Update app.py

app.py

@@ -16,22 +16,35 @@ def webhook():
         verify_token = request.args.get('hub.verify_token')
         challenge = request.args.get('hub.challenge')
 
+        print(f"GET request received: verify_token={verify_token}, challenge={challenge}")
+
         if verify_token == VERIFY_TOKEN:
+            print("Verification token matches. Returning challenge.")
             return challenge
         else:
+            print("Error: wrong validation token.")
             return 'Error, wrong validation token'
 
     elif request.method == 'POST':
         data = request.get_json()
-        messaging_event = data['entry'][0]['messaging'][0]
+        print(f"POST request received: {data}")
+
+        if 'entry' in data and len(data['entry']) > 0 and 'messaging' in data['entry'][0]:
+            messaging_event = data['entry'][0]['messaging'][0]
+            print(f"Messaging event: {messaging_event}")
+
+            if 'message' in messaging_event:
+                sender_id = messaging_event['sender']['id']
+                message_text = messaging_event['message'].get('text', '')
 
-        if 'message' in messaging_event:
-            sender_id = messaging_event['sender']['id']
-            message_text = messaging_event['message'].get('text', '')
+                print(f"Received message from {sender_id}: {message_text}")
 
-            if message_text.lower() == 'hi':
-                response_text = 'hello'
-                send_message(sender_id, response_text)
+                if message_text.lower() == 'hi':
+                    response_text = 'hello'
+                    print(f"Sending response to {sender_id}: {response_text}")
+                    send_message(sender_id, response_text)
+                else:
+                    print(f"No action taken for message: {message_text}")
 
         return jsonify({'status': 'ok'})
 
@@ -43,7 +56,9 @@ def send_message(recipient_id, message_text):
         'recipient': {'id': recipient_id},
         'message': {'text': message_text}
     }
-    requests.post(url, headers=headers, json=payload)
+    print(f"Sending message request: {payload}")
+    response = requests.post(url, headers=headers, json=payload)
+    print(f"Message send response: {response.status_code}, {response.text}")
 
 if __name__ == '__main__':
     app.run(host="0.0.0.0", port=7860, debug=True)