feat(core-flows,medusa): Add customer validation on cart update (#9662)

integration-tests/http/__tests__/cart/store/cart.spec.ts

@@ -1,3 +1,4 @@
+import { medusaIntegrationTestRunner } from "@medusajs/test-utils"
 import {
   Modules,
   PriceListStatus,
@@ -6,39 +7,19 @@ import {
   PromotionRuleOperator,
   PromotionType,
 } from "@medusajs/utils"
-import { medusaIntegrationTestRunner } from "@medusajs/test-utils"
 import {
   createAdminUser,
   generatePublishableKey,
   generateStoreHeaders,
 } from "../../../../helpers/create-admin-user"
 import { setupTaxStructure } from "../../../../modules/__tests__/fixtures"
+import { createAuthenticatedCustomer } from "../../../../modules/helpers/create-authenticated-customer"
 
 jest.setTimeout(100000)
 
 const env = { MEDUSA_FF_MEDUSA_V2: true }
 const adminHeaders = { headers: { "x-medusa-access-token": "test_token" } }
 
-const generateStoreHeadersWithCustomer = async ({
-  api,
-  storeHeaders,
-  customer,
-}) => {
-  const registeredCustomerToken = (
-    await api.post("/auth/customer/emailpass/register", {
-      email: customer.email,
-      password: "password",
-    })
-  ).data.token
-
-  return {
-    headers: {
-      ...storeHeaders.headers,
-      authorization: `Bearer ${registeredCustomerToken}`,
-    },
-  }
-}
-
 const shippingAddressData = {
   address_1: "test address 1",
   address_2: "test address 2",
@@ -136,23 +117,20 @@ medusaIntegrationTestRunner({
         const publishableKey = await generatePublishableKey(appContainer)
         storeHeaders = generateStoreHeaders({ publishableKey })
 
-        customer = (
-          await api.post(
-            "/admin/customers",
-            {
-              first_name: "tony",
-              email: "[email protected]",
-            },
-            adminHeaders
-          )
-        ).data.customer
-
-        storeHeadersWithCustomer = await generateStoreHeadersWithCustomer({
-          storeHeaders,
-          api,
-          customer,
+        const result = await createAuthenticatedCustomer(appContainer, {
+          first_name: "tony",
+          last_name: "stark",
+          email: "[email protected]",
         })
 
+        customer = result.customer
+        storeHeadersWithCustomer = {
+          headers: {
+            ...storeHeaders.headers,
+            authorization: `Bearer ${result.jwt}`,
+          },
+        }
+
         await setupTaxStructure(appContainer.resolve(Modules.TAX))
 
         region = (
@@ -579,23 +557,23 @@ medusaIntegrationTestRunner({
       })
 
       describe("POST /store/carts/:id", () => {
-        let otherRegion
+        let otherRegion, cartWithCustomer
 
         beforeEach(async () => {
-          cart = (
-            await api.post(
-              `/store/carts`,
-              {
-                email: "[email protected]",
-                currency_code: "usd",
-                sales_channel_id: salesChannel.id,
-                region_id: region.id,
-                shipping_address: shippingAddressData,
-                items: [{ variant_id: product.variants[0].id, quantity: 1 }],
-                promo_codes: [promotion.code],
-              },
-              storeHeadersWithCustomer
-            )
+          const cartData = {
+            currency_code: "usd",
+            sales_channel_id: salesChannel.id,
+            region_id: region.id,
+            shipping_address: shippingAddressData,
+            items: [{ variant_id: product.variants[0].id, quantity: 1 }],
+            promo_codes: [promotion.code],
+          }
+
+          cart = (await api.post(`/store/carts`, cartData, storeHeaders)).data
+            .cart
+
+          cartWithCustomer = (
+            await api.post(`/store/carts`, cartData, storeHeadersWithCustomer)
           ).data.cart
 
           otherRegion = (
@@ -751,7 +729,7 @@ medusaIntegrationTestRunner({
         it("should not generate tax lines if automatic taxes is false", async () => {
           let updated = await api.post(
             `/store/carts/${cart.id}`,
-            { email: "[email protected]" },
+            {},
             storeHeaders
           )
 
@@ -776,7 +754,7 @@ medusaIntegrationTestRunner({
 
           updated = await api.post(
             `/store/carts/${cart.id}`,
-            { email: "[email protected]", region_id: noAutomaticRegion.id },
+            { region_id: noAutomaticRegion.id },
             storeHeaders
           )
 
@@ -1236,6 +1214,103 @@ medusaIntegrationTestRunner({
             })
           )
         })
+
+        it("should update email if cart customer_id is not set", async () => {
+          const updated = await api.post(
+            `/store/carts/${cart.id}`,
+            { email: "[email protected]" },
+            storeHeaders
+          )
+
+          expect(updated.status).toEqual(200)
+          expect(updated.data.cart).toEqual(
+            expect.objectContaining({
+              email: "[email protected]",
+              customer: expect.objectContaining({
+                email: "[email protected]",
+              }),
+            })
+          )
+        })
+
+        it("should update customer_id if cart customer_id if not already set", async () => {
+          const updated = await api.post(
+            `/store/carts/${cart.id}`,
+            { customer_id: customer.id },
+            storeHeadersWithCustomer
+          )
+
+          expect(updated.status).toEqual(200)
+          expect(updated.data.cart).toEqual(
+            expect.objectContaining({
+              email: customer.email,
+              customer: expect.objectContaining({
+                id: customer.id,
+                email: customer.email,
+              }),
+            })
+          )
+        })
+
+        it("should throw when trying to set customer_id if customer is not logged in", async () => {
+          const { response } = await api
+            .post(
+              `/store/carts/${cartWithCustomer.id}`,
+              { customer_id: customer.id },
+              storeHeaders
+            )
+            .catch((e) => e)
+
+          expect(response.status).toEqual(400)
+          expect(response.data.message).toEqual(
+            "auth_customer_id is required when customer_id is set"
+          )
+        })
+
+        it("should throw when trying to set customer_id if customer_id is already set", async () => {
+          const newCustomer = (
+            await api.post(
+              "/admin/customers",
+              {
+                first_name: "new tony",
+                email: "[email protected]",
+              },
+              adminHeaders
+            )
+          ).data.customer
+
+          const { response } = await api
+            .post(
+              `/store/carts/${cartWithCustomer.id}`,
+              { customer_id: newCustomer.id },
+              storeHeadersWithCustomer
+            )
+            .catch((e) => e)
+
+          expect(response.status).toEqual(400)
+          expect(response.data.message).toEqual(
+            "Cannot update cart customer when customer_id is set"
+          )
+        })
+
+        it("should update email when email is already set and customer is logged in", async () => {
+          const updated = await api.post(
+            `/store/carts/${cart.id}`,
+            { customer_id: customer.id },
+            storeHeadersWithCustomer
+          )
+
+          expect(updated.status).toEqual(200)
+          expect(updated.data.cart).toEqual(
+            expect.objectContaining({
+              email: customer.email,
+              customer: expect.objectContaining({
+                id: customer.id,
+                email: customer.email,
+              }),
+            })
+          )
+        })
       })
     })
   },

integration-tests/modules/helpers/create-authenticated-customer.ts

@@ -36,7 +36,7 @@ export const createAuthenticatedCustomer = async (
       actor_type: "customer",
       auth_identity_id: authIdentity.id,
     },
-    http.jwtSecret
+    http.jwtSecret!
   )
 
   return { customer, authIdentity, jwt: token }

packages/core/core-flows/src/cart/workflows/index.ts

@@ -8,5 +8,6 @@ export * from "./list-shipping-options-for-cart"
 export * from "./refresh-payment-collection"
 export * from "./update-cart"
 export * from "./update-cart-promotions"
+export * from "./update-cart-with-customer-validation"
 export * from "./update-line-item-in-cart"
 export * from "./update-tax-lines"

packages/core/core-flows/src/cart/workflows/update-cart-with-customer-validation.ts

@@ -0,0 +1,90 @@
+import {
+  AdditionalData,
+  UpdateCartWorkflowInputDTO,
+} from "@medusajs/framework/types"
+import { isDefined, isPresent, MedusaError } from "@medusajs/framework/utils"
+import {
+  createStep,
+  createWorkflow,
+  when,
+  WorkflowData,
+  WorkflowResponse,
+} from "@medusajs/framework/workflows-sdk"
+import { useRemoteQueryStep } from "../../common"
+import { updateCartWorkflow } from "./update-cart"
+
+/**
+ * This step validates rules of engagement when customer_id or email is
+ * requested to be updated.
+ */
+export const validateCartCustomerOrEmailStep = createStep(
+  "validate-cart-customer-or-email",
+  async function ({
+    input,
+    cart,
+  }: {
+    input: {
+      customer_id?: string | null
+      email?: string | null
+      auth_customer_id: string | undefined | null
+    }
+    cart: { customer_id: string | null; email: string | null }
+  }) {
+    if (isPresent(cart.customer_id) && cart.customer_id !== input.customer_id) {
+      throw new MedusaError(
+        MedusaError.Types.INVALID_DATA,
+        `Cannot update cart customer when customer_id is set`
+      )
+    }
+
+    if (isDefined(input.customer_id) && !isDefined(input.auth_customer_id)) {
+      throw new MedusaError(
+        MedusaError.Types.INVALID_DATA,
+        `auth_customer_id is required when customer_id is set`
+      )
+    }
+
+    const isInputCustomerIdDifferent =
+      input.auth_customer_id !== input.customer_id
+
+    if (isDefined(input.customer_id) && isInputCustomerIdDifferent) {
+      throw new MedusaError(
+        MedusaError.Types.INVALID_DATA,
+        `Cannot update cart customer_id to a different customer`
+      )
+    }
+  }
+)
+
+export const updateCartWorkflowWithCustomerValidationId =
+  "update-cart-with-customer-validation"
+/**
+ * This workflow wraps updateCartWorkflow with customer validations
+ */
+export const updateCartWorkflowWithCustomerValidation = createWorkflow(
+  updateCartWorkflowWithCustomerValidationId,
+  (
+    input: WorkflowData<
+      UpdateCartWorkflowInputDTO &
+        AdditionalData & { auth_customer_id: string | undefined }
+    >
+  ) => {
+    const cart = useRemoteQueryStep({
+      entry_point: "cart",
+      variables: { id: input.id },
+      fields: ["id", "customer_id", "email"],
+      list: false,
+      throw_if_key_not_found: true,
+    }).config({ name: "get-cart" })
+
+    when({ input }, ({ input }) => {
+      return !!input.customer_id || !!input.email
+    }).then(() => {
+      validateCartCustomerOrEmailStep({ input, cart })
+    })
+
+    const updatedCart = updateCartWorkflow.runAsStep({ input })
+
+    return new WorkflowResponse(updatedCart)
+  }
+)

packages/medusa/src/api/store/carts/[id]/route.ts

@@ -1,11 +1,15 @@
-import { updateCartWorkflow } from "@medusajs/core-flows"
+import { updateCartWorkflowWithCustomerValidation } from "@medusajs/core-flows"
 import {
   AdditionalData,
   HttpTypes,
   UpdateCartDataDTO,
 } from "@medusajs/framework/types"
 
-import { MedusaRequest, MedusaResponse } from "@medusajs/framework/http"
+import {
+  AuthenticatedMedusaRequest,
+  MedusaRequest,
+  MedusaResponse,
+} from "@medusajs/framework/http"
 import { refetchCart } from "../helpers"
 
 export const GET = async (
@@ -22,17 +26,15 @@ export const GET = async (
 }
 
 export const POST = async (
-  req: MedusaRequest<UpdateCartDataDTO & AdditionalData>,
-  res: MedusaResponse<{
-    cart: HttpTypes.StoreCart
-  }>
+  req: AuthenticatedMedusaRequest<UpdateCartDataDTO & AdditionalData>,
+  res: MedusaResponse<HttpTypes.StoreCartResponse>
 ) => {
-  const workflow = updateCartWorkflow(req.scope)
-
+  const workflow = updateCartWorkflowWithCustomerValidation(req.scope)
   await workflow.run({
     input: {
       ...req.validatedBody,
       id: req.params.id,
+      auth_customer_id: req.auth_context?.actor_id,
     },
   })
 

packages/medusa/src/api/store/carts/validators.ts

@@ -46,6 +46,7 @@ export const StoreRemoveCartPromotions = z
 export type StoreUpdateCartType = z.infer<typeof UpdateCart>
 export const UpdateCart = z
   .object({
+    customer_id: z.string().optional(),
     region_id: z.string().optional(),
     email: z.string().email().nullish(),
     billing_address: z.union([AddressPayload, z.string()]).optional(),