feat: initial

Author: dartsideofTHEmoon

.gitignore

@@ -0,0 +1,136 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+.pnpm-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+web_modules/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional stylelint cache
+.stylelintcache
+
+# Microbundle cache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variable files
+.env
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+.parcel-cache
+
+# Next.js build output
+.next
+out
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+
+# Gatsby files
+.cache/
+# Comment in the public line in if your project uses Gatsby and not Next.js
+# https://nextjs.org/blog/next-9-1#public-directory-support
+# public
+
+# vuepress build output
+.vuepress/dist
+
+# vuepress v2.x temp and cache directory
+.temp
+.cache
+
+# vitepress build output
+**/.vitepress/dist
+
+# vitepress cache directory
+**/.vitepress/cache
+
+# Docusaurus cache and generated files
+.docusaurus
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+.vscode-test
+
+# yarn v2
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*

README.md

@@ -0,0 +1,41 @@
+# Tutorial Stargate API Verification
+
+![Stargate API Tutorial](https://stargate.finance/static/og-image.jpg)
+
+This repository demonstrates how to verify the transactions generated by Stargate API . Stargate is a protocol that enables seamless asset transfers between different blockchain networks.
+
+## Getting Started
+
+The `/src` directory contains the cross-chain transfer script logic.
+
+### Prerequisites
+
+- 🔸 [Node.js](https://nodejs.org/en/download)
+- 🔸 Funded wallet with USDC on mainnet or testnet
+
+### Faucets
+
+- [Optimism Sepolia Faucet](https://www.alchemy.com/faucets/optimism-sepolia)
+- [Ethereum Sepolia Faucet](https://www.alchemy.com/faucets/ethereum-sepolia)
+
+### Installation
+
+```bash
+yarn 
+```
+
+### Usage 
+
+Verify USDC from Ethereum to Polygon (EVM)
+
+```shell
+yarn run verify:evm
+```
+
+## Join the community
+
+Join our Community of developers creating universal apps.
+
+- [Stargate on GitHub](https://github.com/stargate-protocol): Stargate protocol open source code.
+- [Discord Builders Community](https://discord.gg/4t8CJXufWM): Chat with the Stargate builders community.
+

package.json

@@ -0,0 +1,20 @@
+{
+  "name": "tutorial-api-verification",
+  "version": "1.0.0",
+  "main": "index.js",
+  "scripts": {
+    "verify:evm": "npx ts-node src/evm/index.ts"
+  },
+  "author": "",
+  "license": "ISC",
+  "description": "",
+  "dependencies": {
+    "@types/bs58": "^5.0.0",
+    "bs58": "^6.0.0",
+    "typescript": "^5.8.3",
+    "viem": "^2.26.2"
+  },
+  "devDependencies": {
+    "@types/node": "^22.14.0"
+  }
+}

src/evm/index.ts

@@ -0,0 +1,22 @@
+import { decodeFunctionData } from 'viem';
+import AbiJson from '../utils/Abi.json';
+
+// Data is taken from the data object generated by the Stargate API
+// Abi is taken from the OFT contract
+async function verifyStargateTransaction() {
+  const data = decodeFunctionData({
+    abi: AbiJson.abi,
+    data: '0xc7c7f5b30000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000012ce34a4d0eb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000006d9798053f498451bec79c0397f7f95b079bdcd6000000000000000000000000000000000000000000000000000000000000759f0000000000000000000000006d9798053f498451bec79c0397f7f95b079bdcd60000000000000000000000000000000000000000000000000de0b6b3a7640000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000e000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000000120000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000',
+  });
+
+  console.log('Decoded data:', data);
+}
+
+// Verify the transaction
+void verifyStargateTransaction()
+  .then(() => {
+    console.log('Successfully verified Stargate transaction');
+  })
+  .catch((err) => {
+    console.error('Failed to verify Stargate transaction:', err);
+  });