public async Task <IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
Basket = BasketHelper.GetBasket(HttpContext.Session);
Fail = true;
return(Page());
}
Basket = BasketHelper.GetBasket(HttpContext.Session);
var userId = _um.GetUserId(User);
Order newOrder = _ds.CreateOrderFromBasket(Basket, userId, Shipping.Value, Payment.Value);
var orderId = _ds.SaveOrder(newOrder);
foreach (var item in Basket.Items)
{
await _ds.DecreaseProductStockAsync(item.ProductId, item.Quantity);
}
BasketHelper.ClearBasket(HttpContext.Session);
return(RedirectToPage("./CheckoutConfirm", new { orderid = orderId }));
}