Implementation

.eslintrc.yml

@@ -0,0 +1,14 @@
+root: true
+parser: '@typescript-eslint/parser'
+plugins:
+  - '@typescript-eslint'
+extends:
+  - eslint:recommended
+  - plugin:@typescript-eslint/recommended
+  - prettier
+rules:
+  '@typescript-eslint/no-namespace':
+  - 2
+  - allowDeclarations: true
+env:
+  node: true

.github/workflows/on-push.yml

@@ -0,0 +1,44 @@
+name: Push workflow
+
+on: push
+
+jobs:
+  build:
+    if: "! contains(toJSON(github.event.commits.*.message), '[skip-ci]')"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+      - name: Cache node modules
+        uses: actions/cache@v3
+        env:
+          cache-name: cache-node-modules
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-build-${{ env.cache-name }}-
+            ${{ runner.os }}-build-
+            ${{ runner.os }}-
+      - name: Install Dependencies
+        run: npm ci
+
+  publish-gpr:
+    if: github.ref == 'refs/heads/main'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ssh-key: ${{ secrets.PUBLIC_PACKAGE_PUBLISH_SECRET }}
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          scope: '@blocktorch'
+      - name: Install Dependencies
+        run: npm ci
+      - name: Release
+        env:
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+        run: npx semantic-release

.gitignore

@@ -33,3 +33,5 @@ yarn-error.log*
 # turbo
 .turbo
 .idea
+
+dist

.husky/commit-msg

@@ -0,0 +1,4 @@
+#!/usr/bin/env sh
+. "$(dirname -- "$0")/_/husky.sh"
+
+npx --no -- commitlint --edit "$1"

.prettierignore

@@ -0,0 +1,10 @@
+.yarn
+node_modules
+package.json
+README.md
+yarn.lock
+package-lock.json
+.husky
+.vscode
+scripts
+example-data

.prettierrc.yml

@@ -0,0 +1,5 @@
+trailingComma: "none"
+tabWidth: 2
+semi: false
+singleQuote: true
+printWidth: 120

.vscode/settings.json

@@ -0,0 +1,8 @@
+{
+  "editor.defaultFormatter": "esbenp.prettier-vscode",
+  "editor.formatOnSave": true,
+  "editor.codeActionsOnSave": {
+    "source.fixAll": "explicit",
+    "source.organizeImports": "explicit"
+  }
+}

LICENSE

@@ -0,0 +1,201 @@
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README.md

@@ -0,0 +1,24 @@
+
+# Optimism batch decoder
+Decodes the calldata of a batcher transaction and returns the L2 transactions within it
+
+## Installation
+`npm i @blocktorch/optimism-batch-decoder` or `yarn add @blocktorch/optimism-batch-decoder`
+
+## Usage
+```
+import { decodeBatcherTransactionCalldata } from '@blocktorch/optimism-batch-decoder'
+
+const batcherTransaction = await decodeBatcherTransactionCalldata(calldata)
+```
+
+- use `decodeBatcherTransactionCalldata` to decode the provided calldata.
+- use `decodeBatcherTransaction` to only provide the transaction hash and provider URL. It will fetch the calldata for you and decode the same way.
+
+
+- use `testWithExampleData` function to decode example calldata. You can provide the path to example call data, but by default it looks for `example-data/calldata.txt` in the repo.
+
+NB! SpanBatch decoding is unimplemented at the moment.
+
+
+Made with 💛 at Blocktorch

commitlint.config.js

@@ -0,0 +1,3 @@
+module.exports = {
+  extends: ['@commitlint/config-conventional']
+}