Ethereum Goerli Biconomy smart account implementation with Smart WaaS (modular SA update)

App.tsx

import React, { useState, useEffect } from 'react';
import { ParticleNetwork } from '@particle-network/auth';
import { ParticleProvider } from '@particle-network/provider';
import { EthereumGoerli } from '@particle-network/chains';
import { AAWrapProvider, SmartAccount, SendTransactionMode } from '@particle-network/aa';
import { ethers } from 'ethers';

const config = {
  projectId: process.env.REACT_APP_PROJECT_ID,
  clientKey: process.env.REACT_APP_CLIENT_KEY,
  appId: process.env.REACT_APP_APP_ID,
};

const particle = new ParticleNetwork({
  ...config,
  chainName: EthereumGoerli.name,
  chainId: EthereumGoerli.id,
  wallet: { displayWalletEntry: true }
});

const smartAccount = new SmartAccount(new ParticleProvider(particle.auth), {
  ...config,
  aaOptions: {
    biconomy: [{ chainId: 5, version: '1.0.0' }],
    paymasterApiKeys: [{ chainId: 5, apiKey: process.env.BICONOMY_API_KEY }]
  }
});

const customProvider = new ethers.providers.Web3Provider(new AAWrapProvider(smartAccount, SendTransactionMode.Gasless), "any");

particle.setERC4337({
  name: 'BICONOMY',
  version: '1.0.0'
});

const App = () => {
  const [userInfo, setUserInfo] = useState(null);
  const [ethBalance, setEthBalance] = useState(null);

  useEffect(() => {
    if (userInfo) {
      fetchEthBalance();
    }
  }, [userInfo]);

  const fetchEthBalance = async () => {
    const address = await smartAccount.getAddress();
    const balance = await customProvider.getBalance(address);
    setEthBalance(ethers.utils.formatEther(balance));
  };

  const handleLogin = async (preferredAuthType) => {
    const user = !particle.auth.isLogin() ? await particle.auth.login({preferredAuthType}) : particle.auth.getUserInfo();
    setUserInfo(user);
  }

  const executeUserOp = async () => {
    const signer = customProvider.getSigner();
    const tx = {
      to: "0x000000000000000000000000000000000000dEaD",
      value: ethers.utils.parseEther("0.001"),
    };
    const txResponse = await signer.sendTransaction(tx);
    const txReceipt = await txResponse.wait();
    console.log('Transaction hash:', txReceipt.transactionHash);
  };

  return (
    <div className="App">
      {!userInfo ? (
        <div>
          <button onClick={() => handleLogin('google')}>Sign in with Google</button>
          <button onClick={() => handleLogin('twitter')}>Sign in with Twitter</button>
        </div>
      ) : (
        <div>
          <h2>{userInfo.name}</h2>
          <div>
            <small>{ethBalance} ETH</small>
            <button onClick={executeUserOp}>Execute User Operation</button>
          </div>
        </div>
      )}
    </div>
  );
};

export default App;