Update app.py

app.py

@@ -85,7 +85,13 @@ def main():
 
 def handle_userinput(user_question,vectorstore):
     Rag_chain = create_conversational_rag_chain()
-    response = Rag_chain({'question': user_question})
+    response = Rag_chain.invoke(
+    {"input": user_question "},
+    
+    config={
+        "configurable": {"session_id": "k"}
+    }, 
+)["answer"]
     st.session_state.chat_history = response['chat_history']
 
     for i, message in enumerate(st.session_state.chat_history):