How to track telegram bot users?

Question

Python

Tell me, how do you track bot users? I'm interested in their actions and button presses. I assume that you will need a database to enter all user actions and with the help of it is already analytics. Perhaps you can recommend something else?
And I have not yet found an answer to the question, is it possible to find out which of the users has already deleted the bot?

Answer 1

As an option, use a subd, for example mysql, to store users accessing the bot. User IDs are taken from getupdates . Actually, everything that you get with api can be structured and written to the subd.
If the user stops the bot, then the bot is added to the user's blacklist.