prepareCalls

function prepareCalls(client, params): Promise<PrepareCallsResult>;

Defined in: packages/wallet-apis/src/actions/prepareCalls.ts:82

Prepares a set of contract calls for execution by building a user operation. Returns the built user operation and a signature request that needs to be signed before submitting to sendPreparedCalls.

The client defaults to using EIP-7702 with the signer's address, so you can call this directly without first calling requestAccount.

Example

// Prepare a sponsored user operation call (uses signer address via EIP-7702 by default)
const result = await client.prepareCalls({
  calls: [
    {
      to: "0x1234...",
      data: "0xabcdef...",
      value: 0n,
    },
  ],
  capabilities: {
    paymaster: { policyId: "your-policy-id" },
  },
});

Parameters

Returns

Promise<PrepareCallsResult>

A Promise that resolves to the prepared calls result containing the user operation data and signature request