public async Task<Order> CreateOrderAsync(string userId, ShoppingCart shoppingCart, Address shippingAddress,
                                                  Address billingAddress, PaymentMethod paymentMethod, ShippingMethod shippingMethod)
        {
            Order order = new Order
                {
                    UserId = userId,
                    ShoppingCart = shoppingCart,
                    ShippingAddress = shippingAddress,
                    BillingAddress = billingAddress,
                    PaymentMethod = paymentMethod,
                    ShippingMethod = shippingMethod
                };

            order.Id = await _orderService.CreateOrderAsync(order, _accountService.ServerCookieHeader);

            return order;
        }
 public Task<Order> CreateOrderAsync(string userId, ShoppingCart shoppingCart, Address shippingAddress, Address billingAddress, PaymentMethod paymentMethod, ShippingMethod shippingMethod)
 {
     return CreateOrderAsyncDelegate(userId, shoppingCart, shippingAddress, billingAddress, paymentMethod, shippingMethod);
 }