Update app.py

app.py

@@ -1,8 +1,13 @@
 import gradio as gr
 import requests
 import json
+import uuid
 
-def respond(message, history, rasa_api_url):
+def generate_random_id():
+    """Generate a random sender ID if none is provided"""
+    return str(uuid.uuid4())[:8]
+
+def respond(message, history, rasa_api_url, nickname):
     """
     Send a message to a Rasa chatbot API and get the response.
     
@@ -10,6 +15,7 @@ def respond(message, history, rasa_api_url):
         message (str): The user's message
         history (list): Chat history
         rasa_api_url (str): URL of the Rasa API endpoint
+        nickname (str): User's nickname to be used as sender ID
     """
     # Process the Rasa API URL
     if not rasa_api_url:
@@ -24,10 +30,13 @@ def respond(message, history, rasa_api_url):
         if "webhooks/rest/webhook" not in rasa_api_url:
             rasa_api_url = rasa_api_url + "webhooks/rest/webhook"
     
+    # Determine sender ID - use nickname if provided, otherwise use the session ID
+    sender_id = nickname if nickname else gr.State(generate_random_id()).value
+    
     try:
         # Prepare the payload
         payload = {
-            "sender": "user",
+            "sender": sender_id,
             "message": message
         }
         
@@ -53,7 +62,6 @@ def respond(message, history, rasa_api_url):
                 return "No response from the bot."
         else:
             return f"Error: Received status code {response.status_code} from the Rasa server."
-    
     except requests.exceptions.RequestException as e:
         return f"Connection error: {str(e)}"
     except json.JSONDecodeError:
@@ -61,19 +69,44 @@ def respond(message, history, rasa_api_url):
     except Exception as e:
         return f"An unexpected error occurred: {str(e)}"
 
+# State to store the random ID for this session
+session_id = gr.State(generate_random_id)
+
 # Create the Gradio interface
-demo = gr.ChatInterface(
-    respond,
-    additional_inputs=[
-        gr.Textbox(
-            value="",
-            placeholder="e.g., http://your-rasa-server.com:5005/webhooks/rest/webhook",
-            label="Rasa API URL"
-        ),
-    ],
-    title="Rasa Chatbot Interface",
-    description="Enter the URL of your Rasa chatbot API and start chatting."
-)
+with gr.Blocks(title="Rasa Chatbot Interface") as demo:
+    gr.Markdown("# Rasa Chatbot Interface")
+    gr.Markdown("Enter the URL of your Rasa chatbot API, optionally provide a nickname, and start chatting.")
+    
+    with gr.Row():
+        with gr.Column(scale=3):
+            rasa_api_url = gr.Textbox(
+                value="",
+                placeholder="e.g., http://your-rasa-server.com:5005/webhooks/rest/webhook",
+                label="Rasa API URL"
+            )
+        with gr.Column(scale=1):
+            nickname = gr.Textbox(
+                value="",
+                placeholder="Enter a nickname (optional)",
+                label="Your Nickname"
+            )
+    
+    chatbot = gr.Chatbot()
+    msg = gr.Textbox(placeholder="Type your message here...", label="Message")
+    clear = gr.Button("Clear")
+    
+    # Set up event handlers
+    msg.submit(
+        respond, 
+        [msg, chatbot, rasa_api_url, nickname], 
+        [chatbot]
+    ).then(
+        lambda: "", 
+        None, 
+        [msg]
+    )
+    
+    clear.click(lambda: None, None, chatbot)
 
 if __name__ == "__main__":
     demo.launch()