UserOperationsの作成

// Create a minimal UserOp
const minimalUserOp = {
  sender: aaWalletAddress, // The AA wallet address
  nonce: "0x0",            // Will be filled by the SDK or custom logic
  initCode: "0x",          // Empty for existing wallets
  callData: "0x",          // Will be filled with actual transaction data
  callGasLimit: "0x0",     // Gas estimation
  verificationGasLimit: "0x0",
  preVerificationGas: "0x0",
  maxFeePerGas: "0x0",
  maxPriorityFeePerGas: "0x0",
  paymasterAndData: "0x",  // Will be filled by Paymaster integration
  signature: "0x"          // Will be filled with EOA signature
};

// 1. Start with the builder from previous setup
// const builder = await Presets.Builder.SimpleAccount.init(...);
 
// 2. Create an ERC-20 contract instance
const tokenContract = new ethers.Contract(
  tokenAddress,
  ['function transfer(address to, uint256 amount) returns (bool)'],
  accountSigner
);
 
// 3. Prepare the call data for transfer
const callData = tokenContract.interface.encodeFunctionData(
  'transfer',
  [recipientAddress, ethers.utils.parseUnits(amount, decimals)]
);
 
// 4. Add the transaction to the builder
// This will incorporate the transaction into a UserOperation
builder.execute(tokenAddress, 0, callData);
 
// 5. The builder now contains the UserOperation with your transfer
// Under the hood, it fills in the parameters of the minimal UserOperation:
// - sender: from builder.getSender()
// - nonce: auto-retrieved from the AA wallet
// - callData: your transfer function call
// - gas parameters: estimated or set manually

// 1. Start with the same builder
// const builder = await Presets.Builder.SimpleAccount.init(...);
 
// 2. Prepare multiple call data and targets
const callData = [
  tokenContract.interface.encodeFunctionData('approve', [spender, amount]),
  tokenContract.interface.encodeFunctionData('transfer', [recipient, amount])
];
const callTo = [tokenAddress, tokenAddress];
 
// 3. Add batch execution to the builder
// This bundles multiple transactions into a single UserOperation
builder.executeBatch(callTo, callData);
 
// 4. The builder now contains a UserOperation with multiple actions
// The single UserOperation will:
// - Approve tokens to be spent by another address
// - Transfer tokens to the recipient
// All in one atomic transaction