WalletClientSigner

The WalletClientSigner is useful if you want to convert a viem WalletClient to a SmartAccountSigner which can be used as a signer to use to connect to Smart Contract Accounts

Usage

wallet-client-signer.ts

import {
  WalletClientSigner,
  sepolia,
  type SmartAccountSigner,
} from "@alchemy/aa-core";
import { createWalletClient, custom } from "viem";

const externalProvider = window.ethereum; // or anyother EIP-1193 provider

const walletClient = createWalletClient({
  chain: sepolia, // can provide a different chain here
  transport: custom(externalProvider),
});

export const signer: SmartAccountSigner = new WalletClientSigner(
  walletClient,
  "json-rpc" // signerType
);

Methods

constructor(client: WalletClient)

Creates a new WalletClient using the WalletClient to sign messages

getAddress(): Promise<Address>

Returns the public address of the underlying Wallet

signMessage(msg: string | Hex | ByteArray): Promise<Hex>

Signs and returns a message in EIP-191 format

signTypedData(params: SignTypedDataParams): Promise<Hex>

Signs and returns a message in EIP-712 format using eth_signTypedData_v4