Update streamlit_app.py

streamlit_app.py

@@ -8,27 +8,45 @@ os.environ["STREAMLIT_CONFIG_DIR"] = "/tmp/.streamlit"
 st.set_page_config(page_title="OpenRouter Chat", layout="wide")
 st.title("🧠 OpenRouter Chat Interface")
 
+# Initialize chat history if it doesn't exist
 if "chat_history" not in st.session_state:
     st.session_state.chat_history = []
 
-user_input = st.chat_input("Type your message...")
+# Display chat messages from history
+for role, msg in st.session_state.chat_history:
+    with st.chat_message(role):
+        st.write(msg)
 
-if user_input:
-    st.session_state.chat_history.append(("user", user_input))
+# Get user input
+if prompt := st.chat_input("Type your message..."):
+    # Add user message to chat history
+    st.session_state.chat_history.append(("user", prompt))
+    
+    # Display user message immediately
+    with st.chat_message("user"):
+        st.write(prompt)
+    
+    # Get and display bot response
     with st.spinner("Thinking..."):
         try:
             response = httpx.post(
                 "http://localhost:7860/query",
-                data={"prompt": user_input}
+                json={"prompt": prompt},  # Changed from data to json for better formatting
+                timeout=10.0  # Added timeout to prevent hanging
             )
+            
             if response.status_code == 200:
                 reply = response.json().get("response", "No response received.")
             else:
                 reply = f"Error: {response.status_code} - {response.text}"
+        except httpx.RequestError as e:
+            reply = f"Request error: {str(e)}"
         except Exception as e:
-            reply = f"Exception occurred: {e}"
-
+            reply = f"Unexpected error: {str(e)}"
+        
+        # Add bot response to chat history
         st.session_state.chat_history.append(("bot", reply))
-
-for role, msg in st.session_state.chat_history:
-    st.chat_message(role).write(msg)
+        
+        # Display bot response
+        with st.chat_message("bot"):
+            st.write(reply)