Update app.py

app.py

@@ -95,15 +95,17 @@ with gr.Blocks(title="Rasa Chatbot Interface") as demo:
     msg = gr.Textbox(placeholder="Type your message here...", label="Message")
     clear = gr.Button("Clear")
     
+    # Function to properly format messages for the chatbot
+    def user_message_and_response(message, chat_history, rasa_url, nick):
+        bot_response = respond(message, chat_history, rasa_url, nick)
+        chat_history.append((message, bot_response))
+        return "", chat_history
+    
     # Set up event handlers
     msg.submit(
-        respond, 
+        user_message_and_response, 
         [msg, chatbot, rasa_api_url, nickname], 
-        [chatbot]
-    ).then(
-        lambda: "", 
-        None, 
-        [msg]
+        [msg, chatbot]
     )
     
     clear.click(lambda: None, None, chatbot)