from fastapi import FastAPI, Request app = FastAPI( servers=[ {"url": "https://stag.example.com", "description": "Staging environment"}, {"url": "https://prod.example.com", "description": "Production environment"}, ], root_path="/api/v1", root_path_in_servers=False, ) @app.get("/app") def read_main(request: Request): return {"message": "Hello World", "root_path": request.scope.get("root_path")}