public async Task <IActionResult> Index()
        {
            if (User.IsInRole("Admin"))
            {
                return(View(await _bookListService.GetAll()));
            }

            string userId = User.FindFirst(ClaimTypes.NameIdentifier).Value;

            return(View(await _bookListService.GetAllByOwner(userId)));
        }
 public ActionResult Index()
 {
     service.Load();
     return(View(service.GetAll()));
 }