signMessage

signMessage supports signing messages from the Web3AuthSigner.

This method must be called after authenticate. Otherwise, this method will throw an error with the message Not Authenticated.

Usage

example.ts

import { createWeb3AuthSigner } from "./web3auth";

const web3AuthSigner = await createWeb3AuthSigner();

const signedMessage = await web3AuthSigner.signMessage("test");

web3auth.ts

import { Web3AuthSigner } from "@alchemy/aa-signers/web3auth";

export const createWeb3AuthSigner = async () => {
  const web3AuthSigner = new Web3AuthSigner({
    clientId: "test",
    chainConfig: {
      chainNamespace: "eip155",
    },
  });

  await web3AuthSigner.authenticate({
    init: async () => {
      await web3AuthSigner.inner.initModal();
    },
    connect: async () => {
      await web3AuthSigner.inner.connect();
    },
  });

  return web3AuthSigner;
};

Returns

Promise<Hex>

A Promise containing the signature of the message.

Parameters

msg: string | Uint8Array) -- the message to sign