.NoError(t, dbTx.Commit())
+
+	// Create and set up the Layer2 Relayer.
+	l2Cfg := cfg.L2Config
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	l2Relayer, err := NewLayer2Relayer(ctx, l2Cli, db, l2Cfg.RelayerConfig)
+	assert.NoError(t, err)
+
+	// Simulate message confirmations.
+	isSuccessful := []bool{true, false}
+	for i, batch := range batches {
+		l2Relayer.gasOracleSender.SendConfirmation(&sender.Confirmation{
+			ID:           batch.Hash().Hex(),
+			IsSuccessful: isSuccessful[i],
+		})
+	}
+
+	// Check the database for the updated status using TryTimes.
+	ok := utils.TryTimes(5, func() bool {
+		expectedStatuses := []types.GasOracleStatus{types.GasOracleImported, types.GasOracleFailed}
+		for i, batch := range batches {
+			gasOracle, err := db.GetBlockBatches(map[string]interface{}{"hash": batch.Hash().Hex()})
+			if err != nil || len(gasOracle) != 1 || gasOracle[0].OracleStatus != expectedStatuses[i] {
+				return false
+			}
+		}
+		return true
+	})
+	assert.True(t, ok)
+}
+
+func genBatchData(t *testing.T, index uint64) *types.BatchData {
+	templateBlockTrace, err := os.ReadFile("../../common/testdata/blockTrace_02.json")
+	assert.NoError(t, err)
+	// unmarshal blockTrace
+	wrappedBlock := &types.WrappedBlock{}
+	err = json.Unmarshal(templateBlockTrace, wrappedBlock)
+	assert.NoError(t, err)
+	wrappedBlock.Header.ParentHash = common.HexToHash("0x" + strconv.FormatUint(index+1, 16))
+	parentBatch := &types.BlockBatch{
+		Index: index,
+		Hash:  "0x0000000000000000000000000000000000000000",
+	}
+	return types.NewBatchData(parentBatch, []*types.WrappedBlock{wrappedBlock}, nil)
+}
+
+func testLayer2RelayerProcessGasPriceOracle(t *testing.T) {
+	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)
+	assert.NotNil(t, relayer)
+
+	convey.Convey("Failed to GetLatestBatch", t, func() {
+		targetErr := errors.New("GetLatestBatch error")
+		patchGuard := gomonkey.ApplyMethodFunc(db, "GetLatestBatch", func() (*types.BlockBatch, error) {
+			return nil, targetErr
+		})
+		defer patchGuard.Reset()
+		relayer.ProcessGasPriceOracle()
+	})
+
+	patchGuard := gomonkey.ApplyMethodFunc(db, "GetLatestBatch", func() (*types.BlockBatch, error) {
+		batch := types.BlockBatch{
+			OracleStatus: types.GasOraclePending,
+			Hash:         "0x0000000000000000000000000000000000000000",
+		}
+		return &batch, nil
+	})
+	defer patchGuard.Reset()
+
+	convey.Convey("Failed to fetch SuggestGasPrice from l2geth", t, func() {
+		targetErr := errors.New("SuggestGasPrice error")
+		patchGuard.ApplyMethodFunc(relayer.l2Client, "SuggestGasPrice", func(ctx context.Context) (*big.Int, error) {
+			return nil, targetErr
+		})
+		relayer.ProcessGasPriceOracle()
+	})
+
+	patchGuard.ApplyMethodFunc(relayer.l2Client, "SuggestGasPrice", func(ctx context.Context) (*big.Int, error) {
+		return big.NewInt(100), nil
+	})
+
+	convey.Convey("Failed to pack setL2BaseFee", t, func() {
+		targetErr := errors.New("setL2BaseFee error")
+		patchGuard.ApplyMethodFunc(relayer.l2GasOracleABI, "Pack", func(name string, args ...interface{}) ([]byte, error) {
+			return nil, targetErr
+		})
+		relayer.ProcessGasPriceOracle()
+	})
+
+	patchGuard.ApplyMethodFunc(relayer.l2GasOracleABI, "Pack", func(name string, args ...interface{}) ([]byte, error) {
+		return nil, nil
+	})
+
+	convey.Convey("Failed to send setL2BaseFee tx to layer2", t, func() {
+		targetErr := errors.New("failed to send setL2BaseFee tx to layer2 error")
+		patchGuard.ApplyMethodFunc(relayer.gasOracleSender, "SendTransaction", func(ID string, target *common.Address, value *big.Int, data []byte, minGasLimit uint64) (hash common.Hash, err error) {
+			return common.Hash{}, targetErr
+		})
+		relayer.ProcessGasPriceOracle()
+	})
+
+	patchGuard.ApplyMethodFunc(relayer.gasOracleSender, "SendTransaction", func(ID string, target *common.Address, value *big.Int, data []byte, minGasLimit uint64) (hash common.Hash, err error) {
+		return common.HexToHash("0x56789abcdef1234"), nil
+	})
+
+	convey.Convey("UpdateGasOracleStatusAndOracleTxHash failed", t, func() {
+		targetErr := errors.New("UpdateL2GasOracleStatusAndOracleTxHash error")
+		patchGuard.ApplyMethodFunc(db, "UpdateL2GasOracleStatusAndOracleTxHash", func(ctx context.Context, hash string, status types.GasOracleStatus, txHash string) error {
+			return targetErr
+		})
+		relayer.ProcessGasPriceOracle()
+	})
+
+	patchGuard.ApplyMethodFunc(db, "UpdateL2GasOracleStatusAndOracleTxHash", func(ctx context.Context, hash string, status types.GasOracleStatus, txHash string) error {
+		return nil
+	})
+	relayer.ProcessGasPriceOracle()
+}
+
+func testLayer2RelayerSendCommitTx(t *testing.T) {
+	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)
+	assert.NotNil(t, relayer)
+
+	var batchDataList []*types.BatchData
+	convey.Convey("SendCommitTx receives empty batch", t, func() {
+		err = relayer.SendCommitTx(batchDataList)
+		assert.NoError(t, err)
+	})
+
+	parentBatch := &types.BlockBatch{
+		Index: 0,
+		Hash:  "0x0000000000000000000000000000000000000000",
+	}
+
+	traces := []*types.WrappedBlock{
+		{
+			Header: &geth_types.Header{
+				Number:     big.NewInt(1000),
+				ParentHash: common.Hash{},
+				Difficulty: big.NewInt(0),
+				BaseFee:    big.NewInt(0),
+			},
+			Transactions:     nil,
+			WithdrawTrieRoot: common.Hash{},
+		},
+	}
+
+	blocks := []*types.WrappedBlock{traces[0]}
+	tmpBatchData := types.NewBatchData(parentBatch, blocks, cfg.L2Config.BatchProposerConfig.PublicInputConfig)
+	batchDataList = append(batchDataList, tmpBatchData)
+
+	var s abi.ABI
+	convey.Convey("Failed to pack commitBatches", t, func() {
+		targetErr := errors.New("commitBatches error")
+		patchGuard := gomonkey.ApplyMethodFunc(s, "Pack", func(name string, args ...interface{}) ([]byte, error) {
+			return nil, targetErr
+		})
+		defer patchGuard.Reset()
+
+		err = relayer.SendCommitTx(batchDataList)
+		assert.EqualError(t, err, targetErr.Error())
+	})
+
+	patchGuard := gomonkey.ApplyMethodFunc(s, "Pack", func(name string, args ...interface{}) ([]byte, error) {
+		return nil, nil
+	})
+	defer patchGuard.Reset()
+
+	convey.Convey("Failed to send commitBatches tx to layer1", t, func() {
+		targetErr := errors.New("SendTransaction failure")
+		patchGuard.ApplyMethodFunc(relayer.rollupSender, "SendTransaction", func(ID string, target *common.Address, value *big.Int, data []byte, minGasLimit uint64) (hash common.Hash, err error) {
+			return common.Hash{}, targetErr
+		})
+		err = relayer.SendCommitTx(batchDataList)
+		assert.EqualError(t, err, targetErr.Error())
+	})
+
+	patchGuard.ApplyMethodFunc(relayer.rollupSender, "SendTransaction", func(ID string, target *common.Address, value *big.Int, data []byte, minGasLimit uint64) (hash common.Hash, err error) {
+		return common.HexToHash("0x56789abcdef1234"), nil
+	})
+
+	convey.Convey("UpdateCommitTxHashAndRollupStatus failed", t, func() {
+		targetErr := errors.New("UpdateCommitTxHashAndRollupStatus failure")
+		patchGuard.ApplyMethodFunc(db, "UpdateCommitTxHashAndRollupStatus", func(ctx context.Context, hash string, commitTxHash string, status types.RollupStatus) error {
+			return targetErr
+		})
+		err = relayer.SendCommitTx(batchDataList)
+		assert.NoError(t, err)
+	})
+
+	patchGuard.ApplyMethodFunc(db, "UpdateCommitTxHashAndRollupStatus", func(ctx context.Context, hash string, commitTxHash string, status types.RollupStatus) error {
+		return nil
+	})
+	err = relayer.SendCommitTx(batchDataList)
+	assert.NoError(t, err)
+}

bridge/relayer/params.go

@@ -0,0 +1,11 @@
+package relayer
+
+const (
+	gasPriceDiffPrecision = 1000000
+
+	defaultGasPriceDiff = 50000 // 5%
+
+	defaultL1MessageRelayMinGasLimit = 130000 // should be enough for both ERC20 and ETH relay
+
+	defaultL2MessageRelayMinGasLimit = 200000
+)

bridge/relayer/relayer_test.go

@@ -1,4 +1,4 @@
-package l2
+package relayer
 
 import (
 	"encoding/json"
@@ -40,9 +40,9 @@ func setupEnv(t *testing.T) (err error) {
 
 	base.RunImages(t)
 
-	cfg.L2Config.RelayerConfig.SenderConfig.Endpoint = base.L1GethEndpoint()
-	cfg.L1Config.RelayerConfig.SenderConfig.Endpoint = base.L2GethEndpoint()
-	cfg.DBConfig.DSN = base.DBEndpoint()
+	cfg.L2Config.RelayerConfig.SenderConfig.Endpoint = base.L1gethImg.Endpoint()
+	cfg.L1Config.RelayerConfig.SenderConfig.Endpoint = base.L2gethImg.Endpoint()
+	cfg.DBConfig = base.DBConfig
 
 	// Create l2geth client.
 	l2Cli, err = base.L2Client()
@@ -93,24 +93,25 @@ func TestMain(m *testing.M) {
 	base.Free()
 }
 
-func TestFunction(t *testing.T) {
+func TestFunctions(t *testing.T) {
 	if err := setupEnv(t); err != nil {
 		t.Fatal(err)
 	}
-
-	// Run l2 watcher test cases.
-	t.Run("TestCreateNewWatcherAndStop", testCreateNewWatcherAndStop)
-	t.Run("TestMonitorBridgeContract", testMonitorBridgeContract)
-	t.Run("TestFetchMultipleSentMessageInOneBlock", testFetchMultipleSentMessageInOneBlock)
+	// Run l1 relayer test cases.
+	t.Run("TestCreateNewL1Relayer", testCreateNewL1Relayer)
+	t.Run("TestL1RelayerProcessSaveEvents", testL1RelayerProcessSaveEvents)
+	t.Run("TestL1RelayerMsgConfirm", testL1RelayerMsgConfirm)
+	t.Run("TestL1RelayerGasOracleConfirm", testL1RelayerGasOracleConfirm)
+	t.Run("TestL1RelayerProcessGasPriceOracle", testL1RelayerProcessGasPriceOracle)
 
 	// Run l2 relayer test cases.
 	t.Run("TestCreateNewRelayer", testCreateNewRelayer)
 	t.Run("TestL2RelayerProcessSaveEvents", testL2RelayerProcessSaveEvents)
 	t.Run("TestL2RelayerProcessCommittedBatches", testL2RelayerProcessCommittedBatches)
 	t.Run("TestL2RelayerSkipBatches", testL2RelayerSkipBatches)
-
-	// Run batch proposer test cases.
-	t.Run("TestBatchProposerProposeBatch", testBatchProposerProposeBatch)
-	t.Run("TestBatchProposerGracefulRestart", testBatchProposerGracefulRestart)
-
+	t.Run("TestL2RelayerMsgConfirm", testL2RelayerMsgConfirm)
+	t.Run("TestL2RelayerRollupConfirm", testL2RelayerRollupConfirm)
+	t.Run("TestL2RelayerGasOracleConfirm", testL2RelayerGasOracleConfirm)
+	t.Run("TestLayer2RelayerProcessGasPriceOracle", testLayer2RelayerProcessGasPriceOracle)
+	t.Run("TestLayer2RelayerSendCommitTx", testLayer2RelayerSendCommitTx)
 }

bridge/sender/account_pool.go

@@ -23,10 +23,6 @@ type accountPool struct {
 
 // newAccounts creates an accountPool instance.
 func newAccountPool(ctx context.Context, minBalance *big.Int, client *ethclient.Client, privs []*ecdsa.PrivateKey) (*accountPool, error) {
-	if minBalance == nil {
-		minBalance = big.NewInt(0)
-		minBalance.SetString("100000000000000000000", 10)
-	}
 	accs := &accountPool{
 		client:     client,
 		minBalance: minBalance,

bridge/sender/sender.go

@@ -6,21 +6,19 @@ import (
 	"errors"
 	"fmt"
 	"math/big"
-	"reflect"
 	"strings"
-	"sync"
 	"sync/atomic"
 	"time"
 
+	cmapV2 "github.com/orcaman/concurrent-map/v2"
 	"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/ethclient"
 	"github.com/scroll-tech/go-ethereum/log"
 
-	"scroll-tech/bridge/utils"
-
 	"scroll-tech/bridge/config"
+	"scroll-tech/bridge/utils"
 )
 
 const (
@@ -37,6 +35,12 @@ const (
 var (
 	// ErrNoAvailableAccount indicates no available account error in the account pool.
 	ErrNoAvailableAccount = errors.New("sender has no available account to send transaction")
+	// ErrFullPending sender's pending pool is full.
+	ErrFullPending = errors.New("sender's pending pool is full")
+)
+
+var (
+	defaultPendingLimit = 10
 )
 
 // Confirmation struct used to indicate transaction confirmation details
@@ -74,9 +78,9 @@ type Sender struct {
 	// account fields.
 	auths *accountPool
 
-	blockNumber   uint64   // Current block number on chain.
-	baseFeePerGas uint64   // Current base fee per gas on chain
-	pendingTxs    sync.Map // Mapping from nonce to pending transaction
+	blockNumber   uint64                                            // Current block number on chain.
+	baseFeePerGas uint64                                            // Current base fee per gas on chain
+	pendingTxs    cmapV2.ConcurrentMap[string, *PendingTransaction] // Mapping from nonce to pending transaction
 	confirmCh     chan *Confirmation
 
 	stopCh chan struct{}
@@ -116,6 +120,11 @@ func NewSender(ctx context.Context, config *config.SenderConfig, privs []*ecdsa.
 		}
 	}
 
+	// initialize pending limit with a default value
+	if config.PendingLimit == 0 {
+		config.PendingLimit = defaultPendingLimit
+	}
+
 	sender := &Sender{
 		ctx:           ctx,
 		config:        config,
@@ -125,7 +134,7 @@ func NewSender(ctx context.Context, config *config.SenderConfig, privs []*ecdsa.
 		confirmCh:     make(chan *Confirmation, 128),
 		blockNumber:   header.Number.Uint64(),
 		baseFeePerGas: baseFeePerGas,
-		pendingTxs:    sync.Map{},
+		pendingTxs:    cmapV2.New[*PendingTransaction](),
 		stopCh:        make(chan struct{}),
 	}
 
@@ -134,6 +143,21 @@ func NewSender(ctx context.Context, config *config.SenderConfig, privs []*ecdsa.
 	return sender, nil
 }
 
+// PendingCount returns the current number of pending txs.
+func (s *Sender) PendingCount() int {
+	return s.pendingTxs.Count()
+}
+
+// PendingLimit returns the maximum number of pending txs the sender can handle.
+func (s *Sender) PendingLimit() int {
+	return s.config.PendingLimit
+}
+
+// IsFull returns true if the sender's pending tx pool is full.
+func (s *Sender) IsFull() bool {
+	return s.pendingTxs.Count() >= s.config.PendingLimit
+}
+
 // Stop stop the sender module.
 func (s *Sender) Stop() {
 	close(s.stopCh)
@@ -145,6 +169,12 @@ func (s *Sender) ConfirmChan() <-chan *Confirmation {
 	return s.confirmCh
 }
 
+// SendConfirmation sends a confirmation to the confirmation channel.
+// Note: This function is only used in tests.
+func (s *Sender) SendConfirmation(cfm *Confirmation) {
+	s.confirmCh <- cfm
+}
+
 // NumberOfAccounts return the count of accounts.
 func (s *Sender) NumberOfAccounts() int {
 	return len(s.auths.accounts)
@@ -159,21 +189,24 @@ func (s *Sender) getFeeData(auth *bind.TransactOpts, target *common.Address, val
 
 // SendTransaction send a signed L2tL1 transaction.
 func (s *Sender) SendTransaction(ID string, target *common.Address, value *big.Int, data []byte, minGasLimit uint64) (hash common.Hash, err error) {
+	if s.IsFull() {
+		return common.Hash{}, ErrFullPending
+	}
 	// We occupy the ID, in case some other threads call with the same ID in the same time
-	if _, loaded := s.pendingTxs.LoadOrStore(ID, nil); loaded {
+	if ok := s.pendingTxs.SetIfAbsent(ID, nil); !ok {
 		return common.Hash{}, fmt.Errorf("has the repeat tx ID, ID: %s", ID)
 	}
 	// get
 	auth := s.auths.getAccount()
 	if auth == nil {
-		s.pendingTxs.Delete(ID) // release the ID on failure
+		s.pendingTxs.Remove(ID) // release the ID on failure
 		return common.Hash{}, ErrNoAvailableAccount
 	}
 
 	defer s.auths.releaseAccount(auth)
 	defer func() {
 		if err != nil {
-			s.pendingTxs.Delete(ID) // release the ID on failure
+			s.pendingTxs.Remove(ID) // release the ID on failure
 		}
 	}()
 
@@ -194,7 +227,7 @@ func (s *Sender) SendTransaction(ID string, target *common.Address, value *big.I
 			submitAt: atomic.LoadUint64(&s.blockNumber),
 			feeData:  feeData,
 		}
-		s.pendingTxs.Store(ID, pending)
+		s.pendingTxs.Set(ID, pending)
 		return tx.Hash(), nil
 	}
 
@@ -335,17 +368,17 @@ func (s *Sender) checkPendingTransaction(header *types.Header, confirmed uint64)
 		}
 	}
 
-	s.pendingTxs.Range(func(key, value interface{}) bool {
+	for item := range s.pendingTxs.IterBuffered() {
+		key, pending := item.Key, item.Val
 		// ignore empty id, since we use empty id to occupy pending task
-		if value == nil || reflect.ValueOf(value).IsNil() {
-			return true
+		if pending == nil {
+			continue
 		}
 
-		pending := value.(*PendingTransaction)
 		receipt, err := s.client.TransactionReceipt(s.ctx, pending.tx.Hash())
 		if (err == nil) && (receipt != nil) {
 			if receipt.BlockNumber.Uint64() <= confirmed {
-				s.pendingTxs.Delete(key)
+				s.pendingTxs.Remove(key)
 				// send confirm message
 				s.confirmCh <- &Confirmation{
 					ID:           pending.id,
@@ -376,7 +409,7 @@ func (s *Sender) checkPendingTransaction(header *types.Header, confirmed uint64)
 				// We need to stop the program and manually handle the situation.
 				if strings.Contains(err.Error(), "nonce") {
 					// This key can be deleted
-					s.pendingTxs.Delete(key)
+					s.pendingTxs.Remove(key)
 					// Try get receipt by the latest replaced tx hash
 					receipt, err := s.client.TransactionReceipt(s.ctx, pending.tx.Hash())
 					if (err == nil) && (receipt != nil) {
@@ -398,8 +431,7 @@ func (s *Sender) checkPendingTransaction(header *types.Header, confirmed uint64)
 				pending.submitAt = number
 			}
 		}
-		return true
-	})
+	}
 }
 
 // Loop is the main event loop

bridge/sender/sender_test.go

@@ -1,4 +1,4 @@
-package sender_test
+package sender
 
 import (
 	"context"
@@ -13,6 +13,7 @@ import (
 
 	cmap "github.com/orcaman/concurrent-map"
 	"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"
@@ -21,7 +22,6 @@ import (
 	"scroll-tech/common/docker"
 
 	"scroll-tech/bridge/config"
-	"scroll-tech/bridge/sender"
 )
 
 const TXBatch = 50
@@ -30,6 +30,7 @@ var (
 	privateKeys []*ecdsa.PrivateKey
 	cfg         *config.Config
 	base        *docker.App
+	txTypes     = []string{"LegacyTx", "AccessListTx", "DynamicFeeTx"}
 )
 
 func TestMain(m *testing.M) {
@@ -50,107 +51,166 @@ func setupEnv(t *testing.T) {
 	// Load default private key.
 	privateKeys = []*ecdsa.PrivateKey{priv}
 
-	cfg.L1Config.RelayerConfig.SenderConfig.Endpoint = base.L2GethEndpoint()
+	cfg.L1Config.RelayerConfig.SenderConfig.Endpoint = base.L1gethImg.Endpoint()
+	cfg.L1Config.RelayerConfig.SenderConfig.CheckBalanceTime = 1
 }
 
 func TestSender(t *testing.T) {
 	// Setup
 	setupEnv(t)
 
-	t.Run("test min gas limit", func(t *testing.T) { testMinGasLimit(t) })
+	t.Run("test new sender", testNewSender)
+	t.Run("test pending limit", testPendLimit)
+
+	t.Run("test min gas limit", testMinGasLimit)
+	t.Run("test resubmit transaction", func(t *testing.T) { testResubmitTransaction(t) })
 
 	t.Run("test 1 account sender", func(t *testing.T) { testBatchSender(t, 1) })
 	t.Run("test 3 account sender", func(t *testing.T) { testBatchSender(t, 3) })
 	t.Run("test 8 account sender", func(t *testing.T) { testBatchSender(t, 8) })
 }
 
+func testNewSender(t *testing.T) {
+	for _, txType := range txTypes {
+		// exit by Stop()
+		cfgCopy1 := *cfg.L1Config.RelayerConfig.SenderConfig
+		cfgCopy1.TxType = txType
+		newSender1, err := NewSender(context.Background(), &cfgCopy1, privateKeys)
+		assert.NoError(t, err)
+		newSender1.Stop()
+
+		// exit by ctx.Done()
+		cfgCopy2 := *cfg.L1Config.RelayerConfig.SenderConfig
+		cfgCopy2.TxType = txType
+		subCtx, cancel := context.WithCancel(context.Background())
+		_, err = NewSender(subCtx, &cfgCopy2, privateKeys)
+		assert.NoError(t, err)
+		cancel()
+	}
+}
+
+func testPendLimit(t *testing.T) {
+	for _, txType := range txTypes {
+		cfgCopy := *cfg.L1Config.RelayerConfig.SenderConfig
+		cfgCopy.TxType = txType
+		cfgCopy.Confirmations = rpc.LatestBlockNumber
+		cfgCopy.PendingLimit = 2
+		newSender, err := NewSender(context.Background(), &cfgCopy, privateKeys)
+		assert.NoError(t, err)
+
+		for i := 0; i < 2*newSender.PendingLimit(); i++ {
+			_, err = newSender.SendTransaction(strconv.Itoa(i), &common.Address{}, big.NewInt(1), nil, 0)
+			assert.True(t, err == nil || (err != nil && err.Error() == "sender's pending pool is full"))
+		}
+		assert.True(t, newSender.PendingCount() <= newSender.PendingLimit())
+		newSender.Stop()
+	}
+}
+
 func testMinGasLimit(t *testing.T) {
-	senderCfg := cfg.L1Config.RelayerConfig.SenderConfig
-	senderCfg.Confirmations = rpc.LatestBlockNumber
-	newSender, err := sender.NewSender(context.Background(), senderCfg, privateKeys)
-	assert.NoError(t, err)
-	defer newSender.Stop()
+	for _, txType := range txTypes {
+		cfgCopy := *cfg.L1Config.RelayerConfig.SenderConfig
+		cfgCopy.TxType = txType
+		cfgCopy.Confirmations = rpc.LatestBlockNumber
+		newSender, err := NewSender(context.Background(), &cfgCopy, privateKeys)
+		assert.NoError(t, err)
 
-	client, err := ethclient.Dial(senderCfg.Endpoint)
-	assert.NoError(t, err)
+		client, err := ethclient.Dial(cfgCopy.Endpoint)
+		assert.NoError(t, err)
 
-	// MinGasLimit = 0
-	txHash0, err := newSender.SendTransaction("0", &common.Address{}, big.NewInt(1), nil, 0)
-	assert.NoError(t, err)
-	tx0, _, err := client.TransactionByHash(context.Background(), txHash0)
-	assert.NoError(t, err)
-	assert.Greater(t, tx0.Gas(), uint64(0))
+		// MinGasLimit = 0
+		txHash0, err := newSender.SendTransaction("0", &common.Address{}, big.NewInt(1), nil, 0)
+		assert.NoError(t, err)
+		tx0, _, err := client.TransactionByHash(context.Background(), txHash0)
+		assert.NoError(t, err)
+		assert.Greater(t, tx0.Gas(), uint64(0))
 
-	// MinGasLimit = 100000
-	txHash1, err := newSender.SendTransaction("1", &common.Address{}, big.NewInt(1), nil, 100000)
-	assert.NoError(t, err)
-	tx1, _, err := client.TransactionByHash(context.Background(), txHash1)
-	assert.NoError(t, err)
-	assert.Equal(t, tx1.Gas(), uint64(150000))
+		// MinGasLimit = 100000
+		txHash1, err := newSender.SendTransaction("1", &common.Address{}, big.NewInt(1), nil, 100000)
+		assert.NoError(t, err)
+		tx1, _, err := client.TransactionByHash(context.Background(), txHash1)
+		assert.NoError(t, err)
+		assert.Equal(t, tx1.Gas(), uint64(150000))
+
+		newSender.Stop()
+	}
+}
+
+func testResubmitTransaction(t *testing.T) {
+	for _, txType := range txTypes {
+		cfgCopy := *cfg.L1Config.RelayerConfig.SenderConfig
+		cfgCopy.TxType = txType
+		s, err := NewSender(context.Background(), &cfgCopy, privateKeys)
+		assert.NoError(t, err)
+		auth := s.auths.getAccount()
+		tx := types.NewTransaction(auth.Nonce.Uint64(), common.Address{}, big.NewInt(0), 0, big.NewInt(0), nil)
+		feeData, err := s.getFeeData(auth, &common.Address{}, big.NewInt(0), nil, 0)
+		assert.NoError(t, err)
+		_, err = s.resubmitTransaction(feeData, auth, tx)
+		assert.NoError(t, err)
+		s.Stop()
+	}
 }
 
 func testBatchSender(t *testing.T, batchSize int) {
-	for len(privateKeys) < batchSize {
-		priv, err := crypto.GenerateKey()
-		if err != nil {
-			t.Fatal(err)
+	for _, txType := range txTypes {
+		for len(privateKeys) < batchSize {
+			priv, err := crypto.GenerateKey()
+			assert.NoError(t, err)
+			privateKeys = append(privateKeys, priv)
 		}
-		privateKeys = append(privateKeys, priv)
-	}
 
-	senderCfg := cfg.L1Config.RelayerConfig.SenderConfig
-	senderCfg.Confirmations = rpc.LatestBlockNumber
-	newSender, err := sender.NewSender(context.Background(), senderCfg, privateKeys)
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer newSender.Stop()
+		cfgCopy := *cfg.L1Config.RelayerConfig.SenderConfig
+		cfgCopy.Confirmations = rpc.LatestBlockNumber
+		cfgCopy.PendingLimit = batchSize * TXBatch
+		cfgCopy.TxType = txType
+		newSender, err := NewSender(context.Background(), &cfgCopy, privateKeys)
+		assert.NoError(t, err)
 
-	// send transactions
-	var (
-		eg        errgroup.Group
-		idCache   = cmap.New()
-		confirmCh = newSender.ConfirmChan()
-	)
-	for idx := 0; idx < newSender.NumberOfAccounts(); idx++ {
-		index := idx
-		eg.Go(func() error {
-			for i := 0; i < TXBatch; i++ {
-				toAddr := common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
-				id := strconv.Itoa(i + index*1000)
-				_, err := newSender.SendTransaction(id, &toAddr, big.NewInt(1), nil, 0)
-				if errors.Is(err, sender.ErrNoAvailableAccount) {
-					<-time.After(time.Second)
-					continue
+		// send transactions
+		var (
+			eg        errgroup.Group
+			idCache   = cmap.New()
+			confirmCh = newSender.ConfirmChan()
+		)
+		for idx := 0; idx < newSender.NumberOfAccounts(); idx++ {
+			index := idx
+			eg.Go(func() error {
+				for i := 0; i < TXBatch; i++ {
+					toAddr := common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
+					id := strconv.Itoa(i + index*1000)
+					_, err := newSender.SendTransaction(id, &toAddr, big.NewInt(1), nil, 0)
+					if errors.Is(err, ErrNoAvailableAccount) || errors.Is(err, ErrFullPending) {
+						<-time.After(time.Second)
+						continue
+					}
+					assert.NoError(t, err)
+					idCache.Set(id, struct{}{})
 				}
-				if err != nil {
-					return err
-				}
-				idCache.Set(id, struct{}{})
-			}
-			return nil
-		})
-	}
-	if err := eg.Wait(); err != nil {
-		t.Error(err)
-	}
-	t.Logf("successful send batch txs, batch size: %d, total count: %d", newSender.NumberOfAccounts(), TXBatch*newSender.NumberOfAccounts())
-
-	// avoid 10 mins cause testcase panic
-	after := time.After(80 * time.Second)
-	for {
-		select {
-		case cmsg := <-confirmCh:
-			assert.Equal(t, true, cmsg.IsSuccessful)
-			_, exist := idCache.Pop(cmsg.ID)
-			assert.Equal(t, true, exist)
-			// Receive all confirmed txs.
-			if idCache.Count() == 0 {
-				return
-			}
-		case <-after:
-			t.Error("newSender test failed because of timeout")
-			return
+				return nil
+			})
 		}
+		assert.NoError(t, eg.Wait())
+		t.Logf("successful send batch txs, batch size: %d, total count: %d", newSender.NumberOfAccounts(), TXBatch*newSender.NumberOfAccounts())
+
+		// avoid 10 mins cause testcase panic
+		after := time.After(80 * time.Second)
+		isDone := false
+		for !isDone {
+			select {
+			case cmsg := <-confirmCh:
+				assert.Equal(t, true, cmsg.IsSuccessful)
+				_, exist := idCache.Pop(cmsg.ID)
+				assert.Equal(t, true, exist)
+				// Receive all confirmed txs.
+				if idCache.Count() == 0 {
+					isDone = true
+				}
+			case <-after:
+				t.Error("newSender test failed because of timeout")
+				isDone = true
+			}
+		}
+		newSender.Stop()
 	}
 }

bridge/tests/bridge_test.go

@@ -82,15 +82,15 @@ func setupEnv(t *testing.T) {
 	base.RunImages(t)
 
 	// Create l1geth container.
-	cfg.L2Config.RelayerConfig.SenderConfig.Endpoint = base.L1GethEndpoint()
-	cfg.L1Config.Endpoint = base.L1GethEndpoint()
+	cfg.L2Config.RelayerConfig.SenderConfig.Endpoint = base.L1gethImg.Endpoint()
+	cfg.L1Config.Endpoint = base.L1gethImg.Endpoint()
 
 	// Create l2geth container.
-	cfg.L1Config.RelayerConfig.SenderConfig.Endpoint = base.L2GethEndpoint()
-	cfg.L2Config.Endpoint = base.L2GethEndpoint()
+	cfg.L1Config.RelayerConfig.SenderConfig.Endpoint = base.L2gethImg.Endpoint()
+	cfg.L2Config.Endpoint = base.L2gethImg.Endpoint()
 
 	// Create db container.
-	cfg.DBConfig.DSN = base.DBEndpoint()
+	cfg.DBConfig = base.DBConfig
 
 	// Create l1geth and l2geth client.
 	l1Client, err = ethclient.Dial(cfg.L1Config.Endpoint)

bridge/tests/gas_oracle_test.go

@@ -11,8 +11,8 @@ import (
 
 	"scroll-tech/common/types"
 
-	"scroll-tech/bridge/l1"
-	"scroll-tech/bridge/l2"
+	"scroll-tech/bridge/relayer"
+	"scroll-tech/bridge/watcher"
 
 	"scroll-tech/database"
 	"scroll-tech/database/migrate"
@@ -30,14 +30,13 @@ func testImportL1GasPrice(t *testing.T) {
 	l1Cfg := cfg.L1Config
 
 	// Create L1Relayer
-	l1Relayer, err := l1.NewLayer1Relayer(context.Background(), db, l1Cfg.RelayerConfig)
+	l1Relayer, err := relayer.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)
+	l1Watcher := watcher.NewL1WatcherClient(context.Background(), l1Client, startHeight-1, 0, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db)
 
 	// fetch new blocks
 	number, err := l1Client.BlockNumber(context.Background())
@@ -81,9 +80,8 @@ func testImportL2GasPrice(t *testing.T) {
 	l2Cfg := cfg.L2Config
 
 	// Create L2Relayer
-	l2Relayer, err := l2.NewLayer2Relayer(context.Background(), l2Client, db, l2Cfg.RelayerConfig)
+	l2Relayer, err := relayer.NewLayer2Relayer(context.Background(), l2Client, db, l2Cfg.RelayerConfig)
 	assert.NoError(t, err)
-	defer l2Relayer.Stop()
 
 	// add fake blocks
 	traces := []*types.WrappedBlock{

bridge/tests/l1_message_relay_test.go

@@ -13,8 +13,8 @@ import (
 
 	"scroll-tech/common/types"
 
-	"scroll-tech/bridge/l1"
-	"scroll-tech/bridge/l2"
+	"scroll-tech/bridge/relayer"
+	"scroll-tech/bridge/watcher"
 
 	"scroll-tech/database"
 	"scroll-tech/database/migrate"
@@ -33,16 +33,14 @@ func testRelayL1MessageSucceed(t *testing.T) {
 	l2Cfg := cfg.L2Config
 
 	// Create L1Relayer
-	l1Relayer, err := l1.NewLayer1Relayer(context.Background(), db, l1Cfg.RelayerConfig)
+	l1Relayer, err := relayer.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)
+	l1Watcher := watcher.NewL1WatcherClient(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, l2Cfg.WithdrawTrieRootSlot, db)
+	l2Watcher := watcher.NewL2WatcherClient(context.Background(), l2Client, confirmations, l2Cfg.L2MessengerAddress, l2Cfg.L2MessageQueueAddress, l2Cfg.WithdrawTrieRootSlot, db)
 
 	// send message through l1 messenger contract
 	nonce, err := l1MessengerInstance.MessageNonce(&bind.CallOpts{})
@@ -56,7 +54,7 @@ func testRelayL1MessageSucceed(t *testing.T) {
 	}
 
 	// l1 watch process events
-	l1Watcher.FetchContractEvent(sendReceipt.BlockNumber.Uint64())
+	l1Watcher.FetchContractEvent()
 
 	// check db status
 	msg, err := db.GetL1MessageByQueueIndex(nonce.Uint64())
@@ -79,7 +77,7 @@ func testRelayL1MessageSucceed(t *testing.T) {
 	assert.Equal(t, len(relayTxReceipt.Logs), 1)
 
 	// fetch message relayed events
-	l2Watcher.FetchContractEvent(relayTxReceipt.BlockNumber.Uint64())
+	l2Watcher.FetchContractEvent()
 	msg, err = db.GetL1MessageByQueueIndex(nonce.Uint64())
 	assert.NoError(t, err)
 	assert.Equal(t, msg.Status, types.MsgConfirmed)

bridge/tests/l2_message_relay_test.go

@@ -13,8 +13,8 @@ import (
 
 	"scroll-tech/common/types"
 
-	"scroll-tech/bridge/l1"
-	"scroll-tech/bridge/l2"
+	"scroll-tech/bridge/relayer"
+	"scroll-tech/bridge/watcher"
 
 	"scroll-tech/database"
 	"scroll-tech/database/migrate"
@@ -33,15 +33,15 @@ func testRelayL2MessageSucceed(t *testing.T) {
 
 	// Create L2Watcher
 	confirmations := rpc.LatestBlockNumber
-	l2Watcher := l2.NewL2WatcherClient(context.Background(), l2Client, confirmations, l2Cfg.L2MessengerAddress, l2Cfg.L2MessageQueueAddress, l2Cfg.WithdrawTrieRootSlot, db)
+	l2Watcher := watcher.NewL2WatcherClient(context.Background(), l2Client, confirmations, l2Cfg.L2MessengerAddress, l2Cfg.L2MessageQueueAddress, l2Cfg.WithdrawTrieRootSlot, db)
 
 	// Create L2Relayer
-	l2Relayer, err := l2.NewLayer2Relayer(context.Background(), l2Client, db, l2Cfg.RelayerConfig)
+	l2Relayer, err := relayer.NewLayer2Relayer(context.Background(), l2Client, db, l2Cfg.RelayerConfig)
 	assert.NoError(t, err)
 
 	// Create L1Watcher
 	l1Cfg := cfg.L1Config
-	l1Watcher := l1.NewWatcher(context.Background(), l1Client, 0, confirmations, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db)
+	l1Watcher := watcher.NewL1WatcherClient(context.Background(), l1Client, 0, confirmations, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db)
 
 	// send message through l2 messenger contract
 	nonce, err := l2MessengerInstance.MessageNonce(&bind.CallOpts{})
@@ -55,7 +55,7 @@ func testRelayL2MessageSucceed(t *testing.T) {
 	}
 
 	// l2 watch process events
-	l2Watcher.FetchContractEvent(sendReceipt.BlockNumber.Uint64())
+	l2Watcher.FetchContractEvent()
 
 	// check db status
 	msg, err := db.GetL2MessageByNonce(nonce.Uint64())
@@ -123,7 +123,7 @@ func testRelayL2MessageSucceed(t *testing.T) {
 	assert.Equal(t, len(commitTxReceipt.Logs), 1)
 
 	// fetch CommitBatch rollup events
-	err = l1Watcher.FetchContractEvent(commitTxReceipt.BlockNumber.Uint64())
+	err = l1Watcher.FetchContractEvent()
 	assert.NoError(t, err)
 	status, err = db.GetRollupStatus(batchHash)
 	assert.NoError(t, err)
@@ -144,7 +144,7 @@ func testRelayL2MessageSucceed(t *testing.T) {
 	assert.Equal(t, len(finalizeTxReceipt.Logs), 1)
 
 	// fetch FinalizeBatch events
-	err = l1Watcher.FetchContractEvent(finalizeTxReceipt.BlockNumber.Uint64())
+	err = l1Watcher.FetchContractEvent()
 	assert.NoError(t, err)
 	status, err = db.GetRollupStatus(batchHash)
 	assert.NoError(t, err)
@@ -165,7 +165,7 @@ func testRelayL2MessageSucceed(t *testing.T) {
 	assert.Equal(t, len(relayTxReceipt.Logs), 1)
 
 	// fetch message relayed events
-	err = l1Watcher.FetchContractEvent(relayTxReceipt.BlockNumber.Uint64())
+	err = l1Watcher.FetchContractEvent()
 	assert.NoError(t, err)
 	msg, err = db.GetL2MessageByNonce(nonce.Uint64())
 	assert.NoError(t, err)

bridge/tests/rollup_test.go

@@ -12,8 +12,8 @@ import (
 
 	"scroll-tech/common/types"
 
-	"scroll-tech/bridge/l1"
-	"scroll-tech/bridge/l2"
+	"scroll-tech/bridge/relayer"
+	"scroll-tech/bridge/watcher"
 
 	"scroll-tech/database"
 	"scroll-tech/database/migrate"
@@ -30,13 +30,12 @@ func testCommitBatchAndFinalizeBatch(t *testing.T) {
 
 	// Create L2Relayer
 	l2Cfg := cfg.L2Config
-	l2Relayer, err := l2.NewLayer2Relayer(context.Background(), l2Client, db, l2Cfg.RelayerConfig)
+	l2Relayer, err := relayer.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, l1Cfg.Confirmations, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db)
+	l1Watcher := watcher.NewL1WatcherClient(context.Background(), l1Client, 0, l1Cfg.Confirmations, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.ScrollChainContractAddress, db)
 
 	// add some blocks to db
 	var wrappedBlocks []*types.WrappedBlock
@@ -96,7 +95,7 @@ func testCommitBatchAndFinalizeBatch(t *testing.T) {
 	assert.Equal(t, len(commitTxReceipt.Logs), 1)
 
 	// fetch rollup events
-	err = l1Watcher.FetchContractEvent(commitTxReceipt.BlockNumber.Uint64())
+	err = l1Watcher.FetchContractEvent()
 	assert.NoError(t, err)
 	status, err = db.GetRollupStatus(batchHash)
 	assert.NoError(t, err)
@@ -126,7 +125,7 @@ func testCommitBatchAndFinalizeBatch(t *testing.T) {
 	assert.Equal(t, len(finalizeTxReceipt.Logs), 1)
 
 	// fetch rollup events
-	err = l1Watcher.FetchContractEvent(finalizeTxReceipt.BlockNumber.Uint64())
+	err = l1Watcher.FetchContractEvent()
 	assert.NoError(t, err)
 	status, err = db.GetRollupStatus(batchHash)
 	assert.NoError(t, err)

bridge/utils/confirmation_test.go

@@ -1,4 +1,4 @@
-package utils_test
+package utils
 
 import (
 	"context"
@@ -11,8 +11,6 @@ import (
 	"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 (
@@ -65,15 +63,14 @@ func TestMarshalJSON(t *testing.T) {
 	for i, test := range tests {
 		var num rpc.BlockNumber
 		want, err := json.Marshal(test.expected)
-		assert.Nil(t, err)
+		assert.NoError(t, err)
 		if !test.mustFail {
 			err = json.Unmarshal([]byte(test.input), &num)
-			assert.Nil(t, err)
+			assert.NoError(t, err)
 			got, err := json.Marshal(&num)
-			assert.Nil(t, err)
+			assert.NoError(t, err)
 			if string(want) != string(got) {
 				t.Errorf("Test %d got unexpected value, want %d, got %d", i, test.expected, num)
-
 			}
 		}
 	}
@@ -88,20 +85,50 @@ func (e MockEthClient) BlockNumber(ctx context.Context) (uint64, error) {
 }
 
 func (e MockEthClient) HeaderByNumber(ctx context.Context, number *big.Int) (*types.Header, error) {
-	return &types.Header{Number: new(big.Int).SetUint64(e.val)}, nil
+	var blockNumber int64
+	switch number.Int64() {
+	case int64(rpc.LatestBlockNumber):
+		blockNumber = int64(e.val)
+	case int64(rpc.SafeBlockNumber):
+		blockNumber = int64(e.val) - 6
+	case int64(rpc.FinalizedBlockNumber):
+		blockNumber = int64(e.val) - 12
+	default:
+		blockNumber = number.Int64()
+	}
+	if blockNumber < 0 {
+		blockNumber = 0
+	}
+
+	return &types.Header{Number: new(big.Int).SetInt64(blockNumber)}, 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)
+	testCases := []struct {
+		blockNumber    uint64
+		confirmation   rpc.BlockNumber
+		expectedResult uint64
+	}{
+		{5, 6, 0},
+		{7, 6, 1},
+		{10, 2, 8},
+		{0, 1, 0},
+		{3, 0, 3},
+		{15, 15, 0},
+		{16, rpc.SafeBlockNumber, 10},
+		{22, rpc.FinalizedBlockNumber, 10},
+		{10, rpc.LatestBlockNumber, 10},
+		{5, rpc.SafeBlockNumber, 0},
+		{11, rpc.FinalizedBlockNumber, 0},
+	}
 
-	client.val = 7
-	confirmed, err = utils.GetLatestConfirmedBlockNumber(ctx, &client, 6)
-	assert.Nil(t, err)
-	assert.Equal(t, uint64(1), confirmed)
+	for _, testCase := range testCases {
+		client.val = testCase.blockNumber
+		confirmed, err := GetLatestConfirmedBlockNumber(ctx, &client, testCase.confirmation)
+		assert.NoError(t, err)
+		assert.Equal(t, testCase.expectedResult, confirmed)
+	}
 }

bridge/utils/utils.go

@@ -29,19 +29,6 @@ func ComputeMessageHash(
 	return common.BytesToHash(crypto.Keccak256(data))
 }
 
-// BufferToUint256Be convert bytes array to uint256 array assuming big-endian
-func BufferToUint256Be(buffer []byte) []*big.Int {
-	buffer256 := make([]*big.Int, len(buffer)/32)
-	for i := 0; i < len(buffer)/32; i++ {
-		buffer256[i] = big.NewInt(0)
-		for j := 0; j < 32; j++ {
-			buffer256[i] = buffer256[i].Lsh(buffer256[i], 8)
-			buffer256[i] = buffer256[i].Add(buffer256[i], big.NewInt(int64(buffer[i*32+j])))
-		}
-	}
-	return buffer256
-}
-
 // BufferToUint256Le convert bytes array to uint256 array assuming little-endian
 func BufferToUint256Le(buffer []byte) []*big.Int {
 	buffer256 := make([]*big.Int, len(buffer)/32)
@@ -76,23 +63,3 @@ func UnpackLog(c *abi.ABI, out interface{}, event string, log types.Log) error {
 	}
 	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

@@ -1,34 +1,32 @@
-package utils_test
+package utils
 
 import (
 	"math/big"
 	"testing"
 
-	"scroll-tech/bridge/utils"
-
 	"github.com/scroll-tech/go-ethereum/common"
 	"github.com/stretchr/testify/assert"
 )
 
 func TestKeccak2(t *testing.T) {
-	hash := utils.Keccak2(common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000000"), common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000000"))
+	hash := Keccak2(common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000000"), common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000000"))
 	if hash != common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5") {
 		t.Fatalf("Invalid keccak, want %s, got %s", "0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5", hash.Hex())
 	}
 
-	hash = utils.Keccak2(common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5"), common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5"))
+	hash = Keccak2(common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5"), common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5"))
 	if hash != common.HexToHash("0xb4c11951957c6f8f642c4af61cd6b24640fec6dc7fc607ee8206a99e92410d30") {
 		t.Fatalf("Invalid keccak, want %s, got %s", "0xb4c11951957c6f8f642c4af61cd6b24640fec6dc7fc607ee8206a99e92410d30", hash.Hex())
 	}
 
-	hash = utils.Keccak2(common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000001"), common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000002"))
+	hash = Keccak2(common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000001"), common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000002"))
 	if hash != common.HexToHash("0xe90b7bceb6e7df5418fb78d8ee546e97c83a08bbccc01a0644d599ccd2a7c2e0") {
 		t.Fatalf("Invalid keccak, want %s, got %s", "0xe90b7bceb6e7df5418fb78d8ee546e97c83a08bbccc01a0644d599ccd2a7c2e0", hash.Hex())
 	}
 }
 
 func TestComputeMessageHash(t *testing.T) {
-	hash := utils.ComputeMessageHash(
+	hash := ComputeMessageHash(
 		common.HexToAddress("0x1C5A77d9FA7eF466951B2F01F724BCa3A5820b63"),
 		common.HexToAddress("0x4592D8f8D7B001e72Cb26A73e4Fa1806a51aC79d"),
 		big.NewInt(0),
@@ -37,3 +35,15 @@ func TestComputeMessageHash(t *testing.T) {
 	)
 	assert.Equal(t, "0xda253c04595a49017bb54b1b46088c69752b5ad2f0c47971ac76b8b25abec202", hash.String())
 }
+
+func TestBufferToUint256Le(t *testing.T) {
+	input := []byte{
+		0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	}
+	expectedOutput := []*big.Int{big.NewInt(1)}
+	result := BufferToUint256Le(input)
+	assert.Equal(t, expectedOutput, result)
+}

bridge/watcher/batch_proposer.go

@@ -1,10 +1,9 @@
-package l2
+package watcher
 
 import (
 	"context"
 	"fmt"
 	"math"
-	"reflect"
 	"sync"
 	"time"
 
@@ -13,22 +12,22 @@ import (
 
 	"scroll-tech/common/metrics"
 	"scroll-tech/common/types"
-	"scroll-tech/common/utils"
 
 	"scroll-tech/database"
 
 	bridgeabi "scroll-tech/bridge/abi"
 	"scroll-tech/bridge/config"
+	"scroll-tech/bridge/relayer"
 )
 
 var (
 	bridgeL2BatchesGasOverThresholdTotalCounter = geth_metrics.NewRegisteredCounter("bridge/l2/batches/gas/over/threshold/total", metrics.ScrollRegistry)
 	bridgeL2BatchesTxsOverThresholdTotalCounter = geth_metrics.NewRegisteredCounter("bridge/l2/batches/txs/over/threshold/total", metrics.ScrollRegistry)
-	bridgeL2BatchesCommitTotalCounter           = geth_metrics.NewRegisteredCounter("bridge/l2/batches/commit/total", metrics.ScrollRegistry)
+	bridgeL2BatchesBlocksCreatedTotalCounter    = geth_metrics.NewRegisteredCounter("bridge/l2/batches/blocks/created/total", metrics.ScrollRegistry)
+	bridgeL2BatchesCommitsSentTotalCounter      = geth_metrics.NewRegisteredCounter("bridge/l2/batches/commits/sent/total", metrics.ScrollRegistry)
 
-	bridgeL2BatchesCreatedRateMeter    = geth_metrics.NewRegisteredMeter("bridge/l2/batches/blocks/created/rate", metrics.ScrollRegistry)
-	bridgeL2BatchesTxsCreatedRateMeter = geth_metrics.NewRegisteredMeter("bridge/l2/batches/txs/created/rate", metrics.ScrollRegistry)
-	bridgeL2BatchesGasCreatedRateMeter = geth_metrics.NewRegisteredMeter("bridge/l2/batches/gas/created/rate", metrics.ScrollRegistry)
+	bridgeL2BatchesTxsCreatedPerBatchGauge = geth_metrics.NewRegisteredGauge("bridge/l2/batches/txs/created/per/batch", metrics.ScrollRegistry)
+	bridgeL2BatchesGasCreatedPerBatchGauge = geth_metrics.NewRegisteredGauge("bridge/l2/batches/gas/created/per/batch", metrics.ScrollRegistry)
 )
 
 // AddBatchInfoToDB inserts the batch information to the BlockBatch table and updates the batch_hash
@@ -83,15 +82,13 @@ type BatchProposer struct {
 
 	proofGenerationFreq uint64
 	batchDataBuffer     []*types.BatchData
-	relayer             *Layer2Relayer
+	relayer             *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 {
+func NewBatchProposer(ctx context.Context, cfg *config.BatchProposerConfig, relayer *relayer.Layer2Relayer, orm database.OrmFactory) *BatchProposer {
 	p := &BatchProposer{
 		mutex:                    sync.Mutex{},
 		ctx:                      ctx,
@@ -107,42 +104,17 @@ func NewBatchProposer(ctx context.Context, cfg *config.BatchProposerConfig, rela
 		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()
+	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)
-
-		go utils.Loop(ctx, 2*time.Second, func() {
-			p.tryProposeBatch()
-			p.tryCommitBatches()
-		})
-
-		<-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)
@@ -214,7 +186,8 @@ func (p *BatchProposer) recoverBatchDataBuffer() {
 	}
 }
 
-func (p *BatchProposer) tryProposeBatch() {
+// TryProposeBatch will try to propose a batch.
+func (p *BatchProposer) TryProposeBatch() {
 	p.mutex.Lock()
 	defer p.mutex.Unlock()
 
@@ -243,7 +216,8 @@ func (p *BatchProposer) tryProposeBatch() {
 	}
 }
 
-func (p *BatchProposer) tryCommitBatches() {
+// TryCommitBatches will try to commit the pending batches.
+func (p *BatchProposer) TryCommitBatches() {
 	p.mutex.Lock()
 	defer p.mutex.Unlock()
 
@@ -283,7 +257,7 @@ func (p *BatchProposer) tryCommitBatches() {
 		log.Error("SendCommitTx failed", "error", err)
 	} else {
 		// pop the processed batches from the buffer
-		bridgeL2BatchesCommitTotalCounter.Inc(1)
+		bridgeL2BatchesCommitsSentTotalCounter.Inc(1)
 		p.batchDataBuffer = p.batchDataBuffer[index:]
 	}
 }
@@ -293,15 +267,49 @@ func (p *BatchProposer) proposeBatch(blocks []*types.BlockInfo) bool {
 		return false
 	}
 
+	approximatePayloadSize := func(hash string) (uint64, error) {
+		traces, err := p.orm.GetL2WrappedBlocks(map[string]interface{}{"hash": hash})
+		if err != nil {
+			return 0, err
+		}
+		if len(traces) != 1 {
+			return 0, fmt.Errorf("unexpected traces length, expected = 1, actual = %d", len(traces))
+		}
+		size := 0
+		for _, tx := range traces[0].Transactions {
+			size += len(tx.Data)
+		}
+		return uint64(size), nil
+	}
+
+	firstSize, err := approximatePayloadSize(blocks[0].Hash)
+	if err != nil {
+		log.Error("failed to create batch", "number", blocks[0].Number, "err", err)
+		return false
+	}
+
+	if firstSize > p.commitCalldataSizeLimit {
+		log.Warn("oversized payload even for only 1 block", "height", blocks[0].Number, "size", firstSize)
+		// note: we should probably fail here once we can ensure this will not happen
+		if err := p.createBatchForBlocks(blocks[:1]); err != nil {
+			log.Error("failed to create batch", "number", blocks[0].Number, "err", err)
+			return false
+		}
+		bridgeL2BatchesTxsCreatedPerBatchGauge.Update(int64(blocks[0].TxNum))
+		bridgeL2BatchesGasCreatedPerBatchGauge.Update(int64(blocks[0].GasUsed))
+		bridgeL2BatchesBlocksCreatedTotalCounter.Inc(1)
+		return true
+	}
+
 	if blocks[0].GasUsed > p.batchGasThreshold {
 		bridgeL2BatchesGasOverThresholdTotalCounter.Inc(1)
 		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)
 		} else {
-			bridgeL2BatchesTxsCreatedRateMeter.Mark(int64(blocks[0].TxNum))
-			bridgeL2BatchesGasCreatedRateMeter.Mark(int64(blocks[0].GasUsed))
-			bridgeL2BatchesCreatedRateMeter.Mark(1)
+			bridgeL2BatchesTxsCreatedPerBatchGauge.Update(int64(blocks[0].TxNum))
+			bridgeL2BatchesGasCreatedPerBatchGauge.Update(int64(blocks[0].GasUsed))
+			bridgeL2BatchesBlocksCreatedTotalCounter.Inc(1)
 		}
 		return true
 	}
@@ -312,24 +320,31 @@ func (p *BatchProposer) proposeBatch(blocks []*types.BlockInfo) bool {
 		if err := p.createBatchForBlocks(blocks[:1]); err != nil {
 			log.Error("failed to create batch", "number", blocks[0].Number, "err", err)
 		} else {
-			bridgeL2BatchesTxsCreatedRateMeter.Mark(int64(blocks[0].TxNum))
-			bridgeL2BatchesGasCreatedRateMeter.Mark(int64(blocks[0].GasUsed))
-			bridgeL2BatchesCreatedRateMeter.Mark(1)
+			bridgeL2BatchesTxsCreatedPerBatchGauge.Update(int64(blocks[0].TxNum))
+			bridgeL2BatchesGasCreatedPerBatchGauge.Update(int64(blocks[0].GasUsed))
+			bridgeL2BatchesBlocksCreatedTotalCounter.Inc(1)
 		}
 		return true
 	}
 
-	var gasUsed, txNum uint64
+	var gasUsed, txNum, payloadSize 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) {
+		size, err := approximatePayloadSize(block.Hash)
+		if err != nil {
+			log.Error("failed to create batch", "number", block.Number, "err", err)
+			return false
+		}
+
+		if (gasUsed+block.GasUsed > p.batchGasThreshold) || (txNum+block.TxNum > p.batchTxNumThreshold) || (payloadSize+size > p.commitCalldataSizeLimit) {
 			blocks = blocks[:i]
 			reachThreshold = true
 			break
 		}
 		gasUsed += block.GasUsed
 		txNum += block.TxNum
+		payloadSize += size
 	}
 
 	// if too few gas gathered, but we don't want to halt, we then check the first block in the batch:
@@ -342,9 +357,9 @@ func (p *BatchProposer) proposeBatch(blocks []*types.BlockInfo) bool {
 	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)
 	} else {
-		bridgeL2BatchesTxsCreatedRateMeter.Mark(int64(txNum))
-		bridgeL2BatchesGasCreatedRateMeter.Mark(int64(gasUsed))
-		bridgeL2BatchesCreatedRateMeter.Mark(int64(len(blocks)))
+		bridgeL2BatchesTxsCreatedPerBatchGauge.Update(int64(txNum))
+		bridgeL2BatchesGasCreatedPerBatchGauge.Update(int64(gasUsed))
+		bridgeL2BatchesBlocksCreatedTotalCounter.Inc(int64(len(blocks)))
 	}
 
 	return true

bridge/watcher/batch_proposer_test.go

@@ -0,0 +1,199 @@
+package watcher
+
+import (
+	"context"
+	"fmt"
+	"math"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/agiledragon/gomonkey/v2"
+	"github.com/scroll-tech/go-ethereum/common"
+	geth_types "github.com/scroll-tech/go-ethereum/core/types"
+	"github.com/stretchr/testify/assert"
+
+	"scroll-tech/database"
+	"scroll-tech/database/migrate"
+
+	"scroll-tech/bridge/config"
+	"scroll-tech/bridge/relayer"
+
+	"scroll-tech/common/types"
+)
+
+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()
+
+	p := &BatchProposer{
+		batchGasThreshold:       1000,
+		batchTxNumThreshold:     10,
+		batchTimeSec:            300,
+		commitCalldataSizeLimit: 500,
+		orm:                     db,
+	}
+	patchGuard := gomonkey.ApplyMethodFunc(p.orm, "GetL2WrappedBlocks", func(fields map[string]interface{}, args ...string) ([]*types.WrappedBlock, error) {
+		hash, _ := fields["hash"].(string)
+		if hash == "blockWithLongData" {
+			longData := strings.Repeat("0", 1000)
+			return []*types.WrappedBlock{{
+				Transactions: []*geth_types.TransactionData{{
+					Data: longData,
+				}},
+			}}, nil
+		}
+		return []*types.WrappedBlock{{
+			Transactions: []*geth_types.TransactionData{{
+				Data: "short",
+			}},
+		}}, nil
+	})
+	defer patchGuard.Reset()
+	patchGuard.ApplyPrivateMethod(p, "createBatchForBlocks", func(*BatchProposer, []*types.BlockInfo) error {
+		return nil
+	})
+
+	block1 := &types.BlockInfo{Number: 1, GasUsed: 100, TxNum: 1, BlockTimestamp: uint64(time.Now().Unix()) - 200}
+	block2 := &types.BlockInfo{Number: 2, GasUsed: 200, TxNum: 2, BlockTimestamp: uint64(time.Now().Unix())}
+	block3 := &types.BlockInfo{Number: 3, GasUsed: 300, TxNum: 11, BlockTimestamp: uint64(time.Now().Unix())}
+	block4 := &types.BlockInfo{Number: 4, GasUsed: 1001, TxNum: 3, BlockTimestamp: uint64(time.Now().Unix())}
+	blockOutdated := &types.BlockInfo{Number: 1, GasUsed: 100, TxNum: 1, BlockTimestamp: uint64(time.Now().Add(-400 * time.Second).Unix())}
+	blockWithLongData := &types.BlockInfo{Hash: "blockWithLongData", Number: 5, GasUsed: 500, TxNum: 1, BlockTimestamp: uint64(time.Now().Unix())}
+
+	testCases := []struct {
+		description string
+		blocks      []*types.BlockInfo
+		expectedRes bool
+	}{
+		{"Empty block list", []*types.BlockInfo{}, false},
+		{"Single block exceeding gas threshold", []*types.BlockInfo{block4}, true},
+		{"Single block exceeding transaction number threshold", []*types.BlockInfo{block3}, true},
+		{"Multiple blocks meeting thresholds", []*types.BlockInfo{block1, block2, block3}, true},
+		{"Multiple blocks not meeting thresholds", []*types.BlockInfo{block1, block2}, false},
+		{"Outdated and valid block", []*types.BlockInfo{blockOutdated, block2}, true},
+		{"Single block with long data", []*types.BlockInfo{blockWithLongData}, true},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.description, func(t *testing.T) {
+			assert.Equal(t, tc.expectedRes, p.proposeBatch(tc.blocks), "Failed on: %s", tc.description)
+		})
+	}
+}
+
+func testBatchProposerBatchGeneration(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))
+	ctx := context.Background()
+	subCtx, cancel := context.WithCancel(ctx)
+
+	defer func() {
+		cancel()
+		db.Close()
+	}()
+
+	// Insert traces into db.
+	assert.NoError(t, db.InsertWrappedBlocks([]*types.WrappedBlock{wrappedBlock1}))
+
+	l2cfg := cfg.L2Config
+	wc := NewL2WatcherClient(context.Background(), l2Cli, l2cfg.Confirmations, l2cfg.L2MessengerAddress, l2cfg.L2MessageQueueAddress, l2cfg.WithdrawTrieRootSlot, db)
+	loopToFetchEvent(subCtx, wc)
+
+	batch, err := db.GetLatestBatch()
+	assert.NoError(t, err)
+
+	// Create a new batch.
+	batchData := types.NewBatchData(&types.BlockBatch{
+		Index:     0,
+		Hash:      batch.Hash,
+		StateRoot: batch.StateRoot,
+	}, []*types.WrappedBlock{wrappedBlock1}, nil)
+
+	relayer, err := relayer.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,
+	}, relayer, db)
+	proposer.TryProposeBatch()
+
+	infos, err := db.GetUnbatchedL2Blocks(map[string]interface{}{},
+		fmt.Sprintf("order by number ASC LIMIT %d", 100))
+	assert.NoError(t, err)
+	assert.Equal(t, 0, len(infos))
+
+	exist, err := db.BatchRecordExist(batchData.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 := relayer.NewLayer2Relayer(context.Background(), l2Cli, db, cfg.L2Config.RelayerConfig)
+	assert.NoError(t, err)
+
+	// Insert traces into db.
+	assert.NoError(t, db.InsertWrappedBlocks([]*types.WrappedBlock{wrappedBlock2}))
+
+	// Insert block batch into db.
+	batchData1 := types.NewBatchData(&types.BlockBatch{
+		Index:     0,
+		Hash:      common.Hash{}.String(),
+		StateRoot: common.Hash{}.String(),
+	}, []*types.WrappedBlock{wrappedBlock1}, nil)
+
+	parentBatch2 := &types.BlockBatch{
+		Index:     batchData1.Batch.BatchIndex,
+		Hash:      batchData1.Hash().Hex(),
+		StateRoot: batchData1.Batch.NewStateRoot.String(),
+	}
+	batchData2 := types.NewBatchData(parentBatch2, []*types.WrappedBlock{wrappedBlock2}, nil)
+
+	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/watcher/common.go

@@ -0,0 +1,11 @@
+package watcher
+
+import "github.com/scroll-tech/go-ethereum/common"
+
+const contractEventsBlocksFetchLimit = int64(10)
+
+type relayedMessage struct {
+	msgHash      common.Hash
+	txHash       common.Hash
+	isSuccessful bool
+}

bridge/watcher/l1_watcher.go

@@ -1,9 +1,8 @@
-package l1
+package watcher
 
 import (
 	"context"
 	"math/big"
-	"time"
 
 	geth "github.com/scroll-tech/go-ethereum"
 	"github.com/scroll-tech/go-ethereum/accounts/abi"
@@ -17,9 +16,8 @@ import (
 
 	"scroll-tech/common/metrics"
 	"scroll-tech/common/types"
-	"scroll-tech/database"
 
-	cutil "scroll-tech/common/utils"
+	"scroll-tech/database"
 
 	bridge_abi "scroll-tech/bridge/abi"
 	"scroll-tech/bridge/utils"
@@ -33,20 +31,14 @@ var (
 	bridgeL1MsgsRollupEventsTotalCounter  = geth_metrics.NewRegisteredCounter("bridge/l1/msgs/rollup/events/total", metrics.ScrollRegistry)
 )
 
-type relayedMessage struct {
-	msgHash      common.Hash
-	txHash       common.Hash
-	isSuccessful bool
-}
-
 type rollupEvent struct {
 	batchHash common.Hash
 	txHash    common.Hash
 	status    types.RollupStatus
 }
 
-// Watcher will listen for smart contract events from Eth L1.
-type Watcher struct {
+// L1WatcherClient will listen for smart contract events from Eth L1.
+type L1WatcherClient struct {
 	ctx    context.Context
 	client *ethclient.Client
 	db     database.OrmFactory
@@ -67,13 +59,10 @@ type Watcher struct {
 	processedMsgHeight uint64
 	// The height of the block that the watcher has retrieved header rlp
 	processedBlockHeight uint64
-
-	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 rpc.BlockNumber, messengerAddress, messageQueueAddress, scrollChainAddress common.Address, db database.OrmFactory) *Watcher {
+// NewL1WatcherClient returns a new instance of L1WatcherClient.
+func NewL1WatcherClient(ctx context.Context, client *ethclient.Client, startHeight uint64, confirmations rpc.BlockNumber, messengerAddress, messageQueueAddress, scrollChainAddress common.Address, db database.OrmFactory) *L1WatcherClient {
 	savedHeight, err := db.GetLayer1LatestWatchedHeight()
 	if err != nil {
 		log.Warn("Failed to fetch height from db", "err", err)
@@ -92,9 +81,7 @@ func NewWatcher(ctx context.Context, client *ethclient.Client, startHeight uint6
 		savedL1BlockHeight = startHeight
 	}
 
-	stopCh := make(chan bool)
-
-	return &Watcher{
+	return &L1WatcherClient{
 		ctx:           ctx,
 		client:        client,
 		db:            db,
@@ -111,51 +98,29 @@ func NewWatcher(ctx context.Context, client *ethclient.Client, startHeight uint6
 
 		processedMsgHeight:   uint64(savedHeight),
 		processedBlockHeight: savedL1BlockHeight,
-		stopCh:               stopCh,
 	}
 }
 
-// Start the Watcher module.
-func (w *Watcher) Start() {
-	go func() {
-		ctx, cancel := context.WithCancel(w.ctx)
-
-		go cutil.LoopWithContext(ctx, 2*time.Second, func(subCtx context.Context) {
-			number, err := utils.GetLatestConfirmedBlockNumber(subCtx, w.client, w.confirmations)
-			if err != nil {
-				log.Error("failed to get block number", "err", err)
-			} else {
-				if err := w.FetchBlockHeader(number); err != nil {
-					log.Error("Failed to fetch L1 block header", "lastest", number, "err", err)
-				}
-			}
-		})
-
-		go cutil.LoopWithContext(ctx, 2*time.Second, func(subCtx context.Context) {
-			number, err := utils.GetLatestConfirmedBlockNumber(subCtx, w.client, w.confirmations)
-			if err != nil {
-				log.Error("failed to get block number", "err", err)
-			} else {
-				if err := w.FetchContractEvent(number); err != nil {
-					log.Error("Failed to fetch bridge contract", "err", err)
-				}
-			}
-		})
-
-		<-w.stopCh
-		cancel()
-	}()
+// ProcessedBlockHeight get processedBlockHeight
+// Currently only use for unit test
+func (w *L1WatcherClient) ProcessedBlockHeight() uint64 {
+	return w.processedBlockHeight
 }
 
-// Stop the Watcher module, for a graceful shutdown.
-func (w *Watcher) Stop() {
-	w.stopCh <- true
+// Confirmations get confirmations
+// Currently only use for unit test
+func (w *L1WatcherClient) Confirmations() rpc.BlockNumber {
+	return w.confirmations
 }
 
-const contractEventsBlocksFetchLimit = int64(10)
+// SetConfirmations set the confirmations for L1WatcherClient
+// Currently only use for unit test
+func (w *L1WatcherClient) SetConfirmations(confirmations rpc.BlockNumber) {
+	w.confirmations = confirmations
+}
 
 // FetchBlockHeader pull latest L1 blocks and save in DB
-func (w *Watcher) FetchBlockHeader(blockHeight uint64) error {
+func (w *L1WatcherClient) FetchBlockHeader(blockHeight uint64) error {
 	fromBlock := int64(w.processedBlockHeight) + 1
 	toBlock := int64(blockHeight)
 	if toBlock < fromBlock {
@@ -201,10 +166,15 @@ func (w *Watcher) FetchBlockHeader(blockHeight uint64) error {
 }
 
 // FetchContractEvent pull latest event logs from given contract address and save in DB
-func (w *Watcher) FetchContractEvent(blockHeight uint64) error {
+func (w *L1WatcherClient) FetchContractEvent() error {
 	defer func() {
 		log.Info("l1 watcher fetchContractEvent", "w.processedMsgHeight", w.processedMsgHeight)
 	}()
+	blockHeight, err := utils.GetLatestConfirmedBlockNumber(w.ctx, w.client, w.confirmations)
+	if err != nil {
+		log.Error("failed to get block number", "err", err)
+		return err
+	}
 
 	fromBlock := int64(w.processedMsgHeight) + 1
 	toBlock := int64(blockHeight)
@@ -317,7 +287,7 @@ func (w *Watcher) FetchContractEvent(blockHeight uint64) error {
 	return nil
 }
 
-func (w *Watcher) parseBridgeEventLogs(logs []geth_types.Log) ([]*types.L1Message, []relayedMessage, []rollupEvent, error) {
+func (w *L1WatcherClient) 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
 

bridge/watcher/l1_watcher_test.go

@@ -0,0 +1,514 @@
+package watcher
+
+import (
+	"context"
+	"errors"
+	"math/big"
+	"testing"
+
+	"github.com/agiledragon/gomonkey/v2"
+	"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/rpc"
+	"github.com/smartystreets/goconvey/convey"
+	"github.com/stretchr/testify/assert"
+
+	bridge_abi "scroll-tech/bridge/abi"
+	"scroll-tech/bridge/utils"
+
+	commonTypes "scroll-tech/common/types"
+
+	"scroll-tech/database"
+	"scroll-tech/database/migrate"
+)
+
+func setupL1Watcher(t *testing.T) (*L1WatcherClient, database.OrmFactory) {
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+
+	client, err := ethclient.Dial(base.L1gethImg.Endpoint())
+	assert.NoError(t, err)
+
+	l1Cfg := cfg.L1Config
+
+	watcher := NewL1WatcherClient(context.Background(), client, l1Cfg.StartHeight, l1Cfg.Confirmations, l1Cfg.L1MessengerAddress, l1Cfg.L1MessageQueueAddress, l1Cfg.RelayerConfig.RollupContractAddress, db)
+	assert.NoError(t, watcher.FetchContractEvent())
+	return watcher, db
+}
+
+func testFetchContractEvent(t *testing.T) {
+	watcher, db := setupL1Watcher(t)
+	defer db.Close()
+	assert.NoError(t, watcher.FetchContractEvent())
+}
+
+func testL1WatcherClientFetchBlockHeader(t *testing.T) {
+	watcher, db := setupL1Watcher(t)
+	defer db.Close()
+	convey.Convey("test toBlock < fromBlock", t, func() {
+		var blockHeight uint64
+		if watcher.ProcessedBlockHeight() <= 0 {
+			blockHeight = 0
+		} else {
+			blockHeight = watcher.ProcessedBlockHeight() - 1
+		}
+		err := watcher.FetchBlockHeader(blockHeight)
+		assert.NoError(t, err)
+	})
+
+	convey.Convey("test get header from client error", t, func() {
+		var c *ethclient.Client
+		patchGuard := gomonkey.ApplyMethodFunc(c, "HeaderByNumber", func(ctx context.Context, height *big.Int) (*types.Header, error) {
+			return nil, ethereum.NotFound
+		})
+		defer patchGuard.Reset()
+
+		var blockHeight uint64 = 10
+		err := watcher.FetchBlockHeader(blockHeight)
+		assert.Error(t, err)
+	})
+
+	convey.Convey("insert l1 block error", t, func() {
+		var c *ethclient.Client
+		patchGuard := gomonkey.ApplyMethodFunc(c, "HeaderByNumber", func(ctx context.Context, height *big.Int) (*types.Header, error) {
+			if height == nil {
+				height = big.NewInt(100)
+			}
+			t.Log(height)
+			return &types.Header{
+				BaseFee: big.NewInt(100),
+			}, nil
+		})
+		defer patchGuard.Reset()
+
+		patchGuard.ApplyMethodFunc(db, "InsertL1Blocks", func(ctx context.Context, blocks []*commonTypes.L1BlockInfo) error {
+			return errors.New("insert failed")
+		})
+
+		var blockHeight uint64 = 10
+		err := watcher.FetchBlockHeader(blockHeight)
+		assert.Error(t, err)
+	})
+
+	convey.Convey("fetch block header success", t, func() {
+		var c *ethclient.Client
+		patchGuard := gomonkey.ApplyMethodFunc(c, "HeaderByNumber", func(ctx context.Context, height *big.Int) (*types.Header, error) {
+			if height == nil {
+				height = big.NewInt(100)
+			}
+			t.Log(height)
+			return &types.Header{
+				BaseFee: big.NewInt(100),
+			}, nil
+		})
+		defer patchGuard.Reset()
+
+		patchGuard.ApplyMethodFunc(db, "InsertL1Blocks", func(ctx context.Context, blocks []*commonTypes.L1BlockInfo) error {
+			return nil
+		})
+
+		var blockHeight uint64 = 10
+		err := watcher.FetchBlockHeader(blockHeight)
+		assert.NoError(t, err)
+	})
+}
+
+func testL1WatcherClientFetchContractEvent(t *testing.T) {
+	watcher, db := setupL1Watcher(t)
+	defer db.Close()
+
+	watcher.SetConfirmations(rpc.SafeBlockNumber)
+	convey.Convey("get latest confirmed block number failure", t, func() {
+		var c *ethclient.Client
+		patchGuard := gomonkey.ApplyMethodFunc(c, "HeaderByNumber", func(ctx context.Context, height *big.Int) (*types.Header, error) {
+			return nil, ethereum.NotFound
+		})
+		defer patchGuard.Reset()
+		err := watcher.FetchContractEvent()
+		assert.Error(t, err)
+	})
+
+	var c *ethclient.Client
+	patchGuard := gomonkey.ApplyMethodFunc(c, "HeaderByNumber", func(ctx context.Context, height *big.Int) (*types.Header, error) {
+		if height == nil {
+			height = big.NewInt(100)
+		}
+		t.Log(height)
+		return &types.Header{
+			Number:  big.NewInt(100),
+			BaseFee: big.NewInt(100),
+		}, nil
+	})
+	defer patchGuard.Reset()
+
+	convey.Convey("filter logs failure", t, func() {
+		targetErr := errors.New("call filter failure")
+		patchGuard.ApplyMethodFunc(c, "FilterLogs", func(ctx context.Context, q ethereum.FilterQuery) ([]types.Log, error) {
+			return nil, targetErr
+		})
+		err := watcher.FetchContractEvent()
+		assert.EqualError(t, err, targetErr.Error())
+	})
+
+	patchGuard.ApplyMethodFunc(c, "FilterLogs", func(ctx context.Context, q ethereum.FilterQuery) ([]types.Log, error) {
+		return []types.Log{
+			{
+				Address: common.HexToAddress("0x0000000000000000000000000000000000000000"),
+			},
+		}, nil
+	})
+
+	convey.Convey("parse bridge event logs failure", t, func() {
+		targetErr := errors.New("parse log failure")
+		patchGuard.ApplyPrivateMethod(watcher, "parseBridgeEventLogs", func(*L1WatcherClient, []geth_types.Log) ([]*commonTypes.L1Message, []relayedMessage, []rollupEvent, error) {
+			return nil, nil, nil, targetErr
+		})
+		err := watcher.FetchContractEvent()
+		assert.Equal(t, err.Error(), targetErr.Error())
+	})
+
+	patchGuard.ApplyPrivateMethod(watcher, "parseBridgeEventLogs", func(*L1WatcherClient, []geth_types.Log) ([]*commonTypes.L1Message, []relayedMessage, []rollupEvent, error) {
+		rollupEvents := []rollupEvent{
+			{
+				batchHash: common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
+				txHash:    common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5"),
+				status:    commonTypes.RollupFinalized,
+			},
+			{
+				batchHash: common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5"),
+				txHash:    common.HexToHash("0xb4c11951957c6f8f642c4af61cd6b24640fec6dc7fc607ee8206a99e92410d30"),
+				status:    commonTypes.RollupCommitted,
+			},
+		}
+
+		relayedMessageEvents := []relayedMessage{
+			{
+				msgHash:      common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
+				txHash:       common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5"),
+				isSuccessful: true,
+			},
+			{
+				msgHash:      common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5"),
+				txHash:       common.HexToHash("0xb4c11951957c6f8f642c4af61cd6b24640fec6dc7fc607ee8206a99e92410d30"),
+				isSuccessful: false,
+			},
+		}
+		return nil, relayedMessageEvents, rollupEvents, nil
+	})
+
+	convey.Convey("db get rollup status by hash list failure", t, func() {
+		targetErr := errors.New("get db failure")
+		patchGuard.ApplyMethodFunc(db, "GetRollupStatusByHashList", func(hashes []string) ([]commonTypes.RollupStatus, error) {
+			return nil, targetErr
+		})
+		err := watcher.FetchContractEvent()
+		assert.Equal(t, err.Error(), targetErr.Error())
+	})
+
+	convey.Convey("rollup status mismatch batch hashes length", t, func() {
+		patchGuard.ApplyMethodFunc(db, "GetRollupStatusByHashList", func(hashes []string) ([]commonTypes.RollupStatus, error) {
+			s := []commonTypes.RollupStatus{
+				commonTypes.RollupFinalized,
+			}
+			return s, nil
+		})
+		err := watcher.FetchContractEvent()
+		assert.NoError(t, err)
+	})
+
+	patchGuard.ApplyMethodFunc(db, "GetRollupStatusByHashList", func(hashes []string) ([]commonTypes.RollupStatus, error) {
+		s := []commonTypes.RollupStatus{
+			commonTypes.RollupPending,
+			commonTypes.RollupCommitting,
+		}
+		return s, nil
+	})
+
+	convey.Convey("db update RollupFinalized status failure", t, func() {
+		targetErr := errors.New("UpdateFinalizeTxHashAndRollupStatus RollupFinalized failure")
+		patchGuard.ApplyMethodFunc(db, "UpdateFinalizeTxHashAndRollupStatus", func(context.Context, string, string, commonTypes.RollupStatus) error {
+			return targetErr
+		})
+		err := watcher.FetchContractEvent()
+		assert.Equal(t, targetErr.Error(), err.Error())
+	})
+
+	patchGuard.ApplyMethodFunc(db, "UpdateFinalizeTxHashAndRollupStatus", func(context.Context, string, string, commonTypes.RollupStatus) error {
+		return nil
+	})
+
+	convey.Convey("db update RollupCommitted status failure", t, func() {
+		targetErr := errors.New("UpdateCommitTxHashAndRollupStatus RollupCommitted failure")
+		patchGuard.ApplyMethodFunc(db, "UpdateCommitTxHashAndRollupStatus", func(context.Context, string, string, commonTypes.RollupStatus) error {
+			return targetErr
+		})
+		err := watcher.FetchContractEvent()
+		assert.Equal(t, targetErr.Error(), err.Error())
+	})
+
+	patchGuard.ApplyMethodFunc(db, "UpdateCommitTxHashAndRollupStatus", func(context.Context, string, string, commonTypes.RollupStatus) error {
+		return nil
+	})
+
+	convey.Convey("db update layer2 status and layer1 hash failure", t, func() {
+		targetErr := errors.New("UpdateLayer2StatusAndLayer1Hash failure")
+		patchGuard.ApplyMethodFunc(db, "UpdateLayer2StatusAndLayer1Hash", func(context.Context, string, commonTypes.MsgStatus, string) error {
+			return targetErr
+		})
+		err := watcher.FetchContractEvent()
+		assert.Equal(t, targetErr.Error(), err.Error())
+	})
+
+	patchGuard.ApplyMethodFunc(db, "UpdateLayer2StatusAndLayer1Hash", func(context.Context, string, commonTypes.MsgStatus, string) error {
+		return nil
+	})
+
+	convey.Convey("db save l1 message failure", t, func() {
+		targetErr := errors.New("SaveL1Messages failure")
+		patchGuard.ApplyMethodFunc(db, "SaveL1Messages", func(context.Context, []*commonTypes.L1Message) error {
+			return targetErr
+		})
+		err := watcher.FetchContractEvent()
+		assert.Equal(t, targetErr.Error(), err.Error())
+	})
+
+	patchGuard.ApplyMethodFunc(db, "SaveL1Messages", func(context.Context, []*commonTypes.L1Message) error {
+		return nil
+	})
+
+	convey.Convey("FetchContractEvent success", t, func() {
+		err := watcher.FetchContractEvent()
+		assert.NoError(t, err)
+	})
+}
+
+func testParseBridgeEventLogsL1QueueTransactionEventSignature(t *testing.T) {
+	watcher, db := setupL1Watcher(t)
+	defer db.Close()
+
+	logs := []geth_types.Log{
+		{
+			Topics:      []common.Hash{bridge_abi.L1QueueTransactionEventSignature},
+			BlockNumber: 100,
+			TxHash:      common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
+		},
+	}
+
+	convey.Convey("unpack QueueTransaction log failure", t, func() {
+		targetErr := errors.New("UnpackLog QueueTransaction failure")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log types.Log) error {
+			return targetErr
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, rollupEvents, err := watcher.parseBridgeEventLogs(logs)
+		assert.EqualError(t, err, targetErr.Error())
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, relayedMessages)
+		assert.Empty(t, rollupEvents)
+	})
+
+	convey.Convey("L1QueueTransactionEventSignature success", t, func() {
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log types.Log) error {
+			tmpOut := out.(*bridge_abi.L1QueueTransactionEvent)
+			tmpOut.QueueIndex = big.NewInt(100)
+			tmpOut.Data = []byte("test data")
+			tmpOut.Sender = common.HexToAddress("0xb4c11951957c6f8f642c4af61cd6b24640fec6dc7fc607ee8206a99e92410d30")
+			tmpOut.Value = big.NewInt(1000)
+			tmpOut.Target = common.HexToAddress("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5")
+			tmpOut.GasLimit = big.NewInt(10)
+			return nil
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, rollupEvents, err := watcher.parseBridgeEventLogs(logs)
+		assert.NoError(t, err)
+		assert.Empty(t, relayedMessages)
+		assert.Empty(t, rollupEvents)
+		assert.Len(t, l2Messages, 1)
+		assert.Equal(t, l2Messages[0].Value, big.NewInt(1000).String())
+	})
+}
+
+func testParseBridgeEventLogsL1RelayedMessageEventSignature(t *testing.T) {
+	watcher, db := setupL1Watcher(t)
+	defer db.Close()
+
+	logs := []geth_types.Log{
+		{
+			Topics:      []common.Hash{bridge_abi.L1RelayedMessageEventSignature},
+			BlockNumber: 100,
+			TxHash:      common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
+		},
+	}
+
+	convey.Convey("unpack RelayedMessage log failure", t, func() {
+		targetErr := errors.New("UnpackLog RelayedMessage failure")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log types.Log) error {
+			return targetErr
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, rollupEvents, err := watcher.parseBridgeEventLogs(logs)
+		assert.EqualError(t, err, targetErr.Error())
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, relayedMessages)
+		assert.Empty(t, rollupEvents)
+	})
+
+	convey.Convey("L1RelayedMessageEventSignature success", t, func() {
+		msgHash := common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log types.Log) error {
+			tmpOut := out.(*bridge_abi.L1RelayedMessageEvent)
+			tmpOut.MessageHash = msgHash
+			return nil
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, rollupEvents, err := watcher.parseBridgeEventLogs(logs)
+		assert.NoError(t, err)
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, rollupEvents)
+		assert.Len(t, relayedMessages, 1)
+		assert.Equal(t, relayedMessages[0].msgHash, msgHash)
+	})
+}
+
+func testParseBridgeEventLogsL1FailedRelayedMessageEventSignature(t *testing.T) {
+	watcher, db := setupL1Watcher(t)
+	defer db.Close()
+
+	logs := []geth_types.Log{
+		{
+			Topics:      []common.Hash{bridge_abi.L1FailedRelayedMessageEventSignature},
+			BlockNumber: 100,
+			TxHash:      common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
+		},
+	}
+
+	convey.Convey("unpack FailedRelayedMessage log failure", t, func() {
+		targetErr := errors.New("UnpackLog FailedRelayedMessage failure")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log types.Log) error {
+			return targetErr
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, rollupEvents, err := watcher.parseBridgeEventLogs(logs)
+		assert.EqualError(t, err, targetErr.Error())
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, relayedMessages)
+		assert.Empty(t, rollupEvents)
+	})
+
+	convey.Convey("L1FailedRelayedMessageEventSignature success", t, func() {
+		msgHash := common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log types.Log) error {
+			tmpOut := out.(*bridge_abi.L1FailedRelayedMessageEvent)
+			tmpOut.MessageHash = msgHash
+			return nil
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, rollupEvents, err := watcher.parseBridgeEventLogs(logs)
+		assert.NoError(t, err)
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, rollupEvents)
+		assert.Len(t, relayedMessages, 1)
+		assert.Equal(t, relayedMessages[0].msgHash, msgHash)
+	})
+}
+
+func testParseBridgeEventLogsL1CommitBatchEventSignature(t *testing.T) {
+	watcher, db := setupL1Watcher(t)
+	defer db.Close()
+
+	logs := []geth_types.Log{
+		{
+			Topics:      []common.Hash{bridge_abi.L1CommitBatchEventSignature},
+			BlockNumber: 100,
+			TxHash:      common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
+		},
+	}
+
+	convey.Convey("unpack CommitBatch log failure", t, func() {
+		targetErr := errors.New("UnpackLog CommitBatch failure")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log types.Log) error {
+			return targetErr
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, rollupEvents, err := watcher.parseBridgeEventLogs(logs)
+		assert.EqualError(t, err, targetErr.Error())
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, relayedMessages)
+		assert.Empty(t, rollupEvents)
+	})
+
+	convey.Convey("L1CommitBatchEventSignature success", t, func() {
+		msgHash := common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log types.Log) error {
+			tmpOut := out.(*bridge_abi.L1CommitBatchEvent)
+			tmpOut.BatchHash = msgHash
+			return nil
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, rollupEvents, err := watcher.parseBridgeEventLogs(logs)
+		assert.NoError(t, err)
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, relayedMessages)
+		assert.Len(t, rollupEvents, 1)
+		assert.Equal(t, rollupEvents[0].batchHash, msgHash)
+		assert.Equal(t, rollupEvents[0].status, commonTypes.RollupCommitted)
+	})
+}
+
+func testParseBridgeEventLogsL1FinalizeBatchEventSignature(t *testing.T) {
+	watcher, db := setupL1Watcher(t)
+	defer db.Close()
+
+	logs := []geth_types.Log{
+		{
+			Topics:      []common.Hash{bridge_abi.L1FinalizeBatchEventSignature},
+			BlockNumber: 100,
+			TxHash:      common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
+		},
+	}
+
+	convey.Convey("unpack FinalizeBatch log failure", t, func() {
+		targetErr := errors.New("UnpackLog FinalizeBatch failure")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log types.Log) error {
+			return targetErr
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, rollupEvents, err := watcher.parseBridgeEventLogs(logs)
+		assert.EqualError(t, err, targetErr.Error())
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, relayedMessages)
+		assert.Empty(t, rollupEvents)
+	})
+
+	convey.Convey("L1FinalizeBatchEventSignature success", t, func() {
+		msgHash := common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log types.Log) error {
+			tmpOut := out.(*bridge_abi.L1FinalizeBatchEvent)
+			tmpOut.BatchHash = msgHash
+			return nil
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, rollupEvents, err := watcher.parseBridgeEventLogs(logs)
+		assert.NoError(t, err)
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, relayedMessages)
+		assert.Len(t, rollupEvents, 1)
+		assert.Equal(t, rollupEvents[0].batchHash, msgHash)
+		assert.Equal(t, rollupEvents[0].status, commonTypes.RollupFinalized)
+	})
+}

bridge/watcher/l2_watcher.go

@@ -1,12 +1,10 @@
-package l2
+package watcher
 
 import (
 	"context"
 	"errors"
 	"fmt"
 	"math/big"
-	"reflect"
-	"time"
 
 	geth "github.com/scroll-tech/go-ethereum"
 	"github.com/scroll-tech/go-ethereum/accounts/abi"
@@ -21,7 +19,7 @@ import (
 
 	"scroll-tech/common/metrics"
 	"scroll-tech/common/types"
-	cutil "scroll-tech/common/utils"
+
 	"scroll-tech/database"
 
 	bridge_abi "scroll-tech/bridge/abi"
@@ -31,22 +29,16 @@ import (
 // Metrics
 var (
 	bridgeL2MsgsSyncHeightGauge      = geth_metrics.NewRegisteredGauge("bridge/l2/msgs/sync/height", metrics.ScrollRegistry)
-	bridgeL2TracesFetchedHeightGauge = geth_metrics.NewRegisteredGauge("bridge/l2/traces/fetched/height", metrics.ScrollRegistry)
-	bridgeL2TracesFetchedGapGauge    = geth_metrics.NewRegisteredGauge("bridge/l2/traces/fetched/gap", metrics.ScrollRegistry)
+	bridgeL2BlocksFetchedHeightGauge = geth_metrics.NewRegisteredGauge("bridge/l2/blocks/fetched/height", metrics.ScrollRegistry)
+	bridgeL2BlocksFetchedGapGauge    = geth_metrics.NewRegisteredGauge("bridge/l2/blocks/fetched/gap", metrics.ScrollRegistry)
 
 	bridgeL2MsgsSentEventsTotalCounter    = geth_metrics.NewRegisteredCounter("bridge/l2/msgs/sent/events/total", metrics.ScrollRegistry)
 	bridgeL2MsgsAppendEventsTotalCounter  = geth_metrics.NewRegisteredCounter("bridge/l2/msgs/append/events/total", metrics.ScrollRegistry)
 	bridgeL2MsgsRelayedEventsTotalCounter = geth_metrics.NewRegisteredCounter("bridge/l2/msgs/relayed/events/total", metrics.ScrollRegistry)
 )
 
-type relayedMessage struct {
-	msgHash      common.Hash
-	txHash       common.Hash
-	isSuccessful bool
-}
-
-// WatcherClient provide APIs which support others to subscribe to various event from l2geth
-type WatcherClient struct {
+// L2WatcherClient provide APIs which support others to subscribe to various event from l2geth
+type L2WatcherClient struct {
 	ctx context.Context
 	event.Feed
 
@@ -67,18 +59,17 @@ type WatcherClient struct {
 	processedMsgHeight uint64
 
 	stopped uint64
-	stopCh  chan struct{}
 }
 
 // NewL2WatcherClient take a l2geth instance to generate a l2watcherclient instance
-func NewL2WatcherClient(ctx context.Context, client *ethclient.Client, confirmations rpc.BlockNumber, messengerAddress, messageQueueAddress common.Address, withdrawTrieRootSlot common.Hash, orm database.OrmFactory) *WatcherClient {
+func NewL2WatcherClient(ctx context.Context, client *ethclient.Client, confirmations rpc.BlockNumber, messengerAddress, messageQueueAddress common.Address, withdrawTrieRootSlot common.Hash, orm database.OrmFactory) *L2WatcherClient {
 	savedHeight, err := orm.GetLayer2LatestWatchedHeight()
 	if err != nil {
 		log.Warn("fetch height from db failed", "err", err)
 		savedHeight = 0
 	}
 
-	w := WatcherClient{
+	w := L2WatcherClient{
 		ctx:                ctx,
 		Client:             client,
 		orm:                orm,
@@ -92,7 +83,6 @@ func NewL2WatcherClient(ctx context.Context, client *ethclient.Client, confirmat
 		messageQueueABI:      bridge_abi.L2MessageQueueABI,
 		withdrawTrieRootSlot: withdrawTrieRootSlot,
 
-		stopCh:  make(chan struct{}),
 		stopped: 0,
 	}
 
@@ -104,7 +94,7 @@ func NewL2WatcherClient(ctx context.Context, client *ethclient.Client, confirmat
 	return &w
 }
 
-func (w *WatcherClient) initializeGenesis() error {
+func (w *L2WatcherClient) initializeGenesis() error {
 	if count, err := w.orm.GetBatchCount(); err != nil {
 		return fmt.Errorf("failed to get batch count: %v", err)
 	} else if count > 0 {
@@ -142,46 +132,10 @@ func (w *WatcherClient) initializeGenesis() error {
 	return nil
 }
 
-// Start the Listening process
-func (w *WatcherClient) Start() {
-	go func() {
-		if reflect.ValueOf(w.orm).IsNil() {
-			panic("must run L2 watcher with DB")
-		}
-
-		ctx, cancel := context.WithCancel(w.ctx)
-		go cutil.LoopWithContext(ctx, 2*time.Second, func(subCtx context.Context) {
-			number, err := utils.GetLatestConfirmedBlockNumber(subCtx, w.Client, w.confirmations)
-			if err != nil {
-				log.Error("failed to get block number", "err", err)
-			} else {
-				w.tryFetchRunningMissingBlocks(ctx, number)
-			}
-		})
-
-		go cutil.LoopWithContext(ctx, 2*time.Second, func(subCtx context.Context) {
-			number, err := utils.GetLatestConfirmedBlockNumber(subCtx, w.Client, w.confirmations)
-			if err != nil {
-				log.Error("failed to get block number", "err", err)
-			} else {
-				w.FetchContractEvent(number)
-			}
-		})
-
-		<-w.stopCh
-		cancel()
-	}()
-}
-
-// Stop the Watcher module, for a graceful shutdown.
-func (w *WatcherClient) Stop() {
-	w.stopCh <- struct{}{}
-}
-
 const blockTracesFetchLimit = uint64(10)
 
-// try fetch missing blocks if inconsistent
-func (w *WatcherClient) tryFetchRunningMissingBlocks(ctx context.Context, blockHeight uint64) {
+// TryFetchRunningMissingBlocks try fetch missing blocks if inconsistent
+func (w *L2WatcherClient) TryFetchRunningMissingBlocks(ctx context.Context, blockHeight uint64) {
 	// 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
@@ -209,8 +163,8 @@ func (w *WatcherClient) tryFetchRunningMissingBlocks(ctx context.Context, blockH
 			log.Error("fail to getAndStoreBlockTraces", "from", from, "to", to, "err", err)
 			return
 		}
-		bridgeL2TracesFetchedHeightGauge.Update(int64(to))
-		bridgeL2TracesFetchedGapGauge.Update(int64(blockHeight - to))
+		bridgeL2BlocksFetchedHeightGauge.Update(int64(to))
+		bridgeL2BlocksFetchedGapGauge.Update(int64(blockHeight - to))
 	}
 }
 
@@ -237,7 +191,7 @@ func txsToTxsData(txs geth_types.Transactions) []*geth_types.TransactionData {
 	return txsData
 }
 
-func (w *WatcherClient) getAndStoreBlockTraces(ctx context.Context, from, to uint64) error {
+func (w *L2WatcherClient) getAndStoreBlockTraces(ctx context.Context, from, to uint64) error {
 	var blocks []*types.WrappedBlock
 
 	for number := from; number <= to; number++ {
@@ -270,14 +224,18 @@ func (w *WatcherClient) getAndStoreBlockTraces(ctx context.Context, from, to uin
 	return nil
 }
 
-const contractEventsBlocksFetchLimit = int64(10)
-
 // FetchContractEvent pull latest event logs from given contract address and save in DB
-func (w *WatcherClient) FetchContractEvent(blockHeight uint64) {
+func (w *L2WatcherClient) FetchContractEvent() {
 	defer func() {
 		log.Info("l2 watcher fetchContractEvent", "w.processedMsgHeight", w.processedMsgHeight)
 	}()
 
+	blockHeight, err := utils.GetLatestConfirmedBlockNumber(w.ctx, w.Client, w.confirmations)
+	if err != nil {
+		log.Error("failed to get block number", "err", err)
+		return
+	}
+
 	fromBlock := int64(w.processedMsgHeight) + 1
 	toBlock := int64(blockHeight)
 
@@ -353,7 +311,7 @@ func (w *WatcherClient) FetchContractEvent(blockHeight uint64) {
 	}
 }
 
-func (w *WatcherClient) parseBridgeEventLogs(logs []geth_types.Log) ([]*types.L2Message, []relayedMessage, error) {
+func (w *L2WatcherClient) 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
 

bridge/watcher/l2_watcher_test.go

@@ -0,0 +1,437 @@
+package watcher
+
+import (
+	"context"
+	"crypto/ecdsa"
+	"errors"
+	"math/big"
+	"strconv"
+	"testing"
+	"time"
+
+	"github.com/agiledragon/gomonkey/v2"
+	"github.com/scroll-tech/go-ethereum/accounts/abi"
+	"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/ethclient"
+	"github.com/scroll-tech/go-ethereum/rpc"
+	"github.com/smartystreets/goconvey/convey"
+	"github.com/stretchr/testify/assert"
+
+	"scroll-tech/common/types"
+
+	bridge_abi "scroll-tech/bridge/abi"
+	"scroll-tech/bridge/mock_bridge"
+	"scroll-tech/bridge/sender"
+	"scroll-tech/bridge/utils"
+
+	cutils "scroll-tech/common/utils"
+
+	"scroll-tech/database"
+	"scroll-tech/database/migrate"
+)
+
+func setupL2Watcher(t *testing.T) *L2WatcherClient {
+	db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(db.GetDB().DB))
+	defer db.Close()
+
+	l2cfg := cfg.L2Config
+	watcher := NewL2WatcherClient(context.Background(), l2Cli, l2cfg.Confirmations, l2cfg.L2MessengerAddress, l2cfg.L2MessageQueueAddress, l2cfg.WithdrawTrieRootSlot, db)
+	return watcher
+}
+
+func testCreateNewWatcherAndStop(t *testing.T) {
+	// Create db handler and reset db.
+	l2db, err := database.NewOrmFactory(cfg.DBConfig)
+	assert.NoError(t, err)
+	assert.NoError(t, migrate.ResetDB(l2db.GetDB().DB))
+	ctx := context.Background()
+	subCtx, cancel := context.WithCancel(ctx)
+	defer func() {
+		cancel()
+		l2db.Close()
+	}()
+
+	l2cfg := cfg.L2Config
+	wc := NewL2WatcherClient(context.Background(), l2Cli, l2cfg.Confirmations, l2cfg.L2MessengerAddress, l2cfg.L2MessageQueueAddress, l2cfg.WithdrawTrieRootSlot, l2db)
+	loopToFetchEvent(subCtx, wc)
+
+	l1cfg := cfg.L1Config
+	l1cfg.RelayerConfig.SenderConfig.Confirmations = rpc.LatestBlockNumber
+	newSender, err := sender.NewSender(context.Background(), l1cfg.RelayerConfig.SenderConfig, l1cfg.RelayerConfig.MessageSenderPrivateKeys)
+	assert.NoError(t, err)
+
+	// Create several transactions and commit to block
+	numTransactions := 3
+	toAddress := common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
+	for i := 0; i < numTransactions; i++ {
+		_, err = newSender.SendTransaction(strconv.Itoa(1000+i), &toAddress, big.NewInt(1000000000), nil, 0)
+		assert.NoError(t, err)
+		<-newSender.ConfirmChan()
+	}
+
+	blockNum, err := l2Cli.BlockNumber(context.Background())
+	assert.NoError(t, err)
+	assert.GreaterOrEqual(t, blockNum, uint64(numTransactions))
+}
+
+func testMonitorBridgeContract(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))
+	ctx := context.Background()
+	subCtx, cancel := context.WithCancel(ctx)
+
+	defer func() {
+		cancel()
+		db.Close()
+	}()
+
+	l2cfg := cfg.L2Config
+	wc := NewL2WatcherClient(context.Background(), l2Cli, l2cfg.Confirmations, l2cfg.L2MessengerAddress, l2cfg.L2MessageQueueAddress, l2cfg.WithdrawTrieRootSlot, db)
+	loopToFetchEvent(subCtx, wc)
+
+	previousHeight, err := l2Cli.BlockNumber(context.Background())
+	assert.NoError(t, err)
+
+	auth := prepareAuth(t, l2Cli, cfg.L2Config.RelayerConfig.MessageSenderPrivateKeys[0])
+
+	// deploy mock bridge
+	_, tx, instance, err := mock_bridge.DeployMockBridgeL2(auth, l2Cli)
+	assert.NoError(t, err)
+	address, err := bind.WaitDeployed(context.Background(), l2Cli, tx)
+	assert.NoError(t, err)
+
+	rc := prepareWatcherClient(l2Cli, db, address)
+	loopToFetchEvent(subCtx, rc)
+	// Call mock_bridge instance sendMessage to trigger emit events
+	toAddress := common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
+	message := []byte("testbridgecontract")
+	fee := big.NewInt(0)
+	gasLimit := big.NewInt(1)
+
+	tx, err = instance.SendMessage(auth, toAddress, fee, message, gasLimit)
+	assert.NoError(t, err)
+	receipt, err := bind.WaitMined(context.Background(), l2Cli, tx)
+	if receipt.Status != geth_types.ReceiptStatusSuccessful || err != nil {
+		t.Fatalf("Call failed")
+	}
+
+	// extra block mined
+	toAddress = common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
+	message = []byte("testbridgecontract")
+	tx, err = instance.SendMessage(auth, toAddress, fee, message, gasLimit)
+	assert.NoError(t, err)
+	receipt, err = bind.WaitMined(context.Background(), l2Cli, tx)
+	if receipt.Status != geth_types.ReceiptStatusSuccessful || err != nil {
+		t.Fatalf("Call failed")
+	}
+
+	// check if we successfully stored events
+	assert.True(t, cutils.TryTimes(10, func() bool {
+		height, err := db.GetLayer2LatestWatchedHeight()
+		return err == nil && height > int64(previousHeight)
+	}))
+
+	// check l1 messages.
+	assert.True(t, cutils.TryTimes(10, func() bool {
+		msgs, err := db.GetL2Messages(map[string]interface{}{"status": types.MsgPending})
+		return err == nil && len(msgs) == 2
+	}))
+}
+
+func testFetchMultipleSentMessageInOneBlock(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))
+	ctx := context.Background()
+	subCtx, cancel := context.WithCancel(ctx)
+
+	defer func() {
+		cancel()
+		db.Close()
+	}()
+
+	previousHeight, err := l2Cli.BlockNumber(context.Background()) // shallow the global previousHeight
+	assert.NoError(t, err)
+
+	auth := prepareAuth(t, l2Cli, cfg.L2Config.RelayerConfig.MessageSenderPrivateKeys[0])
+
+	_, trx, instance, err := mock_bridge.DeployMockBridgeL2(auth, l2Cli)
+	assert.NoError(t, err)
+	address, err := bind.WaitDeployed(context.Background(), l2Cli, trx)
+	assert.NoError(t, err)
+
+	wc := prepareWatcherClient(l2Cli, db, address)
+	loopToFetchEvent(subCtx, wc)
+
+	// Call mock_bridge instance sendMessage to trigger emit events multiple times
+	numTransactions := 4
+	var tx *geth_types.Transaction
+
+	for i := 0; i < numTransactions; i++ {
+		addr := common.HexToAddress("0x1c5a77d9fa7ef466951b2f01f724bca3a5820b63")
+		nonce, nounceErr := l2Cli.PendingNonceAt(context.Background(), addr)
+		assert.NoError(t, nounceErr)
+		auth.Nonce = big.NewInt(int64(nonce))
+		toAddress := common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
+		message := []byte("testbridgecontract")
+		fee := big.NewInt(0)
+		gasLimit := big.NewInt(1)
+		tx, err = instance.SendMessage(auth, toAddress, fee, message, gasLimit)
+		assert.NoError(t, err)
+	}
+
+	receipt, err := bind.WaitMined(context.Background(), l2Cli, tx)
+	if receipt.Status != geth_types.ReceiptStatusSuccessful || err != nil {
+		t.Fatalf("Call failed")
+	}
+
+	// extra block mined
+	addr := common.HexToAddress("0x1c5a77d9fa7ef466951b2f01f724bca3a5820b63")
+	nonce, nounceErr := l2Cli.PendingNonceAt(context.Background(), addr)
+	assert.NoError(t, nounceErr)
+	auth.Nonce = big.NewInt(int64(nonce))
+	toAddress := common.HexToAddress("0x4592d8f8d7b001e72cb26a73e4fa1806a51ac79d")
+	message := []byte("testbridgecontract")
+	fee := big.NewInt(0)
+	gasLimit := big.NewInt(1)
+	tx, err = instance.SendMessage(auth, toAddress, fee, message, gasLimit)
+	assert.NoError(t, err)
+	receipt, err = bind.WaitMined(context.Background(), l2Cli, tx)
+	if receipt.Status != geth_types.ReceiptStatusSuccessful || err != nil {
+		t.Fatalf("Call failed")
+	}
+
+	// check if we successfully stored events
+	assert.True(t, cutils.TryTimes(10, func() bool {
+		height, err := db.GetLayer2LatestWatchedHeight()
+		return err == nil && height > int64(previousHeight)
+	}))
+
+	assert.True(t, cutils.TryTimes(10, func() bool {
+		msgs, err := db.GetL2Messages(map[string]interface{}{"status": types.MsgPending})
+		return err == nil && len(msgs) == 5
+	}))
+}
+
+func testFetchRunningMissingBlocks(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()
+
+	auth := prepareAuth(t, l2Cli, cfg.L2Config.RelayerConfig.MessageSenderPrivateKeys[0])
+
+	// deploy mock bridge
+	_, tx, _, err := mock_bridge.DeployMockBridgeL2(auth, l2Cli)
+	assert.NoError(t, err)
+	address, err := bind.WaitDeployed(context.Background(), l2Cli, tx)
+	assert.NoError(t, err)
+
+	ok := cutils.TryTimes(10, func() bool {
+		latestHeight, err := l2Cli.BlockNumber(context.Background())
+		if err != nil {
+			return false
+		}
+		wc := prepareWatcherClient(l2Cli, db, address)
+		wc.TryFetchRunningMissingBlocks(context.Background(), latestHeight)
+		fetchedHeight, err := db.GetL2BlocksLatestHeight()
+		return err == nil && uint64(fetchedHeight) == latestHeight
+	})
+	assert.True(t, ok)
+}
+
+func prepareWatcherClient(l2Cli *ethclient.Client, db database.OrmFactory, contractAddr common.Address) *L2WatcherClient {
+	confirmations := rpc.LatestBlockNumber
+	return NewL2WatcherClient(context.Background(), l2Cli, confirmations, contractAddr, contractAddr, common.Hash{}, db)
+}
+
+func prepareAuth(t *testing.T, l2Cli *ethclient.Client, privateKey *ecdsa.PrivateKey) *bind.TransactOpts {
+	auth, err := bind.NewKeyedTransactorWithChainID(privateKey, big.NewInt(53077))
+	assert.NoError(t, err)
+	auth.Value = big.NewInt(0) // in wei
+	assert.NoError(t, err)
+	auth.GasPrice, err = l2Cli.SuggestGasPrice(context.Background())
+	assert.NoError(t, err)
+	return auth
+}
+
+func loopToFetchEvent(subCtx context.Context, watcher *L2WatcherClient) {
+	go cutils.Loop(subCtx, 2*time.Second, watcher.FetchContractEvent)
+}
+
+func testParseBridgeEventLogsL2SentMessageEventSignature(t *testing.T) {
+	watcher := setupL2Watcher(t)
+	logs := []geth_types.Log{
+		{
+			Topics: []common.Hash{
+				bridge_abi.L2SentMessageEventSignature,
+			},
+			BlockNumber: 100,
+			TxHash:      common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
+		},
+	}
+
+	convey.Convey("unpack SentMessage log failure", t, func() {
+		targetErr := errors.New("UnpackLog SentMessage failure")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log geth_types.Log) error {
+			return targetErr
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, err := watcher.parseBridgeEventLogs(logs)
+		assert.EqualError(t, err, targetErr.Error())
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, relayedMessages)
+	})
+
+	convey.Convey("L2SentMessageEventSignature success", t, func() {
+		tmpSendAddr := common.HexToAddress("0xb4c11951957c6f8f642c4af61cd6b24640fec6dc7fc607ee8206a99e92410d30")
+		tmpTargetAddr := common.HexToAddress("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5")
+		tmpValue := big.NewInt(1000)
+		tmpMessageNonce := big.NewInt(100)
+		tmpMessage := []byte("test for L2SentMessageEventSignature")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log geth_types.Log) error {
+			tmpOut := out.(*bridge_abi.L2SentMessageEvent)
+			tmpOut.Sender = tmpSendAddr
+			tmpOut.Value = tmpValue
+			tmpOut.Target = tmpTargetAddr
+			tmpOut.MessageNonce = tmpMessageNonce
+			tmpOut.Message = tmpMessage
+			return nil
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, err := watcher.parseBridgeEventLogs(logs)
+		assert.Error(t, err)
+		assert.Empty(t, relayedMessages)
+		assert.Empty(t, l2Messages)
+	})
+}
+
+func testParseBridgeEventLogsL2RelayedMessageEventSignature(t *testing.T) {
+	watcher := setupL2Watcher(t)
+	logs := []geth_types.Log{
+		{
+			Topics:      []common.Hash{bridge_abi.L2RelayedMessageEventSignature},
+			BlockNumber: 100,
+			TxHash:      common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
+		},
+	}
+
+	convey.Convey("unpack RelayedMessage log failure", t, func() {
+		targetErr := errors.New("UnpackLog RelayedMessage failure")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log geth_types.Log) error {
+			return targetErr
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, err := watcher.parseBridgeEventLogs(logs)
+		assert.EqualError(t, err, targetErr.Error())
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, relayedMessages)
+	})
+
+	convey.Convey("L2RelayedMessageEventSignature success", t, func() {
+		msgHash := common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log geth_types.Log) error {
+			tmpOut := out.(*bridge_abi.L2RelayedMessageEvent)
+			tmpOut.MessageHash = msgHash
+			return nil
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, err := watcher.parseBridgeEventLogs(logs)
+		assert.NoError(t, err)
+		assert.Empty(t, l2Messages)
+		assert.Len(t, relayedMessages, 1)
+		assert.Equal(t, relayedMessages[0].msgHash, msgHash)
+	})
+}
+
+func testParseBridgeEventLogsL2FailedRelayedMessageEventSignature(t *testing.T) {
+	watcher := setupL2Watcher(t)
+	logs := []geth_types.Log{
+		{
+			Topics:      []common.Hash{bridge_abi.L2FailedRelayedMessageEventSignature},
+			BlockNumber: 100,
+			TxHash:      common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
+		},
+	}
+
+	convey.Convey("unpack FailedRelayedMessage log failure", t, func() {
+		targetErr := errors.New("UnpackLog FailedRelayedMessage failure")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log geth_types.Log) error {
+			return targetErr
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, err := watcher.parseBridgeEventLogs(logs)
+		assert.EqualError(t, err, targetErr.Error())
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, relayedMessages)
+	})
+
+	convey.Convey("L2FailedRelayedMessageEventSignature success", t, func() {
+		msgHash := common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log geth_types.Log) error {
+			tmpOut := out.(*bridge_abi.L2FailedRelayedMessageEvent)
+			tmpOut.MessageHash = msgHash
+			return nil
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, err := watcher.parseBridgeEventLogs(logs)
+		assert.NoError(t, err)
+		assert.Empty(t, l2Messages)
+		assert.Len(t, relayedMessages, 1)
+		assert.Equal(t, relayedMessages[0].msgHash, msgHash)
+	})
+}
+
+func testParseBridgeEventLogsL2AppendMessageEventSignature(t *testing.T) {
+	watcher := setupL2Watcher(t)
+	logs := []geth_types.Log{
+		{
+			Topics:      []common.Hash{bridge_abi.L2AppendMessageEventSignature},
+			BlockNumber: 100,
+			TxHash:      common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
+		},
+	}
+
+	convey.Convey("unpack AppendMessage log failure", t, func() {
+		targetErr := errors.New("UnpackLog AppendMessage failure")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log geth_types.Log) error {
+			return targetErr
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, err := watcher.parseBridgeEventLogs(logs)
+		assert.EqualError(t, err, targetErr.Error())
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, relayedMessages)
+	})
+
+	convey.Convey("L2AppendMessageEventSignature success", t, func() {
+		msgHash := common.HexToHash("0xad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5")
+		patchGuard := gomonkey.ApplyFunc(utils.UnpackLog, func(c *abi.ABI, out interface{}, event string, log geth_types.Log) error {
+			tmpOut := out.(*bridge_abi.L2AppendMessageEvent)
+			tmpOut.MessageHash = msgHash
+			tmpOut.Index = big.NewInt(100)
+			return nil
+		})
+		defer patchGuard.Reset()
+
+		l2Messages, relayedMessages, err := watcher.parseBridgeEventLogs(logs)
+		assert.NoError(t, err)
+		assert.Empty(t, l2Messages)
+		assert.Empty(t, relayedMessages)
+	})
+}

bridge/watcher/watcher_test.go

@@ -0,0 +1,105 @@
+package watcher
+
+import (
+	"encoding/json"
+	"os"
+	"testing"
+
+	"github.com/scroll-tech/go-ethereum/ethclient"
+	"github.com/stretchr/testify/assert"
+
+	"scroll-tech/common/docker"
+	"scroll-tech/common/types"
+
+	"scroll-tech/bridge/config"
+)
+
+var (
+	// config
+	cfg *config.Config
+
+	base *docker.App
+
+	// l2geth client
+	l2Cli *ethclient.Client
+
+	// block trace
+	wrappedBlock1 *types.WrappedBlock
+	wrappedBlock2 *types.WrappedBlock
+)
+
+func setupEnv(t *testing.T) (err error) {
+	// Load config.
+	cfg, err = config.NewConfig("../config.json")
+	assert.NoError(t, err)
+
+	base.RunImages(t)
+
+	cfg.L2Config.RelayerConfig.SenderConfig.Endpoint = base.L1gethImg.Endpoint()
+	cfg.L1Config.RelayerConfig.SenderConfig.Endpoint = base.L2gethImg.Endpoint()
+	cfg.DBConfig = base.DBConfig
+
+	// Create l2geth client.
+	l2Cli, err = base.L2Client()
+	assert.NoError(t, err)
+
+	templateBlockTrace1, err := os.ReadFile("../../common/testdata/blockTrace_02.json")
+	if err != nil {
+		return err
+	}
+	// unmarshal blockTrace
+	wrappedBlock1 = &types.WrappedBlock{}
+	if err = json.Unmarshal(templateBlockTrace1, wrappedBlock1); err != nil {
+		return err
+	}
+
+	templateBlockTrace2, err := os.ReadFile("../../common/testdata/blockTrace_03.json")
+	if err != nil {
+		return err
+	}
+	// unmarshal blockTrace
+	wrappedBlock2 = &types.WrappedBlock{}
+	if err = json.Unmarshal(templateBlockTrace2, wrappedBlock2); err != nil {
+		return err
+	}
+	return err
+}
+
+func TestMain(m *testing.M) {
+	base = docker.NewDockerApp()
+
+	m.Run()
+
+	base.Free()
+}
+
+func TestFunction(t *testing.T) {
+	if err := setupEnv(t); err != nil {
+		t.Fatal(err)
+	}
+
+	// Run l1 watcher test cases.
+	t.Run("TestStartWatcher", testFetchContractEvent)
+	t.Run("TestL1WatcherClientFetchBlockHeader", testL1WatcherClientFetchBlockHeader)
+	t.Run("TestL1WatcherClientFetchContractEvent", testL1WatcherClientFetchContractEvent)
+	t.Run("TestParseBridgeEventLogsL1QueueTransactionEventSignature", testParseBridgeEventLogsL1QueueTransactionEventSignature)
+	t.Run("TestParseBridgeEventLogsL1RelayedMessageEventSignature", testParseBridgeEventLogsL1RelayedMessageEventSignature)
+	t.Run("TestParseBridgeEventLogsL1FailedRelayedMessageEventSignature", testParseBridgeEventLogsL1FailedRelayedMessageEventSignature)
+	t.Run("TestParseBridgeEventLogsL1CommitBatchEventSignature", testParseBridgeEventLogsL1CommitBatchEventSignature)
+	t.Run("TestParseBridgeEventLogsL1FinalizeBatchEventSignature", testParseBridgeEventLogsL1FinalizeBatchEventSignature)
+
+	// Run l2 watcher test cases.
+	t.Run("TestCreateNewWatcherAndStop", testCreateNewWatcherAndStop)
+	t.Run("TestMonitorBridgeContract", testMonitorBridgeContract)
+	t.Run("TestFetchMultipleSentMessageInOneBlock", testFetchMultipleSentMessageInOneBlock)
+	t.Run("TestFetchRunningMissingBlocks", testFetchRunningMissingBlocks)
+	t.Run("TestParseBridgeEventLogsL2SentMessageEventSignature", testParseBridgeEventLogsL2SentMessageEventSignature)
+	t.Run("TestParseBridgeEventLogsL2RelayedMessageEventSignature", testParseBridgeEventLogsL2RelayedMessageEventSignature)
+	t.Run("TestParseBridgeEventLogsL2FailedRelayedMessageEventSignature", testParseBridgeEventLogsL2FailedRelayedMessageEventSignature)
+	t.Run("TestParseBridgeEventLogsL2AppendMessageEventSignature", testParseBridgeEventLogsL2AppendMessageEventSignature)
+
+	// Run batch proposer test cases.
+	t.Run("TestBatchProposerProposeBatch", testBatchProposerProposeBatch)
+	t.Run("TestBatchProposerBatchGeneration", testBatchProposerBatchGeneration)
+	t.Run("TestBatchProposerGracefulRestart", testBatchProposerGracefulRestart)
+}

build/dockerfiles/bridgehistoryapi-cross-msg-fetcher.Dockerfile

@@ -0,0 +1,21 @@
+# Download Go dependencies
+FROM golang:1.20-alpine3.16 as base
+
+WORKDIR /src
+COPY go.mod* ./
+COPY ./bridge-history-api/go.* ./
+RUN go mod download -x
+
+# Build bridgehistoryapi-cross-msg-fetcher
+FROM base as builder
+
+RUN --mount=target=. \
+    --mount=type=cache,target=/root/.cache/go-build \
+    cd /src/bridge-history-api/cmd/cross_msg_fetcher && go build -v -p 4 -o /bin/bridgehistoryapi-cross-msg-fetcher
+
+# Pull bridgehistoryapi-cross-msg-fetcher into a second stage deploy alpine container
+FROM alpine:latest
+
+COPY --from=builder /bin/bridgehistoryapi-cross-msg-fetcher /bin/
+
+ENTRYPOINT ["bridgehistoryapi-cross-msg-fetcher"]

build/dockerfiles/bridgehistoryapi-db-cli.Dockerfile

@@ -0,0 +1,20 @@
+# Download Go dependencies
+FROM golang:1.20-alpine3.16 as base
+
+WORKDIR /src
+COPY ./bridge-history-api/go.* ./
+RUN go mod download -x
+
+# Build db_cli
+FROM base as builder
+
+RUN --mount=target=. \
+    --mount=type=cache,target=/root/.cache/go-build \
+    cd /src/bridge-history-api/cmd/db_cli && go build -v -p 4 -o /bin/db_cli
+
+# Pull db_cli into a second stage deploy alpine container
+FROM alpine:latest
+
+COPY --from=builder /bin/db_cli /bin/
+
+ENTRYPOINT ["db_cli"]