Update chatbot_rag.py

chatbot_rag.py

@@ -95,3 +95,17 @@ except Exception as e:
     print("❌ Failed to build QA pipeline")
     print("Error message:", str(e))
     traceback.print_exc()
+
+
+def get_answer(query: str) -> str:
+    """
+    Run a query against the QA pipeline and return the answer text.
+    """
+    if qa_pipeline is None:
+        return "⚠️ QA pipeline not initialized."
+    
+    try:
+        result = qa_pipeline.invoke(query)   # for LCEL chain
+        return result
+    except Exception as e:
+        return f"❌ QA run failed: {e}"