node-telegram-login

Check Telegram Login Widget hash manually or with an express.js middleware

npm install node-telegram-login

Simply use the check method

import { TelegramLogin } from 'node-telegram-login'
const TelegramAuth = new TelegramLogin('<BOT_TOKEN>');

const verify = (data: TelegramLoginPayload) => 
  console.log(
    TelegramAuth.checkLoginData(data) ?
    `Payload is safe! We can trust ${data.first_name}`,
    'Uhm. Payload is not secure'
  );

Or as an express.js middleware like this:

```typescript import { TelegramLogin } from ‘node-telegram-login’ const TelegramAuth = new TelegramLogin(‘');

app.get(‘/login/telegram’, TelegramAuth.defaultMiddleware(), (req, res) => { console.log(res.locals.telegram_user) });