[SOLVED] User (role: guests) missing scope (users.write)

I am trying to explore the node sdk for appwrite. I couldn't able to create user. Whenever I try to create user or to write in db. I am getting this error User (role: guests).

TypeScript

import * as env from "dotenv";
import {
  Client,
  Users,
  Account,
  Databases,
  ID,
  Permission,
  Role,
} from "node-appwrite";

env.config();

const client = new Client();
client
  .setEndpoint("https://cloud.appwrite.io/v1")
  .setProject(process.env.PROJECT_ID)
  .setKey(process.env.API_KEY).setSelfSigned(true);

const users = new Users(client);

const dbs = new Databases(client);

async function createDB(){
    return await dbs.create(ID.unique(), "Demo Database");
}

async function createUser(email, password, name){
    return await users.create(ID.unique(), email, undefined, password, name);
}

This is my code

TL;DR

User is getting the error "User (role: guests)" when trying to create a user or write to the database using the Appwrite Node.js SDK. The error indicates that the user is not authenticated. The user has checked if the project ID and API key were correct, but the issue persisted. Someone recommended debugging `process.env.PROJECT_ID` and `process.env.API_KEY`. The user mentioned that they had successfully used the Python SDK. Solution: In the code provided, the user has not called the `users.createSession()` function after setting the project ID and API key. This function is necessary to authenticate the user.

I have done the same thing in python sdk I worked perfectly fine!!