How do I get authentication in a telegram bot?

This repository attempts to illustrate this answer to this question in actual, runnable code.

What this repository is:

• A very simple web app to exemplify authentication in Telegram Bots

What this repository is not:

• Secure
• Production-ready
• Thread-safe
• A source of best-practices

Please do not use this code in production environments. Do use it to gain understanding on how authentication works.

How do I run the example?

This web application requires PHP 5.6+.

Clone the repo:

git clone https://github.com/pevdh/telegram-auth-example.git
cd telegram-auth-example

Open config.php and change the constants BOT_NAME and BOT_TOKEN to your bot's name and token.

Launch the built-in PHP webserver:

php -S 127.0.0.1:8000 -t web

Then launch the long-polling bot in another terminal:

php bin/bot.php

Open your browser and visit http://127.0.0.1:8000/. Now fill in the form and follow the link that is displayed; the Telegram desktop application should launch. Press the "START" button at the bottom of the conversation to receive a warm, personalized welcome from your bot!