Is it possible to redirect route with async code?

[ashunasar]

I know it is a duplicate discussion but i checked the last discussion and i tried that method but it is showing me errors

A value of type 'RouteSettings' can't be returned from the method 'redirectDelegate' because it has a return type of 'Future<GetNavConfig?>'.

class AuthMiddleware extends GetMiddleware {
  @override
   Future<GetNavConfig?> redirectDelegate(GetNavConfig route) async{
    final AuthenticationApi _authService = AuthenticationApi();
    bool isUserAuthenticated = await _authService.isUserAuthenticated();
    return RouteSettings(name: isUserAuthenticated ? route : Navigation.login);
  }
}