Unique invite link to telegram channel using telethon

Question

I want to create an invite system to a telegram channel (public but also later private).

I saw that a telethon bot can create his own invite link. So is it possible to get an invite link from a member of the group that is not the bot itself?

Or maybe anyone has another idea? Want that member can earn points by inviting others... so far I do that by a bot who asks "who invites you" and add the user to the channel but there is some trouble by writing usernames wrong etc...

Answer 1

The service message "<user> joined the group via invite link" contains information about the inviter_id. This can be checked like so:

from telethon import types

if isinstance(message.action, types.MessageActionChatJoinedByLink):
    user_who_joined = message.from_id
    user_who_created_link = message.action.inviter_id

For the sake of completeness, generating a new link (and revoking the old one if any) is done with ExportChatInviteRequest:

from telethon import functions

result = await client(functions.messages.ExportChatInviteRequest(chat))
print(result.link)