Support 12 and 18-word mnemonics with passphrases.

Only supports single-word (no whitespace) passphrases for 12 and 18 word
mnemonics.

Fixes #87

.github/workflows/docker.yml

@@ -1,58 +0,0 @@
-name: Docker
-
-on:
-  push:
-
-jobs:
-  # Set variables that will be available to all builds.
-  env_vars:
-    runs-on: ubuntu-latest
-    outputs:
-      release_version: ${{ steps.release_version.outputs.release_version }}
-      binary: ${{ steps.binary.outputs.binary }}
-    steps:
-      - id: release_version
-        run: |
-          RELEASE_VERSION=$(echo ${{ github.ref_name }} | sed -e 's/^[vt]//')
-          echo "release_version=${RELEASE_VERSION}" >> $GITHUB_OUTPUT
-      - id: binary
-        run: |
-          BINARY=$(basename ${{ github.repository }})
-          echo "binary=${BINARY}" >> $GITHUB_OUTPUT
-
-  # Build.
-  build:
-    runs-on: ubuntu-latest
-    needs: [env_vars]
-    steps:
-      - name: Check out repository into the Go module directory
-        uses: actions/checkout@v3
-
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@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
-        uses: docker/build-push-action@v4
-        with:
-          context: .
-          platforms: linux/amd64,linux/arm64/v8
-          push: true
-          tags: wealdtech/ethdo:latest
-
-      - name: build and push on release
-        uses: docker/build-push-action@v4
-        if: ${{ github.event.release.tag_name != '' }}
-        with:
-          context: .
-          platforms: linux/amd64,linux/arm64/v8
-          push: true
-          tags: wealdtech/ethdo:${{ github.event.release.tag_name }}

.github/workflows/golangci-lint.yml

@@ -1,23 +1,23 @@
 name: golangci-lint
 on:
   push:
-    tags:
-      - v*
     branches:
     - master
   pull_request:
+
 permissions:
   contents: read
+
 jobs:
   golangci:
     name: lint
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
-      - uses: actions/setup-go@v4
+      - uses: actions/setup-go@v3
         with:
-          go-version: '^1.21'
-      - uses: actions/checkout@v4
+          go-version: '1.20'
+      - uses: actions/checkout@v3
       - name: golangci-lint
-        uses: golangci/golangci-lint-action@v4
+        uses: golangci/golangci-lint-action@v3
         with:
-          only-new-issues: true
+          args: --timeout=60m

.github/workflows/release.yml

@@ -44,12 +44,12 @@ jobs:
     needs: [create_release, env_vars]
     steps:
       - name: Set up Go
-        uses: actions/setup-go@v4
+        uses: actions/setup-go@v3
         with:
-          go-version: '^1.21'
+          go-version: '^1.20'
 
       - name: Check out repository into the Go module directory
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
 
       - name: Select correct tag
         run: git checkout ${{ github.ref_name }}
@@ -119,12 +119,12 @@ jobs:
     needs: [create_release, env_vars]
     steps:
       - name: Set up Go
-        uses: actions/setup-go@v4
+        uses: actions/setup-go@v3
         with:
-          go-version: '^1.21'
+          go-version: '^1.20'
 
       - name: Check out repository into the Go module directory
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
 
       - name: Select correct tag
         run: git checkout ${{ github.ref_name }}
@@ -164,12 +164,12 @@ jobs:
     needs: [create_release, env_vars]
     steps:
       - name: Set up Go
-        uses: actions/setup-go@v4
+        uses: actions/setup-go@v3
         with:
-          go-version: '^1.21'
+          go-version: '^1.20'
 
       - name: Check out repository into the Go module directory
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
 
       - name: Select correct tag
         run: git checkout ${{ github.ref_name }}

.github/workflows/test.yml

@@ -6,10 +6,10 @@ on:
   pull_request:
 jobs:
   test:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
-      - uses: actions/setup-go@v4
+      - uses: actions/setup-go@v3
         with:
-          go-version: '^1.21'
-      - uses: actions/checkout@v4
+          go-version: '1.20'
+      - uses: actions/checkout@v3
       - uses: n8maninger/action-golang-test@v1

.golangci.yml

@@ -4,16 +4,6 @@
 # This file is not a configuration example,
 # it contains the exhaustive configuration with explanations of the options.
 
-issues:
-  # Which files to exclude: they will be analyzed, but issues from them won't be reported.
-  # There is no need to include all autogenerated files,
-  # we confidently recognize autogenerated files.
-  # If it's not, please let us know.
-  # "/" will be replaced by current OS file path separator to properly work on Windows.
-  # Default: []
-  exclude-files:
-    - ".*_ssz\\.go$"
-
 # Options for analysis running.
 run:
   # The default concurrency value is the number of available CPU.
@@ -49,6 +39,15 @@ run:
   # Default: true
   # skip-dirs-use-default: false
 
+  # Which files to skip: they will be analyzed, but issues from them won't be reported.
+  # Default value is empty list,
+  # but there is no need to include all autogenerated files,
+  # we confidently recognize autogenerated files.
+  # If it's not please let us know.
+  # "/" will be replaced by current OS file path separator to properly work on Windows.
+  skip-files:
+    - ".*_ssz\\.go$"
+
   # If set we pass it to "go list -mod={option}". From "go help modules":
   # If invoked with -mod=readonly, the go command is disallowed from the implicit
   # automatic updating of go.mod described above. Instead, it fails when any changes
@@ -128,12 +127,11 @@ linters:
   disable:
     - contextcheck
     - cyclop
-    - depguard
+    - deadcode
     - dupl
-    - err113
     - errorlint
-    - execinquery
     - exhaustive
+    - exhaustivestruct
     - exhaustruct
     - forbidigo
     - forcetypeassert
@@ -143,22 +141,29 @@ linters:
     - gochecknoinits
     - gocognit
     - goconst
+    - goerr113
     - goheader
+    - golint
     - gomnd
+    - ifshort
+    - interfacer
     - ireturn
     - lll
     - maintidx
-    - mnd
+    - maligned
     - musttag
     - nestif
     - nilnil
     - nlreturn
     - nolintlint
-    - perfsprint
+    - nosnakecase
     - promlinter
     - rowserrcheck
+    - scopelint
     - sqlclosecheck
+    - structcheck
     - unparam
+    - varcheck
     - varnamelen
     - wastedassign
     - wrapcheck

CHANGELOG.md

@@ -1,62 +1,8 @@
-1.35.5:
-  - allow keystore to be output to the console
-
-1.35.4:
-  - provide consensus and execution client info in block info output 
-
-1.35.3:
-  - provide better error message on context deadlline exceeded
-  - update launchpad output to match latest version
-  - add deposit contract address to "chain info"
-
-1.35.2:
-  - update dependencies
-
-1.35.1:
-  - fix output for various commands that may encounter an empty slot
-
-1.35.0:
-  - support Deneb
-  - add start and end dates for eth1votes period
-
-1.34.1:
-  - fix period parsing for "synccommittee members" command
-
-1.34.0:
-  - update dependencies
-  - use Capella fork for all exits
-  - support Deneb beta 5
-
-1.33.2:
-  - fix windows build
-
-1.33.1:
-  - add "slot" to "proposer duties" command
-  - add activation epoch and time to "validator info" command where applicable
-  - add "holesky" to the list of supported networks
-  - avoid crash when requesting validators from beacon node without debug enabled
-
-1.33.0:
-  - show all slots with 'synccommittee inclusion'
-  - add "wallet batch" command
-
-1.32.0:
-  - fix incorrect error when "deposit verify" is not given a withdrawal address
-  - allow truncated mnemonics (first four characters of each word)
-  - add deneb information to "block info"
-  - add epoch parameter to "validator yield"
-  - add proposer index to "block info"
-  - "block info" honours "--quiet" flag
-  - "block info" accepts "--block-time" option
-  - increase default operation timeout from 10s to 30s
-  - "epoch summary" JSON lists number of blobs
-
-1.31.0:
+dev:
   - initial support for deneb
   - add "--generate-keystore" option for "account derive"
   - update "validator exit" command to be able to generate multiple exits
   - support for 12-word and 18-word mnemonics with single-word (no whitespace) passphrases
-  - add JSON output for "validator expectation"
 
 1.30.0:
   - add "chain spec" command

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.21-bookworm as builder
+FROM golang:1.20-bullseye as builder
 
 WORKDIR /app
 
@@ -10,7 +10,7 @@ COPY . .
 
 RUN go build
 
-FROM debian:bookworm-slim
+FROM debian:bullseye-slim
 
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt install -y ca-certificates && apt-get clean && rm -rf /var/lib/apt/lists/*
 

README.md

@@ -38,7 +38,7 @@ docker pull wealdtech/ethdo
 go install github.com/wealdtech/ethdo@latest
 ```
 
-Note that `ethdo` requires at least version 1.20 of go to operate.  The version of go can be found with `go version`.
+Note that `ethdo` requires at least version 1.13 of go to operate.  The version of go can be found with `go version`.
 
 If this does not work please see the [troubleshooting](https://github.com/wealdtech/ethdo/blob/master/docs/troubleshooting.md) page.
 
@@ -151,13 +151,9 @@ Amazon S3-compatible stores have additional options available, which can be conf
 {
   "stores": {
     "s3": {
-      "region": "us-west-1",
-      "bucket": "my-s3-store",
-      "path": "/wallets",
-      "credentials": {
-        "id": "ABCDEF123",
-        "secret": "XXXXXXXXX"
-      }
+      "bucket":"mybucketname",
+      "path":"path/in/bucket",
+      "passphrase":"secret"
     }
   }
 }

beacon/chaininfo.go

@@ -18,12 +18,10 @@ import (
 	"encoding/hex"
 	"encoding/json"
 	"fmt"
-	"sort"
 	"strconv"
 	"strings"
 
 	consensusclient "github.com/attestantio/go-eth2-client"
-	"github.com/attestantio/go-eth2-client/api"
 	"github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/pkg/errors"
 	"github.com/wealdtech/ethdo/services/chaintime"
@@ -36,7 +34,6 @@ type ChainInfo struct {
 	GenesisValidatorsRoot          phase0.Root
 	Epoch                          phase0.Epoch
 	GenesisForkVersion             phase0.Version
-	ExitForkVersion                phase0.Version
 	CurrentForkVersion             phase0.Version
 	BLSToExecutionChangeDomainType phase0.DomainType
 	VoluntaryExitDomainType        phase0.DomainType
@@ -48,7 +45,6 @@ type chainInfoJSON struct {
 	GenesisValidatorsRoot          string           `json:"genesis_validators_root"`
 	Epoch                          string           `json:"epoch"`
 	GenesisForkVersion             string           `json:"genesis_fork_version"`
-	ExitForkVersion                string           `json:"exit_fork_version"`
 	CurrentForkVersion             string           `json:"current_fork_version"`
 	BLSToExecutionChangeDomainType string           `json:"bls_to_execution_change_domain_type"`
 	VoluntaryExitDomainType        string           `json:"voluntary_exit_domain_type"`
@@ -61,12 +57,11 @@ type chainInfoVersionJSON struct {
 // MarshalJSON implements json.Marshaler.
 func (c *ChainInfo) MarshalJSON() ([]byte, error) {
 	return json.Marshal(&chainInfoJSON{
-		Version:                        strconv.FormatUint(c.Version, 10),
+		Version:                        fmt.Sprintf("%d", c.Version),
 		Validators:                     c.Validators,
 		GenesisValidatorsRoot:          fmt.Sprintf("%#x", c.GenesisValidatorsRoot),
 		Epoch:                          fmt.Sprintf("%d", c.Epoch),
 		GenesisForkVersion:             fmt.Sprintf("%#x", c.GenesisForkVersion),
-		ExitForkVersion:                fmt.Sprintf("%#x", c.ExitForkVersion),
 		CurrentForkVersion:             fmt.Sprintf("%#x", c.CurrentForkVersion),
 		BLSToExecutionChangeDomainType: fmt.Sprintf("%#x", c.BLSToExecutionChangeDomainType),
 		VoluntaryExitDomainType:        fmt.Sprintf("%#x", c.VoluntaryExitDomainType),
@@ -87,7 +82,7 @@ func (c *ChainInfo) UnmarshalJSON(input []byte) error {
 	if err != nil {
 		return errors.Wrap(err, "version invalid")
 	}
-	if version < 3 {
+	if version < 2 {
 		return errors.New("outdated version; please regenerate your offline data")
 	}
 	c.Version = version
@@ -135,18 +130,6 @@ func (c *ChainInfo) UnmarshalJSON(input []byte) error {
 	}
 	copy(c.GenesisForkVersion[:], genesisForkVersionBytes)
 
-	if data.ExitForkVersion == "" {
-		return errors.New("exit fork version missing")
-	}
-	exitForkVersionBytes, err := hex.DecodeString(strings.TrimPrefix(data.ExitForkVersion, "0x"))
-	if err != nil {
-		return errors.Wrap(err, "exit fork version invalid")
-	}
-	if len(exitForkVersionBytes) != phase0.ForkVersionLength {
-		return errors.New("exit fork version incorrect length")
-	}
-	copy(c.ExitForkVersion[:], exitForkVersionBytes)
-
 	if data.CurrentForkVersion == "" {
 		return errors.New("current fork version missing")
 	}
@@ -252,18 +235,18 @@ func ObtainChainInfoFromNode(ctx context.Context,
 	error,
 ) {
 	res := &ChainInfo{
-		Version:    3,
+		Version:    2,
 		Validators: make([]*ValidatorInfo, 0),
 		Epoch:      chainTime.CurrentEpoch(),
 	}
 
 	// Obtain validators.
-	validatorsResponse, err := consensusClient.(consensusclient.ValidatorsProvider).Validators(ctx, &api.ValidatorsOpts{State: "head"})
+	validators, err := consensusClient.(consensusclient.ValidatorsProvider).Validators(ctx, "head", nil)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to obtain validators")
 	}
 
-	for _, validator := range validatorsResponse.Data {
+	for _, validator := range validators {
 		res.Validators = append(res.Validators, &ValidatorInfo{
 			Index:                 validator.Index,
 			Pubkey:                validator.Validator.PublicKey,
@@ -271,24 +254,20 @@ func ObtainChainInfoFromNode(ctx context.Context,
 			State:                 validator.Status,
 		})
 	}
-	// Order validators by index.
-	sort.Slice(res.Validators, func(i int, j int) bool {
-		return res.Validators[i].Index < res.Validators[j].Index
-	})
 
 	// Genesis validators root obtained from beacon node.
-	genesisResponse, err := consensusClient.(consensusclient.GenesisProvider).Genesis(ctx, &api.GenesisOpts{})
+	genesis, err := consensusClient.(consensusclient.GenesisProvider).Genesis(ctx)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to obtain genesis information")
 	}
-	res.GenesisValidatorsRoot = genesisResponse.Data.GenesisValidatorsRoot
+	res.GenesisValidatorsRoot = genesis.GenesisValidatorsRoot
 
 	// Fetch the genesis fork version from the specification.
-	specResponse, err := consensusClient.(consensusclient.SpecProvider).Spec(ctx, &api.SpecOpts{})
+	spec, err := consensusClient.(consensusclient.SpecProvider).Spec(ctx)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to obtain spec")
 	}
-	tmp, exists := specResponse.Data["GENESIS_FORK_VERSION"]
+	tmp, exists := spec["GENESIS_FORK_VERSION"]
 	if !exists {
 		return nil, errors.New("genesis fork version not known by chain")
 	}
@@ -298,34 +277,24 @@ func ObtainChainInfoFromNode(ctx context.Context,
 		return nil, errors.New("could not obtain GENESIS_FORK_VERSION")
 	}
 
-	// Fetch the exit fork version (Capella) from the specification.
-	tmp, exists = specResponse.Data["CAPELLA_FORK_VERSION"]
-	if !exists {
-		return nil, errors.New("capella fork version not known by chain")
-	}
-	res.ExitForkVersion, isForkVersion = tmp.(phase0.Version)
-	if !isForkVersion {
-		return nil, errors.New("could not obtain CAPELLA_FORK_VERSION")
-	}
-
 	// Fetch the current fork version from the fork schedule.
-	forkScheduleResponse, err := consensusClient.(consensusclient.ForkScheduleProvider).ForkSchedule(ctx, &api.ForkScheduleOpts{})
+	forkSchedule, err := consensusClient.(consensusclient.ForkScheduleProvider).ForkSchedule(ctx)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to obtain fork schedule")
 	}
-	for i := range forkScheduleResponse.Data {
-		if forkScheduleResponse.Data[i].Epoch <= res.Epoch {
-			res.CurrentForkVersion = forkScheduleResponse.Data[i].CurrentVersion
+	for i := range forkSchedule {
+		if forkSchedule[i].Epoch <= res.Epoch {
+			res.CurrentForkVersion = forkSchedule[i].CurrentVersion
 		}
 	}
 
-	blsToExecutionChangeDomainType, exists := specResponse.Data["DOMAIN_BLS_TO_EXECUTION_CHANGE"].(phase0.DomainType)
+	blsToExecutionChangeDomainType, exists := spec["DOMAIN_BLS_TO_EXECUTION_CHANGE"].(phase0.DomainType)
 	if !exists {
 		return nil, errors.New("failed to obtain DOMAIN_BLS_TO_EXECUTION_CHANGE")
 	}
 	copy(res.BLSToExecutionChangeDomainType[:], blsToExecutionChangeDomainType[:])
 
-	voluntaryExitDomainType, exists := specResponse.Data["DOMAIN_VOLUNTARY_EXIT"].(phase0.DomainType)
+	voluntaryExitDomainType, exists := spec["DOMAIN_VOLUNTARY_EXIT"].(phase0.DomainType)
 	if !exists {
 		return nil, errors.New("failed to obtain DOMAIN_VOLUNTARY_EXIT")
 	}

cmd/account/create/process.go

@@ -86,7 +86,7 @@ func processPathed(ctx context.Context, data *dataIn) (*dataOut, error) {
 	if data.passphrase == "" {
 		return nil, errors.New("passphrase is required")
 	}
-	match, err := regexp.MatchString("^m/[0-9]+/[0-9]+(/[0-9+])+", data.path)
+	match, err := regexp.Match("^m/[0-9]+/[0-9]+(/[0-9+])+", []byte(data.path))
 	if err != nil {
 		return nil, errors.Wrap(err, "unable to match path to regular expression")
 	}

cmd/account/create/run.go

@@ -1,4 +1,4 @@
-// Copyright © 2019 - 2024 Weald Technology Trading.
+// Copyright © 2019, 2020 Weald Technology Trading
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -15,8 +15,8 @@ package accountcreate
 
 import (
 	"context"
-	"errors"
 
+	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -26,7 +26,7 @@ func Run(cmd *cobra.Command) (string, error) {
 	ctx := context.Background()
 	dataIn, err := input(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to set up command"), err)
+		return "", errors.Wrap(err, "failed to obtain input")
 	}
 
 	// Further errors do not need a usage report.
@@ -34,12 +34,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	dataOut, err := process(ctx, dataIn)
 	if err != nil {
-		switch {
-		case errors.Is(err, context.DeadlineExceeded):
-			return "", errors.New("operation timed out; try increasing with --timeout option")
-		default:
-			return "", errors.Join(errors.New("failed to process"), err)
-		}
+		return "", errors.Wrap(err, "failed to process")
 	}
 
 	if !viper.GetBool("verbose") {
@@ -48,7 +43,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	results, err := output(ctx, dataOut)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to obtain output"), err)
+		return "", errors.Wrap(err, "failed to obtain output")
 	}
 
 	return results, nil

cmd/account/derive/input.go

@@ -22,7 +22,6 @@ import (
 
 type dataIn struct {
 	quiet bool
-	json  bool
 	// Derivation information.
 	mnemonic string
 	path     string
@@ -38,9 +37,6 @@ func input(_ context.Context) (*dataIn, error) {
 	// Quiet.
 	data.quiet = viper.GetBool("quiet")
 
-	// JSON.
-	data.json = viper.GetBool("json")
-
 	// Mnemonic.
 	if viper.GetString("mnemonic") == "" {
 		return nil, errors.New("mnemonic is required")

cmd/account/derive/output.go

@@ -15,7 +15,6 @@ package accountderive
 
 import (
 	"context"
-	"encoding/hex"
 	"encoding/json"
 	"fmt"
 	"os"
@@ -31,7 +30,6 @@ import (
 )
 
 type dataOut struct {
-	json                      bool
 	showPrivateKey            bool
 	showWithdrawalCredentials bool
 	generateKeystore          bool
@@ -86,7 +84,7 @@ func outputKeystore(_ context.Context, data *dataOut) (string, error) {
 	}
 	ks := make(map[string]interface{})
 	ks["uuid"] = uuid.String()
-	ks["pubkey"] = hex.EncodeToString(data.key.PublicKey().Marshal())
+	ks["pubkey"] = fmt.Sprintf("%x", data.key.PublicKey().Marshal())
 	ks["version"] = 4
 	ks["path"] = data.path
 	ks["crypto"] = crypto
@@ -95,14 +93,10 @@ func outputKeystore(_ context.Context, data *dataOut) (string, error) {
 		return "", errors.Wrap(err, "failed to marshal keystore JSON")
 	}
 
-	if data.json {
-		fmt.Fprintf(os.Stdout, "%s\n", string(out))
-	} else {
-		keystoreFilename := fmt.Sprintf("keystore-%s-%d.json", strings.ReplaceAll(data.path, "/", "_"), time.Now().Unix())
+	keystoreFilename := fmt.Sprintf("keystore-%s-%d.json", strings.ReplaceAll(data.path, "/", "_"), time.Now().Unix())
 
-		if err := os.WriteFile(keystoreFilename, out, 0o600); err != nil {
-			return "", errors.Wrap(err, fmt.Sprintf("failed to write %s", keystoreFilename))
-		}
+	if err := os.WriteFile(keystoreFilename, out, 0o600); err != nil {
+		return "", errors.Wrap(err, fmt.Sprintf("failed to write %s", keystoreFilename))
 	}
-	return "", nil
+	return "", errors.New("not implemented")
 }

cmd/account/derive/process.go

@@ -38,7 +38,6 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 	}
 
 	results := &dataOut{
-		json:                      data.json,
 		showPrivateKey:            data.showPrivateKey,
 		showWithdrawalCredentials: data.showWithdrawalCredentials,
 		generateKeystore:          data.generateKeystore,

cmd/account/derive/run.go

@@ -1,4 +1,4 @@
-// Copyright © 2020, 2024 Weald Technology Trading.
+// Copyright © 2020 Weald Technology Trading
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -15,9 +15,9 @@ package accountderive
 
 import (
 	"context"
-	"errors"
 	"strings"
 
+	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 )
 
@@ -26,7 +26,7 @@ func Run(cmd *cobra.Command) (string, error) {
 	ctx := context.Background()
 	dataIn, err := input(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to obtain input"), err)
+		return "", errors.Wrap(err, "failed to obtain input")
 	}
 
 	// Further errors do not need a usage report.
@@ -34,12 +34,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	dataOut, err := process(ctx, dataIn)
 	if err != nil {
-		switch {
-		case errors.Is(err, context.DeadlineExceeded):
-			return "", errors.New("operation timed out; try increasing with --timeout option")
-		default:
-			return "", errors.Join(errors.New("failed to process"), err)
-		}
+		return "", errors.Wrap(err, "failed to process")
 	}
 
 	if dataIn.quiet {
@@ -48,7 +43,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	results, err := output(ctx, dataOut)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to obtain output"), err)
+		return "", errors.Wrap(err, "failed to obtain output")
 	}
 
 	return strings.TrimSuffix(results, "\n"), nil

cmd/account/import/run.go

@@ -1,4 +1,4 @@
-// Copyright © 2019 - 2024 Weald Technology Trading.
+// Copyright © 2019, 2020 Weald Technology Trading
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -15,8 +15,8 @@ package accountimport
 
 import (
 	"context"
-	"errors"
 
+	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -26,7 +26,7 @@ func Run(cmd *cobra.Command) (string, error) {
 	ctx := context.Background()
 	dataIn, err := input(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to obtain input"), err)
+		return "", errors.Wrap(err, "failed to obtain input")
 	}
 
 	// Further errors do not need a usage report.
@@ -34,12 +34,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	dataOut, err := process(ctx, dataIn)
 	if err != nil {
-		switch {
-		case errors.Is(err, context.DeadlineExceeded):
-			return "", errors.New("operation timed out; try increasing with --timeout option")
-		default:
-			return "", errors.Join(errors.New("failed to process"), err)
-		}
+		return "", errors.Wrap(err, "failed to process")
 	}
 
 	if !viper.GetBool("verbose") {
@@ -48,7 +43,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	results, err := output(ctx, dataOut)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to obtain output"), err)
+		return "", errors.Wrap(err, "failed to obtain output")
 	}
 
 	return results, nil

cmd/account/key/run.go

@@ -1,4 +1,4 @@
-// Copyright © 2019 - 2024 Weald Technology Trading.
+// Copyright © 2019, 2020 Weald Technology Trading
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -15,8 +15,8 @@ package accountkey
 
 import (
 	"context"
-	"errors"
 
+	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -26,7 +26,7 @@ func Run(cmd *cobra.Command) (string, error) {
 	ctx := context.Background()
 	dataIn, err := input(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to set up command"), err)
+		return "", errors.Wrap(err, "failed to obtain input")
 	}
 
 	// Further errors do not need a usage report.
@@ -34,12 +34,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	dataOut, err := process(ctx, dataIn)
 	if err != nil {
-		switch {
-		case errors.Is(err, context.DeadlineExceeded):
-			return "", errors.New("operation timed out; try increasing with --timeout option")
-		default:
-			return "", errors.Join(errors.New("failed to process"), err)
-		}
+		return "", errors.Wrap(err, "failed to process")
 	}
 
 	if viper.GetBool("quiet") {
@@ -48,7 +43,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	results, err := output(ctx, dataOut)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to obtain output"), err)
+		return "", errors.Wrap(err, "failed to obtain output")
 	}
 
 	return results, nil

cmd/accountcreate.go

@@ -29,7 +29,7 @@ var accountCreateCmd = &cobra.Command{
     ethdo account create --account="primary/operations" --passphrase="my secret"
 
 In quiet mode this will return 0 if the account is created successfully, otherwise 1.`,
-	RunE: func(cmd *cobra.Command, _ []string) error {
+	RunE: func(cmd *cobra.Command, args []string) error {
 		res, err := accountcreate.Run(cmd)
 		if err != nil {
 			return err

cmd/accountderive.go

@@ -29,7 +29,7 @@ var accountDeriveCmd = &cobra.Command{
     ethdo account derive --mnemonic="..." --path="m/12381/3600/0/0"
 
 In quiet mode this will return 0 if the inputs can derive an account account, otherwise 1.`,
-	RunE: func(cmd *cobra.Command, _ []string) error {
+	RunE: func(cmd *cobra.Command, args []string) error {
 		res, err := accountderive.Run(cmd)
 		if err != nil {
 			return err
@@ -50,7 +50,6 @@ func init() {
 	accountDeriveCmd.Flags().Bool("show-private-key", false, "show private key for derived account")
 	accountDeriveCmd.Flags().Bool("show-withdrawal-credentials", false, "show withdrawal credentials for derived account")
 	accountDeriveCmd.Flags().Bool("generate-keystore", false, "generate a keystore for the derived account")
-	accountDeriveCmd.Flags().Bool("json", false, "display the JSON keystore for the derived account on stdout")
 }
 
 func accountDeriveBindings(cmd *cobra.Command) {
@@ -63,7 +62,4 @@ func accountDeriveBindings(cmd *cobra.Command) {
 	if err := viper.BindPFlag("generate-keystore", cmd.Flags().Lookup("generate-keystore")); err != nil {
 		panic(err)
 	}
-	if err := viper.BindPFlag("json", cmd.Flags().Lookup("json")); err != nil {
-		panic(err)
-	}
 }

cmd/accountimport.go

@@ -29,7 +29,7 @@ var accountImportCmd = &cobra.Command{
     ethdo account import --account="primary/testing" --key="0x..." --passphrase="my secret"
 
 In quiet mode this will return 0 if the account is imported successfully, otherwise 1.`,
-	RunE: func(cmd *cobra.Command, _ []string) error {
+	RunE: func(cmd *cobra.Command, args []string) error {
 		res, err := accountimport.Run(cmd)
 		if err != nil {
 			return err

cmd/accountinfo.go

@@ -33,7 +33,7 @@ var accountInfoCmd = &cobra.Command{
     ethdo account info --account="primary/my funds"
 
 In quiet mode this will return 0 if the account exists, otherwise 1.`,
-	Run: func(_ *cobra.Command, _ []string) {
+	Run: func(cmd *cobra.Command, args []string) {
 		ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
 		defer cancel()
 

cmd/accountkey.go

@@ -30,7 +30,7 @@ var accountKeyCmd = &cobra.Command{
     ethdo account key --account="Personal wallet/Operations" --passphrase="my account passphrase"
 
 In quiet mode this will return 0 if the key can be obtained, otherwise 1.`,
-	RunE: func(cmd *cobra.Command, _ []string) error {
+	RunE: func(cmd *cobra.Command, args []string) error {
 		res, err := accountkey.Run(cmd)
 		if err != nil {
 			return err

cmd/accountlock.go

@@ -29,7 +29,7 @@ var accountLockCmd = &cobra.Command{
     ethdo account lock --account="primary/my funds"
 
 In quiet mode this will return 0 if the account is locked, otherwise 1.`,
-	Run: func(_ *cobra.Command, _ []string) {
+	Run: func(cmd *cobra.Command, args []string) {
 		ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
 		defer cancel()
 

cmd/accountunlock.go

@@ -30,7 +30,7 @@ var accountUnlockCmd = &cobra.Command{
     ethdo account unlock --account="primary/my funds" --passphrase="secret"
 
 In quiet mode this will return 0 if the account is unlocked, otherwise 1.`,
-	Run: func(_ *cobra.Command, _ []string) {
+	Run: func(cmd *cobra.Command, args []string) {
 		ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
 		defer cancel()
 

cmd/attester/duties/input.go

@@ -72,7 +72,7 @@ func input(ctx context.Context) (*dataIn, error) {
 
 	data.chainTime, err = standardchaintime.New(ctx,
 		standardchaintime.WithSpecProvider(data.eth2Client.(eth2client.SpecProvider)),
-		standardchaintime.WithGenesisProvider(data.eth2Client.(eth2client.GenesisProvider)),
+		standardchaintime.WithGenesisTimeProvider(data.eth2Client.(eth2client.GenesisTimeProvider)),
 	)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to set up chaintime service")

cmd/attester/duties/process.go

@@ -17,8 +17,7 @@ import (
 	"context"
 
 	eth2client "github.com/attestantio/go-eth2-client"
-	"github.com/attestantio/go-eth2-client/api"
-	apiv1 "github.com/attestantio/go-eth2-client/api/v1"
+	api "github.com/attestantio/go-eth2-client/api/v1"
 	spec "github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/pkg/errors"
 	"github.com/wealdtech/ethdo/util"
@@ -50,16 +49,12 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 	return results, nil
 }
 
-func duty(ctx context.Context, eth2Client eth2client.Service, validator *apiv1.Validator, epoch spec.Epoch) (*apiv1.AttesterDuty, error) {
+func duty(ctx context.Context, eth2Client eth2client.Service, validator *api.Validator, epoch spec.Epoch) (*api.AttesterDuty, error) {
 	// Find the attesting slot for the given epoch.
-	dutiesResponse, err := eth2Client.(eth2client.AttesterDutiesProvider).AttesterDuties(ctx, &api.AttesterDutiesOpts{
-		Epoch:   epoch,
-		Indices: []spec.ValidatorIndex{validator.Index},
-	})
+	duties, err := eth2Client.(eth2client.AttesterDutiesProvider).AttesterDuties(ctx, epoch, []spec.ValidatorIndex{validator.Index})
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to obtain attester duties")
 	}
-	duties := dutiesResponse.Data
 
 	if len(duties) == 0 {
 		return nil, errors.New("validator does not have duty for that epoch")

cmd/attester/duties/process_internal_test.go

@@ -37,7 +37,7 @@ func TestProcess(t *testing.T) {
 
 	chainTime, err := standardchaintime.New(context.Background(),
 		standardchaintime.WithSpecProvider(eth2Client.(eth2client.SpecProvider)),
-		standardchaintime.WithGenesisProvider(eth2Client.(eth2client.GenesisProvider)),
+		standardchaintime.WithGenesisTimeProvider(eth2Client.(eth2client.GenesisTimeProvider)),
 	)
 	require.NoError(t, err)
 

cmd/attester/duties/run.go

@@ -1,4 +1,4 @@
-// Copyright © 2021, 2024 Weald Technology Trading.
+// Copyright © 2021 Weald Technology Trading
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -15,8 +15,8 @@ package attesterduties
 
 import (
 	"context"
-	"errors"
 
+	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -26,7 +26,7 @@ func Run(cmd *cobra.Command) (string, error) {
 	ctx := context.Background()
 	dataIn, err := input(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to set up command"), err)
+		return "", errors.Wrap(err, "failed to obtain input")
 	}
 
 	// Further errors do not need a usage report.
@@ -34,12 +34,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	dataOut, err := process(ctx, dataIn)
 	if err != nil {
-		switch {
-		case errors.Is(err, context.DeadlineExceeded):
-			return "", errors.New("operation timed out; try increasing with --timeout option")
-		default:
-			return "", errors.Join(errors.New("failed to process"), err)
-		}
+		return "", errors.Wrap(err, "failed to process")
 	}
 
 	if viper.GetBool("quiet") {
@@ -48,7 +43,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	results, err := output(ctx, dataOut)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to obtain output"), err)
+		return "", errors.Wrap(err, "failed to obtain output")
 	}
 
 	return results, nil

cmd/attester/inclusion/input.go

@@ -69,7 +69,7 @@ func input(ctx context.Context) (*dataIn, error) {
 
 	data.chainTime, err = standardchaintime.New(ctx,
 		standardchaintime.WithSpecProvider(data.eth2Client.(eth2client.SpecProvider)),
-		standardchaintime.WithGenesisProvider(data.eth2Client.(eth2client.GenesisProvider)),
+		standardchaintime.WithGenesisTimeProvider(data.eth2Client.(eth2client.GenesisTimeProvider)),
 	)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to set up chaintime service")

cmd/attester/inclusion/output.go

@@ -16,7 +16,6 @@ package attesterinclusion
 import (
 	"context"
 	"fmt"
-	"strconv"
 	"strings"
 
 	"github.com/attestantio/go-eth2-client/spec/phase0"
@@ -50,7 +49,7 @@ func output(_ context.Context, data *dataOut) (string, error) {
 			buf.WriteString("Attestation included in block ")
 			buf.WriteString(fmt.Sprintf("%d", data.slot))
 			buf.WriteString(", index ")
-			buf.WriteString(strconv.FormatUint(data.attestationIndex, 10))
+			buf.WriteString(fmt.Sprintf("%d", data.attestationIndex))
 			if data.verbose {
 				buf.WriteString("\nInclusion delay: ")
 				buf.WriteString(fmt.Sprintf("%d", data.inclusionDelay))

cmd/attester/inclusion/process.go

@@ -17,11 +17,9 @@ import (
 	"bytes"
 	"context"
 	"fmt"
-	"net/http"
 
 	eth2client "github.com/attestantio/go-eth2-client"
-	"github.com/attestantio/go-eth2-client/api"
-	apiv1 "github.com/attestantio/go-eth2-client/api/v1"
+	api "github.com/attestantio/go-eth2-client/api/v1"
 	"github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/pkg/errors"
 	standardchaintime "github.com/wealdtech/ethdo/services/chaintime/standard"
@@ -40,7 +38,7 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 
 	data.chainTime, err = standardchaintime.New(ctx,
 		standardchaintime.WithSpecProvider(data.eth2Client.(eth2client.SpecProvider)),
-		standardchaintime.WithGenesisProvider(data.eth2Client.(eth2client.GenesisProvider)),
+		standardchaintime.WithGenesisTimeProvider(data.eth2Client.(eth2client.GenesisTimeProvider)),
 	)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to set up chaintime service")
@@ -63,22 +61,14 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 	startSlot := duty.Slot + 1
 	endSlot := startSlot + 32
 	for slot := startSlot; slot < endSlot; slot++ {
-		blockResponse, err := data.eth2Client.(eth2client.SignedBeaconBlockProvider).SignedBeaconBlock(ctx, &api.SignedBeaconBlockOpts{
-			Block: fmt.Sprintf("%d", slot),
-		})
+		signedBlock, err := data.eth2Client.(eth2client.SignedBeaconBlockProvider).SignedBeaconBlock(ctx, fmt.Sprintf("%d", slot))
 		if err != nil {
-			var apiErr *api.Error
-			if errors.As(err, &apiErr) && apiErr.StatusCode == http.StatusNotFound {
-				// No block for this slot, that's fine.
-				continue
-			}
 			return nil, errors.Wrap(err, "failed to obtain block")
 		}
-		block := blockResponse.Data
-		if block == nil {
+		if signedBlock == nil {
 			continue
 		}
-		blockSlot, err := block.Slot()
+		blockSlot, err := signedBlock.Slot()
 		if err != nil {
 			return nil, errors.Wrap(err, "failed to obtain block slot")
 		}
@@ -88,7 +78,7 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 		if data.debug {
 			fmt.Printf("Fetched block for slot %d\n", slot)
 		}
-		attestations, err := block.Attestations()
+		attestations, err := signedBlock.Attestations()
 		if err != nil {
 			return nil, errors.Wrap(err, "failed to obtain block attestations")
 		}
@@ -131,25 +121,21 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 func calcHeadCorrect(ctx context.Context, data *dataIn, attestation *phase0.Attestation) (bool, error) {
 	slot := attestation.Data.Slot
 	for {
-		response, err := data.eth2Client.(eth2client.BeaconBlockHeadersProvider).BeaconBlockHeader(ctx, &api.BeaconBlockHeaderOpts{
-			Block: fmt.Sprintf("%d", slot),
-		})
+		header, err := data.eth2Client.(eth2client.BeaconBlockHeadersProvider).BeaconBlockHeader(ctx, fmt.Sprintf("%d", slot))
 		if err != nil {
-			var apiErr *api.Error
-			if errors.As(err, &apiErr) && apiErr.StatusCode == http.StatusNotFound {
-				// No block.
-				slot--
-				continue
-			}
-
 			return false, err
 		}
-		if !response.Data.Canonical {
+		if header == nil {
+			// No block.
+			slot--
+			continue
+		}
+		if !header.Canonical {
 			// Not canonical.
 			slot--
 			continue
 		}
-		return bytes.Equal(response.Data.Root[:], attestation.Data.BeaconBlockRoot[:]), nil
+		return bytes.Equal(header.Root[:], attestation.Data.BeaconBlockRoot[:]), nil
 	}
 }
 
@@ -157,38 +143,30 @@ func calcTargetCorrect(ctx context.Context, data *dataIn, attestation *phase0.At
 	// Start with first slot of the target epoch.
 	slot := data.chainTime.FirstSlotOfEpoch(attestation.Data.Target.Epoch)
 	for {
-		response, err := data.eth2Client.(eth2client.BeaconBlockHeadersProvider).BeaconBlockHeader(ctx, &api.BeaconBlockHeaderOpts{
-			Block: fmt.Sprintf("%d", slot),
-		})
+		header, err := data.eth2Client.(eth2client.BeaconBlockHeadersProvider).BeaconBlockHeader(ctx, fmt.Sprintf("%d", slot))
 		if err != nil {
-			var apiErr *api.Error
-			if errors.As(err, &apiErr) && apiErr.StatusCode == http.StatusNotFound {
-				// No block.
-				slot--
-				continue
-			}
-
 			return false, err
 		}
-		if !response.Data.Canonical {
+		if header == nil {
+			// No block.
+			slot--
+			continue
+		}
+		if !header.Canonical {
 			// Not canonical.
 			slot--
 			continue
 		}
-		return bytes.Equal(response.Data.Root[:], attestation.Data.Target.Root[:]), nil
+		return bytes.Equal(header.Root[:], attestation.Data.Target.Root[:]), nil
 	}
 }
 
-func duty(ctx context.Context, eth2Client eth2client.Service, validator *apiv1.Validator, epoch phase0.Epoch) (*apiv1.AttesterDuty, error) {
+func duty(ctx context.Context, eth2Client eth2client.Service, validator *api.Validator, epoch phase0.Epoch) (*api.AttesterDuty, error) {
 	// Find the attesting slot for the given epoch.
-	dutiesResponse, err := eth2Client.(eth2client.AttesterDutiesProvider).AttesterDuties(ctx, &api.AttesterDutiesOpts{
-		Epoch:   epoch,
-		Indices: []phase0.ValidatorIndex{validator.Index},
-	})
+	duties, err := eth2Client.(eth2client.AttesterDutiesProvider).AttesterDuties(ctx, epoch, []phase0.ValidatorIndex{validator.Index})
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to obtain attester duties")
 	}
-	duties := dutiesResponse.Data
 
 	if len(duties) == 0 {
 		return nil, errors.New("validator does not have duty for that epoch")

cmd/attester/inclusion/process_internal_test.go

@@ -37,7 +37,7 @@ func TestProcess(t *testing.T) {
 
 	chainTime, err := standardchaintime.New(context.Background(),
 		standardchaintime.WithSpecProvider(eth2Client.(eth2client.SpecProvider)),
-		standardchaintime.WithGenesisProvider(eth2Client.(eth2client.GenesisProvider)),
+		standardchaintime.WithGenesisTimeProvider(eth2Client.(eth2client.GenesisTimeProvider)),
 	)
 	require.NoError(t, err)
 

cmd/attester/inclusion/run.go

@@ -1,4 +1,4 @@
-// Copyright © 2019 - 2024 Weald Technology Trading.
+// Copyright © 2019, 2020 Weald Technology Trading
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -15,8 +15,8 @@ package attesterinclusion
 
 import (
 	"context"
-	"errors"
 
+	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -26,7 +26,7 @@ func Run(cmd *cobra.Command) (string, error) {
 	ctx := context.Background()
 	dataIn, err := input(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to set up command"), err)
+		return "", errors.Wrap(err, "failed to obtain input")
 	}
 
 	// Further errors do not need a usage report.
@@ -34,12 +34,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	dataOut, err := process(ctx, dataIn)
 	if err != nil {
-		switch {
-		case errors.Is(err, context.DeadlineExceeded):
-			return "", errors.New("operation timed out; try increasing with --timeout option")
-		default:
-			return "", errors.Join(errors.New("failed to process"), err)
-		}
+		return "", errors.Wrap(err, "failed to process")
 	}
 
 	if viper.GetBool("quiet") {
@@ -48,7 +43,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	results, err := output(ctx, dataOut)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to obtain output"), err)
+		return "", errors.Wrap(err, "failed to obtain output")
 	}
 
 	return results, nil

cmd/attesterduties.go

@@ -29,7 +29,7 @@ var attesterDutiesCmd = &cobra.Command{
     ethdo attester duties --validator=Validators/00001 --epoch=12345
 
 In quiet mode this will return 0 if a duty from the attester is found, otherwise 1.`,
-	RunE: func(cmd *cobra.Command, _ []string) error {
+	RunE: func(cmd *cobra.Command, args []string) error {
 		res, err := attesterduties.Run(cmd)
 		if err != nil {
 			return err

cmd/attesterinclusion.go

@@ -29,7 +29,7 @@ var attesterInclusionCmd = &cobra.Command{
     ethdo attester inclusion --validator=Validators/00001 --epoch=12345
 
 In quiet mode this will return 0 if an attestation from the attester is found on the block of the given epoch, otherwise 1.`,
-	RunE: func(cmd *cobra.Command, _ []string) error {
+	RunE: func(cmd *cobra.Command, args []string) error {
 		res, err := attesterinclusion.Run(cmd)
 		if err != nil {
 			return err

cmd/block/analyze/output.go

@@ -17,7 +17,6 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"strconv"
 	"strings"
 )
 
@@ -83,26 +82,26 @@ func (c *command) outputTxt(_ context.Context) (string, error) {
 	for i, attestation := range c.analysis.Attestations {
 		if c.verbose {
 			builder.WriteString("Attestation ")
-			builder.WriteString(strconv.Itoa(i))
+			builder.WriteString(fmt.Sprintf("%d", i))
 			builder.WriteString(": ")
 			builder.WriteString("distance ")
-			builder.WriteString(strconv.Itoa(attestation.Distance))
+			builder.WriteString(fmt.Sprintf("%d", attestation.Distance))
 			builder.WriteString(", ")
 
 			if attestation.Duplicate != nil {
 				builder.WriteString("duplicate of attestation ")
-				builder.WriteString(strconv.Itoa(attestation.Duplicate.Index))
+				builder.WriteString(fmt.Sprintf("%d", attestation.Duplicate.Index))
 				builder.WriteString(" in block ")
 				builder.WriteString(fmt.Sprintf("%d", attestation.Duplicate.Block))
 				builder.WriteString("\n")
 				continue
 			}
 
-			builder.WriteString(strconv.Itoa(attestation.NewVotes))
+			builder.WriteString(fmt.Sprintf("%d", attestation.NewVotes))
 			builder.WriteString("/")
-			builder.WriteString(strconv.Itoa(attestation.Votes))
+			builder.WriteString(fmt.Sprintf("%d", attestation.Votes))
 			builder.WriteString("/")
-			builder.WriteString(strconv.Itoa(attestation.PossibleVotes))
+			builder.WriteString(fmt.Sprintf("%d", attestation.PossibleVotes))
 			builder.WriteString(" new/total/possible votes")
 			if attestation.NewVotes == 0 {
 				builder.WriteString("\n")
@@ -138,7 +137,7 @@ func (c *command) outputTxt(_ context.Context) (string, error) {
 	if c.analysis.SyncCommitee.Contributions > 0 {
 		if c.verbose {
 			builder.WriteString("Sync committee contributions: ")
-			builder.WriteString(strconv.Itoa(c.analysis.SyncCommitee.Contributions))
+			builder.WriteString(fmt.Sprintf("%d", c.analysis.SyncCommitee.Contributions))
 			builder.WriteString(" contributions, score ")
 			builder.WriteString(fmt.Sprintf("%0.3f", c.analysis.SyncCommitee.Score))
 			builder.WriteString(", value ")

cmd/block/analyze/process.go

@@ -17,10 +17,8 @@ import (
 	"bytes"
 	"context"
 	"fmt"
-	"net/http"
 
 	eth2client "github.com/attestantio/go-eth2-client"
-	"github.com/attestantio/go-eth2-client/api"
 	"github.com/attestantio/go-eth2-client/spec"
 	"github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/pkg/errors"
@@ -35,17 +33,13 @@ func (c *command) process(ctx context.Context) error {
 		return err
 	}
 
-	blockResponse, err := c.blocksProvider.SignedBeaconBlock(ctx, &api.SignedBeaconBlockOpts{
-		Block: c.blockID,
-	})
+	block, err := c.blocksProvider.SignedBeaconBlock(ctx, c.blockID)
 	if err != nil {
-		var apiError *api.Error
-		if errors.As(err, &apiError) && apiError.StatusCode == http.StatusNotFound {
-			return errors.New("empty beacon block")
-		}
 		return errors.Wrap(err, "failed to obtain beacon block")
 	}
-	block := blockResponse.Data
+	if block == nil {
+		return errors.New("empty beacon block")
+	}
 
 	slot, err := block.Slot()
 	if err != nil {
@@ -151,7 +145,7 @@ func (c *command) analyzeAttestations(ctx context.Context, block *spec.Versioned
 			}
 
 			// Calculate head timely.
-			analysis.HeadTimely = analysis.HeadCorrect && attestation.Data.Slot == slot-1
+			analysis.HeadTimely = attestation.Data.Slot == slot-1
 
 			// Calculate source timely.
 			analysis.SourceTimely = attestation.Data.Slot >= slot-5
@@ -163,11 +157,7 @@ func (c *command) analyzeAttestations(ctx context.Context, block *spec.Versioned
 			}
 
 			// Calculate target timely.
-			if block.Version < spec.DataVersionDeneb {
-				analysis.TargetTimely = attestation.Data.Slot >= slot-32
-			} else {
-				analysis.TargetTimely = true
-			}
+			analysis.TargetTimely = attestation.Data.Slot >= slot-32
 		}
 
 		// Calculate score and value.
@@ -194,30 +184,12 @@ func (c *command) fetchParents(ctx context.Context, block *spec.VersionedSignedB
 	if err != nil {
 		return err
 	}
-	root, err := block.Deneb.HashTreeRoot()
-	if err != nil {
-		panic(err)
-	}
-	slot, err := block.Slot()
-	if err != nil {
-		panic(err)
-	}
-	if c.debug {
-		fmt.Printf("Parent root of %#x@%d is %#x\n", root, slot, parentRoot)
-	}
 
 	// Obtain the parent block.
-	parentBlockResponse, err := c.blocksProvider.SignedBeaconBlock(ctx, &api.SignedBeaconBlockOpts{
-		Block: fmt.Sprintf("%#x", parentRoot),
-	})
+	parentBlock, err := c.blocksProvider.SignedBeaconBlock(ctx, fmt.Sprintf("%#x", parentRoot))
 	if err != nil {
-		var apiError *api.Error
-		if errors.As(err, &apiError) && apiError.StatusCode == http.StatusNotFound {
-			return errors.New("empty beacon block")
-		}
 		return err
 	}
-	parentBlock := parentBlockResponse.Data
 	if parentBlock == nil {
 		return fmt.Errorf("unable to obtain parent block %s", parentBlock)
 	}
@@ -295,7 +267,7 @@ func (c *command) setup(ctx context.Context) error {
 
 	c.chainTime, err = standardchaintime.New(ctx,
 		standardchaintime.WithSpecProvider(c.eth2Client.(eth2client.SpecProvider)),
-		standardchaintime.WithGenesisProvider(c.eth2Client.(eth2client.GenesisProvider)),
+		standardchaintime.WithGenesisTimeProvider(c.eth2Client.(eth2client.GenesisTimeProvider)),
 	)
 	if err != nil {
 		return errors.Wrap(err, "failed to set up chaintime service")
@@ -317,12 +289,12 @@ func (c *command) setup(ctx context.Context) error {
 		return errors.New("connection does not provide spec information")
 	}
 
-	specResponse, err := specProvider.Spec(ctx, &api.SpecOpts{})
+	spec, err := specProvider.Spec(ctx)
 	if err != nil {
 		return errors.Wrap(err, "failed to obtain spec")
 	}
 
-	tmp, exists := specResponse.Data["TIMELY_SOURCE_WEIGHT"]
+	tmp, exists := spec["TIMELY_SOURCE_WEIGHT"]
 	if !exists {
 		// Set a default value based on the Altair spec.
 		tmp = uint64(14)
@@ -333,7 +305,7 @@ func (c *command) setup(ctx context.Context) error {
 		return errors.New("TIMELY_SOURCE_WEIGHT of unexpected type")
 	}
 
-	tmp, exists = specResponse.Data["TIMELY_TARGET_WEIGHT"]
+	tmp, exists = spec["TIMELY_TARGET_WEIGHT"]
 	if !exists {
 		// Set a default value based on the Altair spec.
 		tmp = uint64(26)
@@ -343,7 +315,7 @@ func (c *command) setup(ctx context.Context) error {
 		return errors.New("TIMELY_TARGET_WEIGHT of unexpected type")
 	}
 
-	tmp, exists = specResponse.Data["TIMELY_HEAD_WEIGHT"]
+	tmp, exists = spec["TIMELY_HEAD_WEIGHT"]
 	if !exists {
 		// Set a default value based on the Altair spec.
 		tmp = uint64(14)
@@ -353,7 +325,7 @@ func (c *command) setup(ctx context.Context) error {
 		return errors.New("TIMELY_HEAD_WEIGHT of unexpected type")
 	}
 
-	tmp, exists = specResponse.Data["SYNC_REWARD_WEIGHT"]
+	tmp, exists = spec["SYNC_REWARD_WEIGHT"]
 	if !exists {
 		// Set a default value based on the Altair spec.
 		tmp = uint64(2)
@@ -363,7 +335,7 @@ func (c *command) setup(ctx context.Context) error {
 		return errors.New("SYNC_REWARD_WEIGHT of unexpected type")
 	}
 
-	tmp, exists = specResponse.Data["PROPOSER_WEIGHT"]
+	tmp, exists = spec["PROPOSER_WEIGHT"]
 	if !exists {
 		// Set a default value based on the Altair spec.
 		tmp = uint64(8)
@@ -373,7 +345,7 @@ func (c *command) setup(ctx context.Context) error {
 		return errors.New("PROPOSER_WEIGHT of unexpected type")
 	}
 
-	tmp, exists = specResponse.Data["WEIGHT_DENOMINATOR"]
+	tmp, exists = spec["WEIGHT_DENOMINATOR"]
 	if !exists {
 		// Set a default value based on the Altair spec.
 		tmp = uint64(64)
@@ -390,31 +362,22 @@ func (c *command) calcHeadCorrect(ctx context.Context, attestation *phase0.Attes
 	root, exists := c.headRoots[slot]
 	if !exists {
 		for {
-			response, err := c.blockHeadersProvider.BeaconBlockHeader(ctx, &api.BeaconBlockHeaderOpts{
-				Block: fmt.Sprintf("%d", slot),
-			})
+			header, err := c.blockHeadersProvider.BeaconBlockHeader(ctx, fmt.Sprintf("%d", slot))
 			if err != nil {
-				var apiError *api.Error
-				if errors.As(err, &apiError) && apiError.StatusCode == http.StatusNotFound {
-					if c.debug {
-						fmt.Printf("No block available for slot %d, assuming not in canonical chain", slot)
-					}
-					return false, nil
-				}
 				return false, err
 			}
-			if response.Data == nil {
+			if header == nil {
 				// No block.
 				slot--
 				continue
 			}
-			if !response.Data.Canonical {
+			if !header.Canonical {
 				// Not canonical.
 				slot--
 				continue
 			}
-			c.headRoots[attestation.Data.Slot] = response.Data.Root
-			root = response.Data.Root
+			c.headRoots[attestation.Data.Slot] = header.Root
+			root = header.Root
 			break
 		}
 	}
@@ -428,30 +391,22 @@ func (c *command) calcTargetCorrect(ctx context.Context, attestation *phase0.Att
 		// Start with first slot of the target epoch.
 		slot := c.chainTime.FirstSlotOfEpoch(attestation.Data.Target.Epoch)
 		for {
-			response, err := c.blockHeadersProvider.BeaconBlockHeader(ctx, &api.BeaconBlockHeaderOpts{
-				Block: fmt.Sprintf("%d", slot),
-			})
+			header, err := c.blockHeadersProvider.BeaconBlockHeader(ctx, fmt.Sprintf("%d", slot))
 			if err != nil {
-				var apiError *api.Error
-				if errors.As(err, &apiError) && apiError.StatusCode == http.StatusNotFound {
-					if c.debug {
-						fmt.Printf("No block available for slot %d, assuming not in canonical chain", slot)
-					}
-					return false, nil
-				}
+				return false, err
 			}
-			if response.Data == nil {
+			if header == nil {
 				// No block.
 				slot--
 				continue
 			}
-			if !response.Data.Canonical {
+			if !header.Canonical {
 				// Not canonical.
 				slot--
 				continue
 			}
-			c.targetRoots[attestation.Data.Slot] = response.Data.Root
-			root = response.Data.Root
+			c.targetRoots[attestation.Data.Slot] = header.Root
+			root = header.Root
 			break
 		}
 	}

cmd/block/analyze/run.go

@@ -1,4 +1,4 @@
-// Copyright © 2022, 2024 Weald Technology Trading.
+// Copyright © 2022 Weald Technology Trading.
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -15,8 +15,8 @@ package blockanalyze
 
 import (
 	"context"
-	"errors"
 
+	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -27,19 +27,14 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	c, err := newCommand(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to set up command"), err)
+		return "", errors.Wrap(err, "failed to set up command")
 	}
 
 	// Further errors do not need a usage report.
 	cmd.SilenceUsage = true
 
 	if err := c.process(ctx); err != nil {
-		switch {
-		case errors.Is(err, context.DeadlineExceeded):
-			return "", errors.New("operation timed out; try increasing with --timeout option")
-		default:
-			return "", errors.Join(errors.New("failed to process"), err)
-		}
+		return "", errors.Wrap(err, "failed to process")
 	}
 
 	if viper.GetBool("quiet") {
@@ -48,7 +43,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	results, err := c.output(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to obtain output"), err)
+		return "", errors.Wrap(err, "failed to obtain output")
 	}
 
 	return results, nil

cmd/block/info/input.go

@@ -1,4 +1,4 @@
-// Copyright © 2019 - 2023 Weald Technology Trading.
+// Copyright © 2019, 2020 Weald Technology Trading
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -34,9 +34,8 @@ type dataIn struct {
 	jsonOutput bool
 	sszOutput  bool
 	// Chain information.
-	blockID   string
-	blockTime string
-	stream    bool
+	blockID string
+	stream  bool
 }
 
 func input(ctx context.Context) (*dataIn, error) {
@@ -51,8 +50,7 @@ func input(ctx context.Context) (*dataIn, error) {
 	data.debug = viper.GetBool("debug")
 	data.jsonOutput = viper.GetBool("json")
 	data.sszOutput = viper.GetBool("ssz")
-	data.blockID = viper.GetString("blockid")
-	data.blockTime = viper.GetString("block-time")
+
 	data.stream = viper.GetBool("stream")
 
 	var err error
@@ -66,5 +64,12 @@ func input(ctx context.Context) (*dataIn, error) {
 		return nil, err
 	}
 
+	if viper.GetString("blockid") == "" {
+		data.blockID = "head"
+	} else {
+		// Specific slot.
+		data.blockID = viper.GetString("blockid")
+	}
+
 	return data, nil
 }

cmd/block/info/output.go

@@ -19,15 +19,12 @@ import (
 	"encoding/hex"
 	"fmt"
 	"math/big"
-	"regexp"
 	"sort"
-	"strconv"
 	"strings"
 	"time"
 	"unicode/utf8"
 
 	eth2client "github.com/attestantio/go-eth2-client"
-	"github.com/attestantio/go-eth2-client/api"
 	"github.com/attestantio/go-eth2-client/spec/altair"
 	"github.com/attestantio/go-eth2-client/spec/bellatrix"
 	"github.com/attestantio/go-eth2-client/spec/capella"
@@ -55,10 +52,9 @@ func output(_ context.Context, data *dataOut) (string, error) {
 	return "", nil
 }
 
-func outputBlockGeneral(ctx context.Context,
+func outputBlockGeneral(_ context.Context,
 	verbose bool,
 	slot phase0.Slot,
-	proposerIndex phase0.ValidatorIndex,
 	blockRoot phase0.Root,
 	bodyRoot phase0.Root,
 	parentRoot phase0.Root,
@@ -74,7 +70,6 @@ func outputBlockGeneral(ctx context.Context,
 	res := strings.Builder{}
 
 	res.WriteString(fmt.Sprintf("Slot: %d\n", slot))
-	res.WriteString(fmt.Sprintf("Proposing validator index: %d\n", proposerIndex))
 	res.WriteString(fmt.Sprintf("Epoch: %d\n", phase0.Epoch(uint64(slot)/slotsPerEpoch)))
 	res.WriteString(fmt.Sprintf("Timestamp: %v\n", time.Unix(genesisTime.Unix()+int64(slot)*int64(slotDuration.Seconds()), 0)))
 	res.WriteString(fmt.Sprintf("Block root: %#x\n", blockRoot))
@@ -83,7 +78,14 @@ func outputBlockGeneral(ctx context.Context,
 		res.WriteString(fmt.Sprintf("Parent root: %#x\n", parentRoot))
 		res.WriteString(fmt.Sprintf("State root: %#x\n", stateRoot))
 	}
-	res.WriteString(blockGraffiti(ctx, graffiti))
+	if len(graffiti) > 0 && hex.EncodeToString(graffiti) != "0000000000000000000000000000000000000000000000000000000000000000" {
+		graffiti = bytes.TrimRight(graffiti, "\u0000")
+		if utf8.Valid(graffiti) {
+			res.WriteString(fmt.Sprintf("Graffiti: %s\n", string(graffiti)))
+		} else {
+			res.WriteString(fmt.Sprintf("Graffiti: %#x\n", graffiti))
+		}
+	}
 
 	return res.String(), nil
 }
@@ -112,14 +114,12 @@ func outputBlockAttestations(ctx context.Context, eth2Client eth2client.Service,
 				// Fetch committees for this epoch if not already obtained.
 				committees, exists := validatorCommittees[att.Data.Slot]
 				if !exists {
-					response, err := beaconCommitteesProvider.BeaconCommittees(ctx, &api.BeaconCommitteesOpts{
-						State: fmt.Sprintf("%d", att.Data.Slot),
-					})
+					beaconCommittees, err := beaconCommitteesProvider.BeaconCommittees(ctx, fmt.Sprintf("%d", att.Data.Slot))
 					if err != nil {
 						// Failed to get it; create an empty committee to stop us continually attempting to re-fetch.
 						validatorCommittees[att.Data.Slot] = make(map[phase0.CommitteeIndex][]phase0.ValidatorIndex)
 					} else {
-						for _, beaconCommittee := range response.Data {
+						for _, beaconCommittee := range beaconCommittees {
 							if _, exists := validatorCommittees[beaconCommittee.Slot]; !exists {
 								validatorCommittees[beaconCommittee.Slot] = make(map[phase0.CommitteeIndex][]phase0.ValidatorIndex)
 							}
@@ -164,14 +164,11 @@ func outputBlockAttesterSlashings(ctx context.Context, eth2Client eth2client.Ser
 
 			res.WriteString(fmt.Sprintf("  %d:\n", i))
 			res.WriteString(fmt.Sprintln("    Slashed validators:"))
-			response, err := eth2Client.(eth2client.ValidatorsProvider).Validators(ctx, &api.ValidatorsOpts{
-				State:   "head",
-				Indices: slashedIndices,
-			})
+			validators, err := eth2Client.(eth2client.ValidatorsProvider).Validators(ctx, "head", slashedIndices)
 			if err != nil {
 				return "", errors.Wrap(err, "failed to obtain beacon committees")
 			}
-			for k, v := range response.Data {
+			for k, v := range validators {
 				res.WriteString(fmt.Sprintf("      %#x (%d)\n", v.Validator.PublicKey[:], k))
 			}
 
@@ -224,14 +221,11 @@ func outputBlockVoluntaryExits(ctx context.Context, eth2Client eth2client.Servic
 	if verbose {
 		for i, voluntaryExit := range voluntaryExits {
 			res.WriteString(fmt.Sprintf("  %d:\n", i))
-			response, err := eth2Client.(eth2client.ValidatorsProvider).Validators(ctx, &api.ValidatorsOpts{
-				State:   "head",
-				Indices: []phase0.ValidatorIndex{voluntaryExit.Message.ValidatorIndex},
-			})
+			validators, err := eth2Client.(eth2client.ValidatorsProvider).Validators(ctx, "head", []phase0.ValidatorIndex{voluntaryExit.Message.ValidatorIndex})
 			if err != nil {
 				res.WriteString(fmt.Sprintf("  Error: failed to obtain validators: %v\n", err))
 			} else {
-				res.WriteString(fmt.Sprintf("    Validator: %#x (%d)\n", response.Data[voluntaryExit.Message.ValidatorIndex].Validator.PublicKey, voluntaryExit.Message.ValidatorIndex))
+				res.WriteString(fmt.Sprintf("    Validator: %#x (%d)\n", validators[voluntaryExit.Message.ValidatorIndex].Validator.PublicKey, voluntaryExit.Message.ValidatorIndex))
 				res.WriteString(fmt.Sprintf("    Epoch: %d\n", voluntaryExit.Message.Epoch))
 			}
 		}
@@ -247,14 +241,11 @@ func outputBlockBLSToExecutionChanges(ctx context.Context, eth2Client eth2client
 	if verbose {
 		for i, op := range ops {
 			res.WriteString(fmt.Sprintf("  %d:\n", i))
-			response, err := eth2Client.(eth2client.ValidatorsProvider).Validators(ctx, &api.ValidatorsOpts{
-				State:   "head",
-				Indices: []phase0.ValidatorIndex{op.Message.ValidatorIndex},
-			})
+			validators, err := eth2Client.(eth2client.ValidatorsProvider).Validators(ctx, "head", []phase0.ValidatorIndex{op.Message.ValidatorIndex})
 			if err != nil {
 				res.WriteString(fmt.Sprintf("  Error: failed to obtain validators: %v\n", err))
 			} else {
-				res.WriteString(fmt.Sprintf("    Validator: %#x (%d)\n", response.Data[op.Message.ValidatorIndex].Validator.PublicKey, op.Message.ValidatorIndex))
+				res.WriteString(fmt.Sprintf("    Validator: %#x (%d)\n", validators[op.Message.ValidatorIndex].Validator.PublicKey, op.Message.ValidatorIndex))
 				res.WriteString(fmt.Sprintf("    BLS public key: %#x\n", op.Message.FromBLSPubkey))
 				res.WriteString(fmt.Sprintf("    Execution address: %s\n", op.Message.ToExecutionAddress.String()))
 			}
@@ -272,9 +263,9 @@ func outputBlockSyncAggregate(ctx context.Context, eth2Client eth2client.Service
 	if verbose {
 		specProvider, isProvider := eth2Client.(eth2client.SpecProvider)
 		if isProvider {
-			specResponse, err := specProvider.Spec(ctx, &api.SpecOpts{})
+			config, err := specProvider.Spec(ctx)
 			if err == nil {
-				slotsPerEpoch := specResponse.Data["SLOTS_PER_EPOCH"].(uint64)
+				slotsPerEpoch := config["SLOTS_PER_EPOCH"].(uint64)
 
 				res.WriteString("  Contributions: ")
 				res.WriteString(bitvectorToString(syncAggregate.SyncCommitteeBits))
@@ -282,16 +273,14 @@ func outputBlockSyncAggregate(ctx context.Context, eth2Client eth2client.Service
 
 				syncCommitteesProvider, isProvider := eth2Client.(eth2client.SyncCommitteesProvider)
 				if isProvider {
-					syncCommitteeResponse, err := syncCommitteesProvider.SyncCommittee(ctx, &api.SyncCommitteeOpts{
-						State: strconv.FormatUint(uint64(epoch)*slotsPerEpoch, 10),
-					})
+					syncCommittee, err := syncCommitteesProvider.SyncCommittee(ctx, fmt.Sprintf("%d", uint64(epoch)*slotsPerEpoch))
 					if err != nil {
 						res.WriteString(fmt.Sprintf("  Error: failed to obtain sync committee: %v\n", err))
 					} else {
 						res.WriteString("  Contributing validators:")
 						for i := uint64(0); i < syncAggregate.SyncCommitteeBits.Len(); i++ {
 							if syncAggregate.SyncCommitteeBits.BitAt(i) {
-								res.WriteString(fmt.Sprintf(" %d", syncCommitteeResponse.Data.Validators[i]))
+								res.WriteString(fmt.Sprintf(" %d", syncCommittee.Validators[i]))
 							}
 						}
 						res.WriteString("\n")
@@ -326,7 +315,6 @@ func outputCapellaBlockText(ctx context.Context, data *dataOut, signedBlock *cap
 	tmp, err := outputBlockGeneral(ctx,
 		data.verbose,
 		signedBlock.Message.Slot,
-		signedBlock.Message.ProposerIndex,
 		blockRoot,
 		bodyRoot,
 		signedBlock.Message.ParentRoot,
@@ -401,14 +389,7 @@ func outputCapellaBlockText(ctx context.Context, data *dataOut, signedBlock *cap
 	return res.String(), nil
 }
 
-func outputDenebBlockText(ctx context.Context,
-	data *dataOut,
-	signedBlock *deneb.SignedBeaconBlock,
-	blobs []*deneb.BlobSidecar,
-) (
-	string,
-	error,
-) {
+func outputDenebBlockText(ctx context.Context, data *dataOut, signedBlock *deneb.SignedBeaconBlock) (string, error) {
 	if signedBlock == nil {
 		return "", errors.New("no block supplied")
 	}
@@ -430,7 +411,6 @@ func outputDenebBlockText(ctx context.Context,
 	tmp, err := outputBlockGeneral(ctx,
 		data.verbose,
 		signedBlock.Message.Slot,
-		signedBlock.Message.ProposerIndex,
 		blockRoot,
 		bodyRoot,
 		signedBlock.Message.ParentRoot,
@@ -502,7 +482,7 @@ func outputDenebBlockText(ctx context.Context,
 	}
 	res.WriteString(tmp)
 
-	tmp, err = outputDenebBlobInfo(ctx, data.verbose, signedBlock.Message.Body, blobs)
+	tmp, err = outputDenebBlobInfo(ctx, data.verbose, signedBlock.Message.Body)
 	if err != nil {
 		return "", err
 	}
@@ -533,7 +513,6 @@ func outputBellatrixBlockText(ctx context.Context, data *dataOut, signedBlock *b
 	tmp, err := outputBlockGeneral(ctx,
 		data.verbose,
 		signedBlock.Message.Slot,
-		signedBlock.Message.ProposerIndex,
 		blockRoot,
 		bodyRoot,
 		signedBlock.Message.ParentRoot,
@@ -624,7 +603,6 @@ func outputAltairBlockText(ctx context.Context, data *dataOut, signedBlock *alta
 	tmp, err := outputBlockGeneral(ctx,
 		data.verbose,
 		signedBlock.Message.Slot,
-		signedBlock.Message.ProposerIndex,
 		blockRoot,
 		bodyRoot,
 		signedBlock.Message.ParentRoot,
@@ -708,7 +686,6 @@ func outputPhase0BlockText(ctx context.Context, data *dataOut, signedBlock *phas
 	tmp, err := outputBlockGeneral(ctx,
 		data.verbose,
 		signedBlock.Message.Slot,
-		signedBlock.Message.ProposerIndex,
 		blockRoot,
 		bodyRoot,
 		signedBlock.Message.ParentRoot,
@@ -890,8 +867,9 @@ func outputDenebBlockExecutionPayload(_ context.Context,
 		res.WriteString(fmt.Sprintf("%d\n", len(payload.Transactions)))
 		res.WriteString("  Withdrawals: ")
 		res.WriteString(fmt.Sprintf("%d\n", len(payload.Withdrawals)))
-		res.WriteString("  Excess blob gas: ")
-		res.WriteString(fmt.Sprintf("%d\n", payload.ExcessBlobGas))
+		res.WriteString("  Excess data gas: ")
+		res.WriteString(payload.ExcessDataGas.Dec())
+		res.WriteString("\n")
 	}
 
 	return res.String(), nil
@@ -900,7 +878,6 @@ func outputDenebBlockExecutionPayload(_ context.Context,
 func outputDenebBlobInfo(_ context.Context,
 	verbose bool,
 	body *deneb.BeaconBlockBody,
-	blobs []*deneb.BlobSidecar,
 ) (
 	string,
 	error,
@@ -909,18 +886,15 @@ func outputDenebBlobInfo(_ context.Context,
 		return "", nil
 	}
 
-	if !verbose {
-		return fmt.Sprintf("Blobs: %d\n", len(body.BlobKZGCommitments)), nil
-	}
-
 	res := strings.Builder{}
 
-	for i, blob := range blobs {
-		if i == 0 {
-			res.WriteString("Blobs\n")
+	if !verbose {
+		res.WriteString(fmt.Sprintf("Blob KZG commitments: %d\n", len(body.BlobKzgCommitments)))
+	} else if len(body.BlobKzgCommitments) > 0 {
+		res.WriteString("Blob KZG commitments:\n")
+		for i := range body.BlobKzgCommitments {
+			res.WriteString(fmt.Sprintf("  %s\n", body.BlobKzgCommitments[i].String()))
 		}
-		res.WriteString(fmt.Sprintf("  Index: %d\n", blob.Index))
-		res.WriteString(fmt.Sprintf("  KZG commitment: %s\n", body.BlobKZGCommitments[i].String()))
 	}
 
 	return res.String(), nil
@@ -1056,94 +1030,3 @@ func attestingIndices(input bitfield.Bitlist, indices []phase0.ValidatorIndex) s
 	}
 	return strings.TrimSpace(res)
 }
-
-func blockGraffiti(_ context.Context, graffiti []byte) string {
-	if len(graffiti) == 0 || hex.EncodeToString(graffiti) == "0000000000000000000000000000000000000000000000000000000000000000" {
-		// No graffiti.
-		return ""
-	}
-
-	// Remove any trailing null characters.
-	graffiti = bytes.TrimRight(graffiti, "\u0000")
-
-	if !utf8.Valid(graffiti) {
-		// Graffiti is not valid UTF-8, return hex.
-		return fmt.Sprintf("Graffiti: %#x\n", graffiti)
-	}
-
-	// See if there is client identification information present in the graffiti.
-	// The client identification will always be the last entry in the graffiti, with a space beforehand.
-	parts := bytes.Split(graffiti, []byte{' '})
-
-	// Consensus and execution client values come from
-	// https://github.com/ethereum/execution-apis/blob/main/src/engine/identification.md
-	consensusClients := map[string]string{
-		"GR": "grandine",
-		"LH": "lighthouse",
-		"LS": "lodestar",
-		"NB": "nimbus",
-		"PM": "prysm",
-		"TK": "teku",
-	}
-	consensusRegex := regexp.MustCompile(`(GR|LH|LS|NB|PM|TK)([0-9a-f]*)`)
-	consensusData := consensusRegex.Find(parts[len(parts)-1])
-
-	executionClients := map[string]string{
-		"BU": "besu",
-		"EG": "erigon",
-		"EJ": "ethereumJS",
-		"GE": "go-ethereum",
-		"NM": "nethermind",
-		"RH": "reth",
-	}
-	executionRegex := regexp.MustCompile(`(BU|EG|EJ|GE|NM|RH)([0-9a-f]*)`)
-	executionData := executionRegex.Find(parts[len(parts)-1])
-
-	if len(consensusData) == 0 && len(executionData) == 0 {
-		// There is no identifier; return the graffiti as-is.
-		return fmt.Sprintf("Graffiti: %s\n", string(graffiti))
-	}
-
-	res := strings.Builder{}
-
-	truncatedGraffiti := bytes.Join(parts[0:len(parts)-1], []byte(" "))
-	if len(truncatedGraffiti) > 0 {
-		res.WriteString(fmt.Sprintf("Graffiti: %s\n", string(truncatedGraffiti)))
-	}
-
-	if len(consensusData) > 0 {
-		consensusClient := consensusData[0:2]
-		consensusHash := ""
-		if len(consensusData) > 2 {
-			consensusHash = string(consensusData[2:])
-		}
-
-		res.WriteString("Consensus client: ")
-		res.WriteString(consensusClients[string(consensusClient)])
-		if consensusHash != "" {
-			res.WriteString(" (version hash ")
-			res.WriteString(consensusHash)
-			res.WriteString(")")
-		}
-		res.WriteString("\n")
-	}
-
-	if len(executionData) > 0 {
-		executionClient := executionData[0:2]
-		executionHash := ""
-		if len(executionData) > 2 {
-			executionHash = string(executionData[2:])
-		}
-
-		res.WriteString("Execution client: ")
-		res.WriteString(executionClients[string(executionClient)])
-		if executionHash != "" {
-			res.WriteString(" (version hash ")
-			res.WriteString(executionHash)
-			res.WriteString(")")
-		}
-		res.WriteString("\n")
-	}
-
-	return res.String()
-}

cmd/block/info/output_internal_test.go

@@ -175,58 +175,3 @@ func TestOutputBlockETH1Data(t *testing.T) {
 		})
 	}
 }
-
-func TestBlockGraffiti(t *testing.T) {
-	tests := []struct {
-		name     string
-		graffiti []byte
-		res      string
-	}{
-		{
-			name:     "Empty",
-			graffiti: []byte(""),
-		},
-		{
-			name:     "NoID",
-			graffiti: []byte("No identifier"),
-			res:      "Graffiti: No identifier\n",
-		},
-		{
-			name:     "SingleClient",
-			graffiti: []byte("Graffiti TK"),
-			res:      "Graffiti: Graffiti\nConsensus client: teku\n",
-		},
-		{
-			name:     "SingleClientImmediate",
-			graffiti: []byte("TK"),
-			res:      "Consensus client: teku\n",
-		},
-		{
-			name:     "SingleClientAndHashImmediate",
-			graffiti: []byte("TKa9f98260"),
-			res:      "Consensus client: teku (version hash a9f98260)\n",
-		},
-		{
-			name:     "DualClients",
-			graffiti: []byte("LHGE"),
-			res:      "Consensus client: lighthouse\nExecution client: go-ethereum\n",
-		},
-		{
-			name:     "DualClientsReverseOrder",
-			graffiti: []byte("GELH"),
-			res:      "Consensus client: lighthouse\nExecution client: go-ethereum\n",
-		},
-		{
-			name:     "DualClientsTruncatedHash",
-			graffiti: []byte("Freedom To Transact TKa9f9NM220b"),
-			res:      "Graffiti: Freedom To Transact\nConsensus client: teku (version hash a9f9)\nExecution client: nethermind (version hash 220b)\n",
-		},
-	}
-
-	for _, test := range tests {
-		t.Run(test.name, func(t *testing.T) {
-			res := blockGraffiti(context.Background(), test.graffiti)
-			require.Equal(t, test.res, res)
-		})
-	}
-}

cmd/block/info/process.go

@@ -17,15 +17,10 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"net/http"
-	"os"
-	"strconv"
-	"strings"
 	"time"
 
 	eth2client "github.com/attestantio/go-eth2-client"
-	"github.com/attestantio/go-eth2-client/api"
-	apiv1 "github.com/attestantio/go-eth2-client/api/v1"
+	api "github.com/attestantio/go-eth2-client/api/v1"
 	"github.com/attestantio/go-eth2-client/spec"
 	"github.com/attestantio/go-eth2-client/spec/altair"
 	"github.com/attestantio/go-eth2-client/spec/bellatrix"
@@ -33,7 +28,6 @@ import (
 	"github.com/attestantio/go-eth2-client/spec/deneb"
 	"github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/pkg/errors"
-	standardchaintime "github.com/wealdtech/ethdo/services/chaintime/standard"
 )
 
 var (
@@ -46,8 +40,8 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 	if data == nil {
 		return nil, errors.New("no data")
 	}
-	if data.blockID == "" && data.blockTime == "" {
-		return nil, errors.New("no block ID or block time")
+	if data.blockID == "" {
+		return nil, errors.New("no block ID")
 	}
 
 	results = &dataOut{
@@ -56,72 +50,44 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 		eth2Client: data.eth2Client,
 	}
 
-	specResponse, err := results.eth2Client.(eth2client.SpecProvider).Spec(ctx, &api.SpecOpts{})
+	config, err := results.eth2Client.(eth2client.SpecProvider).Spec(ctx)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to connect to obtain configuration information")
 	}
-	genesisResponse, err := results.eth2Client.(eth2client.GenesisProvider).Genesis(ctx, &api.GenesisOpts{})
+	genesis, err := results.eth2Client.(eth2client.GenesisProvider).Genesis(ctx)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to connect to obtain genesis information")
 	}
-	genesis := genesisResponse.Data
 	results.genesisTime = genesis.GenesisTime
-	results.slotDuration = specResponse.Data["SECONDS_PER_SLOT"].(time.Duration)
-	results.slotsPerEpoch = specResponse.Data["SLOTS_PER_EPOCH"].(uint64)
+	results.slotDuration = config["SECONDS_PER_SLOT"].(time.Duration)
+	results.slotsPerEpoch = config["SLOTS_PER_EPOCH"].(uint64)
 
-	if data.blockTime != "" {
-		data.blockID, err = timeToBlockID(ctx, data.eth2Client, data.blockTime)
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	blockResponse, err := results.eth2Client.(eth2client.SignedBeaconBlockProvider).SignedBeaconBlock(ctx, &api.SignedBeaconBlockOpts{
-		Block: data.blockID,
-	})
+	signedBlock, err := results.eth2Client.(eth2client.SignedBeaconBlockProvider).SignedBeaconBlock(ctx, data.blockID)
 	if err != nil {
-		var apiErr *api.Error
-		if errors.As(err, &apiErr) && apiErr.StatusCode == http.StatusNotFound {
-			if data.quiet {
-				os.Exit(1)
-			}
-
-			return nil, errors.New("empty beacon block")
-		}
-
 		return nil, errors.Wrap(err, "failed to obtain beacon block")
 	}
-	block := blockResponse.Data
-	if data.quiet {
-		os.Exit(0)
+	if signedBlock == nil {
+		return nil, errors.New("empty beacon block")
 	}
-
-	switch block.Version {
+	switch signedBlock.Version {
 	case spec.DataVersionPhase0:
-		if err := outputPhase0Block(ctx, data.jsonOutput, block.Phase0); err != nil {
+		if err := outputPhase0Block(ctx, data.jsonOutput, signedBlock.Phase0); err != nil {
 			return nil, errors.Wrap(err, "failed to output block")
 		}
 	case spec.DataVersionAltair:
-		if err := outputAltairBlock(ctx, data.jsonOutput, data.sszOutput, block.Altair); err != nil {
+		if err := outputAltairBlock(ctx, data.jsonOutput, data.sszOutput, signedBlock.Altair); err != nil {
 			return nil, errors.Wrap(err, "failed to output block")
 		}
 	case spec.DataVersionBellatrix:
-		if err := outputBellatrixBlock(ctx, data.jsonOutput, data.sszOutput, block.Bellatrix); err != nil {
+		if err := outputBellatrixBlock(ctx, data.jsonOutput, data.sszOutput, signedBlock.Bellatrix); err != nil {
 			return nil, errors.Wrap(err, "failed to output block")
 		}
 	case spec.DataVersionCapella:
-		if err := outputCapellaBlock(ctx, data.jsonOutput, data.sszOutput, block.Capella); err != nil {
+		if err := outputCapellaBlock(ctx, data.jsonOutput, data.sszOutput, signedBlock.Capella); err != nil {
 			return nil, errors.Wrap(err, "failed to output block")
 		}
 	case spec.DataVersionDeneb:
-		blobSidecarsResponse, err := results.eth2Client.(eth2client.BlobSidecarsProvider).BlobSidecars(ctx, &api.BlobSidecarsOpts{
-			Block: data.blockID,
-		})
-		if err != nil {
-			return nil, errors.Wrap(err, "failed to obtain blob sidecars")
-		}
-		blobSidecars := blobSidecarsResponse.Data
-		if err := outputDenebBlock(ctx, data.jsonOutput, data.sszOutput, block.Deneb, blobSidecars); err != nil {
+		if err := outputDenebBlock(ctx, data.jsonOutput, data.sszOutput, signedBlock.Deneb); err != nil {
 			return nil, errors.Wrap(err, "failed to output block")
 		}
 	default:
@@ -144,49 +110,38 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 	return &dataOut{}, nil
 }
 
-func headEventHandler(event *apiv1.Event) {
-	ctx := context.Background()
-
+func headEventHandler(event *api.Event) {
 	// Only interested in head events.
 	if event.Topic != "head" {
 		return
 	}
 
-	blockID := fmt.Sprintf("%#x", event.Data.(*apiv1.HeadEvent).Block[:])
-	blockResponse, err := results.eth2Client.(eth2client.SignedBeaconBlockProvider).SignedBeaconBlock(ctx, &api.SignedBeaconBlockOpts{
-		Block: blockID,
-	})
+	blockID := fmt.Sprintf("%#x", event.Data.(*api.HeadEvent).Block[:])
+	signedBlock, err := results.eth2Client.(eth2client.SignedBeaconBlockProvider).SignedBeaconBlock(context.Background(), blockID)
 	if err != nil {
 		if !jsonOutput && !sszOutput {
 			fmt.Printf("Failed to obtain block: %v\n", err)
 		}
 		return
 	}
-	block := blockResponse.Data
-	if block == nil {
+	if signedBlock == nil {
 		if !jsonOutput && !sszOutput {
 			fmt.Println("Empty beacon block")
 		}
 		return
 	}
 
-	switch block.Version {
+	switch signedBlock.Version {
 	case spec.DataVersionPhase0:
-		err = outputPhase0Block(ctx, jsonOutput, block.Phase0)
+		err = outputPhase0Block(context.Background(), jsonOutput, signedBlock.Phase0)
 	case spec.DataVersionAltair:
-		err = outputAltairBlock(ctx, jsonOutput, sszOutput, block.Altair)
+		err = outputAltairBlock(context.Background(), jsonOutput, sszOutput, signedBlock.Altair)
 	case spec.DataVersionBellatrix:
-		err = outputBellatrixBlock(ctx, jsonOutput, sszOutput, block.Bellatrix)
+		err = outputBellatrixBlock(context.Background(), jsonOutput, sszOutput, signedBlock.Bellatrix)
 	case spec.DataVersionCapella:
-		err = outputCapellaBlock(ctx, jsonOutput, sszOutput, block.Capella)
+		err = outputCapellaBlock(context.Background(), jsonOutput, sszOutput, signedBlock.Capella)
 	case spec.DataVersionDeneb:
-		var blobSidecarsResponse *api.Response[[]*deneb.BlobSidecar]
-		blobSidecarsResponse, err = results.eth2Client.(eth2client.BlobSidecarsProvider).BlobSidecars(ctx, &api.BlobSidecarsOpts{
-			Block: blockID,
-		})
-		if err == nil {
-			err = outputDenebBlock(context.Background(), jsonOutput, sszOutput, block.Deneb, blobSidecarsResponse.Data)
-		}
+		err = outputDenebBlock(context.Background(), jsonOutput, sszOutput, signedBlock.Deneb)
 	default:
 		err = errors.New("unknown block version")
 	}
@@ -290,12 +245,7 @@ func outputCapellaBlock(ctx context.Context, jsonOutput bool, sszOutput bool, si
 	return nil
 }
 
-func outputDenebBlock(ctx context.Context,
-	jsonOutput bool,
-	sszOutput bool,
-	signedBlock *deneb.SignedBeaconBlock,
-	blobs []*deneb.BlobSidecar,
-) error {
+func outputDenebBlock(ctx context.Context, jsonOutput bool, sszOutput bool, signedBlock *deneb.SignedBeaconBlock) error {
 	switch {
 	case jsonOutput:
 		data, err := json.Marshal(signedBlock)
@@ -310,7 +260,7 @@ func outputDenebBlock(ctx context.Context,
 		}
 		fmt.Printf("%x\n", data)
 	default:
-		data, err := outputDenebBlockText(ctx, results, signedBlock, blobs)
+		data, err := outputDenebBlockText(ctx, results, signedBlock)
 		if err != nil {
 			return errors.Wrap(err, "failed to generate text")
 		}
@@ -318,41 +268,3 @@ func outputDenebBlock(ctx context.Context,
 	}
 	return nil
 }
-
-func timeToBlockID(ctx context.Context, eth2Client eth2client.Service, input string) (string, error) {
-	var timestamp time.Time
-
-	switch {
-	case strings.HasPrefix(input, "0x"):
-		// Hex string.
-		hexTime, err := strconv.ParseInt(strings.TrimPrefix(input, "0x"), 16, 64)
-		if err != nil {
-			return "", errors.Wrap(err, "failed to parse block time as hex string")
-		}
-		timestamp = time.Unix(hexTime, 0)
-	case !strings.Contains(input, ":"):
-		// No colon, assume decimal string.
-		decTime, err := strconv.ParseInt(input, 10, 64)
-		if err != nil {
-			return "", errors.Wrap(err, "failed to parse block time as decimal string")
-		}
-		timestamp = time.Unix(decTime, 0)
-	default:
-		dateTime, err := time.Parse("2006-01-02T15:04:05", input)
-		if err != nil {
-			return "", errors.Wrap(err, "failed to parse block time as datetime")
-		}
-		timestamp = dateTime
-	}
-
-	// Assume timestamp.
-	chainTime, err := standardchaintime.New(ctx,
-		standardchaintime.WithSpecProvider(eth2Client.(eth2client.SpecProvider)),
-		standardchaintime.WithGenesisProvider(eth2Client.(eth2client.GenesisProvider)),
-	)
-	if err != nil {
-		return "", errors.Wrap(err, "failed to set up chaintime service")
-	}
-
-	return fmt.Sprintf("%d", chainTime.TimestampToSlot(timestamp)), nil
-}

cmd/block/info/run.go

@@ -1,4 +1,4 @@
-// Copyright © 2019 - 2024 Weald Technology Trading.
+// Copyright © 2019, 2020 Weald Technology Trading
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -15,8 +15,8 @@ package blockinfo
 
 import (
 	"context"
-	"errors"
 
+	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -26,7 +26,7 @@ func Run(cmd *cobra.Command) (string, error) {
 	ctx := context.Background()
 	dataIn, err := input(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to set up command"), err)
+		return "", errors.Wrap(err, "failed to obtain input")
 	}
 
 	// Further errors do not need a usage report.
@@ -34,12 +34,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	dataOut, err := process(ctx, dataIn)
 	if err != nil {
-		switch {
-		case errors.Is(err, context.DeadlineExceeded):
-			return "", errors.New("operation timed out; try increasing with --timeout option")
-		default:
-			return "", errors.Join(errors.New("failed to process"), err)
-		}
+		return "", errors.Wrap(err, "failed to process")
 	}
 
 	if viper.GetBool("quiet") {
@@ -48,7 +43,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	results, err := output(ctx, dataOut)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to obtain output"), err)
+		return "", errors.Wrap(err, "failed to obtain output")
 	}
 
 	return results, nil

cmd/blockanalyze.go

@@ -29,7 +29,7 @@ var blockAnalyzeCmd = &cobra.Command{
     ethdo block analyze --blockid=12345
 
 In quiet mode this will return 0 if the block information is present and not skipped, otherwise 1.`,
-	RunE: func(cmd *cobra.Command, _ []string) error {
+	RunE: func(cmd *cobra.Command, args []string) error {
 		res, err := blockanalyze.Run(cmd)
 		if err != nil {
 			return err

cmd/blockinfo.go

@@ -29,7 +29,7 @@ var blockInfoCmd = &cobra.Command{
     ethdo block info --blockid=12345
 
 In quiet mode this will return 0 if the block information is present and not skipped, otherwise 1.`,
-	RunE: func(cmd *cobra.Command, _ []string) error {
+	RunE: func(cmd *cobra.Command, args []string) error {
 		res, err := blockinfo.Run(cmd)
 		if err != nil {
 			return err
@@ -48,7 +48,6 @@ func init() {
 	blockCmd.AddCommand(blockInfoCmd)
 	blockFlags(blockInfoCmd)
 	blockInfoCmd.Flags().String("blockid", "head", "the ID of the block to fetch")
-	blockInfoCmd.Flags().String("block-time", "", "the time of the block to fetch (format YYYY-MM-DDTHH:MM:SS, or a hex or decimal timestamp")
 	blockInfoCmd.Flags().Bool("stream", false, "continually stream blocks as they arrive")
 	blockInfoCmd.Flags().Bool("ssz", false, "output data in SSZ format")
 }
@@ -57,9 +56,6 @@ func blockInfoBindings(cmd *cobra.Command) {
 	if err := viper.BindPFlag("blockid", cmd.Flags().Lookup("blockid")); err != nil {
 		panic(err)
 	}
-	if err := viper.BindPFlag("block-time", cmd.Flags().Lookup("block-time")); err != nil {
-		panic(err)
-	}
 	if err := viper.BindPFlag("stream", cmd.Flags().Lookup("stream")); err != nil {
 		panic(err)
 	}

cmd/chain/eth1votes/command.go

@@ -50,8 +50,6 @@ type command struct {
 	slot          phase0.Slot
 	epoch         phase0.Epoch
 	period        uint64
-	periodStart   time.Time
-	periodEnd     time.Time
 	incumbent     *phase0.ETH1Data
 	eth1DataVotes []*phase0.ETH1Data
 	votes         map[string]*vote

cmd/chain/eth1votes/output.go

@@ -24,13 +24,11 @@ import (
 )
 
 type jsonOutput struct {
-	Period      uint64           `json:"period"`
-	PeriodStart int64            `json:"period_start"`
-	PeriodEnd   int64            `json:"period_end"`
-	Epoch       phase0.Epoch     `json:"epoch"`
-	Slot        phase0.Slot      `json:"slot"`
-	Incumbent   *phase0.ETH1Data `json:"incumbent"`
-	Votes       []*vote          `json:"votes"`
+	Period    uint64           `json:"period"`
+	Epoch     phase0.Epoch     `json:"epoch"`
+	Slot      phase0.Slot      `json:"slot"`
+	Incumbent *phase0.ETH1Data `json:"incumbent"`
+	Votes     []*vote          `json:"votes"`
 }
 
 func (c *command) output(ctx context.Context) (string, error) {
@@ -59,13 +57,11 @@ func (c *command) outputJSON(_ context.Context) (string, error) {
 	})
 
 	output := &jsonOutput{
-		Period:      c.period,
-		PeriodStart: c.periodStart.Unix(),
-		PeriodEnd:   c.periodEnd.Unix(),
-		Epoch:       c.epoch,
-		Slot:        c.slot,
-		Incumbent:   c.incumbent,
-		Votes:       votes,
+		Period:    c.period,
+		Epoch:     c.epoch,
+		Slot:      c.slot,
+		Incumbent: c.incumbent,
+		Votes:     votes,
 	}
 	data, err := json.Marshal(output)
 	if err != nil {
@@ -82,11 +78,6 @@ func (c *command) outputText(_ context.Context) (string, error) {
 	builder.WriteString(fmt.Sprintf("%d\n", c.period))
 
 	if c.verbose {
-		builder.WriteString("Period start: ")
-		builder.WriteString(fmt.Sprintf("%s\n", c.periodStart))
-		builder.WriteString("Period end: ")
-		builder.WriteString(fmt.Sprintf("%s\n", c.periodEnd))
-
 		builder.WriteString("Incumbent: ")
 		builder.WriteString(fmt.Sprintf("block %#x, deposit count %d\n", c.incumbent.BlockHash, c.incumbent.DepositCount))
 	}

cmd/chain/eth1votes/process.go

@@ -20,7 +20,6 @@ import (
 	"strconv"
 
 	eth2client "github.com/attestantio/go-eth2-client"
-	"github.com/attestantio/go-eth2-client/api"
 	"github.com/attestantio/go-eth2-client/spec"
 	"github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/pkg/errors"
@@ -59,13 +58,10 @@ func (c *command) process(ctx context.Context) error {
 	if fetchSlot > c.chainTime.CurrentSlot() {
 		fetchSlot = c.chainTime.CurrentSlot()
 	}
-	stateResponse, err := c.beaconStateProvider.BeaconState(ctx, &api.BeaconStateOpts{
-		State: fmt.Sprintf("%d", fetchSlot),
-	})
+	state, err := c.beaconStateProvider.BeaconState(ctx, fmt.Sprintf("%d", fetchSlot))
 	if err != nil {
 		return errors.Wrap(err, "failed to obtain state")
 	}
-	state := stateResponse.Data
 	if state == nil {
 		return errors.New("state not returned by beacon node")
 	}
@@ -77,24 +73,25 @@ func (c *command) process(ctx context.Context) error {
 		}
 	}
 
-	c.slot, err = state.Slot()
-	if err != nil {
-		return errors.Wrap(err, "failed to obtain slot")
-	}
 	switch state.Version {
 	case spec.DataVersionPhase0:
+		c.slot = state.Phase0.Slot
 		c.incumbent = state.Phase0.ETH1Data
 		c.eth1DataVotes = state.Phase0.ETH1DataVotes
 	case spec.DataVersionAltair:
+		c.slot = state.Altair.Slot
 		c.incumbent = state.Altair.ETH1Data
 		c.eth1DataVotes = state.Altair.ETH1DataVotes
 	case spec.DataVersionBellatrix:
+		c.slot = state.Bellatrix.Slot
 		c.incumbent = state.Bellatrix.ETH1Data
 		c.eth1DataVotes = state.Bellatrix.ETH1DataVotes
 	case spec.DataVersionCapella:
+		c.slot = state.Capella.Slot
 		c.incumbent = state.Capella.ETH1Data
 		c.eth1DataVotes = state.Capella.ETH1DataVotes
 	case spec.DataVersionDeneb:
+		c.slot = state.Deneb.Slot
 		c.incumbent = state.Deneb.ETH1Data
 		c.eth1DataVotes = state.Deneb.ETH1DataVotes
 	default:
@@ -102,8 +99,6 @@ func (c *command) process(ctx context.Context) error {
 	}
 
 	c.period = uint64(c.epoch) / c.epochsPerEth1VotingPeriod
-	c.periodStart = c.chainTime.StartOfEpoch(phase0.Epoch(c.period * c.epochsPerEth1VotingPeriod))
-	c.periodEnd = c.chainTime.StartOfEpoch(phase0.Epoch((c.period + 1) * c.epochsPerEth1VotingPeriod))
 
 	c.votes = make(map[string]*vote)
 	for _, eth1Vote := range c.eth1DataVotes {
@@ -135,7 +130,7 @@ func (c *command) setup(ctx context.Context) error {
 
 	c.chainTime, err = standardchaintime.New(ctx,
 		standardchaintime.WithSpecProvider(c.eth2Client.(eth2client.SpecProvider)),
-		standardchaintime.WithGenesisProvider(c.eth2Client.(eth2client.GenesisProvider)),
+		standardchaintime.WithGenesisTimeProvider(c.eth2Client.(eth2client.GenesisTimeProvider)),
 	)
 	if err != nil {
 		return errors.Wrap(err, "failed to set up chaintime service")
@@ -151,12 +146,12 @@ func (c *command) setup(ctx context.Context) error {
 		return errors.New("connection does not provide spec information")
 	}
 
-	specResponse, err := specProvider.Spec(ctx, &api.SpecOpts{})
+	spec, err := specProvider.Spec(ctx)
 	if err != nil {
 		return errors.Wrap(err, "failed to obtain spec")
 	}
 
-	tmp, exists := specResponse.Data["SLOTS_PER_EPOCH"]
+	tmp, exists := spec["SLOTS_PER_EPOCH"]
 	if !exists {
 		return errors.New("spec did not contain SLOTS_PER_EPOCH")
 	}
@@ -165,7 +160,7 @@ func (c *command) setup(ctx context.Context) error {
 	if !good {
 		return errors.New("SLOTS_PER_EPOCH value invalid")
 	}
-	tmp, exists = specResponse.Data["EPOCHS_PER_ETH1_VOTING_PERIOD"]
+	tmp, exists = spec["EPOCHS_PER_ETH1_VOTING_PERIOD"]
 	if !exists {
 		return errors.New("spec did not contain EPOCHS_PER_ETH1_VOTING_PERIOD")
 	}

cmd/chain/eth1votes/run.go

@@ -1,4 +1,4 @@
-// Copyright © 2022, 2024 Weald Technology Trading.
+// Copyright © 2022 Weald Technology Trading.
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -15,8 +15,8 @@ package chaineth1votes
 
 import (
 	"context"
-	"errors"
 
+	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -27,19 +27,14 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	c, err := newCommand(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to set up command"), err)
+		return "", errors.Wrap(err, "failed to set up command")
 	}
 
 	// Further errors do not need a usage report.
 	cmd.SilenceUsage = true
 
 	if err := c.process(ctx); err != nil {
-		switch {
-		case errors.Is(err, context.DeadlineExceeded):
-			return "", errors.New("operation timed out; try increasing with --timeout option")
-		default:
-			return "", errors.Join(errors.New("failed to process"), err)
-		}
+		return "", errors.Wrap(err, "failed to process")
 	}
 
 	if viper.GetBool("quiet") {
@@ -48,7 +43,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	results, err := c.output(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to obtain output"), err)
+		return "", errors.Wrap(err, "failed to obtain output")
 	}
 
 	return results, nil

cmd/chain/queues/process.go

@@ -18,7 +18,6 @@ import (
 	"fmt"
 
 	eth2client "github.com/attestantio/go-eth2-client"
-	"github.com/attestantio/go-eth2-client/api"
 	"github.com/pkg/errors"
 	standardchaintime "github.com/wealdtech/ethdo/services/chaintime/standard"
 	"github.com/wealdtech/ethdo/util"
@@ -35,14 +34,12 @@ func (c *command) process(ctx context.Context) error {
 		return err
 	}
 
-	response, err := c.validatorsProvider.Validators(ctx, &api.ValidatorsOpts{
-		State: fmt.Sprintf("%d", c.chainTime.FirstSlotOfEpoch(epoch)),
-	})
+	validators, err := c.validatorsProvider.Validators(ctx, fmt.Sprintf("%d", c.chainTime.FirstSlotOfEpoch(epoch)), nil)
 	if err != nil {
 		return errors.Wrap(err, "failed to obtain validators")
 	}
 
-	for _, validator := range response.Data {
+	for _, validator := range validators {
 		if validator.Validator == nil {
 			continue
 		}
@@ -73,7 +70,7 @@ func (c *command) setup(ctx context.Context) error {
 
 	c.chainTime, err = standardchaintime.New(ctx,
 		standardchaintime.WithSpecProvider(c.eth2Client.(eth2client.SpecProvider)),
-		standardchaintime.WithGenesisProvider(c.eth2Client.(eth2client.GenesisProvider)),
+		standardchaintime.WithGenesisTimeProvider(c.eth2Client.(eth2client.GenesisTimeProvider)),
 	)
 	if err != nil {
 		return errors.Wrap(err, "failed to set up chaintime service")

cmd/chain/queues/run.go

@@ -1,4 +1,4 @@
-// Copyright © 2022, 2024 Weald Technology Trading.
+// Copyright © 2022 Weald Technology Trading.
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -15,8 +15,8 @@ package chainqueues
 
 import (
 	"context"
-	"errors"
 
+	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -27,19 +27,14 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	c, err := newCommand(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to set up command"), err)
+		return "", errors.Wrap(err, "failed to set up command")
 	}
 
 	// Further errors do not need a usage report.
 	cmd.SilenceUsage = true
 
 	if err := c.process(ctx); err != nil {
-		switch {
-		case errors.Is(err, context.DeadlineExceeded):
-			return "", errors.New("operation timed out; try increasing with --timeout option")
-		default:
-			return "", errors.Join(errors.New("failed to process"), err)
-		}
+		return "", errors.Wrap(err, "failed to process")
 	}
 
 	if viper.GetBool("quiet") {
@@ -48,7 +43,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	results, err := c.output(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to obtain output"), err)
+		return "", errors.Wrap(err, "failed to obtain output")
 	}
 
 	return results, nil

cmd/chain/time/output.go

@@ -16,7 +16,6 @@ package chaintime
 import (
 	"context"
 	"fmt"
-	"strconv"
 	"strings"
 	"time"
 
@@ -60,14 +59,14 @@ func output(_ context.Context, data *dataOut) (string, error) {
 	builder.WriteString(data.epochStart.Format("2006-01-02 15:04:05"))
 	if data.verbose {
 		builder.WriteString(" (")
-		builder.WriteString(strconv.FormatInt(data.epochStart.Unix(), 10))
+		builder.WriteString(fmt.Sprintf("%d", data.epochStart.Unix()))
 		builder.WriteString(")")
 	}
 	builder.WriteString("\n  Epoch end ")
 	builder.WriteString(data.epochEnd.Format("2006-01-02 15:04:05"))
 	if data.verbose {
 		builder.WriteString(" (")
-		builder.WriteString(strconv.FormatInt(data.epochEnd.Unix(), 10))
+		builder.WriteString(fmt.Sprintf("%d", data.epochEnd.Unix()))
 		builder.WriteString(")")
 	}
 
@@ -77,27 +76,27 @@ func output(_ context.Context, data *dataOut) (string, error) {
 	builder.WriteString(data.slotStart.Format("2006-01-02 15:04:05"))
 	if data.verbose {
 		builder.WriteString(" (")
-		builder.WriteString(strconv.FormatInt(data.slotStart.Unix(), 10))
+		builder.WriteString(fmt.Sprintf("%d", data.slotStart.Unix()))
 		builder.WriteString(")")
 	}
 	builder.WriteString("\n  Slot end ")
 	builder.WriteString(data.slotEnd.Format("2006-01-02 15:04:05"))
 	if data.verbose {
 		builder.WriteString(" (")
-		builder.WriteString(strconv.FormatInt(data.slotEnd.Unix(), 10))
+		builder.WriteString(fmt.Sprintf("%d", data.slotEnd.Unix()))
 		builder.WriteString(")")
 	}
 
 	if data.hasSyncCommittees {
 		builder.WriteString("\nSync committee period ")
-		builder.WriteString(strconv.FormatUint(data.syncCommitteePeriod, 10))
+		builder.WriteString(fmt.Sprintf("%d", data.syncCommitteePeriod))
 		builder.WriteString("\n  Sync committee period start ")
 		builder.WriteString(data.syncCommitteePeriodStart.Format("2006-01-02 15:04:05"))
 		builder.WriteString(" (epoch ")
 		builder.WriteString(fmt.Sprintf("%d", data.syncCommitteePeriodEpochStart))
 		if data.verbose {
 			builder.WriteString(", ")
-			builder.WriteString(strconv.FormatInt(data.syncCommitteePeriodStart.Unix(), 10))
+			builder.WriteString(fmt.Sprintf("%d", data.syncCommitteePeriodStart.Unix()))
 		}
 		builder.WriteString(")\n  Sync committee period end ")
 		builder.WriteString(data.syncCommitteePeriodEnd.Format("2006-01-02 15:04:05"))
@@ -105,7 +104,7 @@ func output(_ context.Context, data *dataOut) (string, error) {
 		builder.WriteString(fmt.Sprintf("%d", data.syncCommitteePeriodEpochEnd))
 		if data.verbose {
 			builder.WriteString(", ")
-			builder.WriteString(strconv.FormatInt(data.syncCommitteePeriodEnd.Unix(), 10))
+			builder.WriteString(fmt.Sprintf("%d", data.syncCommitteePeriodEnd.Unix()))
 		}
 		builder.WriteString(")")
 	}

cmd/chain/time/process.go

@@ -42,7 +42,7 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 
 	chainTime, err := standardchaintime.New(ctx,
 		standardchaintime.WithSpecProvider(eth2Client.(eth2client.SpecProvider)),
-		standardchaintime.WithGenesisProvider(eth2Client.(eth2client.GenesisProvider)),
+		standardchaintime.WithGenesisTimeProvider(eth2Client.(eth2client.GenesisTimeProvider)),
 	)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to set up chaintime service")

cmd/chain/time/run.go

@@ -1,4 +1,4 @@
-// Copyright © 2021, 2024 Weald Technology Trading.
+// Copyright © 2021 Weald Technology Trading
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -15,8 +15,8 @@ package chaintime
 
 import (
 	"context"
-	"errors"
 
+	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -26,7 +26,7 @@ func Run(cmd *cobra.Command) (string, error) {
 	ctx := context.Background()
 	dataIn, err := input(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to set up command"), err)
+		return "", errors.Wrap(err, "failed to obtain input")
 	}
 
 	// Further errors do not need a usage report.
@@ -34,12 +34,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	dataOut, err := process(ctx, dataIn)
 	if err != nil {
-		switch {
-		case errors.Is(err, context.DeadlineExceeded):
-			return "", errors.New("operation timed out; try increasing with --timeout option")
-		default:
-			return "", errors.Join(errors.New("failed to process"), err)
-		}
+		return "", errors.Wrap(err, "failed to process")
 	}
 
 	if viper.GetBool("quiet") {
@@ -48,7 +43,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	results, err := output(ctx, dataOut)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to obtain output"), err)
+		return "", errors.Wrap(err, "failed to obtain output")
 	}
 
 	return results, nil

cmd/chain/verify/signedcontributionandproof/process.go

@@ -22,7 +22,6 @@ import (
 	"os"
 
 	eth2client "github.com/attestantio/go-eth2-client"
-	"github.com/attestantio/go-eth2-client/api"
 	"github.com/attestantio/go-eth2-client/spec/altair"
 	"github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/pkg/errors"
@@ -104,32 +103,29 @@ func (c *command) setup(ctx context.Context) error {
 	}
 
 	stateID := fmt.Sprintf("%d", c.item.Message.Contribution.Slot)
-	response, err := c.validatorsProvider.Validators(ctx, &api.ValidatorsOpts{
-		State:   stateID,
-		Indices: []phase0.ValidatorIndex{c.item.Message.AggregatorIndex},
-	})
+	validators, err := c.validatorsProvider.Validators(ctx,
+		stateID,
+		[]phase0.ValidatorIndex{c.item.Message.AggregatorIndex},
+	)
 	if err != nil {
 		return errors.Wrap(err, "failed to obtain validator information")
 	}
 
-	if len(response.Data) == 0 || response.Data[c.item.Message.AggregatorIndex] == nil {
+	if len(validators) == 0 || validators[c.item.Message.AggregatorIndex] == nil {
 		return nil
 	}
 	c.validatorKnown = true
-	c.validator = response.Data[c.item.Message.AggregatorIndex]
+	c.validator = validators[c.item.Message.AggregatorIndex]
 
 	// Obtain the sync committee
 	syncCommitteesProvider, isProvider := c.eth2Client.(eth2client.SyncCommitteesProvider)
 	if !isProvider {
 		return errors.New("connection does not provide sync committee information")
 	}
-	syncCommitteeResponse, err := syncCommitteesProvider.SyncCommittee(ctx, &api.SyncCommitteeOpts{
-		State: stateID,
-	})
+	c.syncCommittee, err = syncCommitteesProvider.SyncCommittee(ctx, stateID)
 	if err != nil {
 		return errors.Wrap(err, "failed to obtain sync committee information")
 	}
-	c.syncCommittee = syncCommitteeResponse.Data
 
 	return nil
 }
@@ -141,11 +137,11 @@ func (c *command) isAggregator(ctx context.Context) (bool, error) {
 	if !isProvider {
 		return false, errors.New("connection does not provide spec information")
 	}
-	specResponse, err := specProvider.Spec(ctx, &api.SpecOpts{})
+	var err error
+	c.spec, err = specProvider.Spec(ctx)
 	if err != nil {
 		return false, errors.Wrap(err, "failed to obtain spec information")
 	}
-	c.spec = specResponse.Data
 
 	tmp, exists := c.spec["SYNC_COMMITTEE_SIZE"]
 	if !exists {
@@ -230,19 +226,16 @@ func (c *command) confirmContributionSignature(ctx context.Context) error {
 		fmt.Fprintf(os.Stderr, "Contribution validator indices: %v (%d)\n", includedIndices, len(includedIndices))
 	}
 
-	response, err := c.validatorsProvider.Validators(ctx, &api.ValidatorsOpts{
-		State:   "head",
-		Indices: includedIndices,
-	})
+	includedValidators, err := c.validatorsProvider.Validators(ctx, "head", includedIndices)
 	if err != nil {
 		return errors.Wrap(err, "failed to obtain subcommittee validators")
 	}
-	if len(response.Data) == 0 {
+	if len(includedValidators) == 0 {
 		return errors.New("obtained empty subcommittee validator list")
 	}
 
 	var aggregatePubKey *e2types.BLSPublicKey
-	for _, v := range response.Data {
+	for _, v := range includedValidators {
 		pubKeyBytes := make([]byte, 48)
 		copy(pubKeyBytes, v.Validator.PublicKey[:])
 		pubKey, err := e2types.BLSPublicKeyFromBytes(pubKeyBytes)

cmd/chain/verify/signedcontributionandproof/run.go

@@ -1,4 +1,4 @@
-// Copyright © 2021, 2024 Weald Technology Trading.
+// Copyright © 2021 Weald Technology Trading.
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -15,8 +15,8 @@ package chainverifysignedcontributionandproof
 
 import (
 	"context"
-	"errors"
 
+	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -27,19 +27,14 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	c, err := newCommand(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to set up command"), err)
+		return "", errors.Wrap(err, "failed to set up command")
 	}
 
 	// Further errors do not need a usage report.
 	cmd.SilenceUsage = true
 
 	if err := c.process(ctx); err != nil {
-		switch {
-		case errors.Is(err, context.DeadlineExceeded):
-			return "", errors.New("operation timed out; try increasing with --timeout option")
-		default:
-			return "", errors.Join(errors.New("failed to process"), err)
-		}
+		return "", errors.Wrap(err, "failed to process")
 	}
 
 	if viper.GetBool("quiet") {
@@ -48,7 +43,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	results, err := c.output(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to obtain output"), err)
+		return "", errors.Wrap(err, "failed to obtain output")
 	}
 
 	return results, nil

cmd/chaineth1votes.go

@@ -31,7 +31,7 @@ var chainEth1VotesCmd = &cobra.Command{
 Note that this will fetch the votes made in blocks up to the end of the provided epoch.
 
 In quiet mode this will return 0 if there is a majority for the votes, otherwise 1.`,
-	RunE: func(cmd *cobra.Command, _ []string) error {
+	RunE: func(cmd *cobra.Command, args []string) error {
 		res, err := chaineth1votes.Run(cmd)
 		if err != nil {
 			return err

cmd/chaininfo.go

@@ -1,4 +1,4 @@
-// Copyright © 2020 - 2024 Weald Technology Trading
+// Copyright © 2020, 2022 Weald Technology Trading
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -20,8 +20,6 @@ import (
 	"time"
 
 	eth2client "github.com/attestantio/go-eth2-client"
-	"github.com/attestantio/go-eth2-client/api"
-	"github.com/attestantio/go-eth2-client/spec/bellatrix"
 	spec "github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
@@ -36,7 +34,7 @@ var chainInfoCmd = &cobra.Command{
     ethdo chain info
 
 In quiet mode this will return 0 if the chain information can be obtained, otherwise 1.`,
-	Run: func(_ *cobra.Command, _ []string) {
+	Run: func(cmd *cobra.Command, args []string) {
 		ctx := context.Background()
 
 		eth2Client, err := util.ConnectToBeaconNode(ctx, &util.ConnectOpts{
@@ -47,33 +45,32 @@ In quiet mode this will return 0 if the chain information can be obtained, other
 		})
 		errCheck(err, "Failed to connect to Ethereum 2 beacon node")
 
-		specResponse, err := eth2Client.(eth2client.SpecProvider).Spec(ctx, &api.SpecOpts{})
+		config, err := eth2Client.(eth2client.SpecProvider).Spec(ctx)
 		errCheck(err, "Failed to obtain beacon chain specification")
 
-		genesisResponse, err := eth2Client.(eth2client.GenesisProvider).Genesis(ctx, &api.GenesisOpts{})
+		genesis, err := eth2Client.(eth2client.GenesisProvider).Genesis(ctx)
 		errCheck(err, "Failed to obtain beacon chain genesis")
 
-		forkResponse, err := eth2Client.(eth2client.ForkProvider).Fork(ctx, &api.ForkOpts{State: "head"})
+		fork, err := eth2Client.(eth2client.ForkProvider).Fork(ctx, "head")
 		errCheck(err, "Failed to obtain current fork")
 
 		if viper.GetBool("quiet") {
 			os.Exit(_exitSuccess)
 		}
 
-		if genesisResponse.Data.GenesisTime.Unix() == 0 {
+		if genesis.GenesisTime.Unix() == 0 {
 			fmt.Println("Genesis time: undefined")
 		} else {
-			fmt.Printf("Genesis time: %s\n", genesisResponse.Data.GenesisTime.Format(time.UnixDate))
-			outputIf(viper.GetBool("verbose"), fmt.Sprintf("Genesis timestamp: %v", genesisResponse.Data.GenesisTime.Unix()))
+			fmt.Printf("Genesis time: %s\n", genesis.GenesisTime.Format(time.UnixDate))
+			outputIf(viper.GetBool("verbose"), fmt.Sprintf("Genesis timestamp: %v", genesis.GenesisTime.Unix()))
 		}
-
-		fmt.Printf("Genesis validators root: %#x\n", genesisResponse.Data.GenesisValidatorsRoot)
-		fmt.Printf("Genesis fork version: %#x\n", specResponse.Data["GENESIS_FORK_VERSION"].(spec.Version))
-		fmt.Printf("Current fork version: %#x\n", forkResponse.Data.CurrentVersion)
+		fmt.Printf("Genesis validators root: %#x\n", genesis.GenesisValidatorsRoot)
+		fmt.Printf("Genesis fork version: %#x\n", config["GENESIS_FORK_VERSION"].(spec.Version))
+		fmt.Printf("Current fork version: %#x\n", fork.CurrentVersion)
 		if viper.GetBool("verbose") {
 			forkData := &spec.ForkData{
-				CurrentVersion:        forkResponse.Data.CurrentVersion,
-				GenesisValidatorsRoot: genesisResponse.Data.GenesisValidatorsRoot,
+				CurrentVersion:        fork.CurrentVersion,
+				GenesisValidatorsRoot: genesis.GenesisValidatorsRoot,
 			}
 			forkDataRoot, err := forkData.HashTreeRoot()
 			if err == nil {
@@ -82,12 +79,8 @@ In quiet mode this will return 0 if the chain information can be obtained, other
 				fmt.Printf("Fork digest: %#x\n", forkDigest)
 			}
 		}
-		fmt.Printf("Seconds per slot: %d\n", int(specResponse.Data["SECONDS_PER_SLOT"].(time.Duration).Seconds()))
-		fmt.Printf("Slots per epoch: %d\n", specResponse.Data["SLOTS_PER_EPOCH"].(uint64))
-
-		depositContractAddress := bellatrix.ExecutionAddress{}
-		copy(depositContractAddress[:], specResponse.Data["DEPOSIT_CONTRACT_ADDRESS"].([]byte))
-		fmt.Printf("Deposit contract address: %s\n", depositContractAddress.String())
+		fmt.Printf("Seconds per slot: %d\n", int(config["SECONDS_PER_SLOT"].(time.Duration).Seconds()))
+		fmt.Printf("Slots per epoch: %d\n", config["SLOTS_PER_EPOCH"].(uint64))
 
 		os.Exit(_exitSuccess)
 	},

cmd/chainqueues.go

@@ -29,7 +29,7 @@ var chainQueuesCmd = &cobra.Command{
     ethdo chain queues
 
 In quiet mode this will return 0 if the entry and exit queues are 0, otherwise 1.`,
-	RunE: func(cmd *cobra.Command, _ []string) error {
+	RunE: func(cmd *cobra.Command, args []string) error {
 		res, err := chainqueues.Run(cmd)
 		if err != nil {
 			return err

cmd/chainspec.go

@@ -18,11 +18,9 @@ import (
 	"encoding/json"
 	"fmt"
 	"sort"
-	"strconv"
 	"time"
 
 	eth2client "github.com/attestantio/go-eth2-client"
-	"github.com/attestantio/go-eth2-client/api"
 	"github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
@@ -37,7 +35,7 @@ var chainSpecCmd = &cobra.Command{
     ethdo chain spec
 
 In quiet mode this will return 0 if the chain specification can be obtained, otherwise 1.`,
-	Run: func(_ *cobra.Command, _ []string) {
+	Run: func(cmd *cobra.Command, args []string) {
 		ctx := context.Background()
 
 		eth2Client, err := util.ConnectToBeaconNode(ctx, &util.ConnectOpts{
@@ -48,7 +46,7 @@ In quiet mode this will return 0 if the chain specification can be obtained, oth
 		})
 		errCheck(err, "Failed to connect to Ethereum consensus node")
 
-		specResponse, err := eth2Client.(eth2client.SpecProvider).Spec(ctx, &api.SpecOpts{})
+		spec, err := eth2Client.(eth2client.SpecProvider).Spec(ctx)
 		errCheck(err, "Failed to obtain chain specification")
 
 		if viper.GetBool("quiet") {
@@ -56,35 +54,35 @@ In quiet mode this will return 0 if the chain specification can be obtained, oth
 		}
 
 		// Tweak the spec for output.
-		for k, v := range specResponse.Data {
+		for k, v := range spec {
 			switch t := v.(type) {
 			case phase0.Version:
-				specResponse.Data[k] = fmt.Sprintf("%#x", t)
+				spec[k] = fmt.Sprintf("%#x", t)
 			case phase0.DomainType:
-				specResponse.Data[k] = fmt.Sprintf("%#x", t)
+				spec[k] = fmt.Sprintf("%#x", t)
 			case time.Time:
-				specResponse.Data[k] = strconv.FormatInt(t.Unix(), 10)
+				spec[k] = fmt.Sprintf("%d", t.Unix())
 			case time.Duration:
-				specResponse.Data[k] = strconv.FormatUint(uint64(t.Seconds()), 10)
+				spec[k] = fmt.Sprintf("%d", uint64(t.Seconds()))
 			case []byte:
-				specResponse.Data[k] = fmt.Sprintf("%#x", t)
+				spec[k] = fmt.Sprintf("%#x", t)
 			case uint64:
-				specResponse.Data[k] = strconv.FormatUint(t, 10)
+				spec[k] = fmt.Sprintf("%d", t)
 			}
 		}
 
 		if viper.GetBool("json") {
-			data, err := json.Marshal(specResponse.Data)
+			data, err := json.Marshal(spec)
 			errCheck(err, "Failed to marshal JSON")
 			fmt.Printf("%s\n", string(data))
 		} else {
-			keys := make([]string, 0, len(specResponse.Data))
-			for k := range specResponse.Data {
+			keys := make([]string, 0, len(spec))
+			for k := range spec {
 				keys = append(keys, k)
 			}
 			sort.Strings(keys)
 			for _, key := range keys {
-				fmt.Printf("%s: %v\n", key, specResponse.Data[key])
+				fmt.Printf("%s: %v\n", key, spec[key])
 			}
 		}
 	},

cmd/chainstatus.go

@@ -17,12 +17,10 @@ import (
 	"context"
 	"fmt"
 	"os"
-	"strconv"
 	"strings"
 	"time"
 
 	eth2client "github.com/attestantio/go-eth2-client"
-	"github.com/attestantio/go-eth2-client/api"
 	apiv1 "github.com/attestantio/go-eth2-client/api/v1"
 	"github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/spf13/cobra"
@@ -40,7 +38,7 @@ var chainStatusCmd = &cobra.Command{
     ethdo chain status
 
 In quiet mode this will return 0 if the chain status can be obtained, otherwise 1.`,
-	Run: func(_ *cobra.Command, _ []string) {
+	Run: func(cmd *cobra.Command, args []string) {
 		ctx := context.Background()
 
 		eth2Client, err := util.ConnectToBeaconNode(ctx, &util.ConnectOpts{
@@ -52,18 +50,15 @@ In quiet mode this will return 0 if the chain status can be obtained, otherwise
 		errCheck(err, "Failed to connect to Ethereum 2 beacon node")
 
 		chainTime, err := standardchaintime.New(ctx,
-			standardchaintime.WithGenesisProvider(eth2Client.(eth2client.GenesisProvider)),
+			standardchaintime.WithGenesisTimeProvider(eth2Client.(eth2client.GenesisTimeProvider)),
 			standardchaintime.WithSpecProvider(eth2Client.(eth2client.SpecProvider)),
 		)
 		errCheck(err, "Failed to configure chaintime service")
 
 		finalityProvider, isProvider := eth2Client.(eth2client.FinalityProvider)
 		assert(isProvider, "beacon node does not provide finality; cannot report on chain status")
-		finalityResponse, err := finalityProvider.Finality(ctx, &api.FinalityOpts{
-			State: "head",
-		})
+		finality, err := finalityProvider.Finality(ctx, "head")
 		errCheck(err, "Failed to obtain finality information")
-		finality := finalityResponse.Data
 
 		slot := chainTime.CurrentSlot()
 
@@ -131,13 +126,13 @@ In quiet mode this will return 0 if the chain status can be obtained, otherwise
 		if viper.GetBool("verbose") {
 			validatorsProvider, isProvider := eth2Client.(eth2client.ValidatorsProvider)
 			if isProvider {
-				validatorsResponse, err := validatorsProvider.Validators(ctx, &api.ValidatorsOpts{State: "head"})
+				validators, err := validatorsProvider.Validators(ctx, "head", nil)
 				errCheck(err, "Failed to obtain validators information")
 				// Stats of inteest.
 				totalBalance := phase0.Gwei(0)
 				activeEffectiveBalance := phase0.Gwei(0)
 				validatorCount := make(map[apiv1.ValidatorState]int)
-				for _, validator := range validatorsResponse.Data {
+				for _, validator := range validators {
 					validatorCount[validator.Status]++
 					totalBalance += validator.Balance
 					if validator.Status.IsActive() {
@@ -167,7 +162,7 @@ In quiet mode this will return 0 if the chain status can be obtained, otherwise
 			nextPeriodTimestamp := chainTime.StartOfEpoch(nextPeriodStartEpoch)
 
 			res.WriteString("Sync committee period: ")
-			res.WriteString(strconv.FormatUint(period, 10))
+			res.WriteString(fmt.Sprintf("%d", period))
 			res.WriteString("\n")
 
 			if viper.GetBool("verbose") {

cmd/chaintime.go

@@ -27,7 +27,7 @@ var chainTimeCmd = &cobra.Command{
 	Long: `Obtain info about the chain at a given time.  For example:
 
     ethdo chain time --slot=12345`,
-	RunE: func(cmd *cobra.Command, _ []string) error {
+	RunE: func(cmd *cobra.Command, args []string) error {
 		res, err := chaintime.Run(cmd)
 		if err != nil {
 			return err

cmd/chainverifysignedcontributionandproof.go

@@ -28,7 +28,7 @@ var chainVerifySignedContributionAndProofCmd = &cobra.Command{
     ethdo chain verify signedcontributionandproof --data=... --validator=...
 
 validator can be an account, a public key or an index.`,
-	RunE: func(cmd *cobra.Command, _ []string) error {
+	RunE: func(cmd *cobra.Command, args []string) error {
 		res, err := chainverifysignedcontributionandproof.Run(cmd)
 		if err != nil {
 			return err

cmd/depositverify.go

@@ -16,7 +16,6 @@ package cmd
 import (
 	"bytes"
 	"encoding/hex"
-	"encoding/json"
 	"fmt"
 	"os"
 	"strings"
@@ -50,7 +49,7 @@ var depositVerifyCmd = &cobra.Command{
 The deposit data is compared to the supplied withdrawal account/public key, validator public key, and value to ensure they match.
 
 In quiet mode this will return 0 if the data is verified correctly, otherwise 1.`,
-	Run: func(_ *cobra.Command, _ []string) {
+	Run: func(cmd *cobra.Command, args []string) {
 		assert(depositVerifyData != "", "--data is required")
 		var data []byte
 		var err error
@@ -76,12 +75,6 @@ In quiet mode this will return 0 if the data is verified correctly, otherwise 1.
 
 		deposits, err := util.DepositInfoFromJSON(data)
 		errCheck(err, "Failed to fetch deposit data")
-		if viper.GetBool("debug") {
-			data, err := json.Marshal(deposits)
-			if err == nil {
-				fmt.Fprintf(os.Stderr, "Deposit data is %s\n", string(data))
-			}
-		}
 
 		var withdrawalCredentials []byte
 		if depositVerifyWithdrawalPubKey != "" {
@@ -270,12 +263,9 @@ func verifyDeposit(deposit *util.DepositInfo, withdrawalCredentials []byte, vali
 				return false, nil
 			}
 
-			switch {
-			case len(deposit.DepositMessageRoot) != 32:
+			if len(deposit.DepositMessageRoot) != 32 {
 				outputIf(!viper.GetBool("quiet"), "Deposit message root not supplied; not checked")
-			case len(withdrawalCredentials) != 32:
-				outputIf(!viper.GetBool("quiet"), "Withdrawal credentials not available; cannot recreate deposit message")
-			default:
+			} else {
 				// We can also verify the deposit message signature.
 				depositMessage := &phase0.DepositMessage{
 					PublicKey:             pubKey,

cmd/epoch/summary/command.go

@@ -18,7 +18,6 @@ import (
 	"time"
 
 	eth2client "github.com/attestantio/go-eth2-client"
-	"github.com/attestantio/go-eth2-client/spec"
 	"github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/pkg/errors"
 	"github.com/spf13/viper"
@@ -50,9 +49,6 @@ type command struct {
 	beaconCommitteesProvider   eth2client.BeaconCommitteesProvider
 	beaconBlockHeadersProvider eth2client.BeaconBlockHeadersProvider
 
-	// Caches.
-	blocksCache map[string]*spec.VersionedSignedBeaconBlock
-
 	// Results.
 	summary *epochSummary
 }
@@ -71,7 +67,6 @@ type epochSummary struct {
 	TargetCorrectValidators    int                          `json:"target_correct_validators"`
 	TargetTimelyValidators     int                          `json:"target_timely_validators"`
 	NonParticipatingValidators []*nonParticipatingValidator `json:"nonparticipating_validators"`
-	Blobs                      int                          `json:"blobs"`
 }
 
 type epochProposal struct {
@@ -93,11 +88,10 @@ type nonParticipatingValidator struct {
 
 func newCommand(_ context.Context) (*command, error) {
 	c := &command{
-		quiet:       viper.GetBool("quiet"),
-		verbose:     viper.GetBool("verbose"),
-		debug:       viper.GetBool("debug"),
-		summary:     &epochSummary{},
-		blocksCache: make(map[string]*spec.VersionedSignedBeaconBlock),
+		quiet:   viper.GetBool("quiet"),
+		verbose: viper.GetBool("verbose"),
+		debug:   viper.GetBool("debug"),
+		summary: &epochSummary{},
 	}
 
 	// Timeout.

cmd/epoch/summary/process.go

@@ -16,13 +16,12 @@ package epochsummary
 import (
 	"context"
 	"fmt"
-	"net/http"
 	"sort"
 
 	eth2client "github.com/attestantio/go-eth2-client"
-	"github.com/attestantio/go-eth2-client/api"
 	apiv1 "github.com/attestantio/go-eth2-client/api/v1"
 	"github.com/attestantio/go-eth2-client/spec"
+	"github.com/attestantio/go-eth2-client/spec/altair"
 	"github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/pkg/errors"
 	standardchaintime "github.com/wealdtech/ethdo/services/chaintime/standard"
@@ -49,22 +48,19 @@ func (c *command) process(ctx context.Context) error {
 	if err := c.processAttesterDuties(ctx); err != nil {
 		return err
 	}
-	if err := c.processSyncCommitteeDuties(ctx); err != nil {
-		return err
-	}
-	return c.processBlobs(ctx)
+	return c.processSyncCommitteeDuties(ctx)
 }
 
 func (c *command) processProposerDuties(ctx context.Context) error {
-	response, err := c.proposerDutiesProvider.ProposerDuties(ctx, &api.ProposerDutiesOpts{
-		Epoch: c.summary.Epoch,
-	})
+	duties, err := c.proposerDutiesProvider.ProposerDuties(ctx, c.summary.Epoch, nil)
 	if err != nil {
 		return errors.Wrap(err, "failed to obtain proposer duties")
 	}
-
-	for _, duty := range response.Data {
-		block, err := c.fetchBlock(ctx, fmt.Sprintf("%d", duty.Slot))
+	if duties == nil {
+		return errors.New("empty proposer duties")
+	}
+	for _, duty := range duties {
+		block, err := c.blocksProvider.SignedBeaconBlock(ctx, fmt.Sprintf("%d", duty.Slot))
 		if err != nil {
 			return errors.Wrap(err, fmt.Sprintf("failed to obtain block for slot %d", duty.Slot))
 		}
@@ -80,14 +76,12 @@ func (c *command) processProposerDuties(ctx context.Context) error {
 }
 
 func (c *command) activeValidators(ctx context.Context) (map[phase0.ValidatorIndex]*apiv1.Validator, error) {
-	response, err := c.validatorsProvider.Validators(ctx, &api.ValidatorsOpts{
-		State: fmt.Sprintf("%d", c.chainTime.FirstSlotOfEpoch(c.summary.Epoch)),
-	})
+	validators, err := c.validatorsProvider.Validators(ctx, fmt.Sprintf("%d", c.chainTime.FirstSlotOfEpoch(c.summary.Epoch)), nil)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to obtain validators for epoch")
 	}
 	activeValidators := make(map[phase0.ValidatorIndex]*apiv1.Validator)
-	for _, validator := range response.Data {
+	for _, validator := range validators {
 		if validator.Validator.ActivationEpoch <= c.summary.Epoch && validator.Validator.ExitEpoch > c.summary.Epoch {
 			activeValidators[validator.Index] = validator
 		}
@@ -167,7 +161,7 @@ func (c *command) processSlots(ctx context.Context,
 	headersCache := util.NewBeaconBlockHeaderCache(c.beaconBlockHeadersProvider)
 
 	for slot := firstSlot; slot <= lastSlot; slot++ {
-		block, err := c.fetchBlock(ctx, fmt.Sprintf("%d", slot))
+		block, err := c.blocksProvider.SignedBeaconBlock(ctx, fmt.Sprintf("%d", slot))
 		if err != nil {
 			return 0, 0, 0, 0, 0, 0, nil, nil, errors.Wrap(err, fmt.Sprintf("failed to obtain block for slot %d", slot))
 		}
@@ -190,13 +184,11 @@ func (c *command) processSlots(ctx context.Context,
 			}
 			slotCommittees, exists := allCommittees[attestation.Data.Slot]
 			if !exists {
-				response, err := c.beaconCommitteesProvider.BeaconCommittees(ctx, &api.BeaconCommitteesOpts{
-					State: fmt.Sprintf("%d", attestation.Data.Slot),
-				})
+				beaconCommittees, err := c.beaconCommitteesProvider.BeaconCommittees(ctx, fmt.Sprintf("%d", attestation.Data.Slot))
 				if err != nil {
 					return 0, 0, 0, 0, 0, 0, nil, nil, errors.Wrap(err, fmt.Sprintf("failed to obtain committees for slot %d", attestation.Data.Slot))
 				}
-				for _, beaconCommittee := range response.Data {
+				for _, beaconCommittee := range beaconCommittees {
 					if _, exists := allCommittees[beaconCommittee.Slot]; !exists {
 						allCommittees[beaconCommittee.Slot] = make(map[phase0.CommitteeIndex][]phase0.ValidatorIndex)
 					}
@@ -262,13 +254,10 @@ func (c *command) processSyncCommitteeDuties(ctx context.Context) error {
 		return nil
 	}
 
-	committeeResponse, err := c.syncCommitteesProvider.SyncCommittee(ctx, &api.SyncCommitteeOpts{
-		State: fmt.Sprintf("%d", c.summary.FirstSlot),
-	})
+	committee, err := c.syncCommitteesProvider.SyncCommittee(ctx, fmt.Sprintf("%d", c.summary.FirstSlot))
 	if err != nil {
 		return errors.Wrap(err, "failed to obtain sync committee")
 	}
-	committee := committeeResponse.Data
 	if len(committee.Validators) == 0 {
 		return errors.Wrap(err, "empty sync committee")
 	}
@@ -279,7 +268,7 @@ func (c *command) processSyncCommitteeDuties(ctx context.Context) error {
 	}
 
 	for slot := c.summary.FirstSlot; slot <= c.summary.LastSlot; slot++ {
-		block, err := c.fetchBlock(ctx, fmt.Sprintf("%d", slot))
+		block, err := c.blocksProvider.SignedBeaconBlock(ctx, fmt.Sprintf("%d", slot))
 		if err != nil {
 			return errors.Wrap(err, fmt.Sprintf("failed to obtain block for slot %d", slot))
 		}
@@ -287,14 +276,21 @@ func (c *command) processSyncCommitteeDuties(ctx context.Context) error {
 			// If the block is missed we don't count the sync aggregate miss.
 			continue
 		}
-		if block.Version == spec.DataVersionPhase0 {
+		var aggregate *altair.SyncAggregate
+		switch block.Version {
+		case spec.DataVersionPhase0:
 			// No sync committees in this fork.
 			return nil
-		}
-
-		aggregate, err := block.SyncAggregate()
-		if err != nil {
-			return errors.Wrapf(err, "failed to obtain sync aggregate for slot %d", slot)
+		case spec.DataVersionAltair:
+			aggregate = block.Altair.Message.Body.SyncAggregate
+		case spec.DataVersionBellatrix:
+			aggregate = block.Bellatrix.Message.Body.SyncAggregate
+		case spec.DataVersionCapella:
+			aggregate = block.Capella.Message.Body.SyncAggregate
+		case spec.DataVersionDeneb:
+			aggregate = block.Deneb.Message.Body.SyncAggregate
+		default:
+			return fmt.Errorf("unhandled block version %v", block.Version)
 		}
 		for i := uint64(0); i < aggregate.SyncCommitteeBits.Len(); i++ {
 			if !aggregate.SyncCommitteeBits.BitAt(i) {
@@ -342,7 +338,7 @@ func (c *command) setup(ctx context.Context) error {
 
 	c.chainTime, err = standardchaintime.New(ctx,
 		standardchaintime.WithSpecProvider(c.eth2Client.(eth2client.SpecProvider)),
-		standardchaintime.WithGenesisProvider(c.eth2Client.(eth2client.GenesisProvider)),
+		standardchaintime.WithGenesisTimeProvider(c.eth2Client.(eth2client.GenesisTimeProvider)),
 	)
 	if err != nil {
 		return errors.Wrap(err, "failed to set up chaintime service")
@@ -376,52 +372,3 @@ func (c *command) setup(ctx context.Context) error {
 
 	return nil
 }
-
-func (c *command) processBlobs(ctx context.Context) error {
-	for slot := c.summary.FirstSlot; slot <= c.summary.LastSlot; slot++ {
-		block, err := c.fetchBlock(ctx, fmt.Sprintf("%d", slot))
-		if err != nil {
-			return errors.Wrap(err, fmt.Sprintf("failed to obtain block for slot %d", slot))
-		}
-		if block == nil {
-			continue
-		}
-		switch block.Version {
-		case spec.DataVersionPhase0, spec.DataVersionAltair, spec.DataVersionBellatrix, spec.DataVersionCapella:
-			// No blobs in these forks.
-		case spec.DataVersionDeneb:
-			c.summary.Blobs += len(block.Deneb.Message.Body.BlobKZGCommitments)
-		default:
-			return fmt.Errorf("unhandled block version %v", block.Version)
-		}
-	}
-
-	return nil
-}
-
-func (c *command) fetchBlock(ctx context.Context,
-	blockID string,
-) (
-	*spec.VersionedSignedBeaconBlock,
-	error,
-) {
-	block, exists := c.blocksCache[blockID]
-	if !exists {
-		var err error
-		blockResponse, err := c.blocksProvider.SignedBeaconBlock(ctx, &api.SignedBeaconBlockOpts{
-			Block: blockID,
-		})
-		if err != nil {
-			var apiErr *api.Error
-			if errors.As(err, &apiErr) && apiErr.StatusCode == http.StatusNotFound {
-				// No block for this slot, that's okay.
-				return nil, nil
-			}
-
-			return nil, errors.Wrap(err, "failed to fetch block")
-		}
-		block = blockResponse.Data
-		c.blocksCache[blockID] = block
-	}
-	return block, nil
-}

cmd/epoch/summary/run.go

@@ -1,4 +1,4 @@
-// Copyright © 2022, 2024 Weald Technology Trading.
+// Copyright © 2022 Weald Technology Trading.
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -15,8 +15,8 @@ package epochsummary
 
 import (
 	"context"
-	"errors"
 
+	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -27,19 +27,14 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	c, err := newCommand(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to set up command"), err)
+		return "", errors.Wrap(err, "failed to set up command")
 	}
 
 	// Further errors do not need a usage report.
 	cmd.SilenceUsage = true
 
 	if err := c.process(ctx); err != nil {
-		switch {
-		case errors.Is(err, context.DeadlineExceeded):
-			return "", errors.New("operation timed out; try increasing with --timeout option")
-		default:
-			return "", errors.Join(errors.New("failed to process"), err)
-		}
+		return "", errors.Wrap(err, "failed to process")
 	}
 
 	if viper.GetBool("quiet") {
@@ -48,7 +43,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	results, err := c.output(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to obtain output"), err)
+		return "", errors.Wrap(err, "failed to obtain output")
 	}
 
 	return results, nil

cmd/epochsummary.go

@@ -29,7 +29,7 @@ var epochSummaryCmd = &cobra.Command{
     ethdo epoch summary --epoch=12345
 
 In quiet mode this will return 0 if information for the epoch is found, otherwise 1.`,
-	RunE: func(cmd *cobra.Command, _ []string) error {
+	RunE: func(cmd *cobra.Command, args []string) error {
 		res, err := epochsummary.Run(cmd)
 		if err != nil {
 			return err

cmd/exitverify.go

@@ -21,7 +21,6 @@ import (
 	"strings"
 
 	consensusclient "github.com/attestantio/go-eth2-client"
-	"github.com/attestantio/go-eth2-client/api"
 	v1 "github.com/attestantio/go-eth2-client/api/v1"
 	"github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/pkg/errors"
@@ -39,7 +38,7 @@ var exitVerifyCmd = &cobra.Command{
     ethdo exit verify --signed-operation=exitdata.json --validator=primary/current
 
 In quiet mode this will return 0 if the exit is verified correctly, otherwise 1.`,
-	Run: func(_ *cobra.Command, _ []string) {
+	Run: func(cmd *cobra.Command, args []string) {
 		ctx := context.Background()
 
 		assert(viper.GetString("signed-operation") != "", "signed-operation is required")
@@ -68,11 +67,10 @@ In quiet mode this will return 0 if the exit is verified correctly, otherwise 1.
 		opRoot, err := signedOp.Message.HashTreeRoot()
 		errCheck(err, "Failed to obtain exit hash tree root")
 
-		genesisResponse, err := eth2Client.(consensusclient.GenesisProvider).Genesis(ctx, &api.GenesisOpts{})
+		genesis, err := eth2Client.(consensusclient.GenesisProvider).Genesis(ctx)
 		errCheck(err, "Failed to obtain beacon chain genesis")
-		genesis := genesisResponse.Data
 
-		response, err := eth2Client.(consensusclient.ForkProvider).Fork(ctx, &api.ForkOpts{State: "head"})
+		fork, err := eth2Client.(consensusclient.ForkProvider).Fork(ctx, "head")
 		errCheck(err, "Failed to obtain fork information")
 
 		// Check against current and prior fork versions.
@@ -85,14 +83,14 @@ In quiet mode this will return 0 if the exit is verified correctly, otherwise 1.
 
 		// Try with the current fork.
 		domain := phase0.Domain{}
-		currentExitDomain, err := e2types.ComputeDomain(e2types.DomainVoluntaryExit, response.Data.CurrentVersion[:], genesis.GenesisValidatorsRoot[:])
+		currentExitDomain, err := e2types.ComputeDomain(e2types.DomainVoluntaryExit, fork.CurrentVersion[:], genesis.GenesisValidatorsRoot[:])
 		errCheck(err, "Failed to compute domain")
 		copy(domain[:], currentExitDomain)
 		verified, err = util.VerifyRoot(account, opRoot, domain, sig)
 		errCheck(err, "Failed to verify voluntary exit")
 		if !verified {
 			// Try again with the previous fork.
-			previousExitDomain, err := e2types.ComputeDomain(e2types.DomainVoluntaryExit, response.Data.PreviousVersion[:], genesis.GenesisValidatorsRoot[:])
+			previousExitDomain, err := e2types.ComputeDomain(e2types.DomainVoluntaryExit, fork.PreviousVersion[:], genesis.GenesisValidatorsRoot[:])
 			copy(domain[:], previousExitDomain)
 			errCheck(err, "Failed to compute domain")
 			verified, err = util.VerifyRoot(account, opRoot, domain, sig)

cmd/node/events/run.go

@@ -1,4 +1,4 @@
-// Copyright © 2019 - 2024 Weald Technology Trading.
+// Copyright © 2019, 2020 Weald Technology Trading
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -15,8 +15,8 @@ package nodeevents
 
 import (
 	"context"
-	"errors"
 
+	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 )
 
@@ -25,19 +25,14 @@ func Run(cmd *cobra.Command) (string, error) {
 	ctx := context.Background()
 	dataIn, err := input(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to set up command"), err)
+		return "", errors.Wrap(err, "failed to obtain input")
 	}
 
 	// Further errors do not need a usage report.
 	cmd.SilenceUsage = true
 
 	if err := process(ctx, dataIn); err != nil {
-		switch {
-		case errors.Is(err, context.DeadlineExceeded):
-			return "", errors.New("operation timed out; try increasing with --timeout option")
-		default:
-			return "", errors.Join(errors.New("failed to process"), err)
-		}
+		return "", errors.Wrap(err, "failed to process")
 	}
 
 	// Process generates all output.

cmd/nodeevents.go

@@ -27,7 +27,7 @@ var nodeEventsCmd = &cobra.Command{
 	Long: `Report events from a node.  For example:
 
     ethdo node events --events=head,chain_reorg.`,
-	RunE: func(cmd *cobra.Command, _ []string) error {
+	RunE: func(cmd *cobra.Command, args []string) error {
 		res, err := nodeevents.Run(cmd)
 		if err != nil {
 			return err

cmd/nodeinfo.go

@@ -19,7 +19,6 @@ import (
 	"os"
 
 	eth2client "github.com/attestantio/go-eth2-client"
-	"github.com/attestantio/go-eth2-client/api"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 	"github.com/wealdtech/ethdo/util"
@@ -33,7 +32,7 @@ var nodeInfoCmd = &cobra.Command{
     ethdo node info
 
 In quiet mode this will return 0 if the node information can be obtained, otherwise 1.`,
-	Run: func(_ *cobra.Command, _ []string) {
+	Run: func(cmd *cobra.Command, args []string) {
 		ctx := context.Background()
 
 		eth2Client, err := util.ConnectToBeaconNode(ctx, &util.ConnectOpts{
@@ -49,14 +48,14 @@ In quiet mode this will return 0 if the node information can be obtained, otherw
 		}
 
 		if viper.GetBool("verbose") {
-			versionResponse, err := eth2Client.(eth2client.NodeVersionProvider).NodeVersion(ctx, &api.NodeVersionOpts{})
+			version, err := eth2Client.(eth2client.NodeVersionProvider).NodeVersion(ctx)
 			errCheck(err, "Failed to obtain node version")
-			fmt.Printf("Version: %s\n", versionResponse.Data)
+			fmt.Printf("Version: %s\n", version)
 		}
 
-		syncStateResponse, err := eth2Client.(eth2client.NodeSyncingProvider).NodeSyncing(ctx, &api.NodeSyncingOpts{})
+		syncState, err := eth2Client.(eth2client.NodeSyncingProvider).NodeSyncing(ctx)
 		errCheck(err, "failed to obtain node sync state")
-		fmt.Printf("Syncing: %t\n", syncStateResponse.Data.SyncDistance != 0)
+		fmt.Printf("Syncing: %t\n", syncState.SyncDistance != 0)
 
 		os.Exit(_exitSuccess)
 	},

cmd/proposer/duties/command.go

@@ -1,4 +1,4 @@
-// Copyright © 2022, 2023 Weald Technology Trading.
+// Copyright © 2022 Weald Technology Trading.
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -37,7 +37,6 @@ type command struct {
 
 	// Operation.
 	epoch      string
-	slot       string
 	jsonOutput bool
 
 	// Data access.
@@ -56,22 +55,23 @@ type results struct {
 
 func newCommand(_ context.Context) (*command, error) {
 	c := &command{
-		quiet:                    viper.GetBool("quiet"),
-		verbose:                  viper.GetBool("verbose"),
-		debug:                    viper.GetBool("debug"),
-		timeout:                  viper.GetDuration("timeout"),
-		connection:               viper.GetString("connection"),
-		allowInsecureConnections: viper.GetBool("allow-insecure-connections"),
-		epoch:                    viper.GetString("epoch"),
-		slot:                     viper.GetString("slot"),
-		jsonOutput:               viper.GetBool("json"),
-		results:                  &results{},
+		quiet:   viper.GetBool("quiet"),
+		verbose: viper.GetBool("verbose"),
+		debug:   viper.GetBool("debug"),
+		results: &results{},
 	}
 
 	// Timeout.
-	if c.timeout == 0 {
+	if viper.GetDuration("timeout") == 0 {
 		return nil, errors.New("timeout is required")
 	}
+	c.timeout = viper.GetDuration("timeout")
+
+	c.connection = viper.GetString("connection")
+	c.allowInsecureConnections = viper.GetBool("allow-insecure-connections")
+
+	c.epoch = viper.GetString("epoch")
+	c.jsonOutput = viper.GetBool("json")
 
 	return c, nil
 }

cmd/proposer/duties/output.go

@@ -1,4 +1,4 @@
-// Copyright © 2022, 2023 Weald Technology Trading.
+// Copyright © 2022 Weald Technology Trading.
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -43,32 +43,19 @@ func (c *command) outputJSON(_ context.Context) (string, error) {
 func (c *command) outputTxt(_ context.Context) (string, error) {
 	builder := strings.Builder{}
 
-	if len(c.results.Duties) == 1 {
-		// Only have a single slot, just print the validator.
-		duty := c.results.Duties[0]
-		builder.WriteString("Validator ")
+	builder.WriteString("Epoch ")
+	builder.WriteString(fmt.Sprintf("%d:\n", c.results.Epoch))
+
+	for _, duty := range c.results.Duties {
+		builder.WriteString("  Slot ")
+		builder.WriteString(fmt.Sprintf("%d: ", duty.Slot))
+		builder.WriteString("validator ")
 		builder.WriteString(fmt.Sprintf("%d", duty.ValidatorIndex))
 		if c.verbose {
 			builder.WriteString(" (pubkey ")
 			builder.WriteString(fmt.Sprintf("%#x)", duty.PubKey))
 		}
 		builder.WriteString("\n")
-	} else {
-		// Have multiple slots, print per-slot information.
-		builder.WriteString("Epoch ")
-		builder.WriteString(fmt.Sprintf("%d:\n", c.results.Epoch))
-
-		for _, duty := range c.results.Duties {
-			builder.WriteString("  Slot ")
-			builder.WriteString(fmt.Sprintf("%d: ", duty.Slot))
-			builder.WriteString("validator ")
-			builder.WriteString(fmt.Sprintf("%d", duty.ValidatorIndex))
-			if c.verbose {
-				builder.WriteString(" (pubkey ")
-				builder.WriteString(fmt.Sprintf("%#x)", duty.PubKey))
-			}
-			builder.WriteString("\n")
-		}
 	}
 
 	return strings.TrimSuffix(builder.String(), "\n"), nil

cmd/proposer/duties/process.go

@@ -1,4 +1,4 @@
-// Copyright © 2022, 2023 Weald Technology Trading.
+// Copyright © 2022 Weald Technology Trading.
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -17,8 +17,6 @@ import (
 	"context"
 
 	eth2client "github.com/attestantio/go-eth2-client"
-	"github.com/attestantio/go-eth2-client/api"
-	apiv1 "github.com/attestantio/go-eth2-client/api/v1"
 	"github.com/pkg/errors"
 	standardchaintime "github.com/wealdtech/ethdo/services/chaintime/standard"
 	"github.com/wealdtech/ethdo/util"
@@ -26,59 +24,20 @@ import (
 
 func (c *command) process(ctx context.Context) error {
 	// Obtain information we need to process.
-	if err := c.setup(ctx); err != nil {
+	err := c.setup(ctx)
+	if err != nil {
 		return err
 	}
 
-	if c.slot != "" {
-		return c.processSlot(ctx)
-	}
-
-	return c.processEpoch(ctx)
-}
-
-func (c *command) processSlot(ctx context.Context) error {
-	var err error
-	slot, err := util.ParseSlot(ctx, c.chainTime, c.slot)
-	if err != nil {
-		return errors.Wrap(err, "failed to parse slot")
-	}
-
-	c.results.Epoch = c.chainTime.SlotToEpoch(slot)
-
-	response, err := c.proposerDutiesProvider.ProposerDuties(ctx, &api.ProposerDutiesOpts{
-		Epoch: c.results.Epoch,
-	})
-	if err != nil {
-		return errors.Wrap(err, "failed to obtain proposer duties")
-	}
-
-	c.results.Duties = make([]*apiv1.ProposerDuty, 0, 1)
-
-	for _, duty := range response.Data {
-		if duty.Slot == slot {
-			c.results.Duties = append(c.results.Duties, duty)
-			break
-		}
-	}
-
-	return nil
-}
-
-func (c *command) processEpoch(ctx context.Context) error {
-	var err error
 	c.results.Epoch, err = util.ParseEpoch(ctx, c.chainTime, c.epoch)
 	if err != nil {
 		return errors.Wrap(err, "failed to parse epoch")
 	}
 
-	dutiesResponse, err := c.proposerDutiesProvider.ProposerDuties(ctx, &api.ProposerDutiesOpts{
-		Epoch: c.results.Epoch,
-	})
+	c.results.Duties, err = c.proposerDutiesProvider.ProposerDuties(ctx, c.results.Epoch, nil)
 	if err != nil {
 		return errors.Wrap(err, "failed to obtain proposer duties")
 	}
-	c.results.Duties = dutiesResponse.Data
 
 	return nil
 }
@@ -99,7 +58,7 @@ func (c *command) setup(ctx context.Context) error {
 
 	c.chainTime, err = standardchaintime.New(ctx,
 		standardchaintime.WithSpecProvider(c.eth2Client.(eth2client.SpecProvider)),
-		standardchaintime.WithGenesisProvider(c.eth2Client.(eth2client.GenesisProvider)),
+		standardchaintime.WithGenesisTimeProvider(c.eth2Client.(eth2client.GenesisTimeProvider)),
 	)
 	if err != nil {
 		return errors.Wrap(err, "failed to set up chaintime service")

cmd/proposer/duties/run.go

@@ -1,4 +1,4 @@
-// Copyright © 2022, 2024 Weald Technology Trading.
+// Copyright © 2022 Weald Technology Trading.
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -15,8 +15,8 @@ package proposerduties
 
 import (
 	"context"
-	"errors"
 
+	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -27,19 +27,14 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	c, err := newCommand(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to set up command"), err)
+		return "", errors.Wrap(err, "failed to set up command")
 	}
 
 	// Further errors do not need a usage report.
 	cmd.SilenceUsage = true
 
 	if err := c.process(ctx); err != nil {
-		switch {
-		case errors.Is(err, context.DeadlineExceeded):
-			return "", errors.New("operation timed out; try increasing with --timeout option")
-		default:
-			return "", errors.Join(errors.New("failed to process"), err)
-		}
+		return "", errors.Wrap(err, "failed to process")
 	}
 
 	if viper.GetBool("quiet") {
@@ -48,7 +43,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	results, err := c.output(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to obtain output"), err)
+		return "", errors.Wrap(err, "failed to obtain output")
 	}
 
 	return results, nil

cmd/proposerduties.go

@@ -29,7 +29,7 @@ var proposerDutiesCmd = &cobra.Command{
     ethdo proposer duties --epoch=12345
 
 In quiet mode this will return 0 if duties can be obtained, otherwise 1.`,
-	RunE: func(cmd *cobra.Command, _ []string) error {
+	RunE: func(cmd *cobra.Command, args []string) error {
 		res, err := proposerduties.Run(cmd)
 		if err != nil {
 			return err
@@ -48,14 +48,10 @@ func init() {
 	proposerCmd.AddCommand(proposerDutiesCmd)
 	proposerFlags(proposerDutiesCmd)
 	proposerDutiesCmd.Flags().String("epoch", "", "the epoch for which to fetch duties")
-	proposerDutiesCmd.Flags().String("slot", "", "the slot for which to fetch duties")
 }
 
 func proposerDutiesBindings(cmd *cobra.Command) {
 	if err := viper.BindPFlag("epoch", cmd.Flags().Lookup("epoch")); err != nil {
 		panic(err)
 	}
-	if err := viper.BindPFlag("slot", cmd.Flags().Lookup("slot")); err != nil {
-		panic(err)
-	}
 }

cmd/root.go

@@ -76,7 +76,6 @@ var bindings = map[string]func(cmd *cobra.Command){
 	"validator/yield":           validatorYieldBindings,
 	"validator/expectation":     validatorExpectationBindings,
 	"validator/withdrawal":      validatorWithdrawalBindings,
-	"wallet/batch":              walletBatchBindings,
 	"wallet/create":             walletCreateBindings,
 	"wallet/import":             walletImportBindings,
 	"wallet/sharedexport":       walletSharedExportBindings,
@@ -159,7 +158,7 @@ func addPersistentFlags() {
 	if err := viper.BindPFlag("path", RootCmd.PersistentFlags().Lookup("path")); err != nil {
 		panic(err)
 	}
-	RootCmd.PersistentFlags().String("private-key", "", "Private key to provide access to an account or validator")
+	RootCmd.PersistentFlags().String("private-key", "", "Private key to provide access to an account or validaotr")
 	if err := viper.BindPFlag("private-key", RootCmd.PersistentFlags().Lookup("private-key")); err != nil {
 		panic(err)
 	}
@@ -224,7 +223,7 @@ func addPersistentFlags() {
 	if err := viper.BindPFlag("connection", RootCmd.PersistentFlags().Lookup("connection")); err != nil {
 		panic(err)
 	}
-	RootCmd.PersistentFlags().Duration("timeout", 30*time.Second, "the time after which a network request will be considered failed.  Increase this if you are running on an error-prone, high-latency or low-bandwidth connection")
+	RootCmd.PersistentFlags().Duration("timeout", 10*time.Second, "the time after which a network request will be considered failed.  Increase this if you are running on an error-prone, high-latency or low-bandwidth connection")
 	if err := viper.BindPFlag("timeout", RootCmd.PersistentFlags().Lookup("timeout")); err != nil {
 		panic(err)
 	}

cmd/signatureaggregate.go

@@ -40,7 +40,7 @@ var signatureAggregateCmd = &cobra.Command{
 Signatures are specified as "signature" for simple aggregation, and as "id:signature" for threshold aggregation.
 
 In quiet mode this will return 0 if the signatures can be aggregated, otherwise 1.`,
-	Run: func(_ *cobra.Command, _ []string) {
+	Run: func(cmd *cobra.Command, args []string) {
 		assert(len(signatureAggregateSignatures) > 1, "multiple signatures required to aggregate")
 		var signature *bls.Sign
 		var err error

cmd/signaturesign.go

@@ -36,7 +36,7 @@ var signatureSignCmd = &cobra.Command{
     ethdo signature sign --data=0x5f24e819400c6a8ee2bfc014343cd971b7eb707320025a7bcd83e621e26c35b7 --account="Personal wallet/Operations" --passphrase="my account passphrase"
 
 In quiet mode this will return 0 if the data can be signed, otherwise 1.`,
-	Run: func(_ *cobra.Command, _ []string) {
+	Run: func(cmd *cobra.Command, args []string) {
 		ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
 		defer cancel()
 
@@ -66,7 +66,7 @@ In quiet mode this will return 0 if the data can be signed, otherwise 1.`,
 		copy(specDomain[:], domain)
 		var fixedSizeData [32]byte
 		copy(fixedSizeData[:], data)
-		outputIf(viper.GetBool("debug"), fmt.Sprintf("Signing %#x with domain %#x by public key %#x", fixedSizeData, specDomain, account.PublicKey().Marshal()))
+		fmt.Printf("Signing %#x with domain %#x by public key %#x\n", fixedSizeData, specDomain, account.PublicKey().Marshal())
 		signature, err := util.SignRoot(account, fixedSizeData, specDomain)
 		errCheck(err, "Failed to sign")
 

cmd/signatureverify.go

@@ -41,7 +41,7 @@ var signatureVerifyCmd = &cobra.Command{
     ethdo signature verify --data=0x5f24e819400c6a8ee2bfc014343cd971b7eb707320025a7bcd83e621e26c35b7 --signature=0x8888... --account="Personal wallet/Operations"
 
 In quiet mode this will return 0 if the data can be signed, otherwise 1.`,
-	Run: func(_ *cobra.Command, _ []string) {
+	Run: func(cmd *cobra.Command, args []string) {
 		ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
 		defer cancel()
 

cmd/slot/time/process.go

@@ -19,7 +19,6 @@ import (
 	"time"
 
 	eth2client "github.com/attestantio/go-eth2-client"
-	"github.com/attestantio/go-eth2-client/api"
 	"github.com/pkg/errors"
 )
 
@@ -42,18 +41,17 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 		return nil, errors.New("slot must be a positive integer")
 	}
 
-	genesisResponse, err := data.eth2Client.(eth2client.GenesisProvider).Genesis(ctx, &api.GenesisOpts{})
+	genesis, err := data.eth2Client.(eth2client.GenesisProvider).Genesis(ctx)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to obtain genesis information")
 	}
-	genesis := genesisResponse.Data
 
-	specResponse, err := data.eth2Client.(eth2client.SpecProvider).Spec(ctx, &api.SpecOpts{})
+	config, err := data.eth2Client.(eth2client.SpecProvider).Spec(ctx)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to obtain chain specifications")
 	}
 
-	slotDuration := specResponse.Data["SECONDS_PER_SLOT"].(time.Duration)
+	slotDuration := config["SECONDS_PER_SLOT"].(time.Duration)
 
 	results.startTime = genesis.GenesisTime.Add((time.Duration(slot*int64(slotDuration.Seconds())) * time.Second))
 	results.endTime = results.startTime.Add(slotDuration)

cmd/slot/time/run.go

@@ -1,4 +1,4 @@
-// Copyright © 2021, 2024 Weald Technology Trading.
+// Copyright © 2021 Weald Technology Trading
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -15,8 +15,8 @@ package slottime
 
 import (
 	"context"
-	"errors"
 
+	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -26,7 +26,7 @@ func Run(cmd *cobra.Command) (string, error) {
 	ctx := context.Background()
 	dataIn, err := input(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to set up command"), err)
+		return "", errors.Wrap(err, "failed to obtain input")
 	}
 
 	// Further errors do not need a usage report.
@@ -34,12 +34,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	dataOut, err := process(ctx, dataIn)
 	if err != nil {
-		switch {
-		case errors.Is(err, context.DeadlineExceeded):
-			return "", errors.New("operation timed out; try increasing with --timeout option")
-		default:
-			return "", errors.Join(errors.New("failed to process"), err)
-		}
+		return "", errors.Wrap(err, "failed to process")
 	}
 
 	if viper.GetBool("quiet") {
@@ -48,7 +43,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	results, err := output(ctx, dataOut)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to obtain output"), err)
+		return "", errors.Wrap(err, "failed to obtain output")
 	}
 
 	return results, nil

cmd/slottime.go

@@ -29,7 +29,7 @@ var slotTimeCmd = &cobra.Command{
     ethdo slot time --slot=12345
 
 In quiet mode this will return 0.`,
-	RunE: func(cmd *cobra.Command, _ []string) error {
+	RunE: func(cmd *cobra.Command, args []string) error {
 		res, err := slottime.Run(cmd)
 		if err != nil {
 			return err

cmd/synccommittee/inclusion/output.go

@@ -16,7 +16,6 @@ package inclusion
 import (
 	"context"
 	"fmt"
-	"strconv"
 	"strings"
 )
 
@@ -54,13 +53,13 @@ func (c *command) output(_ context.Context) (string, error) {
 			}
 		}
 		builder.WriteString("Expected: ")
-		builder.WriteString(strconv.Itoa(len(c.inclusions)))
+		builder.WriteString(fmt.Sprintf("%d", len(c.inclusions)))
 		builder.WriteString("\nIncluded: ")
-		builder.WriteString(strconv.Itoa(included))
+		builder.WriteString(fmt.Sprintf("%d", included))
 		builder.WriteString("\nMissed: ")
-		builder.WriteString(strconv.Itoa(missed))
+		builder.WriteString(fmt.Sprintf("%d", missed))
 		builder.WriteString("\nNo block: ")
-		builder.WriteString(strconv.Itoa(noBlock))
+		builder.WriteString(fmt.Sprintf("%d", noBlock))
 
 		builder.WriteString("\nPer-slot result: ")
 		for i, inclusion := range c.inclusions {

cmd/synccommittee/inclusion/process.go

@@ -16,10 +16,8 @@ package inclusion
 import (
 	"context"
 	"fmt"
-	"net/http"
 
 	eth2client "github.com/attestantio/go-eth2-client"
-	"github.com/attestantio/go-eth2-client/api"
 	"github.com/attestantio/go-eth2-client/spec"
 	"github.com/attestantio/go-eth2-client/spec/altair"
 	"github.com/pkg/errors"
@@ -43,14 +41,10 @@ func (c *command) process(ctx context.Context) error {
 		return err
 	}
 
-	syncCommitteeResponse, err := c.eth2Client.(eth2client.SyncCommitteesProvider).SyncCommittee(ctx, &api.SyncCommitteeOpts{
-		State: "head",
-		Epoch: &c.epoch,
-	})
+	syncCommittee, err := c.eth2Client.(eth2client.SyncCommitteesProvider).SyncCommitteeAtEpoch(ctx, "head", c.epoch)
 	if err != nil {
 		return errors.Wrap(err, "failed to obtain sync committee information")
 	}
-	syncCommittee := syncCommitteeResponse.Data
 
 	if syncCommittee == nil {
 		return errors.New("no sync committee returned")
@@ -72,20 +66,11 @@ func (c *command) process(ctx context.Context) error {
 		if lastSlot > c.chainTime.CurrentSlot() {
 			lastSlot = c.chainTime.CurrentSlot()
 		}
-		for slot := firstSlot; slot <= lastSlot; slot++ {
-			blockResponse, err := c.eth2Client.(eth2client.SignedBeaconBlockProvider).SignedBeaconBlock(ctx, &api.SignedBeaconBlockOpts{
-				Block: fmt.Sprintf("%d", slot),
-			})
+		for slot := firstSlot; slot < lastSlot; slot++ {
+			block, err := c.eth2Client.(eth2client.SignedBeaconBlockProvider).SignedBeaconBlock(ctx, fmt.Sprintf("%d", slot))
 			if err != nil {
-				var apiErr *api.Error
-				if errors.As(err, &apiErr) && apiErr.StatusCode == http.StatusNotFound {
-					c.inclusions = append(c.inclusions, 0)
-					continue
-				}
-				return errors.Wrap(err, "failed to obtain beacon block")
+				return err
 			}
-
-			block := blockResponse.Data
 			if block == nil {
 				c.inclusions = append(c.inclusions, 0)
 				continue
@@ -145,7 +130,7 @@ func (c *command) setup(ctx context.Context) error {
 
 	c.chainTime, err = standardchaintime.New(ctx,
 		standardchaintime.WithSpecProvider(c.eth2Client.(eth2client.SpecProvider)),
-		standardchaintime.WithGenesisProvider(c.eth2Client.(eth2client.GenesisProvider)),
+		standardchaintime.WithGenesisTimeProvider(c.eth2Client.(eth2client.GenesisTimeProvider)),
 	)
 	if err != nil {
 		return errors.Wrap(err, "failed to set up chaintime service")

cmd/synccommittee/inclusion/run.go

@@ -1,4 +1,4 @@
-// Copyright © 2022, 2024 Weald Technology Trading.
+// Copyright © 2022 Weald Technology Trading.
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -15,8 +15,8 @@ package inclusion
 
 import (
 	"context"
-	"errors"
 
+	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -27,19 +27,14 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	c, err := newCommand(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to set up command"), err)
+		return "", errors.Wrap(err, "failed to set up command")
 	}
 
 	// Further errors do not need a usage report.
 	cmd.SilenceUsage = true
 
 	if err := c.process(ctx); err != nil {
-		switch {
-		case errors.Is(err, context.DeadlineExceeded):
-			return "", errors.New("operation timed out; try increasing with --timeout option")
-		default:
-			return "", errors.Join(errors.New("failed to process"), err)
-		}
+		return "", errors.Wrap(err, "failed to process")
 	}
 
 	if viper.GetBool("quiet") {
@@ -48,7 +43,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	results, err := c.output(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to obtain output"), err)
+		return "", errors.Wrap(err, "failed to obtain output")
 	}
 
 	return results, nil

cmd/synccommittee/members/input.go

@@ -63,7 +63,7 @@ func input(ctx context.Context) (*dataIn, error) {
 
 	// Chain time.
 	data.chainTime, err = standardchaintime.New(ctx,
-		standardchaintime.WithGenesisProvider(data.eth2Client.(eth2client.GenesisProvider)),
+		standardchaintime.WithGenesisTimeProvider(data.eth2Client.(eth2client.GenesisTimeProvider)),
 		standardchaintime.WithSpecProvider(data.eth2Client.(eth2client.SpecProvider)),
 	)
 	if err != nil {

cmd/synccommittee/members/output_internal_test.go

@@ -50,7 +50,7 @@ func TestOutput(t *testing.T) {
 				json:       true,
 				validators: []phase0.ValidatorIndex{1, 2, 3},
 			},
-			res: `["1","2","3"]`,
+			res: "[1,2,3]",
 		},
 	}
 

cmd/synccommittee/members/process.go

@@ -19,7 +19,6 @@ import (
 	"strings"
 
 	eth2client "github.com/attestantio/go-eth2-client"
-	"github.com/attestantio/go-eth2-client/api"
 	"github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/pkg/errors"
 	"github.com/wealdtech/ethdo/util"
@@ -35,14 +34,10 @@ func process(ctx context.Context, data *dataIn) (*dataOut, error) {
 		return nil, err
 	}
 
-	syncCommitteeResponse, err := data.eth2Client.(eth2client.SyncCommitteesProvider).SyncCommittee(ctx, &api.SyncCommitteeOpts{
-		State: "head",
-		Epoch: &epoch,
-	})
+	syncCommittee, err := data.eth2Client.(eth2client.SyncCommitteesProvider).SyncCommitteeAtEpoch(ctx, "head", epoch)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to obtain sync committee information")
 	}
-	syncCommittee := syncCommitteeResponse.Data
 
 	if syncCommittee == nil {
 		return nil, errors.New("no sync committee returned")

cmd/synccommittee/members/process_internal_test.go

@@ -36,7 +36,7 @@ func TestProcess(t *testing.T) {
 	require.NoError(t, err)
 
 	chainTime, err := standardchaintime.New(context.Background(),
-		standardchaintime.WithGenesisProvider(eth2Client.(eth2client.GenesisProvider)),
+		standardchaintime.WithGenesisTimeProvider(eth2Client.(eth2client.GenesisTimeProvider)),
 		standardchaintime.WithSpecProvider(eth2Client.(eth2client.SpecProvider)),
 	)
 	require.NoError(t, err)

cmd/synccommittee/members/run.go

@@ -1,4 +1,4 @@
-// Copyright © 2021, 2024 Weald Technology Trading.
+// Copyright © 2021 Weald Technology Trading
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -15,8 +15,8 @@ package members
 
 import (
 	"context"
-	"errors"
 
+	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -26,7 +26,7 @@ func Run(cmd *cobra.Command) (string, error) {
 	ctx := context.Background()
 	dataIn, err := input(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to set up command"), err)
+		return "", errors.Wrap(err, "failed to obtain input")
 	}
 
 	// Further errors do not need a usage report.
@@ -34,12 +34,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	dataOut, err := process(ctx, dataIn)
 	if err != nil {
-		switch {
-		case errors.Is(err, context.DeadlineExceeded):
-			return "", errors.New("operation timed out; try increasing with --timeout option")
-		default:
-			return "", errors.Join(errors.New("failed to process"), err)
-		}
+		return "", errors.Wrap(err, "failed to process")
 	}
 
 	if viper.GetBool("quiet") {
@@ -48,7 +43,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	results, err := output(ctx, dataOut)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to obtain output"), err)
+		return "", errors.Wrap(err, "failed to obtain output")
 	}
 
 	return results, nil

cmd/synccommitteeinclusion.go

@@ -31,7 +31,7 @@ var synccommitteeInclusionCmd = &cobra.Command{
 In quiet mode this will return 0 if the validator was in the sync committee, otherwise 1.
 
 epoch can be a specific epoch; If not supplied all slots for the current sync committee period will be provided`,
-	RunE: func(cmd *cobra.Command, _ []string) error {
+	RunE: func(cmd *cobra.Command, args []string) error {
 		res, err := synccommitteeinclusion.Run(cmd)
 		if err != nil {
 			return err

cmd/synccommitteemembers.go

@@ -31,7 +31,7 @@ var synccommitteeMembersCmd = &cobra.Command{
 In quiet mode this will return 0 if the synccommittee members are found, otherwise 1.
 
 epoch can be a specific epoch.  period can be 'current' for the current sync period or 'next' for the next sync period`,
-	RunE: func(cmd *cobra.Command, _ []string) error {
+	RunE: func(cmd *cobra.Command, args []string) error {
 		res, err := synccommitteemembers.Run(cmd)
 		if err != nil {
 			return err
@@ -49,7 +49,7 @@ epoch can be a specific epoch.  period can be 'current' for the current sync per
 func init() {
 	synccommitteeCmd.AddCommand(synccommitteeMembersCmd)
 	synccommitteeFlags(synccommitteeMembersCmd)
-	synccommitteeMembersCmd.Flags().String("epoch", "", "the epoch for which to fetch sync committees")
+	synccommitteeMembersCmd.Flags().Int64("epoch", -1, "the epoch for which to fetch sync committees")
 	synccommitteeMembersCmd.Flags().String("period", "", "the sync committee period for which to fetch sync committees ('current', 'next')")
 }
 

cmd/validator/credentials/get/output.go

@@ -15,7 +15,6 @@ package validatorcredentialsget
 
 import (
 	"context"
-	"encoding/hex"
 	"fmt"
 	"strings"
 
@@ -48,7 +47,7 @@ func (c *command) output(_ context.Context) (string, error) {
 
 // addressBytesToEIP55 converts a byte array in to an EIP-55 string format.
 func addressBytesToEIP55(address []byte) string {
-	bytes := []byte(hex.EncodeToString(address))
+	bytes := []byte(fmt.Sprintf("%x", address))
 	hash := ethutil.Keccak256(bytes)
 	for i := 0; i < len(bytes); i++ {
 		hashByte := hash[i/2]

cmd/validator/credentials/get/run.go

@@ -1,4 +1,4 @@
-// Copyright © 2022, 2024 Weald Technology Trading.
+// Copyright © 2022 Weald Technology Trading.
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -15,8 +15,8 @@ package validatorcredentialsget
 
 import (
 	"context"
-	"errors"
 
+	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -27,19 +27,14 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	c, err := newCommand(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to set up command"), err)
+		return "", errors.Wrap(err, "failed to set up command")
 	}
 
 	// Further errors do not need a usage report.
 	cmd.SilenceUsage = true
 
 	if err := c.process(ctx); err != nil {
-		switch {
-		case errors.Is(err, context.DeadlineExceeded):
-			return "", errors.New("operation timed out; try increasing with --timeout option")
-		default:
-			return "", errors.Join(errors.New("failed to process"), err)
-		}
+		return "", errors.Wrap(err, "failed to process")
 	}
 
 	if viper.GetBool("quiet") {
@@ -48,7 +43,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	results, err := c.output(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to obtain output"), err)
+		return "", errors.Wrap(err, "failed to obtain output")
 	}
 
 	return results, nil

cmd/validator/credentials/set/command.go

@@ -48,7 +48,6 @@ type command struct {
 	genesisValidatorsRoot string
 	prepareOffline        bool
 	signedOperationsInput string
-	maxDistance           uint64
 
 	// Beacon node connection.
 	timeout                  time.Duration
@@ -91,7 +90,6 @@ func newCommand(_ context.Context) (*command, error) {
 		withdrawalAddressStr:  viper.GetString("withdrawal-address"),
 		forkVersion:           viper.GetString("fork-version"),
 		genesisValidatorsRoot: viper.GetString("genesis-validators-root"),
-		maxDistance:           viper.GetUint64("max-distance"),
 	}
 
 	// Timeout is required.

cmd/validator/credentials/set/process.go

@@ -163,7 +163,7 @@ func (c *command) generateOperationFromMnemonicAndPath(ctx context.Context) erro
 	}
 
 	validatorKeyPath := c.path
-	match := validatorPath.MatchString(c.path)
+	match := validatorPath.Match([]byte(c.path))
 	if !match {
 		return fmt.Errorf("path %s does not match EIP-2334 format for a validator", c.path)
 	}
@@ -197,9 +197,6 @@ func (c *command) generateOperationFromMnemonicAndValidator(ctx context.Context)
 
 	// Scan the keys from the seed to find the path.
 	maxDistance := 1024
-	if c.maxDistance > 0 {
-		maxDistance = int(c.maxDistance)
-	}
 	// Start scanning the validator keys.
 	var withdrawalAccount e2wtypes.Account
 	for i := 0; ; i++ {
@@ -250,13 +247,10 @@ func (c *command) generateOperationsFromMnemonic(ctx context.Context) error {
 		validators[fmt.Sprintf("%#x", validator.Pubkey)] = validator
 	}
 
+	maxDistance := 1024
 	// Start scanning the validator keys.
 	lastFoundIndex := 0
 	foundValidatorCount := 0
-	maxDistance := 1024
-	if c.maxDistance > 0 {
-		maxDistance = int(c.maxDistance)
-	}
 	for i := 0; ; i++ {
 		// If no validators have been found in the last maxDistance indices, stop scanning.
 		if i-lastFoundIndex > maxDistance {
@@ -738,7 +732,7 @@ func (c *command) setup(ctx context.Context) error {
 
 	// Set up chaintime.
 	c.chainTime, err = standardchaintime.New(ctx,
-		standardchaintime.WithGenesisProvider(c.consensusClient.(consensusclient.GenesisProvider)),
+		standardchaintime.WithGenesisTimeProvider(c.consensusClient.(consensusclient.GenesisTimeProvider)),
 		standardchaintime.WithSpecProvider(c.consensusClient.(consensusclient.SpecProvider)),
 	)
 	if err != nil {
@@ -834,7 +828,7 @@ func (c *command) obtainForkVersion(_ context.Context) (phase0.Version, error) {
 
 // addressBytesToEIP55 converts a byte array in to an EIP-55 string format.
 func addressBytesToEIP55(address []byte) string {
-	bytes := []byte(hex.EncodeToString(address))
+	bytes := []byte(fmt.Sprintf("%x", address))
 	hash := ethutil.Keccak256(bytes)
 	for i := 0; i < len(bytes); i++ {
 		hashByte := hash[i/2]

cmd/validator/credentials/set/run.go

@@ -1,4 +1,4 @@
-// Copyright © 2022, 2024 Weald Technology Trading.
+// Copyright © 2022 Weald Technology Trading.
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -15,8 +15,8 @@ package validatorcredentialsset
 
 import (
 	"context"
-	"errors"
 
+	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -27,19 +27,14 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	c, err := newCommand(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to set up command"), err)
+		return "", errors.Wrap(err, "failed to set up command")
 	}
 
 	// Further errors do not need a usage report.
 	cmd.SilenceUsage = true
 
 	if err := c.process(ctx); err != nil {
-		switch {
-		case errors.Is(err, context.DeadlineExceeded):
-			return "", errors.New("operation timed out; try increasing with --timeout option")
-		default:
-			return "", errors.Join(errors.New("failed to process"), err)
-		}
+		return "", errors.Wrap(err, "failed to process")
 	}
 
 	if viper.GetBool("quiet") {
@@ -48,7 +43,7 @@ func Run(cmd *cobra.Command) (string, error) {
 
 	results, err := c.output(ctx)
 	if err != nil {
-		return "", errors.Join(errors.New("failed to obtain output"), err)
+		return "", errors.Wrap(err, "failed to obtain output")
 	}
 
 	return results, nil

cmd/validator/depositdata/output.go

@@ -109,10 +109,9 @@ func validatorDepositDataOutputLaunchpad(datum *dataOut) (string, error) {
 	forkVersionMap := map[spec.Version]string{
 		[4]byte{0x00, 0x00, 0x00, 0x00}: "mainnet",
 		[4]byte{0x00, 0x00, 0x20, 0x09}: "pyrmont",
-		[4]byte{0x00, 0x00, 0x10, 0x20}: "goerli",
+		[4]byte{0x00, 0x00, 0x10, 0x20}: "prater",
 		[4]byte{0x80, 0x00, 0x00, 0x69}: "ropsten",
 		[4]byte{0x90, 0x00, 0x00, 0x69}: "sepolia",
-		[4]byte{0x01, 0x01, 0x70, 0x00}: "holesky",
 	}
 
 	if datum.validatorPubKey == nil {
@@ -138,7 +137,7 @@ func validatorDepositDataOutputLaunchpad(datum *dataOut) (string, error) {
 	if network, exists := forkVersionMap[*datum.forkVersion]; exists {
 		networkName = network
 	}
-	output := fmt.Sprintf(`{"pubkey":"%x","withdrawal_credentials":"%x","amount":%d,"signature":"%x","deposit_message_root":"%x","deposit_data_root":"%x","fork_version":"%x","network_name":"%s","deposit_cli_version":"2.7.0"}`,
+	output := fmt.Sprintf(`{"pubkey":"%x","withdrawal_credentials":"%x","amount":%d,"signature":"%x","deposit_message_root":"%x","deposit_data_root":"%x","fork_version":"%x","eth2_network_name":"%s","deposit_cli_version":"1.1.0"}`,
 		*datum.validatorPubKey,
 		datum.withdrawalCredentials,
 		datum.amount,