AdventureWorks.WebServices.Controllers.ShoppingCartController.RemoveProductFromShoppingCart C# (CSharp) Method

        public void RemoveProductFromShoppingCart(string id, string productIdToDecrement)
        {
            lock (_lock)
            {
                var product = _productRepository.GetProducts().FirstOrDefault(c => c.ProductNumber == productIdToDecrement);
                if (product == null)
                {
                    throw new HttpResponseException(HttpStatusCode.NotFound);
                }

                if (!_shoppingCartRepository.RemoveProductFromCart(id, productIdToDecrement))
                {
                    throw new HttpResponseException(HttpStatusCode.NotFound);
                }
            }
        }