feat(medusa): Modules initializer (#3352)

packages/inventory/src/initialize/index.ts

@@ -0,0 +1,24 @@
+import { IEventBusService, IInventoryService } from "@medusajs/medusa"
+import {
+  ExternalModuleDeclaration,
+  InternalModuleDeclaration,
+  MedusaModule,
+} from "@medusajs/modules-sdk"
+import { InventoryServiceInitializeOptions } from "../types"
+
+export const initialize = async (
+  options?: InventoryServiceInitializeOptions | ExternalModuleDeclaration,
+  injectedDependencies?: {
+    eventBusService: IEventBusService
+  }
+): Promise<IInventoryService> => {
+  const serviceKey = "inventoryService"
+  const loaded = await MedusaModule.bootstrap(
+    serviceKey,
+    "@medusajs/inventory",
+    options as InternalModuleDeclaration | ExternalModuleDeclaration,
+    injectedDependencies
+  )
+
+  return loaded[serviceKey] as IInventoryService
+}