public async void InitializeData()
        {
            try
            {
                IsLoading = true;
                var alertResult = await alertService.ShowAlertAsync(
                    "Would you like to display coffees list",
                    "Confirmation",
                    "Yes",
                    "No");

                if (alertResult)
                {
                    Coffees = await CoffeeService.GetCoffeesAsync();
                }
            }
            finally { IsLoading = false; }
        }
        public async Task <ActionResult> Get(CancellationToken ct)
        {
            var liste = await _coffeeService.GetCoffeesAsync(ct);

            return(Ok(liste));
        }