Where to start when creating a Telegram Bot?

Question

Bots

Good day to all, I wondered about creating a telegram bot to optimize sales in my business.
Business: -
Sale of goods with individual design or production from metal, wood or leather of any form factors.
- Sale of small things.
Tell me where to start?
Since in Google everything is practically about stores with treasures, and there is no information on where to start and how to reach the final, except how to make a menu.
Thanks, sorry for being lazy :)

Answer 1

From documentation, examples in lib