feat: add reaction to message

fixes #38
Added the reaction feature.

README.md

@@ -46,6 +46,7 @@ I fixed some bugs and added many features, however the library still needs a lot
 - Listening to events (messages, media, etc.)
 - Sending messages
 - Marking messages as read
+- Reacting to messages
 - Sending Media (images, audio, video and documents)
 - Sending location
 - Sending interactive buttons

whatsapp/__init__.py

@@ -272,4 +272,4 @@ def __init__(self, id: int = None, data: dict = {}, instance: WhatsApp = None, c
             except:
                 pass
 
-    from .ext._message import send, reply, mark_as_read
+    from .ext._message import send, reply, mark_as_read, react

whatsapp/ext/_message.py

@@ -2,6 +2,25 @@
 import requests
 
 
+def react(self, emoji: str) -> dict:
+    data = {
+        "messaging_product": "whatsapp",
+        "recipient_type":"individual",
+        "to": self.sender,
+        "type": "reaction",
+        "reaction": {"message_id": self.id, "emoji": emoji},
+    }
+    logging.info(f"Reacting to {self.id}")
+    r = requests.post(self.url, headers=self.headers, json=data)
+    if r.status_code == 200:
+        logging.info(f"Reaction sent to {self.to}")
+        return r.json()
+    logging.info(f"Reaction not sent to {self.to}")
+    logging.info(f"Status code: {r.status_code}")
+    logging.debug(f"Response: {r.json()}")
+    return r.json()
+
+
 def send_template(self, template: str, recipient_id: str, components: str, lang: str = "en_US") -> dict:
     """
     Sends a template message to a WhatsApp user, Template messages can either be;