Multiple currencies support, endpoint for currency change

examples/DancingGoat-K13Ecommerce/Controllers/TestController.cs

@@ -1,11 +1,12 @@
-using Kentico.Xperience.K13Ecommerce.StoreApi;
+using Kentico.Xperience.K13Ecommerce.ShoppingCart;
+using Kentico.Xperience.K13Ecommerce.StoreApi;
 
 using Microsoft.AspNetCore.Mvc;
 
 namespace DancingGoat.Controllers;
 #if DEBUG
 [Route("[controller]/[action]")]
-public class TestController(IKenticoStoreApiClient storeApiClient) : Controller
+public class TestController(IKenticoStoreApiClient storeApiClient, IShoppingService shoppingService) : Controller
 {
     public async Task<IActionResult> TestProducts()
     {
@@ -18,5 +19,11 @@ public async Task<IActionResult> TestCart()
         var cart = await storeApiClient.GetCurrentCartContentAsync();
         return Ok(cart);
     }
+
+    public async Task<IActionResult> TestSetCurrency(string currencyCode)
+    {
+        await shoppingService.SetCurrency(currencyCode);
+        return await TestCart();
+    }
 }
 #endif

src/Kentico.Xperience.K13Ecommerce/ShoppingCart/IShoppingService.cs

@@ -3,7 +3,7 @@
 namespace Kentico.Xperience.K13Ecommerce.ShoppingCart;
 
 /// <summary>
-/// Provides interface for integration with shopping cart K13 (communicate via store api)
+/// Provides interface for integration with shopping cart on K13 (communicates via store api)
 /// </summary>
 public interface IShoppingService
 {
@@ -160,4 +160,12 @@ public interface IShoppingService
     /// </summary>
     /// <returns></returns>
     Task<ICollection<KShoppingCartItemValidationError>> ValidateShoppingCartItems();
+
+
+    /// <summary>
+    /// Set currency to cart when currency is different than previous
+    /// </summary>
+    /// <param name="currencyCode"></param>
+    /// <returns></returns>
+    Task SetCurrency(string currencyCode);
 }

src/Kentico.Xperience.K13Ecommerce/ShoppingCart/ShoppingService.cs

@@ -242,6 +242,10 @@ public async Task<ICollection<KShoppingCartItemValidationError>> ValidateShoppin
         (await ProcessAction(async () => await storeApiClient.ValidateCartItemsAsync(ShoppingCartGuid))).Value!;
 
 
+    public async Task SetCurrency(string currencyCode) => await ProcessAction(
+        async () => await storeApiClient.SetCurrencyAsync(ShoppingCartGuid, currencyCode));
+
+
     protected virtual async Task<TResponse> ProcessAction<TResponse>(Func<Task<TResponse>> func,
         bool cartMustBeStored = false, bool clearCaches = true)
         where TResponse : IShoppingCartIdentifier