How to get Telegram channel users list with Telegram Bot API

Question

Anybody give a starter on how may I get information about users from my telegram bot. Imagine my bot in an admin user in my channel and I want to get my channel user list or

Answer 1

In order to get user list, you need to use telegram API.

Telegram API is fairly complicated. There are some clients which can get the job done much faster.

For python, there is Telethon, and the code to get channel users is:

from telethon import TelegramClient

from telethon.tl.functions.contacts import ResolveUsernameRequest
from telethon.tl.functions.channels import GetAdminLogRequest

from telethon.tl.types import InputChannel
from telethon.tl.types import ChannelAdminLogEventsFilter
from telethon.tl.types import InputUserSelf
from telethon.tl.types import InputUser

# These example values won't work. You must get your own api_id and
# api_hash from https://my.telegram.org, under API Development.
api_id = ****** # Your api_id
api_hash = '********************************' # Your api_hash
phone_number = '+989122594574' # Your phone number

client = TelegramClient(phone_number, api_id, api_hash)
client.session.report_errors = False
client.connect()

if not client.is_user_authorized():
    client.send_code_request(phone_number)
    client.sign_in(phone_number, input('Enter the code: '))


channel = client(ResolveUsernameRequest('tabe_eshgh')) # Your channel username

user = client(ResolveUsernameRequest('amir2b')) # Your channel admin username
admins = [InputUserSelf(), InputUser(user.users[0].id, user.users[0].access_hash)] # admins
admins = [] # No need admins for join and leave and invite filters

filter = None # All events
# param: (join, leave, invite, ban, unban, kick, unkick, promote, demote, info, settings, pinned, edit, delete)
filter = ChannelAdminLogEventsFilter(True, True, True, False, False, False, False, False, False, False, False, False, False, False)

result = client(GetAdminLogRequest(InputChannel(channel.chats[0].id, channel.chats[0].access_hash), '', 0, 0, 10, filter, admins))
##print(result)

for _user in result.users:
    ##print(_user.id)
    with open(''.join(['users/', str(_user.id)]), 'w') as f:
        f.write(str(_user.id))