feat(medusa): Add metadata to StorePostCartsCartLineItemsItemReq (#4230)

packages/generated/client-types/src/lib/models/StorePostCartsCartLineItemsItemReq.ts

@@ -8,4 +8,8 @@ export interface StorePostCartsCartLineItemsItemReq {
    * The quantity to set the Line Item to.
    */
   quantity: number
+  /**
+   * An optional key-value map with additional details about the Line Item. If omitted, the metadata will remain unchanged."
+   */
+  metadata?: Record<string, any>
 }

packages/medusa/src/api/routes/store/carts/__tests__/update-line-item.js

@@ -73,7 +73,7 @@ describe("POST /store/carts/:id/line-items/:line_id", () => {
       jest.clearAllMocks()
     })
 
-    it("calls CartService create", () => {
+    it("calls CartService removeLineItem", () => {
       expect(CartServiceMock.removeLineItem).toHaveBeenCalledTimes(1)
       expect(CartServiceMock.removeLineItem).toHaveBeenCalledWith(
         IdMap.getId("fr-cart"),
@@ -89,4 +89,142 @@ describe("POST /store/carts/:id/line-items/:line_id", () => {
       expect(subject.body.cart.id).toEqual(IdMap.getId("fr-cart"))
     })
   })
+
+  describe("updates metadata if included in request body", () => {
+    let subject
+
+    beforeAll(async () => {
+      const cartId = IdMap.getId("fr-cart")
+      const lineId = IdMap.getId("existingLine")
+      subject = await request(
+        "POST",
+        `/store/carts/${cartId}/line-items/${lineId}`,
+        {
+          payload: {
+            quantity: 3,
+            metadata: {
+              potato: "tomato",
+            },
+          },
+        }
+      )
+    })
+
+    afterAll(() => {
+      jest.clearAllMocks()
+    })
+
+    it("calls CartService updateLineItem", () => {
+      expect(CartServiceMock.updateLineItem).toHaveBeenCalledTimes(1)
+      expect(CartServiceMock.updateLineItem).toHaveBeenCalledWith(
+        IdMap.getId("fr-cart"),
+        IdMap.getId("existingLine"),
+        {
+          metadata: {
+            potato: "tomato",
+          },
+          quantity: 3,
+          region_id: expect.any(String),
+          variant_id: expect.any(String),
+        }
+      )
+    })
+
+    it("returns 200", () => {
+      expect(subject.status).toEqual(200)
+    })
+
+    it("returns the cart", () => {
+      expect(subject.body.cart.id).toEqual(IdMap.getId("fr-cart"))
+    })
+  })
+
+  describe("uses empty metadata if no metadata in request body", () => {
+    let subject
+
+    beforeAll(async () => {
+      const cartId = IdMap.getId("cartLineItemMetadata")
+      const lineId = IdMap.getId("lineWithMetadata")
+      subject = await request(
+        "POST",
+        `/store/carts/${cartId}/line-items/${lineId}`,
+        {
+          payload: {
+            quantity: 3,
+          },
+        }
+      )
+    })
+
+    afterAll(() => {
+      jest.clearAllMocks()
+    })
+
+    it("calls CartService updateLineItem", () => {
+      expect(CartServiceMock.updateLineItem).toHaveBeenCalledTimes(1)
+      expect(CartServiceMock.updateLineItem).toHaveBeenCalledWith(
+        IdMap.getId("cartLineItemMetadata"),
+        IdMap.getId("lineWithMetadata"),
+        {
+          metadata: {},
+          quantity: 3,
+          region_id: expect.any(String),
+          variant_id: expect.any(String),
+        }
+      )
+    })
+
+    it("returns 200", () => {
+      expect(subject.status).toEqual(200)
+    })
+
+    it("returns the cart", () => {
+      expect(subject.body.cart.id).toEqual(IdMap.getId("cartLineItemMetadata"))
+    })
+  })
+
+  describe("uses metadata if in request body", () => {
+    let subject
+
+    beforeAll(async () => {
+      const cartId = IdMap.getId("cartLineItemMetadata")
+      const lineId = IdMap.getId("lineWithMetadata")
+      subject = await request(
+        "POST",
+        `/store/carts/${cartId}/line-items/${lineId}`,
+        {
+          payload: {
+            quantity: 3,
+            metadata: { test: "this" },
+          },
+        }
+      )
+    })
+
+    afterAll(() => {
+      jest.clearAllMocks()
+    })
+
+    it("calls CartService updateLineItem", () => {
+      expect(CartServiceMock.updateLineItem).toHaveBeenCalledTimes(1)
+      expect(CartServiceMock.updateLineItem).toHaveBeenCalledWith(
+        IdMap.getId("cartLineItemMetadata"),
+        IdMap.getId("lineWithMetadata"),
+        {
+          metadata: { test: "this" },
+          quantity: 3,
+          region_id: expect.any(String),
+          variant_id: expect.any(String),
+        }
+      )
+    })
+
+    it("returns 200", () => {
+      expect(subject.status).toEqual(200)
+    })
+
+    it("returns the cart", () => {
+      expect(subject.body.cart.id).toEqual(IdMap.getId("cartLineItemMetadata"))
+    })
+  })
 })

packages/medusa/src/api/routes/store/carts/update-line-item.ts

@@ -1,4 +1,4 @@
-import { IsInt } from "class-validator"
+import { IsInt, IsOptional } from "class-validator"
 import { MedusaError } from "medusa-core-utils"
 import { EntityManager } from "typeorm"
 import { defaultStoreCartFields, defaultStoreCartRelations } from "."
@@ -89,7 +89,7 @@ export default async (req, res) => {
         variant_id: existing.variant.id,
         region_id: cart.region_id,
         quantity: validated.quantity,
-        metadata: existing.metadata || {},
+        metadata: validated.metadata || {},
       }
 
       await cartService
@@ -124,8 +124,14 @@ export default async (req, res) => {
  *   quantity:
  *     type: number
  *     description: The quantity to set the Line Item to.
+ *   metadata:
+ *     type: object
+ *     description: An optional key-value map with additional details about the Line Item. If omitted, the metadata will remain unchanged."
  */
 export class StorePostCartsCartLineItemsItemReq {
   @IsInt()
   quantity: number
+
+  @IsOptional()
+  metadata?: Record<string, unknown> | undefined
 }