appwrite/docs/examples/account/update-email.md

Appwrite is an open-source self-hosted backend server that abstract and simplify complex and repetitive development tasks behind a very simple REST API

import { Client, Account } from "appwrite";

const client = new Client()
    .setEndpoint('https://cloud.appwrite.io/v1') // Your API Endpoint
    .setProject('5df5acd0d48c2'); // Your project ID

const account = new Account(client);

const result = await account.updateEmail(
    'email@example.com', // email
    'password' // password
);

console.log(response);