如何在Telegram Api中订阅聊天更新？

Question

I'm using Telegram API to develop small custom chat application. I managed to make some basic operations like authorization/chats creation and inviting other users to them.

Now I need to be able to get and handle updates that should come from Telegram itself - like incoming chat messages and other updates.

How do I do this in Telegram API? Is there any long-polling mechanism or something similar? I read all API documentation but failed to find any API that would allow to subscribe to update messages. Best thing that I've found is this updates.getDifference , but it is just a request that allows to get all updates - not to subscribe for new ones.

NB I'm not using Telegram Bot Api.

Answer 1

Your Telegram client keeps an open connection(s) to the telegram servers for active session(s).

Telegram sends you message update as long as this connection stays open.

I find it best to simply listen for in-bound message from Telegram Servers and process the payload(TL data) received as my use-case dictates.

At startup I just send this from a connection to my primary DC:

 msg = TL.invokewithlayer(layer, TL.initconnection(app_id, device_model, system_version, app_version, lang_code, TL.help_getconfig))