Update app.py

app.py

@@ -105,7 +105,7 @@ import streamlit as st
 from tempfile import NamedTemporaryFile
 
 # Initialize Groq client
-client = Groq(api_key=os.environ.get("Groq_api_key"))
+client = Groq(api_key=os.getenv("Groq_api_key"))
 
 # Function to extract text from a PDF
 def extract_text_from_pdf(pdf_file_path):
@@ -182,6 +182,7 @@ if uploaded_file:
         # Append query and response to the chat history
         st.session_state.chat_history.append({"query": user_query, "response": response})
 
-        # Refresh the app without needing manual rerun
-        st.experimental_set_query_params(rerun="true")
+        # Update query parameters to trigger a soft refresh
+        st.query_params["chat_length"] = len(st.session_state.chat_history)
+