def post(self, conversation_id):
conversation = ndb.Key(Conversation, int(conversation_id)).get()
if not conversation or self.user.key not in conversation.visibleto_user_keys:
return self.abort(404)
message = Message(conversation_key=conversation.key, sender_key=self.user.key, body=self.request.body)
message.put()
message.process()
self.render_json_response(message)
