Update app.py

app.py

@@ -13,7 +13,7 @@ headers = {
 @app.route('/get_response', methods=['POST'])
 def get_response():
     user_message = request.json.get('message')
-    chat_history = data.get('chat_history', "")
+    chat_history = request.json.get('chat_history')
     
     if not user_message:
         return jsonify({"error": "User message is required"}), 400