What do you need to know and to what extent to start writing bots for messengers?

Question

Bots

Good afternoon. Tell me what you need to know and to what extent to start writing bots for messengers?
Now I know Linux quite well (as it seems to me), I'm starting to learn Python.
What to learn, what to read, in which direction to develop - to start writing bots for messengers?

Answer 1

Bot for which messenger? Here is the main question.
Slack - https://api.slack.com/bot-users
Facebook - https://messengerplatform.fb.com/
Viber - https://developers.viber.com/
For many others, there is one too.
Read documentation, study and write.

Answer 2

You need to read what an API is, find a bot that has an API (for example, telegram), read its documentation and you can immediately write a bot.
PS Of course, it is desirable to know some thread of a modern programming language, python will do

Answer 3

It is necessary to develop skills in debugging network requests (interception by a sniffer) and executable code without source code (with debuggers such as gdb), as well as disassembling and decompiling executable code.
All this together is called reverse engineering.

Answer 4

Look at the bots.
First things first - you need to know at least one PL. Python will do, so study it. You will also need to know probably the messenger protocol - it all depends on how to hook the bot to it.
Further depends on the tasks of the bot - anything can be needed.