Track messages in a telegram channel, how? A python bot maybe?

Question

Python

I want to make myself an aggregator of telegram channels into one with a filter by message text in order to collect several channels into one with extracting only certain messages according to specified conditions. I suppose that this should be done by a bot, and the question arose whether it is possible to subscribe the bot to channels so that when it receives messages from the channels, it forwards it to my other channel, filtering out unnecessary messages. Where to begin? Is this possible in principle, if so, where to start how to do it?

Answer 1

An ordinary bot will not help here, only channel admins can add it to the channel. You need a client library like telethon or pyrogram for example.