feat(client): allow to add multiple cart items

api/shopware-6-client.api.md

@@ -16,6 +16,7 @@ import { CustomerAddress } from '@shopware-pwa/commons/interfaces/models/checkou
 import { CustomerRegistrationParams } from '@shopware-pwa/commons/interfaces/request/CustomerRegistrationParams';
 import { EntityResult } from '@shopware-pwa/commons/interfaces/response/EntityResult';
 import { Language } from '@shopware-pwa/commons/interfaces/models/framework/language/Language';
+import { LineItem } from '@shopware-pwa/commons/interfaces/models/checkout/cart/line-item/LineItem';
 import { Order } from '@shopware-pwa/commons/interfaces/models/checkout/order/Order';
 import { PageResolverProductResult } from '@shopware-pwa/commons/interfaces/models/content/cms/CmsPage';
 import { PageResolverResult } from '@shopware-pwa/commons/interfaces/models/content/cms/CmsPage';
@@ -32,6 +33,9 @@ import { ShopwareSearchParams } from '@shopware-pwa/commons/interfaces/search/Se
 import { StoreNavigationElement } from '@shopware-pwa/commons/interfaces/models/content/navigation/Navigation';
 import { StoreNavigationType } from '@shopware-pwa/commons/interfaces/models/content/navigation/Navigation';
 
+// @beta
+export function addCartItems(items: Partial<LineItem>[], contextInstance?: ShopwareApiInstance): Promise<any>;
+
 // @beta
 export function addProductReview(productId: string, productReviewData: {
     title: string;

docs/landing/resources/api/shopware-6-client.addcartitems.md

@@ -0,0 +1,32 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [@shopware-pwa/shopware-6-client](./shopware-6-client.md) &gt; [addCartItems](./shopware-6-client.addcartitems.md)
+
+## addCartItems() function
+
+> This API is provided as a preview for developers and may change based on feedback that we receive. Do not use this API in a production environment.
+> 
+
+Adds multiple items to the cart. Accepts every type of cart item.
+
+<b>Signature:</b>
+
+```typescript
+export declare function addCartItems(items: Partial<LineItem>[], contextInstance?: ShopwareApiInstance): Promise<any>;
+```
+
+## Parameters
+
+|  Parameter | Type | Description |
+|  --- | --- | --- |
+|  items | Partial&lt;LineItem&gt;\[\] |  |
+|  contextInstance | [ShopwareApiInstance](./shopware-6-client.shopwareapiinstance.md) |  |
+
+<b>Returns:</b>
+
+Promise&lt;any&gt;
+
+## Exceptions
+
+ClientApiError
+

docs/landing/resources/api/shopware-6-client.md

@@ -8,6 +8,7 @@
 
 |  Function | Description |
 |  --- | --- |
+|  [addCartItems(items, contextInstance)](./shopware-6-client.addcartitems.md) | <b><i>(BETA)</i></b> Adds multiple items to the cart. Accepts every type of cart item. |
 |  [addProductReview(productId, productReviewData, contextInstance)](./shopware-6-client.addproductreview.md) | <b><i>(BETA)</i></b> Add a review to specific product by its ID |
 |  [addProductToCart(productId, quantity, contextInstance)](./shopware-6-client.addproducttocart.md) | <b><i>(BETA)</i></b> TODO: https://github.com/vuestorefront/shopware-pwa/issues/1449<!-- -->Adds specific quantity of the product to the cart by productId. It creates a new cart line item.<!-- -->Warning: This method does not change the state of the cart in any way if productId already exists in a cart. For changing the quantity use addQuantityToCartLineItem() or changeCartLineItemQuantity() methods. |
 |  [addPromotionCode(promotionCode, contextInstance)](./shopware-6-client.addpromotioncode.md) | <b><i>(BETA)</i></b> Adds new promotion code to the cart by its code.<!-- -->Promotion code is being added as separate cart item line. |

packages/shopware-6-client/__tests__/services/CartService/addCartItems.spec.ts

@@ -0,0 +1,43 @@
+import { addCartItems } from "../../../src";
+import { defaultInstance } from "../../../src/apiService";
+
+jest.mock("../../../src/apiService");
+const mockedApiInstance = defaultInstance as jest.Mocked<
+  typeof defaultInstance
+>;
+
+describe("CartService - addCartItems", () => {
+  const mockedPost = jest.fn();
+  beforeEach(() => {
+    jest.resetAllMocks();
+    mockedApiInstance.invoke = {
+      post: mockedPost,
+    } as any;
+  });
+
+  it("should call valid endpoint and return a cart", async () => {
+    mockedPost.mockResolvedValueOnce({
+      data: {},
+    });
+
+    await addCartItems([
+      {
+        type: "product",
+      },
+      {
+        type: "credit",
+      },
+    ]);
+    expect(mockedPost).toBeCalledTimes(1);
+    expect(mockedPost).toBeCalledWith("/store-api/checkout/cart/line-item", {
+      items: [
+        {
+          type: "product",
+        },
+        {
+          type: "credit",
+        },
+      ],
+    });
+  });
+});

packages/shopware-6-client/src/services/cartService.ts

@@ -144,3 +144,24 @@ export async function addPromotionCode(
 
   return resp.data;
 }
+
+/**
+ * Adds multiple items to the cart.
+ * Accepts every type of cart item.
+ *
+ * @throws ClientApiError
+ * @beta
+ */
+export async function addCartItems(
+  items: Partial<LineItem>[],
+  contextInstance: ShopwareApiInstance = defaultInstance
+) {
+  const resp = await contextInstance.invoke.post(
+    getCheckoutCartLineItemEndpoint(),
+    {
+      items,
+    }
+  );
+
+  return resp.data;
+}