public async Task <ActionResult> CartJson()
{
EnsureThatCartExist();
await _cartBuilder.EvaluatePromotionsAsync();
await _cartValidator.ValidateAsync(_cartBuilder.Cart);
return(Json(_cartBuilder.Cart, JsonRequestBehavior.AllowGet));
}
public async Task <ActionResult> ValidateCoupon([FromBody] Coupon coupon)
{
EnsureCartExists();
//Need lock to prevent concurrent access to same cart
using (await AsyncLock.GetLockByKey(WorkContext.CurrentCart.Value.GetCacheKey()).LockAsync())
{
await _cartBuilder.TakeCartAsync(WorkContext.CurrentCart.Value.Clone() as ShoppingCart);
_cartBuilder.Cart.Coupons = new[] { coupon };
await _cartBuilder.EvaluatePromotionsAsync();
return(Ok(coupon));
}
}