@alchemy/aa-core/src/entrypoint/0.6.ts

viem based SDK that enables interactions with ERC-4337 Smart Accounts. ABIs are based off the definitions generated in @account-abstraction/contracts

import {
  encodeAbiParameters,
  hexToBigInt,
  keccak256,
  type Address,
  type Chain,
  type Hash,
  type Hex,
} from "viem";
import {
  arbitrum,
  arbitrumGoerli,
  arbitrumSepolia,
  base,
  baseGoerli,
  baseSepolia,
  goerli,
  mainnet,
  optimism,
  optimismGoerli,
  optimismSepolia,
  polygon,
  polygonAmoy,
  polygonMumbai,
  sepolia,
  fraxtal,
  fraxtalTestnet,
  zora,
  zoraSepolia,
} from "../chains/index.js";
import { EntryPointAbi_v6 } from "../abis/EntryPointAbi_v6.js";
import type { UserOperationRequest } from "../types.js";
import type { SupportedEntryPoint } from "./types.js";

const packUserOperation = (request: UserOperationRequest<"0.6.0">): Hex => {
  const hashedInitCode = keccak256(request.initCode);
  const hashedCallData = keccak256(request.callData);
  const hashedPaymasterAndData = keccak256(request.paymasterAndData);

  return encodeAbiParameters(
    [
      { type: "address" },
      { type: "uint256" },
      { type: "bytes32" },
      { type: "bytes32" },
      { type: "uint256" },
      { type: "uint256" },
      { type: "uint256" },
      { type: "uint256" },
      { type: "uint256" },
      { type: "bytes32" },
    ],
    [
      request.sender as Address,
      hexToBigInt(request.nonce),
      hashedInitCode,
      hashedCallData,
      hexToBigInt(request.callGasLimit),
      hexToBigInt(request.verificationGasLimit),
      hexToBigInt(request.preVerificationGas),
      hexToBigInt(request.maxFeePerGas),
      hexToBigInt(request.maxPriorityFeePerGas),
      hashedPaymasterAndData,
    ]
  );
};

export default {
  version: "0.6.0",

  address: {
    [mainnet.id]: "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789",
    [sepolia.id]: "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789",
    [goerli.id]: "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789",
    [polygon.id]: "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789",
    [polygonMumbai.id]: "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789",
    [polygonAmoy.id]: "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789",
    [optimism.id]: "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789",
    [optimismGoerli.id]: "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789",
    [optimismSepolia.id]: "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789",
    [arbitrum.id]: "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789",
    [arbitrumGoerli.id]: "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789",
    [arbitrumSepolia.id]: "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789",
    [base.id]: "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789",
    [baseGoerli.id]: "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789",
    [baseSepolia.id]: "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789",
    [fraxtal.id]: "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789",
    [fraxtalTestnet.id]: "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789",
    [zora.id]: "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789",
    [zoraSepolia.id]: "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789",
  },

  abi: EntryPointAbi_v6,

  getUserOperationHash: (
    request: UserOperationRequest<"0.6.0">,
    entryPointAddress: Address,
    chainId: number
  ): Hash => {
    const encoded = encodeAbiParameters(
      [{ type: "bytes32" }, { type: "address" }, { type: "uint256" }],
      [
        keccak256(packUserOperation(request)),
        entryPointAddress,
        BigInt(chainId),
      ]
    );

    return keccak256(encoded);
  },

  packUserOperation,
} satisfies SupportedEntryPoint<"0.6.0", Chain, typeof EntryPointAbi_v6>;