What for?

Package for checking parameters of Telegram Web Apps startup. The code is taken from the official documentation and put into one package for easy use.

Getting started with the package

First, install the package:

npm i tgwa-params-checker

Initialize it in your project:

const checkHash = require("tgwa-params-checker");
// or
import checkHash from "tgwa-params-checker";

Using example:

const isValidParams = checkHash(
  "startup params from web app window",
  "bot secret key"
);

The function returns true or false.

Example

const isValidParams = checkHash(
  "query_id=AAHhpGQWAAAAAOGkZBacHiQ6&user=%7B%22id%22%3A375694561%2C%22first_name%22%3A%22%D0%9D%D0%98%D0%9A%D0%98%D0%A2%D0%90%22%2C%22last_name%22%3A%22%D0%9A%D0%9E%D0%9A%D0%90%22%2C%22username%22%3A%22lukasandreano%22%2C%22language_code%22%3A%22en%22%2C%22is_premium%22%3Atrue%7D&auth_date=1679551046&hash=36e589beaeb21328f4bcbec1816b8aba595f2612a28ea9beed696c2e9d85ecf3",
  "TdpgoP3d9Wggrfs1qtNhw"
); // false