public async Task <List <Card> > GetCards()
{
try
{
string json = await _client.get_cards(App.GetUser().login);
return(JsonConvert.DeserializeObject <List <Card> >(json));
}
catch (Exception ex)
{
await Application.Current.MainPage.DisplayAlert("Ошибка", "Нет связи с сервером", "Ок");
return(new List <Card>());
}
}