add: missing params error exception

app.py

@@ -484,6 +484,26 @@ def create_chat_interface():
             origin = request.query_params.get("origin", None)
             ct = request.query_params.get("ct", None)
             turl = request.query_params.get("turl", None)
+            required_params = ["cid", "rsid", "origin", "ct", "turl"]
+            missing_params = [
+                param
+                for param in required_params
+                if request.query_params.get(param) is None
+            ]
+            if missing_params:
+                error_message = (
+                    f"Missing required parameters: {', '.join(missing_params)}"
+                )
+                chatbot_value = [(None, error_message)]
+                return [
+                    chatbot_value,
+                    None,
+                    None,
+                    None,
+                    None,
+                    None,
+                    None,
+                ]
 
             # if any param is missing, return error
             if not cid or not rsid or not origin or not ct or not turl: