How to get only unread messages from chat using telethon?

Question

I have client.get_messages(dialog.entity) but its return just messages without "read/unread mark"... So, how can I get unread new messages only? Anybody know?

Answer 1

In addition to the accepted answer, it's possible to fetch only the dialogs you are interested in with GetPeerDialogsRequest , which may be used to do operations on entire folders as well.

To get the amount of unread messages from 'username' :

from telethon.sync import TelegramClient
from telethon import functions, types

with TelegramClient(name, api_id, api_hash) as client:
    result = client(functions.messages.GetPeerDialogsRequest(
        peers=['username']
    ))
    print(result.dialogs[0].unread_count)

Note that peers may be a list, so you can fetch multiple at once. Note that the dialog includes more information, such as "up to which ID has been read".

Answer 2

Each dialog has unread_count

x = [[d.unread_count, d.title] for d in client.get_dialogs() if not getattr(d.entity, 'is_private', False) and d.unread_count != 0]

x = [[d.unread_count, d.title] for d in client.get_dialogs() if not getattr(d.entity, 'megagroup', False) and d.unread_count != 0]