Update app.py

app.py

@@ -6,8 +6,14 @@ from type.state_schema import RAGState
 
 api = FastAPI()
 
-# if __name__ == "__main__":
+
+
 @app.get("/")
+def greet_json():
+    return {"Hello": "World!"}
+
+# if __name__ == "__main__":
+@app.post("/")
 def rag_pipeline_graph():
     graph = get_rag_pipeline_graph()