Update app.py

app.py

@@ -31,6 +31,7 @@ import gspread
 import uuid
 from dotenv import load_dotenv
 import os
+from datetime import datetime
 
 # Load environment variables
 load_dotenv()
@@ -317,10 +318,11 @@ def run_streamlit_app():
                 logging.info(f"Generated response: {response.response}")
                 logging.info(f"Retrieved contexts: {[node.text for node in response.source_nodes]}")
             question_id = str(uuid.uuid4())
-            st.session_state.chat_history.append({'id': question_id, 'user': question, 'response': response.response, 'contexts': response.source_nodes, 'feedback': 0, 'detailed_feedback': ''})
+            timestamp = datetime.now().isoformat()
+            st.session_state.chat_history.append({'id': question_id, 'user': question, 'response': response.response, 'contexts': response.source_nodes, 'feedback': 0, 'detailed_feedback': '', 'timestamp': timestamp})
             
             # Log initial query and response to Google Sheets without feedback
-            log_to_google_sheets([question_id, question, response.response, selected_api, selected_model, embedding_model, retriever_method, chunk_size, top_k, 0, ""])
+            log_to_google_sheets([question_id, question, response.response, selected_api, selected_model, embedding_model, retriever_method, chunk_size, top_k, 0, "", timestamp])
             
             st.rerun()
         else: