public async Task <Order> CreateOrder(string UserName, CartViewModel Cart, OrderViewModel OrderModel)
{
var create_order_model = new CreateOrderDTO
{
Items = Cart.ToDTO(),
Order = OrderModel,
};
var response = await PostAsync($"{Address}/{UserName}", create_order_model).ConfigureAwait(false);
var order_dto = await response.EnsureSuccessStatusCode().Content.ReadFromJsonAsync <OrderDTO>().ConfigureAwait(false);
return(order_dto.FromDTO());
}