Update app.py

app.py

@@ -42,9 +42,9 @@ def get_context_retriever_chain(vector_store):
     return retriever_chain
     
 
-def get_conversational_rag_chain(retriever_chain): 
+def get_conversational_rag_chain(retriever_chain,openai_apikey): 
     
-    llm = ChatOpenAI()
+    llm = ChatOpenAI(openai_api_key=openai_apikey)
     
     prompt = ChatPromptTemplate.from_messages([
       ("system", "Answer the user's questions based on the below context:\n\n{context}"),
@@ -56,9 +56,9 @@ def get_conversational_rag_chain(retriever_chain):
     
     return create_retrieval_chain(retriever_chain, stuff_documents_chain)
 
-def get_response(user_input):
+def get_response(user_input,openai_apikey):
     retriever_chain = get_context_retriever_chain(st.session_state.vector_store)
-    conversation_rag_chain = get_conversational_rag_chain(retriever_chain)
+    conversation_rag_chain = get_conversational_rag_chain(retriever_chain,openai_apikey)
     
     response = conversation_rag_chain.invoke({
         "chat_history": st.session_state.chat_history,
@@ -100,7 +100,7 @@ else:
     #user_input
     user_query = st.chat_input("Type your message here...")
     if user_query is not None and user_query !="":
-        response = get_response(user_query)
+        response = get_response(user_query,openai_apikey)
         st.session_state.chat_history.append(HumanMessage(content=user_query))
         st.session_state.chat_history.append(AIMessage(content=response))