LocalAccountSigner

The LocalAccountSigner allows you to use accounts for which you already have the private key available locally as signers on Smart Contracts. This Signer is used with HDAccount | PrivateKeyAccount | LocalAccount types from viem.

Usage

private-key.ts

import { LocalAccountSigner } from "@alchemy/aa-core";
 
export const signer =
  LocalAccountSigner.privateKeyToAccountSigner("0xPrivateKey");

Methods

`constructor<T extends HDAccount | PrivateKeyAccount | LocalAccount>(client: T)`

Creates a new LocalAccountSigner using the underlying account type to sign the messages.

`getAddress(): Promise<Address>`

Returns the public address of the underlying Account

`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

`static mnemonicToAccountSigner(key: string): LocalAccountSigner<HDAccount>`

Converts a mnemonic phrase into a LocalAccountSigner

`static privateKeyToAccountSigner(key: Hex): LocalAccountSigner<PrivateKeyAccount>`

Converts a private key hex into a LocalAccountSigner