How to save the invite link that the user of the telegram bot followed?

Question

Python

How to find out the link that the user clicked on to join the bot?

Answer 1

If you mean GET parameters start or startgroup, then their value will be added to the start message separated by a space. Those. when the https://t.me/triviabot?start=payloadbot will receive an incoming message /start payload
https://core.telegram.org/bots#deep-linking