How to write your own telegram bot C++?

Question

C++ / C#

Having studied about five C ++ tutorials, having written more than one coursework for myself and classmates, I understand that this superficial knowledge is not enough, I would like to implement a more interesting project, but how is the fashion for writing telegram bots, as well as googling various information, nothing I didn’t find a specific one for myself (maybe I didn’t look for it correctly), in addition to studying the Telgram bot api, I would like to know advice on where to start, what resources to read to implement the bot.