Fix(medusa): Return correct region count (#4514)

* update method for listing regions

* add changeset

* fix unit tests

* fix nit

---------

Co-authored-by: Oliver Windall Juhl <59018053+olivermrbl@users.noreply.github.com>

packages/medusa/src/api/routes/admin/regions/__tests__/list-regions.js

@@ -1,6 +1,6 @@
 import { IdMap } from "medusa-test-utils"
-import { request } from "../../../../../helpers/test-request"
 import { RegionServiceMock } from "../../../../../services/__mocks__/region"
+import { request } from "../../../../../helpers/test-request"
 
 const defaultFields = [
   "id",
@@ -46,8 +46,8 @@ describe("GET /admin/regions", () => {
     })
 
     it("calls service list", () => {
-      expect(RegionServiceMock.list).toHaveBeenCalledTimes(1)
-      expect(RegionServiceMock.list).toHaveBeenCalledWith(
+      expect(RegionServiceMock.listAndCount).toHaveBeenCalledTimes(1)
+      expect(RegionServiceMock.listAndCount).toHaveBeenCalledWith(
         {},
         {
           select: defaultFields,
@@ -81,8 +81,8 @@ describe("GET /admin/regions", () => {
     })
 
     it("calls service list", () => {
-      expect(RegionServiceMock.list).toHaveBeenCalledTimes(1)
-      expect(RegionServiceMock.list).toHaveBeenCalledWith(
+      expect(RegionServiceMock.listAndCount).toHaveBeenCalledTimes(1)
+      expect(RegionServiceMock.listAndCount).toHaveBeenCalledWith(
         {},
         {
           select: defaultFields,

packages/medusa/src/api/routes/admin/regions/list-regions.ts

@@ -105,14 +105,14 @@ export default async (req, res) => {
     take: validated.limit,
   }
 
-  const regions: Region[] = await regionService.list(
+  const [regions, count] = await regionService.listAndCount(
     _.pickBy(filterableFields, identity),
     listConfig
   )
 
   res.json({
     regions,
-    count: regions.length,
+    count,
     offset: validated.offset,
     limit: validated.limit,
   })