Add method send_reaction

pyrogram/methods/messages/__init__.py

@@ -53,6 +53,7 @@ from .send_media_group import SendMediaGroup
 from .send_message import SendMessage
 from .send_photo import SendPhoto
 from .send_poll import SendPoll
+from .send_reaction import SendReaction
 from .send_sticker import SendSticker
 from .send_venue import SendVenue
 from .send_video import SendVideo
@@ -106,6 +107,7 @@ class Messages(
     CopyMediaGroup,
     SearchMessagesCount,
     SearchGlobalCount,
-    GetDiscussionMessage
+    GetDiscussionMessage,
+    SendReaction
 ):
     pass

pyrogram/methods/messages/send_reaction.py

@@ -0,0 +1,65 @@
+#  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 Union
+
+from pyrogram import raw
+from pyrogram.scaffold import Scaffold
+
+
+class SendReaction(Scaffold):
+    async def send_reaction(
+        self,
+        chat_id: Union[int, str],
+        message_id: int,
+        emoji: str = ""
+    ) -> bool:
+        """Send a reaction to a message.
+
+        Parameters:
+            chat_id (``int`` | ``str``):
+                Unique identifier (int) or username (str) of the target chat.
+
+            message_id (``int``):
+                Identifier of the message.
+
+            emoji (``str``, *optional*):
+                Reaction emoji.
+                Pass "" as emoji (default) to retract the reaction.
+
+        Returns:
+            ``bool``: On success, True is returned.
+
+        Example:
+            .. code-block:: python
+
+                # Send a reaction
+                app.send_reaction(chat_id, message_id, "🔥")
+
+                # Retract a reaction
+                app.send_reaction(chat_id, message_id)
+        """
+        await self.send(
+            raw.functions.messages.SendReaction(
+                peer=await self.resolve_peer(chat_id),
+                msg_id=message_id,
+                reaction=emoji
+            )
+        )
+
+        return True