Ready Aim Fire Relayer

Description

This project is a Cloudflare Worker designed to forward ERC-2771 transactions to an OpenZeppelin ERC2771Forwarder smart contract. It uses viem to interact with the Ethereum blockchain and handles transaction signing and sending.

Intent

The intent of this project is to provide a secure and efficient way to relay transactions using the ERC-2771 standard, ensuring that transactions are properly signed and executed on the blockchain.

Usage Example

To use this worker, send a POST request with the following JSON body:

{
  "from": "0x...", // The address of the sender.
  "to": "0x...", // The address of the recipient or contract.
  "data": "0x...", // The encoded function call data.
  "value": 1000000000000000000n, // The amount of ETH to send with the transaction.
  "gas": 21000n, // The gas limit for the transaction.
  "deadline": 1234567890n, // The deadline for the transaction to be executed.
  "signature": "0x..." // The signature of the transaction.
}

Response

The worker will return a JSON response with the transaction hash:

{
  "transactionHash": "0x..." // The hash of the sent transaction.
}

Error Handling

If the transaction fails, the worker will return an error message:

{
  "error": "Transaction reverted: ..." // The error message if the transaction fails.
}

API Documentation

• Endpoint: POST /
• Request Body: JSON object containing transaction details.
• Response: JSON object containing the transaction hash or an error message.
• Environment Variables for Deployment:
  • ETH_RPC_URL: The URL of the Ethereum RPC provider.
  • PRIVATE_KEY: The private key used to sign transactions.