Add Python API to send reactions (#3762)

python/src/deltachat/message.py

@@ -9,6 +9,7 @@ from typing import Optional, Union
 from . import const, props
 from .capi import ffi, lib
 from .cutil import as_dc_charpointer, from_dc_charpointer, from_optional_dc_charpointer
+from .reactions import Reactions
 
 
 class Message(object):
@@ -161,6 +162,17 @@ class Message(object):
             )
         )
 
+    def send_reaction(self, reaction: str):
+        """Send a reaction to message and return the resulting Message instance."""
+        msg_id = lib.dc_send_reaction(self.account._dc_context, self.id, as_dc_charpointer(reaction))
+        if msg_id == 0:
+            raise ValueError("reaction could not be send")
+        return Message.from_db(self.account, msg_id)
+
+    def get_reactions(self) -> Reactions:
+        """Get :class:`deltachat.reactions.Reactions` to the message."""
+        return Reactions.from_msg(self)
+
     def is_system_message(self):
         """return True if this message is a system/info message."""
         return bool(lib.dc_msg_is_info(self._dc_msg))