Update app.py

app.py

@@ -4,10 +4,7 @@ from qabot import llm_chain
 
 app = FastAPI()
 
-class Query(BaseModel):
-    query: str
 
-@app.post("/ask")
-def ask_question(query: Query):
-    result = llm_chain.invoke({"query": query.query})
-    return {"answer": result["result"]}
+@app.get("/")
+def root():
+    return {"message": "FastAPI backend is running!"}