Update app.py

app.py

@@ -6,17 +6,14 @@ def get_response(user_input):
     return "I dont know"
     
 
-
-
-
-
-
+# app config
 st.set_page_config(page_title= "Chat with Websites", page_icon="🤖")
-
 st.title("Chat with Websites")
-chat_history = [ 
+
+
+if "chat_history" not in st.session_state:
+    st.session_state.chat_history = [ 
     AIMessage(content = "Hello, I am a bot. How can I help you"),
-    
 ]
 
 
@@ -29,8 +26,8 @@ with st.sidebar:
 user_query = st.chat_input("Type your message here...")
 if user_query is not None and user_query !="":
     response = get_response(user_query)
-    chat_history.append(HumanMessage(content=user_query))
-    chat_history.append(AIMessageMessage(content=response))
+    st.session_state.chat_history .append(HumanMessage(content=user_query))
+    st.session_state.chat_history .append(AIMessageMessage(content=response))