Update app.py

app.py

@@ -47,6 +47,16 @@ retriever = PineconeHybridSearchRetriever(
     embeddings=embed, sparse_encoder=splade_encoder, index=index
 )
 
+
+os.environ['LANGCHAIN_TRACING_V2'] = LANGCHAIN_TRACING_V2
+
+os.environ['LANGCHAIN_ENDPOINT'] = LANGCHAIN_ENDPOINT
+
+os.environ['LANGCHAIN_PROJECT'] = LANGCHAIN_PROJECT
+
+os.environ['LANGCHAIN_API_KEY'] = LANGCHAIN_API_KEY
+
+
 # ========== PART 4 ==========
 # RAG prompt
 template = """You are an expert in HiPerGator (University of Florida's Super Computer) who has access to it's dense documentation. Please use the given context from the documentation to happily assist the user with their question: