sign_message.ts

import { fromText, Lucid } from "../mod.ts";

// Sign a message and verify it.

const lucid = new Lucid().selectWalletFromSeed("car rare ...");

const address = await lucid.wallet.address();
const payload = fromText("Hello from Lucid!");

const signedMessage = await lucid.newMessage(address, payload).sign();

// Verify the message

const hasSigned: boolean = lucid.verifyMessage(address, payload, signedMessage);

console.log(hasSigned);