danielgeek / biconomy-aa-4337-api-example

Account Abstraction 4337 Example

Mnimal bundler node that is capable of accepting ERC-4337 UserOperations, execute them on supported chain and return the transaction hash in response.

before run the project you will need create a .env file and add the fallowing variables

• PRIVATE_KEY_1 (your wallet private key)
• PRIVATE_KEY_2 (your wallet private key)
• PRIVATE_KEY_3 (your wallet private key)
• ALCHEMY_API_KEY (alchemy node api key)

How run the API

npm i npx tsc node src/index.js

API endpoint

localhost:3000/api/sendUserOp

  "jsonrpc": "2.0",
  "method": "eth_sendUserOperation",
  "params": [{
    "ops": [{
      "sender": "0xD0aFb575CB9f44529A65679Fd3F480F265e5A289",
      "nonce": 1,
      "callData": "0x72b3b6200000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000056464646464000000000000000000000000000000000000000000000000000000",
      "verificationGasAndData": "0x49628fd1471006c1482da88028e9ce4dbb080b815c9b0344d39e5a8e6ec1419f",
      "maxFeePerGas": 10000000000,
      "maxPriorityFeePerGas": 1000000000,
      "paymasterAndData": "0x",
      "signature": "0x49628fd1471006c1482da88028e9ce4dbb080b815c9b0344d39e5a8e6ec1419f"
    }],
    "beneficiary": "0xe12392E42bd36ce2955a91c87AdF03413B73b67c"
  }],
  "id": 1
}