Account Abstraction CoreSDK ReferenceFunctions

default7702UserOpSigner

Provides a default middleware function for signing user operations with a client account when using EIP-7702 delegated accounts. If the signer doesn’t support signAuthorization, then this just runs the provided signUserOperation middleware. This function is only compatible with accounts using EntryPoint v0.7.0, and the account must have an implementation address defined in getImplementationAddress().

Import

1import { default7702UserOpSigner } from "@aa-sdk/core";

Usage

1import {
2  default7702GasEstimator,
3  default7702UserOpSigner,
4  createSmartAccountClient,
5  type SmartAccountClient,
6} from "@aa-sdk/core";
7import {
8  createModularAccountV2,
9  type CreateModularAccountV2ClientParams,
10} from "@account-kit/smart-contracts";
11
12async function createSMA7702AccountClient(
13  config: CreateModularAccountV2ClientParams
14): Promise<SmartAccountClient> {
15  const sma7702Account = await createModularAccountV2({
16    ...config,
17    mode: "7702",
18  });
19
20  return createSmartAccountClient({
21    account: sma7702Account,
22    gasEstimator: default7702GasEstimator(config.gasEstimator),
23    signUserOperation: default7702UserOpSigner(config.signUserOperation),
24    ...config,
25  });
26}

Parameters

userOpSigner

ClientMiddlewareFn Optional user operation signer function

Returns

Function A middleware function that signs EIP-7702 authorization tuples if necessary, and also uses the provided or default user operation signer to generate the user op signature.