feat(medusa-js, medusa-react): Support expand fields in order retrieval (#2353)

packages/medusa-js/src/resources/admin/orders.ts

@@ -16,6 +16,7 @@ import {
   AdminPostOrdersOrderSwapsSwapFulfillmentsReq,
   AdminPostOrdersOrderSwapsSwapShipmentsReq,
 } from "@medusajs/medusa"
+import { FindParams } from "@medusajs/medusa/dist/types/common"
 import qs from "qs"
 import { ResponsePromise } from "../../typings"
 import BaseResource from "../base"
@@ -32,9 +33,16 @@ class AdminOrdersResource extends BaseResource {
 
   retrieve(
     id: string,
+    query?: FindParams,
     customHeaders: Record<string, any> = {}
   ): ResponsePromise<AdminOrdersRes> {
-    const path = `/admin/orders/${id}`
+    let path = `/admin/orders/${id}`
+
+    if (query) {
+      const queryString = qs.stringify(query)
+      path = `/admin/orders/${id}?${queryString}`
+    }
+
     return this.client.request("GET", path, undefined, {}, customHeaders)
   }