Update app.py

app.py

@@ -133,7 +133,7 @@ class BasicAgent:
         print(f"Agent received question (first 50 chars): {question[:50]}...")
         messages = [HumanMessage(content=f"{question}")]
 
-        messages = react_graph.invoke({"messages": messages})
+        messages = self.agent.invoke({"messages": messages})
         answer = f"{messages[-1].content}"
         print(f"Agent returning answer: {answer}")
         return answer