node-appwrite/docs/examples/account/create-anonymous-session.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

const sdk = require('node-appwrite');

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

const account = new sdk.Account(client);

const result = await account.createAnonymousSession();