Fix: Add Customer id in generate line item for customer specific pricing (#1245)

* initial

* add logged in item to cart gets correct price

* customer id or cart_id customer id

* move customer_id to a config

* update unit test

* run pipelines

packages/medusa/src/api/routes/store/carts/__tests__/create-cart.js

@@ -101,12 +101,14 @@ describe("POST /store/carts", () => {
       expect(LineItemServiceMock.generate).toHaveBeenCalledWith(
         IdMap.getId("testVariant"),
         IdMap.getId("testRegion"),
-        3
+        3,
+        { customer_id: undefined }
       )
       expect(LineItemServiceMock.generate).toHaveBeenCalledWith(
         IdMap.getId("testVariant1"),
         IdMap.getId("testRegion"),
-        1
+        1,
+        { customer_id: undefined }
       )
       expect(CartServiceMock.addLineItem).toHaveBeenCalledTimes(2)
     })

packages/medusa/src/api/routes/store/carts/create-cart.ts

@@ -129,7 +129,9 @@ export default async (req, res) => {
         validated.items.map(async (i) => {
           const lineItem = await lineItemService
             .withTransaction(manager)
-            .generate(i.variant_id, regionId, i.quantity)
+            .generate(i.variant_id, regionId, i.quantity, {
+              customer_id: req.user?.customer_id,
+            })
           await cartService
             .withTransaction(manager)
             .addLineItem(cart.id, lineItem)

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

@@ -30,6 +30,7 @@ import { validator } from "../../../../utils/validator"
 export default async (req, res) => {
   const { id } = req.params
 
+  const customerId = req.user?.customer_id
   const validated = await validator(StorePostCartsCartLineItemsReq, req.body)
 
   const manager: EntityManager = req.scope.resolve("manager")
@@ -43,6 +44,7 @@ export default async (req, res) => {
     const line = await lineItemService
       .withTransaction(m)
       .generate(validated.variant_id, cart.region_id, validated.quantity, {
+        customer_id: customerId || cart.customer_id,
         metadata: validated.metadata,
       })
     await txCartService.addLineItem(id, line)