eShopLite: Don't checkout if no basket (#51)

Fixes #36
dotnet · Nov 29, 2023 · f304100 · f304100
1 parent ee04bd8
commit f304100
Showing 1 changed file with 7 additions and 10 deletions.
diff --git a/samples/eShopLite/eShopLite.Frontend/Components/Cart.razor b/samples/eShopLite/eShopLite.Frontend/Components/Cart.razor
@@ -9,7 +9,7 @@
                 <span class="fa-stack fa-lg cart-stack pa-4">
                     <i class="fa fa-shopping-cart fa-stack-4x"></i>
                     <i class="fa fa-stack-1x badge">
-                        @itemsInCart
+                        @(customerBasket?.TotalItemCount ?? 0)
                     </i>
                 </span>
             </button>
@@ -18,28 +18,25 @@
 </div>
 
 @code {
+    CustomerBasket? customerBasket;
     bool basketIsAvailable;
-    int itemsInCart = 0;
 
     [Parameter]
     public EventCallback<bool> BasketAvailabilityChanged { get; set; }
 
     protected override async Task OnInitializedAsync()
     {
-        var (basket, isAvailable) = await BasketClient.GetBasketAsync("user");
+        (customerBasket, basketIsAvailable) = await BasketClient.GetBasketAsync("user");
 
-        if (basket is not null)
-        {
-            itemsInCart = basket.TotalItemCount;
-        }
-
-        basketIsAvailable = isAvailable;
         await BasketAvailabilityChanged.InvokeAsync(basketIsAvailable);
     }
 
     private async Task HandleCheckout()
     {
-        await BasketClient.CheckoutBasketAsync("user");
+        if (customerBasket is not null)
+        {
+            await BasketClient.CheckoutBasketAsync("user");
+        }
 
         // Preserve query string
         Navigation.NavigateTo($"/{new Uri(Navigation.Uri).Query}");