Update video_rag_routes.py

video_rag_routes.py

@@ -135,7 +135,7 @@ async def query_rag(body: QueryIn):
     if not sess:
         raise HTTPException(status_code=404, detail="Session not found")
     chain = create_chain(sess["retriever"])
-    result = chain({
+    result = chain.invoke({
         "question": body.query,
         "chat_history": sess["history"]
     })