pyrogram · delivrance · May 12, 2021 · Mar 28, 2021 · alissonlauffer · Apr 4, 2021
diff --git a/pyrogram/methods/chats/__init__.py b/pyrogram/methods/chats/__init__.py
@@ -53,6 +53,7 @@
 from .unpin_all_chat_messages import UnpinAllChatMessages
 from .unpin_chat_message import UnpinChatMessage
 from .update_chat_username import UpdateChatUsername
+from .get_chat_onlines import GetChatOnlines
 
 
 class Chats(
@@ -92,6 +93,7 @@ class Chats(
     DeleteUserHistory,
     UnpinAllChatMessages,
     MarkChatUnread,
-    GetChatEventLog
+    GetChatEventLog,
+    GetChatOnlines
 ):
     pass
diff --git a/pyrogram/methods/chats/get_chat_onlines.py b/pyrogram/methods/chats/get_chat_onlines.py
@@ -0,0 +1,59 @@
+#  Pyrogram - Telegram MTProto API Client Library for Python
+#  Copyright (C) 2017-2021 Dan <https://github.com/delivrance>
+#
+#  This file is part of Pyrogram.
+#
+#  Pyrogram is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU Lesser General Public License as published
+#  by the Free Software Foundation, either version 3 of the License, or
+#  (at your option) any later version.
+#
+#  Pyrogram is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public License
+#  along with Pyrogram.  If not, see <http://www.gnu.org/licenses/>.
+
+from typing import Optional, Union
-from typing import Optional, Union
+from typing import Union
-from typing import Optional, Union
+from typing import Union
+
+from pyrogram import raw
+from pyrogram.scaffold import Scaffold
+
+
+class GetChatOnlines(Scaffold):
+    async def get_chat_onlines(
+        self,
+        chat_id: Union[int, str]
+    ) -> Optional[int]:
-    ) -> Optional[int]:
+    ) -> int:
-    ) -> Optional[int]:
+    ) -> int:
+        """Get count of online users in a chat.
+
+        Parameters:
+            chat_id (``int`` | ``str``):
+                Unique identifier (int) or username (str) of the target chat.
+
+        Returns:
+            ``int``: On success, the chat members online count is returned.
+
+        Raises:
+            ValueError: In case a chat id belongs to user.
+
+        Example:
+            .. code-block:: python
+
+                onlines = app.get_chat_onlines("pyrogram")
+                print(onlines)
+        """
+        peer = await self.resolve_peer(chat_id)
+
+        if isinstance(peer, (raw.types.InputPeerChat, raw.types.InputPeerChannel)):
+            r = await self.send(
+                raw.functions.messages.GetOnlines(
+                    peer=peer
+                )
+            )
+
+            return r.onlines
+        else:
+            raise ValueError(f'The chat_id "{chat_id}" belongs to a user')