feat: GET customer group endpoint

packages/medusa/src/api/routes/admin/customer-groups/__tests__/get-customer-group.ts

@@ -0,0 +1,27 @@
+import { IdMap } from "medusa-test-utils"
+import { request } from "../../../../../helpers/test-request"
+import { CustomerGroupServiceMock } from "../../../../../services/__mocks__/customer-group"
+
+describe("GET /customer-groups", () => {
+  let subject
+  const id = "123"
+
+  beforeAll(async () => {
+    subject = await request("GET", `/admin/customer-groups/${id}`, {
+      adminSession: {
+        jwt: {
+          userId: IdMap.getId("admin_user"),
+        },
+      },
+    })
+  })
+
+  it("returns 200", () => {
+    expect(subject.status).toEqual(200)
+  })
+
+  it("calls CustomerGroupService get", () => {
+    expect(CustomerGroupServiceMock.retrieve).toHaveBeenCalledTimes(1)
+    expect(CustomerGroupServiceMock.retrieve).toHaveBeenCalledWith(id)
+  })
+})

packages/medusa/src/api/routes/admin/customer-groups/get-customer-group.ts

@@ -0,0 +1,32 @@
+import { CustomerGroupService } from "../../../../services"
+
+/**
+ * @oas [get] /customer-group/{id}
+ * operationId: "GetCustomerGroups"
+ * summary: "Retrieve a CustomerGroup"
+ * description: "Retrieves a Customer Group."
+ * x-authenticated: true
+ * parameters:
+ *   - (path) id=* {string} The id of the Customer Group.
+ * tags:
+ *   - CustomerGroup
+ * responses:
+ *   200:
+ *     description: OK
+ *     content:
+ *       application/json:
+ *         schema:
+ *           properties:
+ *             customerGroup:
+ *               $ref: "#/components/schemas/customer-group"
+ */
+export default async (req, res) => {
+  const { id } = req.params
+  const customerGroupService: CustomerGroupService = req.scope.resolve(
+    "customerGroupService"
+  )
+
+  const customerGroup = await customerGroupService.retrieve(id)
+
+  res.json({ customerGroup })
+}

packages/medusa/src/api/routes/admin/customer-groups/index.ts

@@ -8,6 +8,7 @@ const route = Router()
 export default (app) => {
   app.use("/customer-groups", route)
 
+  route.get("/:id", middlewares.wrap(require("./get-customer-group").default))
   route.post("/", middlewares.wrap(require("./create-customer-group").default))
   return app
 }