feat(medusa,event-bus-local,event-bus-redis): Event Bus modules (#2599)

.changeset/three-pans-knock.md

@@ -0,0 +1,8 @@
+---
+"@medusajs/medusa": minor
+"medusa-react": patch
+"@medusajs/event-bus-local": minor
+"@medusajs/event-bus-redis": minor
+---
+
+feat(medusa,event-bus-local,event-bus-redis): Event Bus module (Redis + Local)

.eslintignore

@@ -10,6 +10,8 @@ packages/*
 !packages/admin-ui
 !packages/admin
 !packages/medusa-payment-stripe
+!packages/event-bus-redis
+!packages/event-bus-local
 
 
 

.eslintrc.js

@@ -83,6 +83,8 @@ module.exports = {
         project: [
           "./packages/medusa/tsconfig.json",
           "./packages/medusa-payment-stripe/tsconfig.spec.json",
+          "./packages/event-bus-local/tsconfig.spec.json",
+          "./packages/event-bus-redis/tsconfig.spec.json",
           "./packages/admin-ui/tsconfig.json",
         ],
       },

integration-tests/api/__tests__/batch-jobs/__snapshots__/api.js.snap

@@ -1,83 +0,0 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
-
-exports[`/admin/batch-jobs GET /admin/batch-jobs lists batch jobs created by the user 1`] = `
-Object {
-  "batch_jobs": Array [
-    Object {
-      "canceled_at": null,
-      "completed_at": "2022-06-27T22:00:00.000Z",
-      "confirmed_at": null,
-      "context": Object {},
-      "created_at": Any<String>,
-      "created_by": "admin_user",
-      "deleted_at": null,
-      "dry_run": false,
-      "failed_at": null,
-      "id": "job_5",
-      "pre_processed_at": null,
-      "processing_at": null,
-      "result": null,
-      "status": "completed",
-      "type": "product-export",
-      "updated_at": Any<String>,
-    },
-    Object {
-      "canceled_at": null,
-      "completed_at": null,
-      "confirmed_at": null,
-      "context": Object {},
-      "created_at": Any<String>,
-      "created_by": "admin_user",
-      "deleted_at": null,
-      "dry_run": false,
-      "failed_at": null,
-      "id": "job_3",
-      "pre_processed_at": null,
-      "processing_at": null,
-      "result": null,
-      "status": "created",
-      "type": "product-export",
-      "updated_at": Any<String>,
-    },
-    Object {
-      "canceled_at": null,
-      "completed_at": null,
-      "confirmed_at": null,
-      "context": Object {},
-      "created_at": Any<String>,
-      "created_by": "admin_user",
-      "deleted_at": null,
-      "dry_run": false,
-      "failed_at": null,
-      "id": "job_2",
-      "pre_processed_at": null,
-      "processing_at": null,
-      "result": null,
-      "status": "created",
-      "type": "product-export",
-      "updated_at": Any<String>,
-    },
-    Object {
-      "canceled_at": null,
-      "completed_at": null,
-      "confirmed_at": null,
-      "context": Object {},
-      "created_at": Any<String>,
-      "created_by": "admin_user",
-      "deleted_at": null,
-      "dry_run": false,
-      "failed_at": null,
-      "id": "job_1",
-      "pre_processed_at": null,
-      "processing_at": null,
-      "result": null,
-      "status": "created",
-      "type": "product-export",
-      "updated_at": Any<String>,
-    },
-  ],
-  "count": 4,
-  "limit": 10,
-  "offset": 0,
-}
-`;

integration-tests/api/__tests__/batch-jobs/api.js

@@ -84,34 +84,36 @@ describe("/admin/batch-jobs", () => {
 
       expect(response.status).toEqual(200)
       expect(response.data.batch_jobs.length).toEqual(4)
-      expect(response.data).toMatchSnapshot({
-        batch_jobs: [
-          {
-            id: "job_5",
-            created_at: expect.any(String),
-            updated_at: expect.any(String),
-            created_by: "admin_user",
-          },
-          {
-            id: "job_3",
-            created_at: expect.any(String),
-            updated_at: expect.any(String),
-            created_by: "admin_user",
-          },
-          {
-            id: "job_2",
-            created_at: expect.any(String),
-            updated_at: expect.any(String),
-            created_by: "admin_user",
-          },
-          {
-            id: "job_1",
-            created_at: expect.any(String),
-            updated_at: expect.any(String),
-            created_by: "admin_user",
-          },
-        ],
-      })
+      expect(response.data).toEqual(
+        expect.objectContaining({
+          batch_jobs: expect.arrayContaining([
+            expect.objectContaining({
+              id: "job_5",
+              created_at: expect.any(String),
+              updated_at: expect.any(String),
+              created_by: "admin_user",
+            }),
+            expect.objectContaining({
+              id: "job_3",
+              created_at: expect.any(String),
+              updated_at: expect.any(String),
+              created_by: "admin_user",
+            }),
+            expect.objectContaining({
+              id: "job_2",
+              created_at: expect.any(String),
+              updated_at: expect.any(String),
+              created_by: "admin_user",
+            }),
+            expect.objectContaining({
+              id: "job_1",
+              created_at: expect.any(String),
+              updated_at: expect.any(String),
+              created_by: "admin_user",
+            }),
+          ]),
+        })
+      )
     })
 
     it("lists batch jobs created by the user and where completed_at is null ", async () => {
@@ -214,8 +216,6 @@ describe("/admin/batch-jobs", () => {
           created_by: "admin_user",
           status: "created",
           id: expect.any(String),
-          created_at: expect.any(String),
-          updated_at: expect.any(String),
         })
       )
     })
@@ -264,28 +264,6 @@ describe("/admin/batch-jobs", () => {
       await db.teardown()
     })
 
-    it("Cancels batch job created by the user", async () => {
-      const api = useApi()
-
-      const jobId = "job_1"
-
-      const response = await api.post(
-        `/admin/batch-jobs/${jobId}/cancel`,
-        {},
-        adminReqConfig
-      )
-
-      expect(response.status).toEqual(200)
-      expect(response.data.batch_job).toEqual(
-        expect.objectContaining({
-          created_at: expect.any(String),
-          updated_at: expect.any(String),
-          canceled_at: expect.any(String),
-          status: "canceled",
-        })
-      )
-    })
-
     it("Fails to cancel a batch job created by a different user", async () => {
       expect.assertions(3)
       const api = useApi()
@@ -319,5 +297,27 @@ describe("/admin/batch-jobs", () => {
           )
         })
     })
+
+    it("Cancels batch job created by the user", async () => {
+      const api = useApi()
+
+      const jobId = "job_1"
+
+      const response = await api.post(
+        `/admin/batch-jobs/${jobId}/cancel`,
+        {},
+        adminReqConfig
+      )
+
+      expect(response.status).toEqual(200)
+      expect(response.data.batch_job).toEqual(
+        expect.objectContaining({
+          created_at: expect.any(String),
+          updated_at: expect.any(String),
+          canceled_at: expect.any(String),
+          status: "canceled",
+        })
+      )
+    })
   })
 })

integration-tests/api/__tests__/batch-jobs/order/export.js

@@ -29,7 +29,6 @@ describe("Batchjob with type order-export", () => {
     dbConnection = await initDb({ cwd })
     medusaProcess = await setupServer({
       cwd,
-      redisUrl: "redis://127.0.0.1:6379",
       uploadDir: __dirname,
     })
   })

integration-tests/api/__tests__/batch-jobs/price-list/import.js

@@ -64,7 +64,6 @@ describe("Price list import batch job", () => {
 
     medusaProcess = await setupServer({
       cwd,
-      redisUrl: "redis://127.0.0.1:6379",
       uploadDir: __dirname,
     })
   })

integration-tests/api/__tests__/batch-jobs/product/export.js

@@ -30,7 +30,6 @@ describe("Batch job of product-export type", () => {
     dbConnection = await initDb({ cwd })
     medusaProcess = await setupServer({
       cwd,
-      redisUrl: "redis://127.0.0.1:6379",
       uploadDir: __dirname,
     })
   })

integration-tests/api/__tests__/batch-jobs/product/ff-sales-channel.js

@@ -8,7 +8,9 @@ const adminSeeder = require("../../../helpers/admin-seeder")
 const userSeeder = require("../../../helpers/user-seeder")
 const { simpleSalesChannelFactory } = require("../../../factories")
 const batchJobSeeder = require("../../../helpers/batch-job-seeder")
-const { simpleProductCollectionFactory } = require("../../../factories/simple-product-collection-factory");
+const {
+  simpleProductCollectionFactory,
+} = require("../../../factories/simple-product-collection-factory")
 
 const startServerWithEnvironment =
   require("../../../../helpers/start-server-with-environment").default
@@ -52,7 +54,7 @@ describe("Product import - Sales Channel", () => {
   let dbConnection
   let medusaProcess
 
-  let collectionHandle1 = "test-collection1"
+  const collectionHandle1 = "test-collection1"
 
   beforeAll(async () => {
     const cwd = path.resolve(path.join(__dirname, "..", "..", ".."))
@@ -62,7 +64,6 @@ describe("Product import - Sales Channel", () => {
     const [process, connection] = await startServerWithEnvironment({
       cwd,
       env: { MEDUSA_FF_SALES_CHANNELS: true },
-      redisUrl: "redis://127.0.0.1:6379",
       uploadDir: __dirname,
     })
     dbConnection = connection
@@ -90,7 +91,7 @@ describe("Product import - Sales Channel", () => {
         name: "Import Sales Channel 2",
       })
       await simpleProductCollectionFactory(dbConnection, {
-        handle: collectionHandle1
+        handle: collectionHandle1,
       })
     } catch (e) {
       console.log(e)
@@ -169,8 +170,8 @@ describe("Product import - Sales Channel", () => {
           }),
         ],
         collection: expect.objectContaining({
-          handle: collectionHandle1
-        })
+          handle: collectionHandle1,
+        }),
       }),
     ])
   })

integration-tests/api/__tests__/batch-jobs/product/import.js

@@ -63,7 +63,6 @@ describe("Product import batch job", () => {
 
     medusaProcess = await setupServer({
       cwd,
-      redisUrl: "redis://127.0.0.1:6379",
       uploadDir: __dirname,
     })
   })
@@ -81,7 +80,7 @@ describe("Product import batch job", () => {
     await batchJobSeeder(dbConnection)
     await adminSeeder(dbConnection)
     await userSeeder(dbConnection)
-     await simpleProductCollectionFactory(dbConnection, [
+    await simpleProductCollectionFactory(dbConnection, [
       {
         handle: collectionHandle1,
       },

integration-tests/api/package.json

@@ -10,6 +10,7 @@
   },
   "dependencies": {
     "@medusajs/cache-inmemory": "*",
+    "@medusajs/event-bus-local": "*",
     "@medusajs/medusa": "*",
     "faker": "^5.5.3",
     "medusa-interfaces": "*",

integration-tests/api/src/services/local-file-service.js

@@ -1,8 +1,8 @@
 import { AbstractFileService } from "@medusajs/medusa"
-import stream from "stream"
-import { resolve } from "path"
 import * as fs from "fs"
 import mkdirp from "mkdirp"
+import { resolve } from "path"
+import stream from "stream"
 
 export default class LocalFileService extends AbstractFileService {
   constructor({}, options) {

integration-tests/plugins/package.json

@@ -10,6 +10,7 @@
   },
   "dependencies": {
     "@medusajs/cache-inmemory": "*",
+    "@medusajs/event-bus-local": "*",
     "@medusajs/medusa": "*",
     "faker": "^5.5.3",
     "medusa-fulfillment-webshipper": "*",

packages/event-bus-local/.gitignore

@@ -0,0 +1,6 @@
+/dist
+node_modules
+.DS_store
+.env*
+.env
+*.sql

packages/event-bus-local/README.md

@@ -0,0 +1,63 @@
+<p align="center">
+  <a href="https://www.medusajs.com">
+    <img alt="Medusa" src="https://user-images.githubusercontent.com/7554214/153162406-bf8fd16f-aa98-4604-b87b-e13ab4baf604.png" width="100" />
+  </a>
+</p>
+<h1 align="center">
+  @medusajs/event-bus-local
+</h1>
+
+<h4 align="center">
+  <a href="https://docs.medusajs.com">Documentation</a> |
+  <a href="https://www.medusajs.com">Website</a>
+</h4>
+
+<p align="center">
+An open source composable commerce engine built for developers.
+</p>
+<p align="center">
+  <a href="https://github.com/medusajs/medusa/blob/master/LICENSE">
+    <img src="https://img.shields.io/badge/license-MIT-blue.svg" alt="Medusa is released under the MIT license." />
+  </a>
+  <a href="https://circleci.com/gh/medusajs/medusa">
+    <img src="https://circleci.com/gh/medusajs/medusa.svg?style=shield" alt="Current CircleCI build status." />
+  </a>
+  <a href="https://github.com/medusajs/medusa/blob/master/CONTRIBUTING.md">
+    <img src="https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat" alt="PRs welcome!" />
+  </a>
+    <a href="https://www.producthunt.com/posts/medusa"><img src="https://img.shields.io/badge/Product%20Hunt-%231%20Product%20of%20the%20Day-%23DA552E" alt="Product Hunt"></a>
+  <a href="https://discord.gg/xpCwq3Kfn8">
+    <img src="https://img.shields.io/badge/chat-on%20discord-7289DA.svg" alt="Discord Chat" />
+  </a>
+  <a href="https://twitter.com/intent/follow?screen_name=medusajs">
+    <img src="https://img.shields.io/twitter/follow/medusajs.svg?label=Follow%20@medusajs" alt="Follow @medusajs" />
+  </a>
+</p>
+
+## Overview
+
+Local Event Bus module for Medusa. When installed, the events system of Medusa is powered by the Node EventEmitter. This module installed by default in new (> v1.8.0) Medusa projects.
+
+The Node EventEmitter is limited to a single process environment. We generally recommend using the `@medusajs/event-bus-redis` module in a production environment. 
+
+## Getting started
+
+Install the module:
+
+```bash
+yarn add @medusajs/event-bus-local
+```
+
+You don't need to add the module to your project configuration as it is the default one. Medusa will try to use it, if no other event buses are installed. 
+
+```js
+module.exports = {
+  // ...
+  modules: [ ... ],
+  // ...
+}
+```
+
+## Configuration
+
+The module comes with no configuration options.

packages/event-bus-local/jest.config.js

@@ -0,0 +1,13 @@
+module.exports = {
+  globals: {
+    "ts-jest": {
+      tsConfig: "tsconfig.spec.json",
+      isolatedModules: false,
+    },
+  },
+  transform: {
+    "^.+\\.[jt]s?$": "ts-jest",
+  },
+  testEnvironment: `node`,
+  moduleFileExtensions: [`js`, `jsx`, `ts`, `tsx`, `json`],
+}

packages/event-bus-local/package.json

@@ -0,0 +1,37 @@
+{
+  "name": "@medusajs/event-bus-local",
+  "version": "0.1.0",
+  "description": "Local Event Bus Module for Medusa",
+  "main": "dist/index.js",
+  "files": [
+    "dist"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/medusajs/medusa",
+    "directory": "packages/event-bus-local"
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "author": "Medusa",
+  "license": "MIT",
+  "devDependencies": {
+    "@medusajs/types": "^0.0.1",
+    "cross-env": "^5.2.1",
+    "jest": "^25.5.2",
+    "ts-jest": "^25.5.1",
+    "typescript": "^4.4.4"
+  },
+  "scripts": {
+    "watch": "tsc --build --watch",
+    "prepare": "cross-env NODE_ENV=production yarn run build",
+    "build": "tsc --build",
+    "test": "jest --passWithNoTests",
+    "test:unit": "jest --passWithNoTests"
+  },
+  "dependencies": {
+    "@medusajs/modules-sdk": "*",
+    "@medusajs/utils": "^0.0.1"
+  }
+}

packages/event-bus-local/src/index.ts

@@ -0,0 +1,13 @@
+import { ModuleExports } from "@medusajs/modules-sdk"
+import Loader from "./loaders"
+import LocalEventBus from "./services/event-bus-local"
+
+export const service = LocalEventBus
+export const loaders = [Loader]
+
+const moduleDefinition: ModuleExports = {
+  service,
+  loaders,
+}
+
+export default moduleDefinition

packages/event-bus-local/src/loaders/index.ts

@@ -0,0 +1,8 @@
+import { LoaderOptions } from "@medusajs/modules-sdk"
+
+
+export default async ({ logger }: LoaderOptions): Promise<void> => {
+  logger?.warn(
+    "Local Event Bus installed. This is not recommended for production."
+  )
+}

packages/event-bus-local/src/services/__tests__/event-bus-local.js

@@ -0,0 +1,70 @@
+import LocalEventBusService from "../event-bus-local"
+
+jest.genMockFromModule("events")
+jest.mock("events")
+
+const loggerMock = {
+  info: jest.fn().mockReturnValue(console.log),
+  warn: jest.fn().mockReturnValue(console.log),
+  error: jest.fn().mockReturnValue(console.log),
+}
+
+const moduleDeps = {
+  logger: loggerMock,
+}
+
+describe("LocalEventBusService", () => {
+  let eventBus
+
+  describe("emit", () => {
+    describe("Successfully emits events", () => {
+      beforeEach(() => {
+        jest.clearAllMocks()
+      })
+
+      it("Emits an event", () => {
+        eventBus = new LocalEventBusService(
+          moduleDeps,
+          {},
+          {
+            resources: "shared",
+          }
+        )
+
+        eventBus.eventEmitter_.emit.mockImplementationOnce((data) => data)
+
+        eventBus.emit("eventName", { hi: "1234" })
+
+        expect(eventBus.eventEmitter_.emit).toHaveBeenCalledTimes(1)
+        expect(eventBus.eventEmitter_.emit).toHaveBeenCalledWith("eventName", {
+          hi: "1234",
+        })
+      })
+
+      it("Emits multiple events", () => {
+        eventBus = new LocalEventBusService(
+          moduleDeps,
+          {},
+          {
+            resources: "shared",
+          }
+        )
+
+        eventBus.eventEmitter_.emit.mockImplementationOnce((data) => data)
+
+        eventBus.emit([
+          { eventName: "event-1", data: { hi: "1234" } },
+          { eventName: "event-2", data: { hi: "5678" } },
+        ])
+
+        expect(eventBus.eventEmitter_.emit).toHaveBeenCalledTimes(2)
+        expect(eventBus.eventEmitter_.emit).toHaveBeenCalledWith("event-1", {
+          hi: "1234",
+        })
+        expect(eventBus.eventEmitter_.emit).toHaveBeenCalledWith("event-2", {
+          hi: "5678",
+        })
+      })
+    })
+  })
+})

packages/event-bus-local/src/services/event-bus-local.ts

@@ -0,0 +1,80 @@
+import { Logger, MedusaContainer } from "@medusajs/modules-sdk"
+import { EmitData, Subscriber } from "@medusajs/types"
+import { AbstractEventBusModuleService } from "@medusajs/utils"
+import { EventEmitter } from "events"
+
+type InjectedDependencies = {
+  logger: Logger
+}
+
+const eventEmitter = new EventEmitter()
+
+export default class LocalEventBusService extends AbstractEventBusModuleService {
+  protected readonly logger_: Logger
+  protected readonly eventEmitter_: EventEmitter
+
+  constructor({ logger }: MedusaContainer & InjectedDependencies) {
+    // @ts-ignore
+    super(...arguments)
+
+    this.logger_ = logger
+    this.eventEmitter_ = eventEmitter
+  }
+
+  async emit<T>(
+    eventName: string,
+    data: T,
+    options: Record<string, unknown>
+  ): Promise<void>
+
+  /**
+   * Emit a number of events
+   * @param {EmitData} data - the data to send to the subscriber.
+   */
+  async emit<T>(data: EmitData<T>[]): Promise<void>
+
+  async emit<T, TInput extends string | EmitData<T>[] = string>(
+    eventOrData: TInput,
+    data?: T,
+    options: Record<string, unknown> = {}
+  ): Promise<void> {
+    const isBulkEmit = Array.isArray(eventOrData)
+
+    const events: EmitData[] = isBulkEmit
+      ? eventOrData
+      : [{ eventName: eventOrData, data }]
+
+    for (const event of events) {
+      const eventListenersCount = this.eventEmitter_.listenerCount(
+        event.eventName
+      )
+
+      this.logger_.info(
+        `Processing ${event.eventName} which has ${eventListenersCount} subscribers`
+      )
+      
+      if (eventListenersCount === 0) {
+        continue
+      }
+
+
+      try {
+        this.eventEmitter_.emit(event.eventName, event.data)
+      } catch (error) {
+        this.logger_.error(
+          `An error occurred while processing ${event.eventName}: ${error}`
+        )
+      }
+    }
+  }
+
+  subscribe(event: string | symbol, subscriber: Subscriber): this {
+    this.eventEmitter_.on(event, subscriber)
+    return this
+  }
+
+  unsubscribe(event: string | symbol, subscriber: Subscriber): this {
+    this.eventEmitter_.off(event, subscriber)
+    return this
+  }
+}

packages/event-bus-local/tsconfig.json

@@ -0,0 +1,29 @@
+{
+  "compilerOptions": {
+    "lib": ["es5", "es6", "es2019"],
+    "target": "es6",
+    "outDir": "./dist",
+    "esModuleInterop": true,
+    "declaration": true,
+    "module": "commonjs",
+    "moduleResolution": "node",
+    "emitDecoratorMetadata": true,
+    "experimentalDecorators": true,
+    "sourceMap": true,
+    "noImplicitReturns": true,
+    "strictNullChecks": true,
+    "strictFunctionTypes": true,
+    "noImplicitThis": true,
+    "allowJs": true,
+    "skipLibCheck": true,
+    "downlevelIteration": true // to use ES5 specific tooling
+  },
+  "include": ["src"],
+  "exclude": [
+    "dist",
+    "./src/**/__tests__",
+    "./src/**/__mocks__",
+    "./src/**/__fixtures__",
+    "node_modules"
+  ]
+}

packages/event-bus-local/tsconfig.spec.json

@@ -0,0 +1,5 @@
+{
+  "extends": "./tsconfig.json",
+  "include": ["src"],
+  "exclude": ["node_modules"]
+}

packages/event-bus-redis/.gitignore

@@ -0,0 +1,6 @@
+/dist
+node_modules
+.DS_store
+.env*
+.env
+*.sql

packages/event-bus-redis/README.md

@@ -0,0 +1,79 @@
+<p align="center">
+  <a href="https://www.medusajs.com">
+    <img alt="Medusa" src="https://user-images.githubusercontent.com/7554214/153162406-bf8fd16f-aa98-4604-b87b-e13ab4baf604.png" width="100" />
+  </a>
+</p>
+<h1 align="center">
+  @medusajs/event-bus-redis
+</h1>
+
+<h4 align="center">
+  <a href="https://docs.medusajs.com">Documentation</a> |
+  <a href="https://www.medusajs.com">Website</a>
+</h4>
+
+<p align="center">
+An open source composable commerce engine built for developers.
+</p>
+<p align="center">
+  <a href="https://github.com/medusajs/medusa/blob/master/LICENSE">
+    <img src="https://img.shields.io/badge/license-MIT-blue.svg" alt="Medusa is released under the MIT license." />
+  </a>
+  <a href="https://circleci.com/gh/medusajs/medusa">
+    <img src="https://circleci.com/gh/medusajs/medusa.svg?style=shield" alt="Current CircleCI build status." />
+  </a>
+  <a href="https://github.com/medusajs/medusa/blob/master/CONTRIBUTING.md">
+    <img src="https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat" alt="PRs welcome!" />
+  </a>
+    <a href="https://www.producthunt.com/posts/medusa"><img src="https://img.shields.io/badge/Product%20Hunt-%231%20Product%20of%20the%20Day-%23DA552E" alt="Product Hunt"></a>
+  <a href="https://discord.gg/xpCwq3Kfn8">
+    <img src="https://img.shields.io/badge/chat-on%20discord-7289DA.svg" alt="Discord Chat" />
+  </a>
+  <a href="https://twitter.com/intent/follow?screen_name=medusajs">
+    <img src="https://img.shields.io/twitter/follow/medusajs.svg?label=Follow%20@medusajs" alt="Follow @medusajs" />
+  </a>
+</p>
+
+## Overview
+
+Redis Event Bus module for Medusa. When installed, the events system of Medusa is powered by BullMQ and `io-redis`. BullMQ is responsible for the message queue and worker. `io-redis` is the underlying Redis client, that BullMQ connects to for events storage.
+
+## Getting started
+
+Install the module:
+
+```bash
+yarn add @medusajs/event-bus-redis
+```
+
+Add the module to your `medusa-config.js`:
+
+```js
+module.exports = {
+  // ...
+  modules: [
+    {
+      resolve: "@medusajs/event-bus-redis",
+      options: {
+        redisUrl: "redis:.."
+      },
+    },
+  ],
+  // ...
+}
+```
+
+## Configuration
+
+The module can be configured with the following options:
+
+| Option    | Type       | Description                                                                                                                                             | Default     |
+| --------- | ---------- | ------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------- |
+| `redisUrl`  | `string`  | URL of the Redis instance to connect to.                                                                                              | `events-worker` |
+| `queueName`   | `string?` | Name of the BullMQ queue.                                                                                                            | `events-queue`      |
+| `queueOptions`    | `object?`  | Options for the BullMQ queue. See BullMQ's [documentation](https://api.docs.bullmq.io/interfaces/QueueOptions.html). | `{}`     |
+| `redisOptions` | `object?`  | Options for the Redis instance. See `io-redis`'s [documentation](https://luin.github.io/ioredis/index.html#RedisOptions)                                                | `{}` |
+
+**Info**: See how the options are applied in the [RedisEventBusService](https://github.com/medusajs/medusa/blob/0c1d1d590463fa30b083c4312293348bdf6596be/packages/event-bus-redis/src/services/event-bus-redis.ts#L52) and [loader](https://github.com/medusajs/medusa/blob/0c1d1d590463fa30b083c4312293348bdf6596be/packages/event-bus-redis/src/loaders/index.ts).
+
+If you do not provide a `redisUrl` in the module options, the server will fail to start. 

packages/event-bus-redis/jest.config.js

@@ -0,0 +1,13 @@
+module.exports = {
+  globals: {
+    "ts-jest": {
+      tsConfig: "tsconfig.spec.json",
+      isolatedModules: false,
+    },
+  },
+  transform: {
+    "^.+\\.[jt]s?$": "ts-jest",
+  },
+  testEnvironment: `node`,
+  moduleFileExtensions: [`js`, `jsx`, `ts`, `tsx`, `json`],
+}

packages/event-bus-redis/package.json

@@ -0,0 +1,40 @@
+{
+  "name": "@medusajs/event-bus-redis",
+  "version": "0.1.0",
+  "description": "Redis Event Bus Module for Medusa",
+  "main": "dist/index.js",
+  "files": [
+    "dist"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/medusajs/medusa",
+    "directory": "packages/event-bus-redis"
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "author": "Medusa",
+  "license": "MIT",
+  "devDependencies": {
+    "@medusajs/types": "^0.0.1",
+    "cross-env": "^5.2.1",
+    "jest": "^25.5.2",
+    "medusa-test-utils": "^1.1.39",
+    "ts-jest": "^25.5.1",
+    "typescript": "^4.4.4"
+  },
+  "scripts": {
+    "watch": "tsc --build --watch",
+    "prepare": "cross-env NODE_ENV=production yarn run build",
+    "build": "tsc --build",
+    "test": "jest --passWithNoTests",
+    "test:unit": "jest --passWithNoTests"
+  },
+  "dependencies": {
+    "@medusajs/modules-sdk": "*",
+    "@medusajs/utils": "^0.0.1",
+    "bullmq": "^3.5.6",
+    "ioredis": "^5.2.5"
+  }
+}

packages/event-bus-redis/src/index.ts

@@ -0,0 +1,13 @@
+import { ModuleExports } from "@medusajs/modules-sdk"
+import Loader from "./loaders"
+import RedisEventBusService from "./services/event-bus-redis"
+
+const service = RedisEventBusService
+const loaders = [Loader]
+
+const moduleDefinition: ModuleExports = {
+  service,
+  loaders,
+}
+
+export default moduleDefinition

packages/event-bus-redis/src/loaders/index.ts

@@ -0,0 +1,41 @@
+import { LoaderOptions } from "@medusajs/modules-sdk"
+import { asValue } from "awilix"
+import Redis from "ioredis"
+import { EOL } from "os"
+import { EventBusRedisModuleOptions } from "../types"
+
+export default async ({
+  container,
+  logger,
+  options,
+}: LoaderOptions): Promise<void> => {
+  const { redisUrl, redisOptions } = options as EventBusRedisModuleOptions
+
+  if (!redisUrl) {
+    throw Error(
+      "No `redis_url` provided in project config. It is required for the Redis Event Bus."
+    )
+  }
+
+  const connection = new Redis(redisUrl, {
+    // Required config. See: https://github.com/OptimalBits/bull/blob/develop/CHANGELOG.md#breaking-changes
+    maxRetriesPerRequest: null,
+    enableReadyCheck: false,
+    // Lazy connect to properly handle connection errors
+    lazyConnect: true,
+    ...(redisOptions ?? {}),
+  })
+
+  try {
+    await connection.connect()
+    logger?.info(`Connection to Redis in module 'event-bus-redis' established`)
+  } catch (err) {
+    logger?.error(
+      `An error occurred while connecting to Redis in module 'event-bus-redis':${EOL} ${err}`
+    )
+  }
+
+  container.register({
+    eventBusRedisConnection: asValue(connection),
+  })
+}

packages/event-bus-redis/src/services/__tests__/event-bus.js

@@ -0,0 +1,319 @@
+import { Queue, Worker } from "bullmq"
+import { MockManager } from "medusa-test-utils"
+import RedisEventBusService from "../event-bus-redis"
+
+jest.genMockFromModule("bullmq")
+jest.genMockFromModule("ioredis")
+jest.mock("bullmq")
+jest.mock("ioredis")
+
+const loggerMock = {
+  info: jest.fn().mockReturnValue(console.log),
+  warn: jest.fn().mockReturnValue(console.log),
+  error: jest.fn().mockReturnValue(console.log),
+}
+
+const simpleModuleOptions = { redisUrl: "test-url" }
+const moduleDeps = {
+  manager: MockManager,
+  logger: loggerMock,
+  eventBusRedisConnection: {},
+}
+
+describe("RedisEventBusService", () => {
+  let eventBus
+
+  describe("constructor", () => {
+    beforeAll(() => {
+      jest.clearAllMocks()
+    })
+
+    it("Creates a queue + worker", () => {
+      eventBus = new RedisEventBusService(moduleDeps, simpleModuleOptions, {
+        resources: "shared",
+      })
+
+      expect(Queue).toHaveBeenCalledTimes(1)
+      expect(Queue).toHaveBeenCalledWith("events-queue", {
+        connection: expect.any(Object),
+        prefix: "RedisEventBusService",
+      })
+
+      expect(Worker).toHaveBeenCalledTimes(1)
+      expect(Worker).toHaveBeenCalledWith(
+        "events-queue",
+        expect.any(Function),
+        {
+          connection: expect.any(Object),
+          prefix: "RedisEventBusService",
+        }
+      )
+    })
+
+    it("Throws on isolated module declaration", () => {
+      try {
+        eventBus = new RedisEventBusService(moduleDeps, simpleModuleOptions, {
+          resources: "isolated",
+        })
+      } catch (error) {
+        expect(error.message).toEqual(
+          "At the moment this module can only be used with shared resources"
+        )
+      }
+    })
+  })
+
+  describe("emit", () => {
+    describe("Successfully emits events", () => {
+      beforeEach(() => {
+        jest.clearAllMocks()
+      })
+
+      it("Adds job to queue with default options", () => {
+        eventBus = new RedisEventBusService(moduleDeps, simpleModuleOptions, {
+          resources: "shared",
+        })
+
+        eventBus.queue_.addBulk.mockImplementationOnce(() => "hi")
+        eventBus.emit("eventName", { hi: "1234" })
+
+        expect(eventBus.queue_.addBulk).toHaveBeenCalledTimes(1)
+        expect(eventBus.queue_.addBulk).toHaveBeenCalledWith([
+          {
+            name: "eventName",
+            data: { eventName: "eventName", data: { hi: "1234" } },
+            opts: {
+              attempts: 1,
+              removeOnComplete: true,
+            },
+          },
+        ])
+      })
+
+      it("Adds job to queue with custom options passed directly upon emitting", () => {
+        eventBus = new RedisEventBusService(moduleDeps, simpleModuleOptions, {
+          resources: "shared",
+        })
+
+        eventBus.queue_.addBulk.mockImplementationOnce(() => "hi")
+        eventBus.emit(
+          "eventName",
+          { hi: "1234" },
+          { attempts: 3, backoff: 5000, delay: 1000 }
+        )
+
+        expect(eventBus.queue_.addBulk).toHaveBeenCalledTimes(1)
+        expect(eventBus.queue_.addBulk).toHaveBeenCalledWith([
+          {
+            name: "eventName",
+            data: { eventName: "eventName", data: { hi: "1234" } },
+            opts: {
+              attempts: 3,
+              backoff: 5000,
+              delay: 1000,
+              removeOnComplete: true,
+            },
+          },
+        ])
+      })
+
+      it("Adds job to queue with module job options", () => {
+        eventBus = new RedisEventBusService(
+          moduleDeps,
+          {
+            ...simpleModuleOptions,
+            jobOptions: {
+              removeOnComplete: {
+                age: 5,
+              },
+              attempts: 7,
+            },
+          },
+          {
+            resources: "shared",
+          }
+        )
+
+        eventBus.queue_.addBulk.mockImplementationOnce(() => "hi")
+        eventBus.emit("eventName", { hi: "1234" })
+
+        expect(eventBus.queue_.addBulk).toHaveBeenCalledTimes(1)
+        expect(eventBus.queue_.addBulk).toHaveBeenCalledWith([
+          {
+            name: "eventName",
+            data: { eventName: "eventName", data: { hi: "1234" } },
+            opts: {
+              attempts: 7,
+              removeOnComplete: {
+                age: 5,
+              },
+            },
+          },
+        ])
+      })
+
+      it("Adds job to queue with default, local, and global options merged", () => {
+        eventBus = new RedisEventBusService(
+          moduleDeps,
+          {
+            ...simpleModuleOptions,
+            jobOptions: {
+              removeOnComplete: 5,
+            },
+          },
+          {
+            resources: "shared",
+          }
+        )
+
+        eventBus.queue_.addBulk.mockImplementationOnce(() => "hi")
+        eventBus.emit("eventName", { hi: "1234" }, { delay: 1000 })
+
+        expect(eventBus.queue_.addBulk).toHaveBeenCalledTimes(1)
+        expect(eventBus.queue_.addBulk).toHaveBeenCalledWith([
+          {
+            name: "eventName",
+            data: { eventName: "eventName", data: { hi: "1234" } },
+            opts: {
+              attempts: 1,
+              removeOnComplete: 5,
+              delay: 1000,
+            },
+          },
+        ])
+      })
+    })
+  })
+
+  describe("worker_", () => {
+    let result
+
+    describe("Successfully processes the jobs", () => {
+      beforeEach(async () => {
+        jest.clearAllMocks()
+
+        eventBus = new RedisEventBusService(moduleDeps, simpleModuleOptions, {
+          resources: "shared",
+        })
+      })
+
+      it("Processes a simple event with no options", async () => {
+        eventBus.subscribe("eventName", () => Promise.resolve("hi"))
+
+        result = await eventBus.worker_({
+          data: { eventName: "eventName", data: {} },
+          opts: { attempts: 1 },
+        })
+
+        expect(loggerMock.info).toHaveBeenCalledTimes(1)
+        expect(loggerMock.info).toHaveBeenCalledWith(
+          "Processing eventName which has 1 subscribers"
+        )
+
+        expect(result).toEqual(["hi"])
+      })
+
+      it("Processes event with failing subscribers", async () => {
+        eventBus.subscribe("eventName", () => Promise.resolve("hi"))
+        eventBus.subscribe("eventName", () => Promise.reject("fail1"))
+        eventBus.subscribe("eventName", () => Promise.resolve("hi2"))
+        eventBus.subscribe("eventName", () => Promise.reject("fail2"))
+
+        result = await eventBus.worker_({
+          data: { eventName: "eventName", data: {} },
+          update: (data) => data,
+          opts: { attempts: 1 },
+        })
+
+        expect(loggerMock.info).toHaveBeenCalledTimes(1)
+        expect(loggerMock.info).toHaveBeenCalledWith(
+          "Processing eventName which has 4 subscribers"
+        )
+
+        expect(loggerMock.warn).toHaveBeenCalledTimes(3)
+        expect(loggerMock.warn).toHaveBeenCalledWith(
+          "An error occurred while processing eventName: fail1"
+        )
+        expect(loggerMock.warn).toHaveBeenCalledWith(
+          "An error occurred while processing eventName: fail2"
+        )
+
+        expect(loggerMock.warn).toHaveBeenCalledWith(
+          "One or more subscribers of eventName failed. Retrying is not configured. Use 'attempts' option when emitting events."
+        )
+
+        expect(result).toEqual(["hi", "fail1", "hi2", "fail2"])
+      })
+
+      it("Retries processing when subcribers fail, if configured - final attempt", async () => {
+        eventBus.subscribe("eventName", async () => Promise.resolve("hi"), {
+          subscriberId: "1",
+        })
+        eventBus.subscribe("eventName", async () => Promise.reject("fail1"), {
+          subscriberId: "2",
+        })
+
+        result = await eventBus
+          .worker_({
+            data: {
+              eventName: "eventName",
+              data: {},
+              completedSubscriberIds: ["1"],
+            },
+            attemptsMade: 2,
+            update: (data) => data,
+            opts: { attempts: 2 },
+          })
+          .catch((error) => void 0)
+
+        expect(loggerMock.warn).toHaveBeenCalledTimes(1)
+        expect(loggerMock.warn).toHaveBeenCalledWith(
+          "An error occurred while processing eventName: fail1"
+        )
+
+        expect(loggerMock.info).toHaveBeenCalledTimes(2)
+        expect(loggerMock.info).toHaveBeenCalledWith(
+          "Final retry attempt for eventName"
+        )
+        expect(loggerMock.info).toHaveBeenCalledWith(
+          "Retrying eventName which has 2 subscribers (1 of them failed)"
+        )
+      })
+
+      it("Retries processing when subcribers fail, if configured", async () => {
+        eventBus.subscribe("eventName", async () => Promise.resolve("hi"), {
+          subscriberId: "1",
+        })
+        eventBus.subscribe("eventName", async () => Promise.reject("fail1"), {
+          subscriberId: "2",
+        })
+
+        result = await eventBus
+          .worker_({
+            data: {
+              eventName: "eventName",
+              data: {},
+              completedSubscriberIds: ["1"],
+            },
+            attemptsMade: 2,
+            update: (data) => data,
+            opts: { attempts: 3 },
+          })
+          .catch((err) => void 0)
+
+        expect(loggerMock.warn).toHaveBeenCalledTimes(2)
+        expect(loggerMock.warn).toHaveBeenCalledWith(
+          "An error occurred while processing eventName: fail1"
+        )
+        expect(loggerMock.warn).toHaveBeenCalledWith(
+          "One or more subscribers of eventName failed. Retrying..."
+        )
+
+        expect(loggerMock.info).toHaveBeenCalledTimes(1)
+        expect(loggerMock.info).toHaveBeenCalledWith(
+          "Retrying eventName which has 2 subscribers (1 of them failed)"
+        )
+      })
+    })
+  })
+})

packages/event-bus-redis/src/services/event-bus-redis.ts

@@ -0,0 +1,209 @@
+import { InternalModuleDeclaration, Logger } from "@medusajs/modules-sdk"
+import { ConfigModule, EmitData } from "@medusajs/types"
+import { AbstractEventBusModuleService } from "@medusajs/utils"
+import { BulkJobOptions, JobsOptions, Queue, Worker } from "bullmq"
+import { Redis } from "ioredis"
+import { BullJob, EmitOptions, EventBusRedisModuleOptions } from "../types"
+
+type InjectedDependencies = {
+  logger: Logger
+  configModule: ConfigModule
+  eventBusRedisConnection: Redis
+}
+
+/**
+ * Can keep track of multiple subscribers to different events and run the
+ * subscribers when events happen. Events will run asynchronously.
+ */
+export default class RedisEventBusService extends AbstractEventBusModuleService {
+  protected readonly config_: ConfigModule
+  protected readonly logger_: Logger
+  protected readonly moduleOptions_: EventBusRedisModuleOptions
+  protected readonly moduleDeclaration_: InternalModuleDeclaration
+
+  protected queue_: Queue
+
+  constructor(
+    { configModule, logger, eventBusRedisConnection }: InjectedDependencies,
+    moduleOptions: EventBusRedisModuleOptions = {},
+    moduleDeclaration: InternalModuleDeclaration
+  ) {
+    // @ts-ignore
+    super(...arguments)
+
+    this.moduleOptions_ = moduleOptions
+    this.config_ = configModule
+    this.logger_ = logger
+
+    this.queue_ = new Queue(moduleOptions.queueName ?? `events-queue`, {
+      prefix: `${this.constructor.name}`,
+      ...(moduleOptions.queueOptions ?? {}),
+      connection: eventBusRedisConnection,
+    })
+
+    // Register our worker to handle emit calls
+    new Worker(moduleOptions.queueName ?? "events-queue", this.worker_, {
+      prefix: `${this.constructor.name}`,
+      ...(moduleOptions.workerOptions ?? {}),
+      connection: eventBusRedisConnection,
+    })
+  }
+
+  /**
+   * Emit a single event
+   * @param {string} eventName - the name of the event to be process.
+   * @param data - the data to send to the subscriber.
+   * @param options - options to add the job with
+   */
+  async emit<T>(
+    eventName: string,
+    data: T,
+    options: Record<string, unknown>
+  ): Promise<void>
+
+  /**
+   * Emit a number of events
+   * @param {EmitData} data - the data to send to the subscriber.
+   */
+  async emit<T>(data: EmitData<T>[]): Promise<void>
+
+  async emit<T, TInput extends string | EmitData<T>[] = string>(
+    eventNameOrData: TInput,
+    data?: T,
+    options: BulkJobOptions | JobsOptions = {}
+  ): Promise<void> {
+    const globalJobOptions = this.moduleOptions_.jobOptions ?? {}
+
+    const isBulkEmit = Array.isArray(eventNameOrData)
+
+    const opts = {
+      // default options
+      removeOnComplete: true,
+      attempts: 1,
+      // global options
+      ...globalJobOptions,
+    } as EmitOptions
+
+    const events = isBulkEmit
+      ? eventNameOrData.map((event) => ({
+          name: event.eventName,
+          data: { eventName: event.eventName, data: event.data },
+          opts: {
+            ...opts,
+            // local options
+            ...event.options,
+          },
+        }))
+      : [
+          {
+            name: eventNameOrData as string,
+            data: { eventName: eventNameOrData, data },
+            opts: {
+              ...opts,
+              // local options
+              ...options,
+            },
+          },
+        ]
+
+    await this.queue_.addBulk(events)
+  }
+
+  /**
+   * Handles incoming jobs.
+   * @param job The job object
+   * @return resolves to the results of the subscriber calls.
+   */
+  worker_ = async <T>(job: BullJob<T>): Promise<unknown> => {
+    const { eventName, data } = job.data
+    const eventSubscribers = this.eventToSubscribersMap.get(eventName) || []
+    const wildcardSubscribers = this.eventToSubscribersMap.get("*") || []
+
+    const allSubscribers = eventSubscribers.concat(wildcardSubscribers)
+
+    // Pull already completed subscribers from the job data
+    const completedSubscribers = job.data.completedSubscriberIds || []
+
+    // Filter out already completed subscribers from the all subscribers
+    const subscribersInCurrentAttempt = allSubscribers.filter(
+      (subscriber) =>
+        subscriber.id && !completedSubscribers.includes(subscriber.id)
+    )
+
+    const currentAttempt = job.attemptsMade
+    const isRetry = currentAttempt > 1
+    const configuredAttempts = job.opts.attempts
+
+    const isFinalAttempt = currentAttempt === configuredAttempts
+
+    if (isRetry) {
+      if (isFinalAttempt) {
+        this.logger_.info(`Final retry attempt for ${eventName}`)
+      }
+
+      this.logger_.info(
+        `Retrying ${eventName} which has ${eventSubscribers.length} subscribers (${subscribersInCurrentAttempt.length} of them failed)`
+      )
+    } else {
+      this.logger_.info(
+        `Processing ${eventName} which has ${eventSubscribers.length} subscribers`
+      )
+    }
+
+    const completedSubscribersInCurrentAttempt: string[] = []
+
+    const subscribersResult = await Promise.all(
+      subscribersInCurrentAttempt.map(async ({ id, subscriber }) => {
+        return await subscriber(data, eventName)
+          .then(async (data) => {
+            // For every subscriber that completes successfully, add their id to the list of completed subscribers
+            completedSubscribersInCurrentAttempt.push(id)
+            return data
+          })
+          .catch((err) => {
+            this.logger_.warn(
+              `An error occurred while processing ${eventName}: ${err}`
+            )
+            return err
+          })
+      })
+    )
+
+    // If the number of completed subscribers is different from the number of subcribers to process in current attempt, some of them failed
+    const didSubscribersFail =
+      completedSubscribersInCurrentAttempt.length !==
+      subscribersInCurrentAttempt.length
+
+    const isRetriesConfigured = configuredAttempts! > 1
+
+    // Therefore, if retrying is configured, we try again
+    const shouldRetry =
+      didSubscribersFail && isRetriesConfigured && !isFinalAttempt
+
+    if (shouldRetry) {
+      const updatedCompletedSubscribers = [
+        ...completedSubscribers,
+        ...completedSubscribersInCurrentAttempt,
+      ]
+
+      job.data.completedSubscriberIds = updatedCompletedSubscribers
+
+      await job.update(job.data)
+
+      const errorMessage = `One or more subscribers of ${eventName} failed. Retrying...`
+
+      this.logger_.warn(errorMessage)
+
+      return Promise.reject(Error(errorMessage))
+    }
+
+    if (didSubscribersFail && !isFinalAttempt) {
+      // If retrying is not configured, we log a warning to allow server admins to recover manually
+      this.logger_.warn(
+        `One or more subscribers of ${eventName} failed. Retrying is not configured. Use 'attempts' option when emitting events.`
+      )
+    }
+
+    return Promise.resolve(subscribersResult)
+  }
+}

packages/event-bus-redis/src/types/index.ts

@@ -0,0 +1,40 @@
+import { Job, JobsOptions, QueueOptions, WorkerOptions } from "bullmq"
+import { RedisOptions } from "ioredis"
+
+export type JobData<T> = {
+  eventName: string
+  data: T
+  completedSubscriberIds?: string[] | undefined
+}
+
+export type BullJob<T> = {
+  data: JobData<T>
+} & Job
+
+export type EmitOptions = JobsOptions
+
+export type EventBusRedisModuleOptions = {
+  queueName?: string
+  queueOptions?: QueueOptions
+
+  workerOptions?: WorkerOptions
+
+  redisUrl?: string
+  redisOptions?: RedisOptions
+
+  /**
+   * Global options passed to all `EventBusService.emit` in the core as well as your own emitters. The options are forwarded to Bull's `Queue.add` method.
+   *
+   * The global options can be overridden by passing options to `EventBusService.emit` directly.
+   *
+   * Example
+   * ```js
+   * {
+   *    removeOnComplete: { age: 10 },
+   * }
+   * ```
+   *
+   * @see https://api.docs.bullmq.io/interfaces/BaseJobOptions.html
+   */
+  jobOptions?: EmitOptions
+}

packages/event-bus-redis/tsconfig.json

@@ -0,0 +1,29 @@
+{
+  "compilerOptions": {
+    "lib": ["es2020"],
+    "target": "es2020",
+    "outDir": "./dist",
+    "esModuleInterop": true,
+    "declaration": true,
+    "module": "commonjs",
+    "moduleResolution": "node",
+    "emitDecoratorMetadata": true,
+    "experimentalDecorators": true,
+    "sourceMap": true,
+    "noImplicitReturns": true,
+    "strictNullChecks": true,
+    "strictFunctionTypes": true,
+    "noImplicitThis": true,
+    "allowJs": true,
+    "skipLibCheck": true,
+    "downlevelIteration": true // to use ES5 specific tooling
+  },
+  "include": ["src"],
+  "exclude": [
+    "dist",
+    "./src/**/__tests__",
+    "./src/**/__mocks__",
+    "./src/**/__fixtures__",
+    "node_modules"
+  ]
+}

packages/event-bus-redis/tsconfig.spec.json

@@ -0,0 +1,5 @@
+{
+  "extends": "./tsconfig.json",
+  "include": ["src"],
+  "exclude": ["node_modules"]
+}

packages/inventory/src/initialize/index.ts

@@ -1,15 +1,16 @@
-import { IEventBusService, IInventoryService } from "@medusajs/medusa"
+import { IInventoryService } from "@medusajs/medusa"
 import {
   ExternalModuleDeclaration,
   InternalModuleDeclaration,
-  MedusaModule,
+  MedusaModule
 } from "@medusajs/modules-sdk"
+import { EventBusTypes } from "@medusajs/types"
 import { InventoryServiceInitializeOptions } from "../types"
 
 export const initialize = async (
   options?: InventoryServiceInitializeOptions | ExternalModuleDeclaration,
   injectedDependencies?: {
-    eventBusService: IEventBusService
+    eventBusService: EventBusTypes.IEventBusService
   }
 ): Promise<IInventoryService> => {
   const serviceKey = "inventoryService"

packages/inventory/src/services/inventory-item.ts

@@ -3,10 +3,9 @@ import {
   CreateInventoryItemInput,
   FilterableInventoryItemProps,
   FindConfig,
-  IEventBusService,
-  InventoryItemDTO,
+  InventoryItemDTO
 } from "@medusajs/medusa"
-import { SharedContext } from "@medusajs/types"
+import { EventBusTypes, SharedContext } from "@medusajs/types"
 import { InjectEntityManager, MedusaContext } from "@medusajs/utils"
 import { isDefined, MedusaError } from "medusa-core-utils"
 import { DeepPartial, EntityManager, FindManyOptions } from "typeorm"
@@ -14,7 +13,7 @@ import { InventoryItem } from "../models"
 import { getListQuery } from "../utils/query"
 
 type InjectedDependencies = {
-  eventBusService: IEventBusService
+  eventBusService: EventBusTypes.IEventBusService
   manager: EntityManager
 }
 
@@ -26,7 +25,7 @@ export default class InventoryItemService {
   }
 
   protected readonly manager_: EntityManager
-  protected readonly eventBusService_: IEventBusService | undefined
+  protected readonly eventBusService_: EventBusTypes.IEventBusService | undefined
 
   constructor({ eventBusService, manager }: InjectedDependencies) {
     this.manager_ = manager

packages/inventory/src/services/inventory-level.ts

@@ -2,17 +2,16 @@ import {
   buildQuery,
   CreateInventoryLevelInput,
   FilterableInventoryLevelProps,
-  FindConfig,
-  IEventBusService,
+  FindConfig
 } from "@medusajs/medusa"
-import { SharedContext } from "@medusajs/types"
+import { EventBusTypes, SharedContext } from "@medusajs/types"
 import { InjectEntityManager, MedusaContext } from "@medusajs/utils"
 import { isDefined, MedusaError } from "medusa-core-utils"
 import { DeepPartial, EntityManager, FindManyOptions, In } from "typeorm"
 import { InventoryLevel } from "../models"
 
 type InjectedDependencies = {
-  eventBusService: IEventBusService
+  eventBusService: EventBusTypes.IEventBusService
   manager: EntityManager
 }
 
@@ -24,7 +23,7 @@ export default class InventoryLevelService {
   }
 
   protected readonly manager_: EntityManager
-  protected readonly eventBusService_: IEventBusService | undefined
+  protected readonly eventBusService_: EventBusTypes.IEventBusService | undefined
 
   constructor({ eventBusService, manager }: InjectedDependencies) {
     this.manager_ = manager

packages/inventory/src/services/inventory.ts

@@ -8,34 +8,33 @@ import {
   FilterableInventoryLevelProps,
   FilterableReservationItemProps,
   FindConfig,
-  IEventBusService,
   IInventoryService,
   InventoryItemDTO,
   InventoryLevelDTO,
   ReservationItemDTO,
   UpdateInventoryLevelInput,
-  UpdateReservationItemInput,
+  UpdateReservationItemInput
 } from "@medusajs/medusa"
-import { SharedContext } from "@medusajs/types"
+import { EventBusTypes, SharedContext } from "@medusajs/types"
 import { InjectEntityManager, MedusaContext } from "@medusajs/utils"
 import { MedusaError } from "medusa-core-utils"
 import { EntityManager } from "typeorm"
 import {
   InventoryItemService,
   InventoryLevelService,
-  ReservationItemService,
+  ReservationItemService
 } from "./"
 
 type InjectedDependencies = {
   manager: EntityManager
-  eventBusService: IEventBusService
+  eventBusService: EventBusTypes.IEventBusService
   inventoryItemService: InventoryItemService
   inventoryLevelService: InventoryLevelService
   reservationItemService: ReservationItemService
 }
 export default class InventoryService implements IInventoryService {
   protected readonly manager_: EntityManager
-  protected readonly eventBusService_: IEventBusService | undefined
+  protected readonly eventBusService_: EventBusTypes.IEventBusService | undefined
   protected readonly inventoryItemService_: InventoryItemService
   protected readonly reservationItemService_: ReservationItemService
   protected readonly inventoryLevelService_: InventoryLevelService

packages/inventory/src/services/reservation-item.ts

@@ -2,11 +2,9 @@ import {
   buildQuery,
   CreateReservationItemInput,
   FilterableReservationItemProps,
-  FindConfig,
-  IEventBusService,
-  UpdateReservationItemInput,
+  FindConfig, UpdateReservationItemInput
 } from "@medusajs/medusa"
-import { SharedContext } from "@medusajs/types"
+import { EventBusTypes, SharedContext } from "@medusajs/types"
 import { InjectEntityManager, MedusaContext } from "@medusajs/utils"
 import { isDefined, MedusaError } from "medusa-core-utils"
 import { EntityManager, FindManyOptions } from "typeorm"
@@ -14,7 +12,7 @@ import { InventoryLevelService } from "."
 import { ReservationItem } from "../models"
 
 type InjectedDependencies = {
-  eventBusService: IEventBusService
+  eventBusService: EventBusTypes.IEventBusService
   manager: EntityManager
   inventoryLevelService: InventoryLevelService
 }
@@ -27,7 +25,7 @@ export default class ReservationItemService {
   }
 
   protected readonly manager_: EntityManager
-  protected readonly eventBusService_: IEventBusService | undefined
+  protected readonly eventBusService_: EventBusTypes.IEventBusService | undefined
   protected readonly inventoryLevelService_: InventoryLevelService
 
   constructor({

packages/medusa/package.json

@@ -22,6 +22,7 @@
     "@babel/cli": "^7.14.3",
     "@babel/core": "^7.14.3",
     "@babel/preset-typescript": "^7.13.0",
+    "@medusajs/types": "*",
     "@types/express": "^4.17.17",
     "@types/jest": "^27.5.2",
     "@types/jsonwebtoken": "^8.5.9",
@@ -51,11 +52,12 @@
   "dependencies": {
     "@medusajs/medusa-cli": "^1.3.8",
     "@medusajs/modules-sdk": "*",
+    "@medusajs/utils": "*",
     "@types/ioredis": "^4.28.10",
     "@types/lodash": "^4.14.191",
     "awilix": "^8.0.0",
     "body-parser": "^1.19.0",
-    "bull": "^3.12.1",
+    "bullmq": "^3.5.6",
     "chokidar": "^3.4.2",
     "class-transformer": "^0.5.1",
     "class-validator": "^0.13.2",
@@ -68,7 +70,7 @@
     "express-session": "^1.17.3",
     "fs-exists-cached": "^1.0.0",
     "glob": "^7.1.6",
-    "ioredis": "^4.17.3",
+    "ioredis": "^5.2.5",
     "ioredis-mock": "^5.6.0",
     "iso8601-duration": "^1.3.0",
     "jsonwebtoken": "^8.5.1",

packages/medusa/src/api/routes/admin/order-edits/__tests__/get-order.ts

@@ -3,7 +3,7 @@ import { request } from "../../../../../helpers/test-request"
 import { orderEditServiceMock } from "../../../../../services/__mocks__/order-edit"
 import {
   defaultOrderEditFields,
-  defaultOrderEditRelations
+  defaultOrderEditRelations,
 } from "../../../../../types/order-edit"
 
 describe("GET /admin/order-edits/:id", () => {

packages/medusa/src/api/routes/admin/orders/request-return.ts

@@ -4,22 +4,20 @@ import {
   IsInt,
   IsOptional,
   IsString,
-  ValidateNested,
+  ValidateNested
 } from "class-validator"
 import {
   EventBusService,
   OrderService,
-  ReturnService,
+  ReturnService
 } from "../../../../services"
 
 import { Type } from "class-transformer"
 import { isDefined, MedusaError } from "medusa-core-utils"
 import { EntityManager } from "typeorm"
 import { Order, Return } from "../../../../models"
-import { OrdersReturnItem } from "../../../../types/orders"
 import { FindParams } from "../../../../types/common"
-import { FlagRouter } from "../../../../utils/flag-router"
-import { IInventoryService } from "../../../../interfaces"
+import { OrdersReturnItem } from "../../../../types/orders"
 
 /**
  * @oas [post] /admin/orders/{id}/return

packages/medusa/src/api/routes/store/orders/request-order.ts

@@ -1,10 +1,7 @@
 import { IsNotEmpty, IsString } from "class-validator"
 import { MedusaError } from "medusa-core-utils"
-import {
-  CustomerService,
-  EventBusService,
-  OrderService,
-} from "../../../../services"
+import { CustomerService, OrderService } from "../../../../services"
+import EventBusService from "../../../../services/event-bus"
 import TokenService from "../../../../services/token"
 import { TokenEvents } from "../../../../types/token"
 

packages/medusa/src/helpers/test-request.js

@@ -1,3 +1,8 @@
+import {
+  moduleHelper,
+  moduleLoader,
+  registerModules,
+} from "@medusajs/modules-sdk"
 import { asValue, createContainer } from "awilix"
 import express from "express"
 import jwt from "jsonwebtoken"
@@ -7,11 +12,6 @@ import "reflect-metadata"
 import supertest from "supertest"
 import apiLoader from "../loaders/api"
 import featureFlagLoader, { featureFlagRouter } from "../loaders/feature-flags"
-import {
-  moduleLoader,
-  moduleHelper,
-  registerModules,
-} from "@medusajs/modules-sdk"
 import passportLoader from "../loaders/passport"
 import servicesLoader from "../loaders/services"
 import strategiesLoader from "../loaders/strategies"

packages/medusa/src/interfaces/__tests__/event-bus-service.spec.ts

@@ -0,0 +1,132 @@
+import { EventBusTypes } from "@medusajs/types"
+import { EventBusUtils } from "@medusajs/utils"
+import { EntityManager } from "typeorm"
+
+class EventBus extends EventBusUtils.AbstractEventBusModuleService {
+  protected manager_!: EntityManager
+
+  constructor(protected readonly container) {
+    super()
+    this.container = container
+  }
+
+  async emit<T>(
+    eventName: string,
+    data: T,
+    options: Record<string, unknown>
+  ): Promise<void>
+  async emit<T>(data: EventBusTypes.EmitData<T>[]): Promise<void>
+
+  async emit<T, TInput extends string | EventBusTypes.EmitData<T>[] = string>(
+    eventOrData: TInput,
+    data?: T,
+    options: Record<string, unknown> = {}
+  ): Promise<void> {
+    const isBulkEmit = Array.isArray(eventOrData)
+    const event = isBulkEmit ? eventOrData[0].eventName : eventOrData
+
+    console.log(
+      `[${event}] Local Event Bus installed. Emitting events has no effect.`
+    )
+  }
+}
+
+describe("AbstractEventBusService", () => {
+  let eventBus
+
+  describe("subscribe", () => {
+    beforeAll(() => {
+      jest.clearAllMocks()
+    })
+
+    beforeEach(() => {
+      eventBus = new EventBus({})
+    })
+
+    it("successfully adds subscriber", () => {
+      eventBus.subscribe("eventName", () => "test", {
+        subscriberId: "my-subscriber",
+      })
+
+      expect(eventBus.eventToSubscribersMap_.get("eventName").length).toEqual(1)
+    })
+
+    it("successfully adds multiple subscribers with explicit ids", () => {
+      eventBus.subscribe("eventName", () => "test", {
+        subscriberId: "my-subscriber-1",
+      })
+
+      eventBus.subscribe("eventName", () => "test", {
+        subscriberId: "my-subscriber-2",
+      })
+
+      expect(eventBus.eventToSubscribersMap_.get("eventName").length).toEqual(2)
+    })
+
+    it("successfully adds multiple subscribers with generates ids", () => {
+      eventBus.subscribe("eventName", () => "test")
+
+      eventBus.subscribe("eventName", () => "test")
+
+      expect(eventBus.eventToSubscribersMap_.get("eventName").length).toEqual(2)
+    })
+
+    it("throws when subscriber already exists", async () => {
+      expect.assertions(1)
+
+      eventBus.subscribe("eventName", () => "test", {
+        subscriberId: "my-subscriber",
+      })
+
+      try {
+        eventBus.subscribe("eventName", () => "new", {
+          subscriberId: "my-subscriber",
+        })
+      } catch (error) {
+        expect(error.message).toBe(
+          "Subscriber with id my-subscriber already exists"
+        )
+      }
+    })
+
+    it("throws when subscriber is not a function", async () => {
+      expect.assertions(1)
+
+      try {
+        eventBus.subscribe("eventName", "definitely-not-a-function")
+      } catch (error) {
+        expect(error.message).toBe("Subscriber must be a function")
+      }
+    })
+  })
+
+  describe("unsubscribe", () => {
+    beforeAll(() => {
+      jest.clearAllMocks()
+    })
+
+    beforeEach(() => {
+      eventBus = new EventBus({})
+
+      eventBus.subscribe("eventName", () => "test", { subscriberId: "test" })
+    })
+
+    it("successfully removes subscriber", () => {
+      eventBus.unsubscribe("eventName", () => "test", { subscriberId: "test" })
+
+      expect(eventBus.eventToSubscribersMap_.get("eventName").length).toEqual(0)
+    })
+
+    it("does nothing if subscriber does not exist", () => {
+      eventBus.unsubscribe("eventName", () => "non-existing")
+
+      expect(eventBus.eventToSubscribersMap_.get("eventName").length).toEqual(1)
+    })
+
+    it("does nothing if event has no subcribers", () => {
+      eventBus.unsubscribe("non-existing", () => "test")
+
+      expect(eventBus.eventToSubscribersMap_.get("eventName").length).toEqual(1)
+    })
+  })
+})

packages/medusa/src/interfaces/batch-job-strategy.ts

@@ -1,8 +1,8 @@
-import { TransactionBaseService } from "./transaction-base-service"
-import { BatchJobResultError, CreateBatchJobInput } from "../types/batch-job"
-import { ProductExportBatchJob } from "../strategies/batch-jobs/product/types"
-import { BatchJobService } from "../services"
 import { BatchJob } from "../models"
+import { BatchJobService } from "../services"
+import { ProductExportBatchJob } from "../strategies/batch-jobs/product/types"
+import { BatchJobResultError, CreateBatchJobInput } from "../types/batch-job"
+import { TransactionBaseService } from "./transaction-base-service"
 
 export interface IBatchJobStrategy extends TransactionBaseService {
   /**

packages/medusa/src/interfaces/index.ts

@@ -1,14 +1,14 @@
-export * from "./tax-calculation-strategy"
-export * from "./cart-completion-strategy"
-export * from "./tax-service"
-export * from "./transaction-base-service"
 export * from "./batch-job-strategy"
+export * from "./cart-completion-strategy"
 export * from "./file-service"
-export * from "./notification-service"
-export * from "./price-selection-strategy"
 export * from "./models/base-entity"
 export * from "./models/soft-deletable-entity"
-export * from "./search-service"
-export * from "./payment-service"
+export * from "./notification-service"
 export * from "./payment-processor"
+export * from "./payment-service"
+export * from "./price-selection-strategy"
+export * from "./search-service"
 export * from "./services"
+export * from "./tax-calculation-strategy"
+export * from "./tax-service"
+export * from "./transaction-base-service"

packages/medusa/src/interfaces/services/index.ts

@@ -1,4 +1,3 @@
 export * from "./cache"
-export * from "./event-bus"
-export * from "./stock-location"
 export * from "./inventory"
+export * from "./stock-location"

packages/medusa/src/loaders/redis.ts

@@ -1,8 +1,8 @@
 import { asValue } from "awilix"
-import RealRedis from "ioredis"
+import Redis from "ioredis"
 import FakeRedis from "ioredis-mock"
-import { ConfigModule, MedusaContainer } from "../types/global"
-import { Logger } from "../types/global"
+import { EOL } from "os"
+import { ConfigModule, Logger, MedusaContainer } from "../types/global"
 
 type Options = {
   container: MedusaContainer
@@ -10,19 +10,27 @@ type Options = {
   logger: Logger
 }
 
+// TODO: Will be removed when the strict dependency on Redis in the core is removed
 async function redisLoader({
   container,
   configModule,
   logger,
 }: Options): Promise<void> {
   if (configModule.projectConfig.redis_url) {
-    // Economical way of dealing with redis clients
-    const client = new RealRedis(configModule.projectConfig.redis_url)
-    const subscriber = new RealRedis(configModule.projectConfig.redis_url)
+    const redisClient = new Redis(configModule.projectConfig.redis_url, {
+      // Lazy connect to properly handle connection errors
+      lazyConnect: true,
+    })
+
+    try {
+      await redisClient.connect()
+      logger?.info(`Connection to Redis established`)
+    } catch (err) {
+      logger?.error(`An error occurred while connecting to Redis:${EOL} ${err}`)
+    }
 
     container.register({
-      redisClient: asValue(client),
-      redisSubscriber: asValue(subscriber),
+      redisClient: asValue(redisClient),
     })
   } else {
     if (process.env.NODE_ENV === "production") {
@@ -38,7 +46,6 @@ async function redisLoader({
 
     container.register({
       redisClient: asValue(client),
-      redisSubscriber: asValue(client),
     })
   }
 }

packages/medusa/src/loaders/search-index.ts

@@ -1,7 +1,6 @@
-import { MedusaContainer } from "../types/global"
-import { Logger } from "../types/global"
-import { EventBusService } from "../services"
 import { AbstractSearchService } from "../interfaces"
+import { EventBusService } from "../services"
+import { Logger, MedusaContainer } from "../types/global"
 
 export const SEARCH_INDEX_EVENT = "SEARCH_INDEX_EVENT"
 

packages/medusa/src/loaders/services.ts

@@ -1,8 +1,8 @@
 import { asFunction } from "awilix"
 import glob from "glob"
+import { isDefined } from "medusa-core-utils"
 import path from "path"
 import { ConfigModule, MedusaContainer } from "../types/global"
-import { isDefined } from "medusa-core-utils"
 import formatRegistrationName from "../utils/format-registration-name"
 
 type Options = {

packages/medusa/src/models/swap.ts

@@ -6,10 +6,12 @@ import {
   JoinColumn,
   ManyToOne,
   OneToMany,
-  OneToOne,
+  OneToOne
 } from "typeorm"
 import { DbAwareColumn, resolveDbType } from "../utils/db-aware-column"
 
+import { SoftDeletableEntity } from "../interfaces/models/soft-deletable-entity"
+import { generateEntityId } from "../utils/generate-entity-id"
 import { Address } from "./address"
 import { Cart } from "./cart"
 import { Fulfillment } from "./fulfillment"
@@ -18,8 +20,6 @@ import { Order } from "./order"
 import { Payment } from "./payment"
 import { Return } from "./return"
 import { ShippingMethod } from "./shipping-method"
-import { SoftDeletableEntity } from "../interfaces/models/soft-deletable-entity"
-import { generateEntityId } from "../utils/generate-entity-id"
 
 export enum SwapFulfillmentStatus {
   NOT_FULFILLED = "not_fulfilled",

packages/medusa/src/repositories/staged-job.ts

@@ -1,7 +1,6 @@
 import { QueryDeepPartialEntity } from "typeorm/query-builder/QueryPartialEntity"
 import { dataSource } from "../loaders/database"
 import { StagedJob } from "../models"
-import { rowSqlResultsToEntityTransformer } from "../utils/row-sql-results-to-entity-transformer"
 
 export const StagedJobRepository = dataSource.getRepository(StagedJob).extend({
   async insertBulk(jobToCreates: QueryDeepPartialEntity<StagedJob>[]) {
@@ -13,16 +12,13 @@ export const StagedJobRepository = dataSource.getRepository(StagedJob).extend({
     // TODO: remove if statement once this issue is resolved https://github.com/typeorm/typeorm/issues/9850
     if (!queryBuilder.connection.driver.isReturningSqlSupported("insert")) {
       const rawStagedJobs = await queryBuilder.execute()
-      return rawStagedJobs.generatedMaps
+      return rawStagedJobs.generatedMaps.map((d) =>
+        this.create(d)
+      ) as StagedJob[]
     }
 
     const rawStagedJobs = await queryBuilder.returning("*").execute()
-
-    return rowSqlResultsToEntityTransformer(
-      rawStagedJobs.raw,
-      queryBuilder,
-      this.queryRunner!
-    )
+    return rawStagedJobs.generatedMaps.map((d) => this.create(d))
   },
 })
 export default StagedJobRepository

packages/medusa/src/services/__mocks__/staged-job.js

@@ -0,0 +1,25 @@
+const job1 = {
+  event_name: "test",
+  data: {
+    id: "test",
+  },
+}
+
+const StagedJobServiceMock = {
+  withTransaction: function () {
+    return this
+  },
+  create: jest.fn().mockImplementation((data) => {
+    return Promise.resolve(data)
+  }),
+
+  list: jest.fn().mockImplementation((config) => {
+    return Promise.resolve([job1])
+  }),
+}
+
+const mock = jest.fn().mockImplementation(() => {
+  return StagedJobServiceMock
+})
+
+export default mock

packages/medusa/src/services/__tests__/batch-job.ts

@@ -1,168 +1,188 @@
 import { IdMap, MockManager, MockRepository } from "medusa-test-utils"
-import BatchJobService from "../batch-job"
-import { EventBusService } from "../index"
-import { BatchJobStatus } from "../../types/batch-job"
 import { BatchJob } from "../../models"
+import { BatchJobStatus } from "../../types/batch-job"
+import BatchJobService from "../batch-job"
+import EventBusService from "../event-bus"
 
 const eventBusServiceMock = {
   emit: jest.fn(),
-  withTransaction: function() {
+  withTransaction: function () {
     return this
   },
 } as unknown as EventBusService
 const batchJobRepositoryMock = MockRepository({
   create: jest.fn().mockImplementation((data) => {
     return Object.assign(new BatchJob(), data)
-  })
+  }),
 })
 
-describe('BatchJobService', () => {
+describe("BatchJobService", () => {
   const batchJobId_1 = IdMap.getId("batchJob_1")
   const batchJobService = new BatchJobService({
     manager: MockManager,
     eventBusService: eventBusServiceMock,
-    batchJobRepository: batchJobRepositoryMock
+    batchJobRepository: batchJobRepositoryMock,
   } as any)
 
   afterEach(() => {
     jest.clearAllMocks()
   })
 
-  describe('update status', () => {
+  describe("update status", () => {
     describe("confirm", () => {
-      it('should be able to confirm_processing a batch job to emit the processing event', async () => {
+      it("should be able to confirm_processing a batch job to emit the processing event", async () => {
         const batchJob = batchJobRepositoryMock.create({
           id: batchJobId_1,
           dry_run: true,
-          status: BatchJobStatus.PRE_PROCESSED
+          status: BatchJobStatus.PRE_PROCESSED,
         })
 
         const updatedBatchJob = await batchJobService.confirm(batchJob)
         expect(updatedBatchJob.processing_at).not.toBeTruthy()
-        expect(eventBusServiceMock.emit)
-          .toHaveBeenCalledWith(BatchJobService.Events.CONFIRMED, { id: batchJobId_1 })
+        expect(eventBusServiceMock.emit).toHaveBeenCalledWith(
+          BatchJobService.Events.CONFIRMED,
+          { id: batchJobId_1 }
+        )
       })
 
-      it('should not be able to confirm a batch job with the wrong status', async () => {
+      it("should not be able to confirm a batch job with the wrong status", async () => {
         const batchJob = batchJobRepositoryMock.create({
           id: batchJobId_1,
           dry_run: true,
-          status: BatchJobStatus.CREATED
+          status: BatchJobStatus.CREATED,
         })
 
-        const err = await batchJobService.confirm(batchJob)
-          .catch(e => e)
+        const err = await batchJobService.confirm(batchJob).catch((e) => e)
         expect(err).toBeTruthy()
-        expect(err.message).toBe("Cannot confirm processing for a batch job that is not pre processed")
+        expect(err.message).toBe(
+          "Cannot confirm processing for a batch job that is not pre processed"
+        )
         expect(eventBusServiceMock.emit).toHaveBeenCalledTimes(0)
       })
     })
 
     describe("complete", () => {
-      it('should be able to complete a batch job', async () => {
+      it("should be able to complete a batch job", async () => {
         const batchJob = batchJobRepositoryMock.create({
           id: batchJobId_1,
           dry_run: true,
-          status: BatchJobStatus.PROCESSING
+          status: BatchJobStatus.PROCESSING,
         })
 
         const updatedBatchJob = await batchJobService.complete(batchJob)
         expect(updatedBatchJob.completed_at).toBeTruthy()
-        expect(eventBusServiceMock.emit)
-          .toHaveBeenCalledWith(BatchJobService.Events.COMPLETED, { id: batchJobId_1 })
+        expect(eventBusServiceMock.emit).toHaveBeenCalledWith(
+          BatchJobService.Events.COMPLETED,
+          { id: batchJobId_1 }
+        )
 
         const batchJob2 = batchJobRepositoryMock.create({
           id: batchJobId_1,
           dry_run: false,
-          status: BatchJobStatus.PROCESSING
+          status: BatchJobStatus.PROCESSING,
         })
 
         const updatedBatchJob2 = await batchJobService.complete(batchJob2)
         expect(updatedBatchJob2.completed_at).toBeTruthy()
-        expect(eventBusServiceMock.emit)
-          .toHaveBeenCalledWith(BatchJobService.Events.COMPLETED, { id: batchJobId_1 })
+        expect(eventBusServiceMock.emit).toHaveBeenCalledWith(
+          BatchJobService.Events.COMPLETED,
+          { id: batchJobId_1 }
+        )
       })
 
-      it('should not be able to complete a batch job with the wrong status', async () => {
+      it("should not be able to complete a batch job with the wrong status", async () => {
         const batchJob = batchJobRepositoryMock.create({
           id: batchJobId_1,
           dry_run: true,
-          status: BatchJobStatus.CREATED
+          status: BatchJobStatus.CREATED,
         })
 
-        const err = await batchJobService.complete(batchJob)
-          .catch(e => e)
+        const err = await batchJobService.complete(batchJob).catch((e) => e)
         expect(err).toBeTruthy()
-        expect(err.message).toBe( `Cannot complete a batch job with status "${batchJob.status}". The batch job must be processing`)
+        expect(err.message).toBe(
+          `Cannot complete a batch job with status "${batchJob.status}". The batch job must be processing`
+        )
         expect(eventBusServiceMock.emit).toHaveBeenCalledTimes(0)
 
         const batchJob2 = batchJobRepositoryMock.create({
           id: batchJobId_1,
           dry_run: false,
-          status: BatchJobStatus.PRE_PROCESSED
+          status: BatchJobStatus.PRE_PROCESSED,
         })
 
-        const err2 = await batchJobService.complete(batchJob2)
-          .catch(e => e)
+        const err2 = await batchJobService.complete(batchJob2).catch((e) => e)
         expect(err2).toBeTruthy()
-        expect(err2.message).toBe( `Cannot complete a batch job with status "${batchJob2.status}". The batch job must be processing`)
+        expect(err2.message).toBe(
+          `Cannot complete a batch job with status "${batchJob2.status}". The batch job must be processing`
+        )
         expect(eventBusServiceMock.emit).toHaveBeenCalledTimes(0)
       })
     })
 
     describe("pre processed", () => {
-      it('should be able to mark as pre processed a batch job in dry_run', async () => {
+      it("should be able to mark as pre processed a batch job in dry_run", async () => {
         const batchJob = batchJobRepositoryMock.create({
           id: batchJobId_1,
           dry_run: true,
-          status: BatchJobStatus.CREATED
+          status: BatchJobStatus.CREATED,
         })
 
-        const updatedBatchJob = await batchJobService.setPreProcessingDone(batchJob)
+        const updatedBatchJob = await batchJobService.setPreProcessingDone(
+          batchJob
+        )
         expect(updatedBatchJob.pre_processed_at).toBeTruthy()
-        expect(eventBusServiceMock.emit)
-          .toHaveBeenCalledWith(BatchJobService.Events.PRE_PROCESSED, { id: batchJobId_1 })
+        expect(eventBusServiceMock.emit).toHaveBeenCalledWith(
+          BatchJobService.Events.PRE_PROCESSED,
+          { id: batchJobId_1 }
+        )
       })
 
-      it('should be able to mark as completed a batch job that has been pre processed but not in dry_run', async () => {
+      it("should be able to mark as completed a batch job that has been pre processed but not in dry_run", async () => {
         const batchJob = batchJobRepositoryMock.create({
           id: batchJobId_1,
           dry_run: false,
-          status: BatchJobStatus.CREATED
+          status: BatchJobStatus.CREATED,
         })
 
-        const updatedBatchJob = await batchJobService.setPreProcessingDone(batchJob)
+        const updatedBatchJob = await batchJobService.setPreProcessingDone(
+          batchJob
+        )
         expect(updatedBatchJob.pre_processed_at).toBeTruthy()
         expect(updatedBatchJob.confirmed_at).toBeTruthy()
         expect(eventBusServiceMock.emit).toHaveBeenCalledTimes(2)
-        expect(eventBusServiceMock.emit)
-          .toHaveBeenCalledWith(BatchJobService.Events.PRE_PROCESSED, { id: batchJobId_1 })
-        expect(eventBusServiceMock.emit)
-          .toHaveBeenLastCalledWith(BatchJobService.Events.CONFIRMED, { id: batchJobId_1 })
+        expect(eventBusServiceMock.emit).toHaveBeenCalledWith(
+          BatchJobService.Events.PRE_PROCESSED,
+          { id: batchJobId_1 }
+        )
+        expect(eventBusServiceMock.emit).toHaveBeenLastCalledWith(
+          BatchJobService.Events.CONFIRMED,
+          { id: batchJobId_1 }
+        )
       })
     })
 
     describe("cancel", () => {
-      it('should be able to cancel a batch job', async () => {
+      it("should be able to cancel a batch job", async () => {
         const batchJob = batchJobRepositoryMock.create({
           id: batchJobId_1,
-          status: BatchJobStatus.CREATED
+          status: BatchJobStatus.CREATED,
         })
 
         const updatedBatchJob = await batchJobService.cancel(batchJob)
         expect(updatedBatchJob.canceled_at).toBeTruthy()
-        expect(eventBusServiceMock.emit)
-          .toHaveBeenCalledWith(BatchJobService.Events.CANCELED, { id: batchJobId_1 })
+        expect(eventBusServiceMock.emit).toHaveBeenCalledWith(
+          BatchJobService.Events.CANCELED,
+          { id: batchJobId_1 }
+        )
       })
 
-      it('should not be able to cancel a batch job with the wrong status', async () => {
+      it("should not be able to cancel a batch job with the wrong status", async () => {
         const batchJob = batchJobRepositoryMock.create({
           id: batchJobId_1,
-          status: BatchJobStatus.COMPLETED
+          status: BatchJobStatus.COMPLETED,
         })
 
-        const err = await batchJobService.cancel(batchJob)
-          .catch(e => e)
+        const err = await batchJobService.cancel(batchJob).catch((e) => e)
         expect(err).toBeTruthy()
         expect(err.message).toBe("Cannot cancel completed batch job")
         expect(eventBusServiceMock.emit).toHaveBeenCalledTimes(0)
@@ -170,28 +190,33 @@ describe('BatchJobService', () => {
     })
 
     describe("processing", () => {
-      it('should be able to mark as processing a batch job', async () => {
+      it("should be able to mark as processing a batch job", async () => {
         const batchJob = batchJobRepositoryMock.create({
           id: batchJobId_1,
-          status: BatchJobStatus.CONFIRMED
+          status: BatchJobStatus.CONFIRMED,
         })
 
         const updatedBatchJob = await batchJobService.setProcessing(batchJob)
         expect(updatedBatchJob.processing_at).toBeTruthy()
-        expect(eventBusServiceMock.emit)
-          .toHaveBeenCalledWith(BatchJobService.Events.PROCESSING, { id: batchJobId_1 })
+        expect(eventBusServiceMock.emit).toHaveBeenCalledWith(
+          BatchJobService.Events.PROCESSING,
+          { id: batchJobId_1 }
+        )
       })
 
-      it('should not be able to mark as processing a batch job with the wrong status', async () => {
+      it("should not be able to mark as processing a batch job with the wrong status", async () => {
         const batchJob = batchJobRepositoryMock.create({
           id: batchJobId_1,
-          status: BatchJobStatus.COMPLETED
+          status: BatchJobStatus.COMPLETED,
         })
 
-        const err = await batchJobService.setProcessing(batchJob)
-          .catch(e => e)
+        const err = await batchJobService
+          .setProcessing(batchJob)
+          .catch((e) => e)
         expect(err).toBeTruthy()
-        expect(err.message).toBe("Cannot mark a batch job as processing if the status is different that confirmed")
+        expect(err.message).toBe(
+          "Cannot mark a batch job as processing if the status is different that confirmed"
+        )
         expect(eventBusServiceMock.emit).toHaveBeenCalledTimes(0)
       })
     })

packages/medusa/src/services/__tests__/currency.ts

@@ -1,36 +1,35 @@
 import { IdMap, MockManager, MockRepository } from "medusa-test-utils"
-import { EventBusService } from "../index"
-import { Currency } from "../../models"
-import CurrencyService from "../currency"
-import { FlagRouter } from "../../utils/flag-router"
 import TaxInclusivePricingFeatureFlag from "../../loaders/feature-flags/tax-inclusive-pricing"
+import { Currency } from "../../models"
+import { FlagRouter } from "../../utils/flag-router"
+import CurrencyService from "../currency"
+import EventBusService from "../event-bus"
 
 const currencyCode = IdMap.getId("currency-1")
 const eventBusServiceMock = {
   emit: jest.fn(),
-  withTransaction: function() {
+  withTransaction: function () {
     return this
   },
 } as unknown as EventBusService
 const currencyRepositoryMock = MockRepository({
   findOne: jest.fn().mockImplementation(() => {
     return {
-      code: currencyCode
+      code: currencyCode,
     }
   }),
   save: jest.fn().mockImplementation((data) => {
     return Object.assign(new Currency(), data)
-  })
+  }),
 })
 
-
-describe('CurrencyService', () => {
+describe("CurrencyService", () => {
   const currencyService = new CurrencyService({
     manager: MockManager,
     currencyRepository: currencyRepositoryMock,
     eventBusService: eventBusServiceMock,
     featureFlagRouter: new FlagRouter({
-      [TaxInclusivePricingFeatureFlag.key]: true
+      [TaxInclusivePricingFeatureFlag.key]: true,
     }),
   })
 

packages/medusa/src/services/__tests__/event-bus.js

@@ -1,536 +0,0 @@
-import Bull from "bull"
-import { MockManager, MockRepository } from "medusa-test-utils"
-import config from "../../loaders/config"
-import EventBusService from "../event-bus"
-
-jest.genMockFromModule("bull")
-jest.mock("bull")
-jest.mock("../../loaders/config")
-
-config.redisURI = "testhost"
-
-const loggerMock = {
-  info: jest.fn().mockReturnValue(console.log),
-  warn: jest.fn().mockReturnValue(console.log),
-  error: jest.fn().mockReturnValue(console.log),
-}
-
-describe("EventBusService", () => {
-  describe("constructor", () => {
-    let eventBus
-    beforeAll(() => {
-      jest.resetAllMocks()
-      const stagedJobRepository = MockRepository({
-        find: () => Promise.resolve([]),
-      })
-
-      eventBus = new EventBusService(
-        {
-          manager: MockManager,
-          stagedJobRepository,
-          logger: loggerMock,
-        },
-        {
-          projectConfig: {
-            redis_url: "localhost",
-          },
-        }
-      )
-    })
-
-    afterAll(async () => {
-      await eventBus.stopEnqueuer()
-    })
-
-    it("creates bull queue", () => {
-      expect(Bull).toHaveBeenCalledTimes(1)
-      expect(Bull).toHaveBeenCalledWith("EventBusService:queue", {
-        createClient: expect.any(Function),
-      })
-    })
-  })
-
-  describe("subscribe", () => {
-    let eventBus
-
-    beforeEach(() => {
-      jest.resetAllMocks()
-
-      eventBus = new EventBusService(
-        {
-          manager: MockManager,
-          logger: loggerMock,
-        },
-        {
-          projectConfig: {
-            redis_url: "localhost",
-          },
-        }
-      )
-    })
-
-    afterAll(async () => {
-      await eventBus.stopEnqueuer()
-    })
-
-    it("throws when subscriber already exists", async () => {
-      expect.assertions(1)
-
-      eventBus.subscribe("eventName", () => "test", {
-        subscriberId: "my-subscriber",
-      })
-
-      try {
-        eventBus.subscribe("eventName", () => "new", {
-          subscriberId: "my-subscriber",
-        })
-      } catch (error) {
-        expect(error.message).toBe(
-          "Subscriber with id my-subscriber already exists"
-        )
-      }
-    })
-
-    it("successfully adds subscriber", () => {
-      eventBus.subscribe("eventName", () => "test", {
-        subscriberId: "my-subscriber",
-      })
-
-      expect(eventBus.eventToSubscribersMap_.get("eventName").length).toEqual(1)
-    })
-
-    describe("fails when adding non-function subscriber", () => {
-      let eventBus
-      beforeAll(() => {
-        jest.resetAllMocks()
-        const stagedJobRepository = MockRepository({
-          find: () => Promise.resolve([]),
-        })
-
-        eventBus = new EventBusService({
-          manager: MockManager,
-          stagedJobRepository,
-          logger: loggerMock,
-        })
-      })
-      afterAll(async () => {
-        await eventBus.stopEnqueuer()
-      })
-
-      it("rejects subscriber with error", () => {
-        try {
-          eventBus.subscribe("eventName", 1234)
-        } catch (err) {
-          expect(err.message).toEqual("Subscriber must be a function")
-        }
-      })
-    })
-  })
-
-  describe("emit", () => {
-    const eventName = "eventName"
-    const defaultOptions = {
-      attempts: 1,
-      removeOnComplete: true,
-    }
-
-    const data = { hi: "1234" }
-    const bulkData = [{ hi: "1234" }, { hi: "12345" }]
-
-    const mockManager = MockManager
-
-    describe("successfully adds job to queue", () => {
-      let eventBus
-      let stagedJobRepository
-
-      beforeEach(() => {
-        stagedJobRepository = MockRepository({
-          insertBulk: async (data) => data,
-          create: (data) => data,
-        })
-
-        eventBus = new EventBusService(
-          {
-            logger: loggerMock,
-            manager: mockManager,
-            stagedJobRepository,
-          },
-          {
-            projectConfig: {
-              redis_url: "localhost",
-            },
-          }
-        )
-
-        eventBus.queue_.addBulk.mockImplementationOnce(() => "hi")
-      })
-
-      afterEach(async () => {
-        await eventBus.stopEnqueuer()
-        jest.clearAllMocks()
-      })
-
-      it("calls queue.addBulk", async () => {
-        await eventBus.emit(eventName, data)
-
-        expect(eventBus.queue_.addBulk).toHaveBeenCalled()
-        expect(eventBus.queue_.addBulk).toHaveBeenCalledWith([
-          {
-            data: {
-              data,
-              eventName,
-            },
-            opts: defaultOptions,
-          },
-        ])
-      })
-
-      it("calls stagedJob repository insertBulk", async () => {
-        await eventBus.withTransaction(mockManager).emit(eventName, data)
-
-        expect(stagedJobRepository.create).toHaveBeenCalled()
-        expect(stagedJobRepository.create).toHaveBeenCalledWith({
-          event_name: eventName,
-          data: data,
-          options: defaultOptions,
-        })
-
-        expect(stagedJobRepository.insertBulk).toHaveBeenCalled()
-        expect(stagedJobRepository.insertBulk).toHaveBeenCalledWith([
-          {
-            event_name: eventName,
-            data,
-            options: defaultOptions,
-          },
-        ])
-      })
-    })
-
-    describe("successfully adds jobs in bulk to queue", () => {
-      let eventBus
-      let stagedJobRepository
-
-      beforeEach(() => {
-        stagedJobRepository = MockRepository({
-          insertBulk: async (data) => data,
-          create: (data) => data,
-        })
-
-        eventBus = new EventBusService(
-          {
-            logger: loggerMock,
-            manager: mockManager,
-            stagedJobRepository,
-          },
-          {
-            projectConfig: {
-              redis_url: "localhost",
-            },
-          }
-        )
-
-        eventBus.queue_.addBulk.mockImplementationOnce(() => "hi")
-      })
-
-      afterEach(async () => {
-        jest.clearAllMocks()
-        await eventBus.stopEnqueuer()
-      })
-
-      it("calls queue.addBulk", async () => {
-        await eventBus.emit([
-          { eventName, data: bulkData[0] },
-          { eventName, data: bulkData[1] },
-        ])
-
-        expect(eventBus.queue_.addBulk).toHaveBeenCalledTimes(1)
-        expect(eventBus.queue_.addBulk).toHaveBeenCalledWith([
-          {
-            data: {
-              data: bulkData[0],
-              eventName,
-            },
-            opts: defaultOptions,
-          },
-          {
-            data: {
-              data: bulkData[1],
-              eventName,
-            },
-            opts: defaultOptions,
-          },
-        ])
-      })
-
-      it("calls stagedJob repository insertBulk", async () => {
-        await eventBus.withTransaction(mockManager).emit([
-          { eventName, data: bulkData[0] },
-          { eventName, data: bulkData[1] },
-        ])
-
-        expect(stagedJobRepository.create).toHaveBeenCalledTimes(2)
-        expect(stagedJobRepository.create).toHaveBeenNthCalledWith(1, {
-          data: bulkData[0],
-          event_name: eventName,
-          options: defaultOptions,
-        })
-        expect(stagedJobRepository.create).toHaveBeenNthCalledWith(2, {
-          data: bulkData[1],
-          event_name: eventName,
-          options: defaultOptions,
-        })
-
-        expect(stagedJobRepository.insertBulk).toHaveBeenCalledTimes(1)
-        expect(stagedJobRepository.insertBulk).toHaveBeenCalledWith([
-          {
-            data: bulkData[0],
-            event_name: eventName,
-            options: defaultOptions,
-          },
-          {
-            data: bulkData[1],
-            event_name: eventName,
-            options: defaultOptions,
-          },
-        ])
-      })
-    })
-
-    describe("successfully adds job to queue with global options", () => {
-      let eventBus
-      let stagedJobRepository
-
-      beforeEach(() => {
-        stagedJobRepository = MockRepository({
-          insertBulk: async (data) => data,
-          create: (data) => data,
-        })
-
-        eventBus = new EventBusService(
-          {
-            logger: loggerMock,
-            manager: mockManager,
-            stagedJobRepository,
-          },
-          {
-            projectConfig: {
-              event_options: { removeOnComplete: 10 },
-              redis_url: "localhost",
-            },
-          }
-        )
-
-        eventBus.queue_.addBulk.mockImplementationOnce(() => "hi")
-
-        eventBus.emit(eventName, data)
-      })
-
-      afterEach(async () => {
-        jest.clearAllMocks()
-        await eventBus.stopEnqueuer()
-      })
-
-      it("calls queue.addBulk", () => {
-        expect(eventBus.queue_.addBulk).toHaveBeenCalled()
-        expect(eventBus.queue_.addBulk).toHaveBeenCalledWith([
-          {
-            data: {
-              data,
-              eventName,
-            },
-            opts: { removeOnComplete: 10, attempts: 1 },
-          },
-        ])
-      })
-    })
-
-    describe("successfully adds job to queue with default options", () => {
-      let eventBus
-      let stagedJobRepository
-
-      beforeEach(() => {
-        stagedJobRepository = MockRepository({
-          insertBulk: async (data) => data,
-          create: (data) => data,
-        })
-
-        eventBus = new EventBusService(
-          {
-            logger: loggerMock,
-            manager: mockManager,
-            stagedJobRepository,
-          },
-          {
-            projectConfig: {
-              redis_url: "localhost",
-            },
-          }
-        )
-
-        eventBus.queue_.addBulk.mockImplementationOnce(() => "hi")
-
-        eventBus.emit(eventName, data)
-      })
-
-      afterEach(async () => {
-        jest.clearAllMocks()
-        await eventBus.stopEnqueuer()
-      })
-
-      it("calls queue.addBulk", () => {
-        expect(eventBus.queue_.addBulk).toHaveBeenCalled()
-        expect(eventBus.queue_.addBulk).toHaveBeenCalledWith([
-          {
-            data: {
-              data,
-              eventName,
-            },
-            opts: { removeOnComplete: true, attempts: 1 },
-          },
-        ])
-      })
-    })
-
-    describe("successfully adds job to queue with local options and global options merged", () => {
-      let eventBus
-      let stagedJobRepository
-
-      beforeEach(() => {
-        stagedJobRepository = MockRepository({
-          insertBulk: async (data) => data,
-          create: (data) => data,
-        })
-
-        eventBus = new EventBusService(
-          {
-            logger: loggerMock,
-            manager: MockManager,
-            stagedJobRepository,
-          },
-          {
-            projectConfig: {
-              event_options: { removeOnComplete: 10 },
-              redis_url: "localhost",
-            },
-          }
-        )
-
-        eventBus.queue_.addBulk.mockImplementationOnce(() => "hi")
-
-        eventBus.emit(eventName, data, {
-          attempts: 10,
-          delay: 1000,
-          backoff: { type: "exponential" },
-        })
-      })
-
-      afterEach(async () => {
-        jest.clearAllMocks()
-        await eventBus.stopEnqueuer()
-      })
-
-      it("calls queue.add", () => {
-        expect(eventBus.queue_.addBulk).toHaveBeenCalled()
-        expect(eventBus.queue_.addBulk).toHaveBeenCalledWith([
-          {
-            data: {
-              data,
-              eventName,
-            },
-            opts: {
-              removeOnComplete: 10, // global option
-              attempts: 10, // local option
-              delay: 1000, // local option
-              backoff: { type: "exponential" }, // local option
-            },
-          },
-        ])
-      })
-    })
-  })
-
-  describe("worker", () => {
-    let eventBus
-    let result
-    describe("successfully runs the worker", () => {
-      beforeAll(async () => {
-        jest.resetAllMocks()
-        const stagedJobRepository = MockRepository({
-          find: () => Promise.resolve([]),
-        })
-
-        eventBus = new EventBusService({
-          manager: MockManager,
-          stagedJobRepository,
-          logger: loggerMock,
-        })
-        eventBus.subscribe("eventName", () => Promise.resolve("hi"))
-        result = await eventBus.worker_({
-          data: { eventName: "eventName", data: {} },
-        })
-      })
-
-      afterAll(async () => {
-        await eventBus.stopEnqueuer()
-      })
-      it("calls logger", () => {
-        expect(loggerMock.info).toHaveBeenCalled()
-        expect(loggerMock.info).toHaveBeenCalledWith(
-          "Processing eventName which has 1 subscribers"
-        )
-      })
-
-      it("returns array with hi", async () => {
-        expect(result).toEqual(["hi"])
-      })
-    })
-
-    describe("continue if errors occur", () => {
-      let eventBus
-      beforeAll(async () => {
-        jest.resetAllMocks()
-
-        eventBus = new EventBusService({
-          manager: MockManager,
-          logger: loggerMock,
-        })
-
-        eventBus.subscribe("eventName", () => Promise.resolve("hi"))
-        eventBus.subscribe("eventName", () => Promise.resolve("hi2"))
-        eventBus.subscribe("eventName", () => Promise.resolve("hi3"))
-        eventBus.subscribe("eventName", () => Promise.reject("fail1"))
-        eventBus.subscribe("eventName", () => Promise.reject("fail2"))
-        eventBus.subscribe("eventName", () => Promise.reject("fail3"))
-
-        result = await eventBus.worker_({
-          data: { eventName: "eventName", data: {} },
-          update: (data) => data,
-          opts: { attempts: 1 },
-        })
-      })
-
-      afterAll(async () => {
-        await eventBus.stopEnqueuer()
-      })
-
-      it("calls logger warn on rejections", () => {
-        expect(loggerMock.warn).toHaveBeenCalledTimes(4)
-        expect(loggerMock.warn).toHaveBeenCalledWith(
-          "An error occurred while processing eventName: fail1"
-        )
-        expect(loggerMock.warn).toHaveBeenCalledWith(
-          "An error occurred while processing eventName: fail2"
-        )
-        expect(loggerMock.warn).toHaveBeenCalledWith(
-          "An error occurred while processing eventName: fail3"
-        )
-      })
-
-      it("calls logger warn from retry not kicking in", () => {
-        expect(loggerMock.warn).toHaveBeenCalledWith(
-          "One or more subscribers of eventName failed. Retrying is not configured. Use 'attempts' option when emitting events."
-        )
-      })
-    })
-  })
-})

packages/medusa/src/services/__tests__/job-scheduler.js

@@ -1,12 +1,9 @@
-import Bull from "bull"
-import config from "../../loaders/config"
+import { Queue } from "bullmq"
 import JobSchedulerService from "../job-scheduler"
 
-jest.genMockFromModule("bull")
-jest.mock("bull")
-jest.mock("../../loaders/config")
-
-config.redisURI = "testhost"
+jest.genMockFromModule("bullmq")
+jest.mock("bullmq")
+jest.mock("ioredis")
 
 const loggerMock = {
   info: jest.fn().mockReturnValue(console.log),
@@ -15,90 +12,112 @@ const loggerMock = {
 }
 
 describe("JobSchedulerService", () => {
-  describe("constructor", () => {
-    let jobScheduler
-    beforeAll(() => {
-      jest.resetAllMocks()
+  let scheduler
 
-      jobScheduler = new JobSchedulerService({
-        logger: loggerMock,
-      })
+  describe("constructor", () => {
+    beforeAll(() => {
+      jest.clearAllMocks()
+
+      scheduler = new JobSchedulerService(
+        {
+          logger: loggerMock,
+        },
+        {
+          projectConfig: {
+            redis_url: "testhost",
+          },
+        }
+      )
     })
 
     it("creates bull queue", () => {
-      expect(Bull).toHaveBeenCalledTimes(1)
-      expect(Bull).toHaveBeenCalledWith("scheduled-jobs:queue", {
-        createClient: expect.any(Function),
+      expect(Queue).toHaveBeenCalledTimes(1)
+      expect(Queue).toHaveBeenCalledWith("scheduled-jobs:queue", {
+        connection: expect.any(Object),
+        prefix: "JobSchedulerService",
       })
     })
   })
 
   describe("create", () => {
     let jobScheduler
-    describe("successfully creates scheduled job and add handler", () => {
-      beforeAll(() => {
-        jest.resetAllMocks()
 
-        jobScheduler = new JobSchedulerService({
+    beforeAll(async () => {
+      jest.resetAllMocks()
+
+      jobScheduler = new JobSchedulerService(
+        {
           logger: loggerMock,
-        })
-
-        jobScheduler.create(
-          "eventName",
-          { data: "test" },
-          "* * * * *",
-          () => "test"
-        )
-      })
-
-      it("added the handler to the job queue", () => {
-        expect(jobScheduler.handlers_.get("eventName").length).toEqual(1)
-        expect(jobScheduler.queue_.add).toHaveBeenCalledWith(
-          {
-            eventName: "eventName",
-            data: { data: "test" },
+        },
+        {
+          projectConfig: {
+            redis_url: "testhost",
           },
-          {
-            repeat: { cron: "* * * * *" },
-          }
-        )
+        }
+      )
+
+      await jobScheduler.create(
+        "eventName",
+        { data: "test" },
+        "* * * * *",
+        () => "test"
+      )
+    })
+
+    it("added the handler to the job queue", () => {
+      expect(jobScheduler.handlers_.get("eventName").length).toEqual(1)
+      expect(jobScheduler.queue_.add).toHaveBeenCalledWith(
+        "eventName",
+        {
+          eventName: "eventName",
+          data: { data: "test" },
+        },
+        {
+          repeat: { pattern: "* * * * *" },
+        }
+      )
+    })
+  })
+
+  describe("scheduledJobWorker", () => {
+    let jobScheduler
+    let result
+
+    beforeAll(async () => {
+      jest.resetAllMocks()
+
+      jobScheduler = new JobSchedulerService(
+        {
+          logger: loggerMock,
+        },
+        {
+          projectConfig: {
+            redis_url: "testhost",
+          },
+        }
+      )
+
+      await jobScheduler.create(
+        "eventName",
+        { data: "test" },
+        "* * * * *",
+        () => Promise.resolve("hi")
+      )
+
+      result = await jobScheduler.scheduledJobsWorker({
+        data: { eventName: "eventName", data: {} },
       })
     })
 
-    describe("scheduledJobWorker", () => {
-      let jobScheduler
-      let result
-      describe("successfully runs the worker", () => {
-        beforeAll(async () => {
-          jest.resetAllMocks()
+    it("calls logger", () => {
+      expect(loggerMock.info).toHaveBeenCalled()
+      expect(loggerMock.info).toHaveBeenCalledWith(
+        "Processing scheduled job: eventName"
+      )
+    })
 
-          jobScheduler = new JobSchedulerService(
-            {
-              logger: loggerMock,
-            },
-            {}
-          )
-
-          jobScheduler.create("eventName", { data: "test" }, "* * * * *", () =>
-            Promise.resolve("hi")
-          )
-
-          result = await jobScheduler.scheduledJobsWorker({
-            data: { eventName: "eventName", data: {} },
-          })
-        })
-
-        it("calls logger", () => {
-          expect(loggerMock.info).toHaveBeenCalled()
-          expect(loggerMock.info).toHaveBeenCalledWith(
-            "Processing scheduled job: eventName"
-          )
-        })
-
-        it("returns array with hi", async () => {
-          expect(result).toEqual(["hi"])
-        })
-      })
+    it("returns array with hi", async () => {
+      expect(result).toEqual(["hi"])
     })
   })
 })

packages/medusa/src/services/__tests__/order-edit-item-change.ts

@@ -1,7 +1,12 @@
 import { IdMap, MockManager, MockRepository } from "medusa-test-utils"
-import { EventBusService, LineItemService, OrderEditItemChangeService, TaxProviderService, } from "../index"
-import { EventBusServiceMock } from "../__mocks__/event-bus"
 import { In } from "typeorm"
+import EventBusService from "../event-bus"
+import {
+  LineItemService,
+  OrderEditItemChangeService,
+  TaxProviderService
+} from "../index"
+import { EventBusServiceMock } from "../__mocks__/event-bus"
 import { LineItemServiceMock } from "../__mocks__/line-item"
 
 const taxProviderServiceMock = {

packages/medusa/src/services/__tests__/order-edit.ts

@@ -1,7 +1,7 @@
 import { IdMap, MockManager, MockRepository } from "medusa-test-utils"
 import { OrderEditItemChangeType, OrderEditStatus } from "../../models"
+import EventBusService from "../event-bus"
 import {
-  EventBusService,
   LineItemService,
   NewTotalsService,
   OrderEditItemChangeService,

packages/medusa/src/services/__tests__/payment-collection.ts

@@ -1,10 +1,22 @@
 import { IdMap, MockManager, MockRepository } from "medusa-test-utils"
-import { CustomerService, EventBusService, PaymentCollectionService, PaymentProviderService, } from "../index"
-import { PaymentCollection, PaymentCollectionStatus, PaymentCollectionType, } from "../../models"
-import { EventBusServiceMock } from "../__mocks__/event-bus"
-import { DefaultProviderMock, PaymentProviderServiceMock, } from "../__mocks__/payment-provider"
-import { CustomerServiceMock } from "../__mocks__/customer"
+import {
+  PaymentCollection,
+  PaymentCollectionStatus,
+  PaymentCollectionType
+} from "../../models"
 import { PaymentCollectionsSessionsBatchInput } from "../../types/payment-collection"
+import EventBusService from "../event-bus"
+import {
+  CustomerService,
+  PaymentCollectionService,
+  PaymentProviderService
+} from "../index"
+import { CustomerServiceMock } from "../__mocks__/customer"
+import { EventBusServiceMock } from "../__mocks__/event-bus"
+import {
+  DefaultProviderMock,
+  PaymentProviderServiceMock
+} from "../__mocks__/payment-provider"
 
 describe("PaymentCollectionService", () => {
   afterEach(() => {
@@ -414,9 +426,7 @@ describe("PaymentCollectionService", () => {
         "lebron"
       )
 
-      expect(PaymentProviderServiceMock.createSession).toHaveBeenCalledTimes(
-        1
-      )
+      expect(PaymentProviderServiceMock.createSession).toHaveBeenCalledTimes(1)
       expect(CustomerServiceMock.retrieve).toHaveBeenCalledTimes(1)
       expect(paymentCollectionRepository.save).toHaveBeenCalledTimes(1)
     })
@@ -430,12 +440,8 @@ describe("PaymentCollectionService", () => {
         "lebron"
       )
 
-      expect(PaymentProviderServiceMock.createSession).toHaveBeenCalledTimes(
-        0
-      )
-      expect(PaymentProviderServiceMock.updateSession).toHaveBeenCalledTimes(
-        1
-      )
+      expect(PaymentProviderServiceMock.createSession).toHaveBeenCalledTimes(0)
+      expect(PaymentProviderServiceMock.updateSession).toHaveBeenCalledTimes(1)
       expect(CustomerServiceMock.retrieve).toHaveBeenCalledTimes(1)
       expect(paymentCollectionRepository.save).toHaveBeenCalledTimes(1)
     })
@@ -453,15 +459,9 @@ describe("PaymentCollectionService", () => {
         IdMap.getId("lebron")
       )
 
-      expect(PaymentProviderServiceMock.createSession).toHaveBeenCalledTimes(
-        1
-      )
-      expect(PaymentProviderServiceMock.updateSession).toHaveBeenCalledTimes(
-        0
-      )
-      expect(paymentCollectionRepository.delete).toHaveBeenCalledTimes(
-        1
-      )
+      expect(PaymentProviderServiceMock.createSession).toHaveBeenCalledTimes(1)
+      expect(PaymentProviderServiceMock.updateSession).toHaveBeenCalledTimes(0)
+      expect(paymentCollectionRepository.delete).toHaveBeenCalledTimes(1)
 
       expect(paymentCollectionRepository.save).toHaveBeenCalledTimes(1)
     })
@@ -508,9 +508,7 @@ describe("PaymentCollectionService", () => {
         "customer1"
       )
 
-      expect(PaymentProviderServiceMock.createSession).toHaveBeenCalledTimes(
-        0
-      )
+      expect(PaymentProviderServiceMock.createSession).toHaveBeenCalledTimes(0)
       expect(ret).rejects.toThrow(
         `The sum of sessions is not equal to 100 on Payment Collection`
       )
@@ -531,9 +529,7 @@ describe("PaymentCollectionService", () => {
         "customer1"
       )
 
-      expect(PaymentProviderServiceMock.createSession).toHaveBeenCalledTimes(
-        0
-      )
+      expect(PaymentProviderServiceMock.createSession).toHaveBeenCalledTimes(0)
       expect(multiRet).rejects.toThrow(
         `The sum of sessions is not equal to 100 on Payment Collection`
       )
@@ -580,12 +576,8 @@ describe("PaymentCollectionService", () => {
         "lebron"
       )
 
-      expect(PaymentProviderServiceMock.createSession).toHaveBeenCalledTimes(
-        1
-      )
-      expect(PaymentProviderServiceMock.updateSession).toHaveBeenCalledTimes(
-        1
-      )
+      expect(PaymentProviderServiceMock.createSession).toHaveBeenCalledTimes(1)
+      expect(PaymentProviderServiceMock.updateSession).toHaveBeenCalledTimes(1)
       expect(CustomerServiceMock.retrieve).toHaveBeenCalledTimes(1)
       expect(paymentCollectionRepository.save).toHaveBeenCalledTimes(1)
     })
@@ -603,15 +595,9 @@ describe("PaymentCollectionService", () => {
         IdMap.getId("lebron")
       )
 
-      expect(PaymentProviderServiceMock.createSession).toHaveBeenCalledTimes(
-        1
-      )
-      expect(PaymentProviderServiceMock.updateSession).toHaveBeenCalledTimes(
-        0
-      )
-      expect(paymentCollectionRepository.delete).toHaveBeenCalledTimes(
-        1
-      )
+      expect(PaymentProviderServiceMock.createSession).toHaveBeenCalledTimes(1)
+      expect(PaymentProviderServiceMock.updateSession).toHaveBeenCalledTimes(0)
+      expect(paymentCollectionRepository.delete).toHaveBeenCalledTimes(1)
 
       expect(paymentCollectionRepository.save).toHaveBeenCalledTimes(1)
     })
@@ -623,13 +609,9 @@ describe("PaymentCollectionService", () => {
         "customer1"
       )
 
-      expect(
-        PaymentProviderServiceMock.refreshSession
-      ).toHaveBeenCalledTimes(1)
+      expect(PaymentProviderServiceMock.refreshSession).toHaveBeenCalledTimes(1)
       expect(DefaultProviderMock.deletePayment).toHaveBeenCalledTimes(1)
-      expect(PaymentProviderServiceMock.createSession).toHaveBeenCalledTimes(
-        1
-      )
+      expect(PaymentProviderServiceMock.createSession).toHaveBeenCalledTimes(1)
     })
 
     it("should throw to refresh a payment session that doesn't exist", async () => {
@@ -689,9 +671,7 @@ describe("PaymentCollectionService", () => {
       expect(PaymentProviderServiceMock.authorizePayment).toHaveBeenCalledTimes(
         2
       )
-      expect(PaymentProviderServiceMock.createPayment).toHaveBeenCalledTimes(
-        2
-      )
+      expect(PaymentProviderServiceMock.createPayment).toHaveBeenCalledTimes(2)
       expect(EventBusServiceMock.emit).toHaveBeenCalledTimes(1)
     })
 
@@ -704,9 +684,7 @@ describe("PaymentCollectionService", () => {
       expect(PaymentProviderServiceMock.authorizePayment).toHaveBeenCalledTimes(
         1
       )
-      expect(PaymentProviderServiceMock.createPayment).toHaveBeenCalledTimes(
-        1
-      )
+      expect(PaymentProviderServiceMock.createPayment).toHaveBeenCalledTimes(1)
       expect(EventBusServiceMock.emit).toHaveBeenCalledTimes(1)
     })
 
@@ -719,9 +697,7 @@ describe("PaymentCollectionService", () => {
       expect(PaymentProviderServiceMock.authorizePayment).toHaveBeenCalledTimes(
         0
       )
-      expect(PaymentProviderServiceMock.createPayment).toHaveBeenCalledTimes(
-        0
-      )
+      expect(PaymentProviderServiceMock.createPayment).toHaveBeenCalledTimes(0)
       expect(EventBusServiceMock.emit).toHaveBeenCalledTimes(0)
     })
   })

packages/medusa/src/services/__tests__/product-category.ts

@@ -1,13 +1,10 @@
 import { IdMap, MockManager as manager } from "medusa-test-utils"
-import ProductCategoryService from "../product-category"
-import { EventBusService } from "../"
+import { EventBusService, ProductCategoryService } from "../"
 import {
   invalidProdCategoryId,
   productCategoryRepositoryMock as productCategoryRepository,
   validProdCategoryId,
-  validProdCategoryIdWithChildren,
-  validProdCategoryWithSiblings,
-  validProdCategoryRankChange
+  validProdCategoryIdWithChildren, validProdCategoryRankChange, validProdCategoryWithSiblings
 } from "../../repositories/__mocks__/product-category"
 import { tempReorderRank } from "../../types/product-category"
 import { EventBusServiceMock as eventBusService } from "../__mocks__/event-bus"
@@ -74,7 +71,9 @@ describe("ProductCategoryService", () => {
       const [result, count] = await productCategoryService
         .listAndCount({ q: IdMap.getId(invalidProdCategoryId) })
 
-      expect(productCategoryRepository.getFreeTextSearchResultsAndCount).toHaveBeenCalledTimes(1)
+      expect(
+        productCategoryRepository.getFreeTextSearchResultsAndCount
+      ).toHaveBeenCalledTimes(1)
       expect(result).toEqual([])
       expect(count).toEqual(0)
     })
@@ -115,8 +114,9 @@ describe("ProductCategoryService", () => {
 
       expect(eventBusService.emit).toHaveBeenCalledTimes(1)
       expect(eventBusService.emit).toHaveBeenCalledWith(
-        "product-category.created", {
-          "id": IdMap.getId(validProdCategoryId)
+        "product-category.created",
+        {
+          id: IdMap.getId(validProdCategoryId),
         }
       )
     })
@@ -129,7 +129,9 @@ describe("ProductCategoryService", () => {
       )
 
       expect(productCategoryRepository.delete).toBeCalledTimes(1)
-      expect(productCategoryRepository.delete).toBeCalledWith(IdMap.getId(validProdCategoryId))
+      expect(productCategoryRepository.delete).toBeCalledWith(
+        IdMap.getId(validProdCategoryId)
+      )
     })
 
     it("returns without failure on not-found product category id", async () => {
@@ -156,8 +158,9 @@ describe("ProductCategoryService", () => {
 
       expect(eventBusService.emit).toHaveBeenCalledTimes(1)
       expect(eventBusService.emit).toHaveBeenCalledWith(
-        "product-category.deleted", {
-          "id": IdMap.getId(validProdCategoryId)
+        "product-category.deleted",
+        {
+          id: IdMap.getId(validProdCategoryId),
         }
       )
     })
@@ -182,11 +185,9 @@ describe("ProductCategoryService", () => {
 
   describe("update", () => {
     it("successfully updates a product category", async () => {
-      await productCategoryService.update(
-        IdMap.getId(validProdCategoryId), {
-          name: "bathrobes",
-        }
-      )
+      await productCategoryService.update(IdMap.getId(validProdCategoryId), {
+        name: "bathrobes",
+      })
 
       expect(productCategoryRepository.save).toHaveBeenCalledTimes(1)
       expect(productCategoryRepository.save).toHaveBeenCalledWith(
@@ -221,28 +222,32 @@ describe("ProductCategoryService", () => {
     })
 
     it("fails on not-found Id product category", async () => {
-      const error = await productCategoryService.update(
-        IdMap.getId(invalidProdCategoryId), {
+      const error = await productCategoryService
+        .update(IdMap.getId(invalidProdCategoryId), {
           name: "bathrobes",
-        }
-      ).catch(e => e)
+        })
+        .catch((e) => e)
 
       expect(error.message).toBe(
-        `ProductCategory with id: ${IdMap.getId(invalidProdCategoryId)} was not found`
+        `ProductCategory with id: ${IdMap.getId(
+          invalidProdCategoryId
+        )} was not found`
       )
     })
 
     it("emits a message on successful update", async () => {
       const result = await productCategoryService.update(
-        IdMap.getId(validProdCategoryId), {
+        IdMap.getId(validProdCategoryId),
+        {
           name: "bathrobes",
         }
       )
 
       expect(eventBusService.emit).toHaveBeenCalledTimes(1)
       expect(eventBusService.emit).toHaveBeenCalledWith(
-        "product-category.updated", {
-          "id": IdMap.getId(validProdCategoryId)
+        "product-category.updated",
+        {
+          id: IdMap.getId(validProdCategoryId),
         }
       )
     })

packages/medusa/src/services/__tests__/publishable-api-key.ts

@@ -1,8 +1,8 @@
 import { IdMap, MockManager, MockRepository } from "medusa-test-utils"
+import EventBusService from "../event-bus"
 
-import { EventBusService } from "../index"
-import { EventBusServiceMock } from "../__mocks__/event-bus"
 import PublishableApiKeyService from "../publishable-api-key"
+import { EventBusServiceMock } from "../__mocks__/event-bus"
 
 const pubKeyToRetrieve = {
   id: IdMap.getId("pub-key-to-retrieve"),

packages/medusa/src/services/__tests__/region.ts

@@ -1,8 +1,8 @@
 import { IdMap, MockManager, MockRepository } from "medusa-test-utils"
 import { CreateRegionInput } from "../../types/region"
 import { FlagRouter } from "../../utils/flag-router"
+import EventBusService from "../event-bus"
 import {
-  EventBusService,
   FulfillmentProviderService,
   PaymentProviderService,
   StoreService,

packages/medusa/src/services/__tests__/sales-channel.ts

@@ -1,9 +1,7 @@
 import { IdMap, MockManager, MockRepository } from "medusa-test-utils"
+import { EventBusService, StoreService } from "../index"
 import SalesChannelService from "../sales-channel"
 import { EventBusServiceMock } from "../__mocks__/event-bus"
-import { EventBusService, StoreService } from "../index"
-import { FindManyOptions, FindOneOptions } from "typeorm"
-import { SalesChannel } from "../../models"
 import { store, StoreServiceMock } from "../__mocks__/store"
 
 describe("SalesChannelService", () => {

packages/medusa/src/services/__tests__/swap.ts

@@ -1,14 +1,10 @@
 import { IdMap, MockManager, MockRepository } from "medusa-test-utils"
-import SwapService from "../swap"
-import {
-  ProductVariantInventoryServiceMock
-} from "../__mocks__/product-variant-inventory"
-import {
-  LineItemAdjustmentServiceMock
-} from "../__mocks__/line-item-adjustment"
+import { Order, Swap } from "../../models"
+import { SwapRepository } from "../../repositories/swap"
+import CartService from "../cart"
+import EventBusService from "../event-bus"
 import {
   CustomShippingOptionService,
-  EventBusService,
   FulfillmentService,
   LineItemService,
   OrderService,
@@ -16,12 +12,16 @@ import {
   ProductVariantInventoryService,
   ReturnService,
   ShippingOptionService,
-  TotalsService,
+  TotalsService
 } from "../index"
-import CartService from "../cart"
-import { Order, Swap } from "../../models"
-import { SwapRepository } from "../../repositories/swap"
 import LineItemAdjustmentService from "../line-item-adjustment"
+import SwapService from "../swap"
+import {
+  LineItemAdjustmentServiceMock
+} from "../__mocks__/line-item-adjustment"
+import {
+  ProductVariantInventoryServiceMock
+} from "../__mocks__/product-variant-inventory"
 
 /* ******************** DEFAULT REPOSITORY MOCKS ******************** */
 

packages/medusa/src/services/batch-job.ts

@@ -1,4 +1,7 @@
+import { Request } from "express"
+import { isDefined, MedusaError } from "medusa-core-utils"
 import { EntityManager } from "typeorm"
+import { TransactionBaseService } from "../interfaces"
 import { BatchJob } from "../models"
 import { BatchJobRepository } from "../repositories/batch-job"
 import {
@@ -10,11 +13,9 @@ import {
   FilterableBatchJobProps,
 } from "../types/batch-job"
 import { FindConfig } from "../types/common"
-import { TransactionBaseService } from "../interfaces"
 import { buildQuery } from "../utils"
-import { isDefined, MedusaError } from "medusa-core-utils"
-import { EventBusService, StrategyResolverService } from "./index"
-import { Request } from "express"
+import EventBusService from "./event-bus"
+import { StrategyResolverService } from "./index"
 
 type InjectedDependencies = {
   manager: EntityManager

packages/medusa/src/services/discount-condition.ts

@@ -1,6 +1,6 @@
 import { isDefined, MedusaError } from "medusa-core-utils"
 import { EntityManager } from "typeorm"
-import { EventBusService } from "."
+import { TransactionBaseService } from "../interfaces"
 import {
   DiscountCondition,
   DiscountConditionCustomerGroup,
@@ -13,8 +13,8 @@ import {
 import { DiscountConditionRepository } from "../repositories/discount-condition"
 import { FindConfig } from "../types/common"
 import { DiscountConditionInput } from "../types/discount"
-import { TransactionBaseService } from "../interfaces"
 import { buildQuery, PostgresError } from "../utils"
+import EventBusService from "./event-bus"
 
 type InjectedDependencies = {
   manager: EntityManager

packages/medusa/src/services/discount.ts

@@ -9,7 +9,6 @@ import {
   In,
 } from "typeorm"
 import {
-  EventBusService,
   NewTotalsService,
   ProductService,
   RegionService,
@@ -36,12 +35,13 @@ import {
   UpdateDiscountInput,
   UpdateDiscountRuleInput,
 } from "../types/discount"
+import { CalculationContextData } from "../types/totals"
 import { buildQuery, setMetadata } from "../utils"
 import { isFuture, isPast } from "../utils/date-helpers"
 import { FlagRouter } from "../utils/flag-router"
 import CustomerService from "./customer"
 import DiscountConditionService from "./discount-condition"
-import { CalculationContextData } from "../types/totals"
+import EventBusService from "./event-bus"
 
 /**
  * Provides layer to manipulate discounts.

packages/medusa/src/services/event-bus.ts

@@ -1,150 +1,68 @@
-import Bull, { JobOptions } from "bull"
-import Redis from "ioredis"
-import { DeepPartial, EntityManager, In } from "typeorm"
-import { QueryDeepPartialEntity } from "typeorm/query-builder/QueryPartialEntity"
-import { ulid } from "ulid"
+import { EventBusTypes } from "@medusajs/types"
+import { EventBusUtils } from "@medusajs/utils"
+import { EntityManager } from "typeorm"
+import { TransactionBaseService } from "../interfaces"
 import { StagedJob } from "../models"
-import { StagedJobRepository } from "../repositories/staged-job"
-import { ConfigModule, Logger } from "../types/global"
+import { ConfigModule } from "../types/global"
 import { isString } from "../utils"
 import { sleep } from "../utils/sleep"
-import JobSchedulerService, { CreateJobOptions } from "./job-scheduler"
+import StagedJobService from "./staged-job"
 
 type InjectedDependencies = {
-  manager: EntityManager
-  logger: Logger
-  stagedJobRepository: typeof StagedJobRepository
-  jobSchedulerService: JobSchedulerService
-  redisClient: Redis.Redis
-  redisSubscriber: Redis.Redis
-}
-
-type Subscriber<T = unknown> = (data: T, eventName: string) => Promise<void>
-
-type SubscriberContext = {
-  subscriberId: string
-}
-
-type BullJob<T> = {
-  update: (data: unknown) => void
-  attemptsMade: number
-  opts: EmitOptions
-  data: {
-    eventName: string
-    data: T
-    completedSubscriberIds: string[] | undefined
-  }
-}
-
-type SubscriberDescriptor = {
-  id: string
-  subscriber: Subscriber
-}
-
-export type EmitOptions = {
-  delay?: number
-  attempts: number
-  backoff?: {
-    type: "fixed" | "exponential"
-    delay: number
-  }
-} & JobOptions
-
-export type EmitData<T = unknown> = {
-  eventName: string
-  data: T
-  opts?: Record<string, unknown> & EmitOptions
+  stagedJobService: StagedJobService
+  eventBusModuleService: EventBusUtils.AbstractEventBusModuleService
 }
 
 /**
  * Can keep track of multiple subscribers to different events and run the
  * subscribers when events happen. Events will run asynchronously.
  */
-export default class EventBusService {
+export default class EventBusService
+  extends TransactionBaseService
+  implements EventBusTypes.IEventBusService
+{
   protected readonly config_: ConfigModule
-  protected readonly manager_: EntityManager
-  protected readonly logger_: Logger
-  protected readonly stagedJobRepository_: typeof StagedJobRepository
-  protected readonly jobSchedulerService_: JobSchedulerService
-  protected readonly eventToSubscribersMap_: Map<
-    string | symbol,
-    SubscriberDescriptor[]
-  >
-  protected readonly redisClient_: Redis.Redis
-  protected readonly redisSubscriber_: Redis.Redis
-  protected queue_: Bull
+  protected readonly stagedJobService_: StagedJobService
+  // eslint-disable-next-line max-len
+  protected readonly eventBusModuleService_: EventBusUtils.AbstractEventBusModuleService
+
   protected shouldEnqueuerRun: boolean
-  protected transactionManager_: EntityManager | undefined
   protected enqueue_: Promise<void>
 
   constructor(
-    {
-      manager,
-      logger,
-      stagedJobRepository,
-      redisClient,
-      redisSubscriber,
-      jobSchedulerService,
-    }: InjectedDependencies,
-    config: ConfigModule,
-    singleton = true
+    { stagedJobService, eventBusModuleService }: InjectedDependencies,
+    config,
+    isSingleton = true
   ) {
+    // eslint-disable-next-line prefer-rest-params
+    super(arguments[0])
+
     this.config_ = config
-    this.manager_ = manager
-    this.logger_ = logger
-    this.jobSchedulerService_ = jobSchedulerService
-    this.stagedJobRepository_ = stagedJobRepository
+    this.eventBusModuleService_ = eventBusModuleService
+    this.stagedJobService_ = stagedJobService
 
-    if (singleton) {
-      const opts = {
-        createClient: (type: string): Redis.Redis => {
-          switch (type) {
-            case "client":
-              return redisClient
-            case "subscriber":
-              return redisSubscriber
-            default:
-              if (config.projectConfig.redis_url) {
-                return new Redis(config.projectConfig.redis_url)
-              }
-              return redisClient
-          }
-        },
-      }
-
-      this.eventToSubscribersMap_ = new Map()
-      this.queue_ = new Bull(`${this.constructor.name}:queue`, opts)
-      this.redisClient_ = redisClient
-      this.redisSubscriber_ = redisSubscriber
-      // Register our worker to handle emit calls
-      this.queue_.process(this.worker_)
-
-      if (process.env.NODE_ENV !== "test") {
-        this.startEnqueuer()
-      }
+    if (process.env.NODE_ENV !== "test" && isSingleton) {
+      this.startEnqueuer()
     }
   }
 
-  withTransaction(transactionManager): this | EventBusService {
+  withTransaction(transactionManager?: EntityManager): this {
     if (!transactionManager) {
       return this
     }
 
-    const cloned = new EventBusService(
+    const cloned = new (this.constructor as any)(
       {
         manager: transactionManager,
-        stagedJobRepository: this.stagedJobRepository_,
-        jobSchedulerService: this.jobSchedulerService_,
-        logger: this.logger_,
-        redisClient: this.redisClient_,
-        redisSubscriber: this.redisSubscriber_,
+        stagedJobService: this.stagedJobService_,
+        eventBusModuleService: this.eventBusModuleService_,
       },
       this.config_,
       false
     )
 
+    cloned.manager_ = transactionManager
     cloned.transactionManager_ = transactionManager
-    cloned.queue_ = this.queue_
 
     return cloned
   }
@@ -153,70 +71,36 @@ export default class EventBusService {
    * Adds a function to a list of event subscribers.
    * @param event - the event that the subscriber will listen for.
    * @param subscriber - the function to be called when a certain event
-   * @param context - context to use when attaching subscriber
    * happens. Subscribers must return a Promise.
+   * @param context - subscriber context
    * @return this
    */
   subscribe(
     event: string | symbol,
-    subscriber: Subscriber,
-    context?: SubscriberContext
+    subscriber: EventBusTypes.Subscriber,
+    context?: EventBusTypes.SubscriberContext
   ): this {
     if (typeof subscriber !== "function") {
       throw new Error("Subscriber must be a function")
     }
 
-    /**
-     * If context is provided, we use the subscriberId from it
-     * otherwise we generate a random using a ulid
-     */
-    const subscriberId =
-      context?.subscriberId ?? `${event.toString()}-${ulid()}`
-
-    const newSubscriberDescriptor = { subscriber, id: subscriberId }
-
-    const existingSubscribers = this.eventToSubscribersMap_.get(event) ?? []
-
-    const subscriberAlreadyExists = existingSubscribers.find(
-      (sub) => sub.id === subscriberId
-    )
-
-    if (subscriberAlreadyExists) {
-      throw Error(`Subscriber with id ${subscriberId} already exists`)
-    }
-
-    this.eventToSubscribersMap_.set(event, [
-      ...existingSubscribers,
-      newSubscriberDescriptor,
-    ])
-
+    this.eventBusModuleService_.subscribe(event, subscriber, context)
     return this
   }
 
   /**
-   * Adds a function to a list of event subscribers.
-   * @param event - the event that the subscriber will listen for.
-   * @param subscriber - the function to be called when a certain event
-   * happens. Subscribers must return a Promise.
+   * Removes function from the list of event subscribers.
+   * @param event - the event of the subcriber.
+   * @param subscriber - the function to be removed
+   * @param context - subscriber context
    * @return this
    */
-  unsubscribe(event: string | symbol, subscriber: Subscriber): this {
-    if (typeof subscriber !== "function") {
-      throw new Error("Subscriber must be a function")
-    }
-
-    const existingSubscribers = this.eventToSubscribersMap_.get(event)
-
-    if (existingSubscribers?.length) {
-      const subIndex = existingSubscribers?.findIndex(
-        (sub) => sub.subscriber === subscriber
-      )
-
-      if (subIndex !== -1) {
-        this.eventToSubscribersMap_.get(event)?.splice(subIndex as number, 1)
-      }
-    }
-
+  unsubscribe(
+    event: string | symbol,
+    subscriber: EventBusTypes.Subscriber,
+    context: EventBusTypes.SubscriberContext
+  ): this {
+    this.eventBusModuleService_.unsubscribe(event, subscriber, context)
     return this
   }
 
@@ -225,7 +109,7 @@ export default class EventBusService {
    * @param data - The data to use to process the events
    * @return the jobs from our queue
    */
-  async emit<T>(data: EmitData<T>[]): Promise<StagedJob[] | void>
+  async emit<T>(data: EventBusTypes.EmitData<T>[]): Promise<StagedJob[] | void>
 
   /**
    * Calls all subscribers when an event occurs.
@@ -237,80 +121,54 @@ export default class EventBusService {
   async emit<T>(
     eventName: string,
     data: T,
-    options?: Record<string, unknown> & EmitOptions
+    options?: Record<string, unknown>
   ): Promise<StagedJob | void>
 
   async emit<
     T,
-    TInput extends string | EmitData<T>[] = string,
-    TResult = TInput extends EmitData<T>[] ? StagedJob[] : StagedJob
+    TInput extends string | EventBusTypes.EmitData<T>[] = string,
+    TResult = TInput extends EventBusTypes.EmitData<T>[]
+      ? StagedJob[]
+      : StagedJob
   >(
     eventNameOrData: TInput,
     data?: T,
-    options: Record<string, unknown> & EmitOptions = {}
+    options: Record<string, unknown> = {}
   ): Promise<TResult | void> {
-    const globalEventOptions = this.config_?.projectConfig?.event_options ?? {}
-
+    const manager = this.activeManager_
     const isBulkEmit = !isString(eventNameOrData)
     const events = isBulkEmit
       ? eventNameOrData.map((event) => ({
-          data: { eventName: event.eventName, data: event.data },
-          opts: event.opts,
+          eventName: event.eventName,
+          data: event.data,
+          options: event.options,
         }))
       : [
           {
-            data: { eventName: eventNameOrData, data },
-            opts: options,
+            eventName: eventNameOrData,
+            data: data,
+            options: options,
           },
         ]
 
-    // The order of precedence for job options is:
-    // 1. local options
-    // 2. global options
-    // 3. default options
-    const defaultOptions: EmitOptions = {
-      attempts: 1, // default
-      removeOnComplete: true, // default
-      ...globalEventOptions, // global
-    }
-
-    for (const event of events) {
-      event.opts = {
-        ...defaultOptions,
-        ...(event.opts ?? {}), // local
-      }
-    }
-
     /**
-     * If we are in an ongoing transaction, we store the jobs in the database
-     * instead of processing them immediately. We only want to process those
-     * events, if the transaction successfully commits. This is to avoid jobs
-     * being processed if the transaction fails.
+     * We store events in the database when in an ongoing transaction.
      *
-     * In case of a failing transaction, kobs stored in the database are removed
+     * If we are in a long-running transaction, the ACID properties of a
+     * transaction ensure, that events are kept invisible to the enqueuer
+     * until the trasaction has commited.
+     *
+     * This patterns also gives us at-least-once delivery of events, as events
+     * are only removed from the database, if they are successfully delivered.
+     *
+     * In case of a failing transaction, jobs stored in the database are removed
      * as part of the rollback.
      */
-    if (this.transactionManager_) {
-      const stagedJobRepository = this.transactionManager_.withRepository(
-        this.stagedJobRepository_
-      )
+    const stagedJobs = await this.stagedJobService_
+      .withTransaction(manager)
+      .create(events)
 
-      const jobsToCreate = events.map((event) => {
-        return stagedJobRepository.create({
-          event_name: event.data.eventName,
-          data: event.data.data,
-          options: event.opts,
-        } as DeepPartial<StagedJob>) as QueryDeepPartialEntity<StagedJob>
-      })
-
-      const stagedJobs = await stagedJobRepository.insertBulk(jobsToCreate)
-
-      return (!isBulkEmit ? stagedJobs[0] : stagedJobs) as unknown as TResult
-    }
-
-    if (this.config_?.projectConfig?.redis_url) {
-      await this.queue_.addBulk(events)
-    }
+    return (!isBulkEmit ? stagedJobs[0] : stagedJobs) as unknown as TResult
   }
 
   startEnqueuer(): void {
@@ -324,17 +182,14 @@ export default class EventBusService {
   }
 
   async enqueuer_(): Promise<void> {
-    while (this.shouldEnqueuerRun) {
-      const listConfig = {
-        relations: [],
-        skip: 0,
-        take: 1000,
-      }
+    const listConfig = {
+      relations: [],
+      skip: 0,
+      take: 1000,
+    }
 
-      const stagedJobRepo = this.manager_.withRepository(
-        this.stagedJobRepository_
-      )
-      const jobs = await stagedJobRepo.find(listConfig)
+    while (this.shouldEnqueuerRun) {
+      const jobs = await this.stagedJobService_.list(listConfig)
 
       if (!jobs.length) {
         await sleep(3000)
@@ -343,138 +198,17 @@ export default class EventBusService {
 
       const eventsData = jobs.map((job) => {
         return {
-          data: { eventName: job.event_name, data: job.data },
-          opts: { jobId: job.id, ...job.options },
+          eventName: job.event_name,
+          data: job.data,
+          options: { jobId: job.id, ...job.options },
         }
       })
 
-      await this.queue_.addBulk(eventsData).then(async () => {
-        return await stagedJobRepo.delete({ id: In(jobs.map((j) => j.id)) })
+      await this.eventBusModuleService_.emit(eventsData).then(async () => {
+        return await this.stagedJobService_.delete(jobs.map((j) => j.id))
       })
 
       await sleep(3000)
     }
   }
-
-  /**
-   * Handles incoming jobs.
-   * @param job The job object
-   * @return resolves to the results of the subscriber calls.
-   */
-  worker_ = async <T>(job: BullJob<T>): Promise<unknown> => {
-    const { eventName, data } = job.data
-    const eventSubscribers = this.eventToSubscribersMap_.get(eventName) || []
-    const wildcardSubscribers = this.eventToSubscribersMap_.get("*") || []
-
-    const allSubscribers = eventSubscribers.concat(wildcardSubscribers)
-
-    // Pull already completed subscribers from the job data
-    const completedSubscribers = job.data.completedSubscriberIds || []
-
-    // Filter out already completed subscribers from the all subscribers
-    const subscribersInCurrentAttempt = allSubscribers.filter(
-      (subscriber) =>
-        subscriber.id && !completedSubscribers.includes(subscriber.id)
-    )
-
-    const isRetry = job.attemptsMade > 0
-    const currentAttempt = job.attemptsMade + 1
-
-    const isFinalAttempt = job?.opts?.attempts === currentAttempt
-
-    if (isRetry) {
-      if (isFinalAttempt) {
-        this.logger_.info(`Final retry attempt for ${eventName}`)
-      }
-
-      this.logger_.info(
-        `Retrying ${eventName} which has ${eventSubscribers.length} subscribers (${subscribersInCurrentAttempt.length} of them failed)`
-      )
-    } else {
-      this.logger_.info(
-        `Processing ${eventName} which has ${eventSubscribers.length} subscribers`
-      )
-    }
-
-    const completedSubscribersInCurrentAttempt: string[] = []
-
-    const subscribersResult = await Promise.all(
-      subscribersInCurrentAttempt.map(async ({ id, subscriber }) => {
-        return subscriber(data, eventName)
-          .then((data) => {
-            // For every subscriber that completes successfully, add their id to the list of completed subscribers
-            completedSubscribersInCurrentAttempt.push(id)
-            return data
-          })
-          .catch((err) => {
-            this.logger_.warn(
-              `An error occurred while processing ${eventName}: ${err}`
-            )
-            return err
-          })
-      })
-    )
-
-    // If the number of completed subscribers is different from the number of subcribers to process in current attempt, some of them failed
-    const didSubscribersFail =
-      completedSubscribersInCurrentAttempt.length !==
-      subscribersInCurrentAttempt.length
-
-    const isRetriesConfigured = job?.opts?.attempts > 1
-
-    // Therefore, if retrying is configured, we try again
-    const shouldRetry =
-      didSubscribersFail && isRetriesConfigured && !isFinalAttempt
-
-    if (shouldRetry) {
-      const updatedCompletedSubscribers = [
-        ...completedSubscribers,
-        ...completedSubscribersInCurrentAttempt,
-      ]
-
-      job.data.completedSubscriberIds = updatedCompletedSubscribers
-
-      job.update(job.data)
-
-      const errorMessage = `One or more subscribers of ${eventName} failed. Retrying...`
-
-      this.logger_.warn(errorMessage)
-
-      return Promise.reject(Error(errorMessage))
-    }
-
-    if (didSubscribersFail && !isFinalAttempt) {
-      // If retrying is not configured, we log a warning to allow server admins to recover manually
-      this.logger_.warn(
-        `One or more subscribers of ${eventName} failed. Retrying is not configured. Use 'attempts' option when emitting events.`
-      )
-    }
-
-    return Promise.resolve(subscribersResult)
-  }
-
-  /**
-   * Registers a cron job.
-   * @deprecated All cron job logic has been refactored to the `JobSchedulerService`. This method will be removed in a future release.
-   * @param eventName - the name of the event
-   * @param data - the data to be sent with the event
-   * @param cron - the cron pattern
-   * @param handler - the handler to call on each cron job
-   * @return void
-   */
-  async createCronJob<T>(
-    eventName: string,
-    data: T,
-    cron: string,
-    handler: Subscriber,
-    options?: CreateJobOptions
-  ): Promise<void> {
-    await this.jobSchedulerService_.create(
-      eventName,
-      data,
-      cron,
-      handler,
-      options ?? {}
-    )
-  }
 }

packages/medusa/src/services/gift-card.ts

@@ -1,7 +1,6 @@
 import { isDefined, MedusaError } from "medusa-core-utils"
 import randomize from "randomatic"
 import { EntityManager } from "typeorm"
-import { EventBusService } from "."
 import { TransactionBaseService } from "../interfaces"
 import { GiftCard, Region } from "../models"
 import { GiftCardRepository } from "../repositories/gift-card"
@@ -13,6 +12,7 @@ import {
   UpdateGiftCardInput,
 } from "../types/gift-card"
 import { buildQuery, setMetadata } from "../utils"
+import EventBusService from "./event-bus"
 import RegionService from "./region"
 
 type InjectedDependencies = {

packages/medusa/src/services/index.ts

@@ -19,33 +19,34 @@ export { default as IdempotencyKeyService } from "./idempotency-key"
 export { default as LineItemService } from "./line-item"
 export { default as LineItemAdjustmentService } from "./line-item-adjustment"
 export { default as MiddlewareService } from "./middleware"
+export { default as NewTotalsService } from "./new-totals"
 export { default as NoteService } from "./note"
 export { default as NotificationService } from "./notification"
 export { default as OauthService } from "./oauth"
 export { default as OrderService } from "./order"
 export { default as OrderEditService } from "./order-edit"
 export { default as OrderEditItemChangeService } from "./order-edit-item-change"
+export { default as PaymentService } from "./payment"
 export { default as PaymentCollectionService } from "./payment-collection"
 export { default as PaymentProviderService } from "./payment-provider"
-export { default as PaymentService } from "./payment"
 export { default as PriceListService } from "./price-list"
 export { default as PricingService } from "./pricing"
 export { default as ProductService } from "./product"
 export { default as ProductCategoryService } from "./product-category"
 export { default as ProductCollectionService } from "./product-collection"
 export { default as ProductTypeService } from "./product-type"
-export { default as ProductVariantInventoryService } from "./product-variant-inventory"
 export { default as ProductVariantService } from "./product-variant"
-
+export { default as ProductVariantInventoryService } from "./product-variant-inventory"
 export { default as RegionService } from "./region"
 export { default as ReturnService } from "./return"
 export { default as ReturnReasonService } from "./return-reason"
+export { default as SalesChannelService } from "./sales-channel"
 export { default as SalesChannelInventoryService } from "./sales-channel-inventory"
 export { default as SalesChannelLocationService } from "./sales-channel-location"
-export { default as SalesChannelService } from "./sales-channel"
 export { default as SearchService } from "./search"
 export { default as ShippingOptionService } from "./shipping-option"
 export { default as ShippingProfileService } from "./shipping-profile"
+export { default as StagedJobService } from "./staged-job"
 export { default as StoreService } from "./store"
 export { default as StrategyResolverService } from "./strategy-resolver"
 export { default as SwapService } from "./swap"
@@ -54,5 +55,4 @@ export { default as TaxProviderService } from "./tax-provider"
 export { default as TaxRateService } from "./tax-rate"
 export { default as TokenService } from "./token"
 export { default as TotalsService } from "./totals"
-export { default as NewTotalsService } from "./new-totals"
 export { default as UserService } from "./user"

packages/medusa/src/services/invite.ts

@@ -1,15 +1,16 @@
 import jwt, { JwtPayload } from "jsonwebtoken"
 import { MedusaError } from "medusa-core-utils"
 import { EntityManager } from "typeorm"
-import { EventBusService, UserService } from "."
+import { UserService } from "."
 import { User } from ".."
+import { TransactionBaseService } from "../interfaces"
 import { UserRoles } from "../models/user"
 import { InviteRepository } from "../repositories/invite"
 import { UserRepository } from "../repositories/user"
-import { ListInvite } from "../types/invites"
 import { ConfigModule } from "../types/global"
-import { TransactionBaseService } from "../interfaces"
+import { ListInvite } from "../types/invites"
 import { buildQuery } from "../utils"
+import EventBusService from "./event-bus"
 
 // 7 days
 const DEFAULT_VALID_DURATION = 1000 * 60 * 60 * 24 * 7

packages/medusa/src/services/job-scheduler.ts

@@ -1,11 +1,9 @@
-import Bull from "bull"
+import { Job, Queue, Worker } from "bullmq"
 import Redis from "ioredis"
 import { ConfigModule, Logger } from "../types/global"
 
 type InjectedDependencies = {
   logger: Logger
-  redisClient: Redis.Redis
-  redisSubscriber: Redis.Redis
 }
 
 type ScheduledJobHandler<T = unknown> = (
@@ -22,36 +20,34 @@ export default class JobSchedulerService {
   protected readonly logger_: Logger
   protected readonly handlers_: Map<string | symbol, ScheduledJobHandler[]> =
     new Map()
-  protected readonly queue_: Bull
+  protected readonly queue_: Queue
 
   constructor(
-    { logger, redisClient, redisSubscriber }: InjectedDependencies,
+    { logger }: InjectedDependencies,
     config: ConfigModule,
     singleton = true
   ) {
     this.config_ = config
     this.logger_ = logger
 
-    if (singleton) {
-      const opts = {
-        createClient: (type: string): Redis.Redis => {
-          switch (type) {
-            case "client":
-              return redisClient
-            case "subscriber":
-              return redisSubscriber
-            default:
-              if (config.projectConfig.redis_url) {
-                return new Redis(config.projectConfig.redis_url)
-              }
-              return redisClient
-          }
-        },
-      }
+    if (singleton && config?.projectConfig?.redis_url) {
+      // Required config
+      // See: https://github.com/OptimalBits/bull/blob/develop/CHANGELOG.md#breaking-changes
+      const connection = new Redis(config.projectConfig.redis_url, {
+        maxRetriesPerRequest: null,
+        enableReadyCheck: false,
+      })
+
+      this.queue_ = new Queue(`scheduled-jobs:queue`, {
+        connection,
+        prefix: `${this.constructor.name}`,
+      })
 
-      this.queue_ = new Bull(`scheduled-jobs:queue`, opts)
       // Register scheduled job worker
-      this.queue_.process(this.scheduledJobsWorker)
+      new Worker("scheduled-jobs:queue", this.scheduledJobsWorker, {
+        connection,
+        prefix: `${this.constructor.name}`,
+      })
     }
   }
 
@@ -112,7 +108,7 @@ export default class JobSchedulerService {
     schedule: string,
     handler: ScheduledJobHandler,
     options: CreateJobOptions
-  ): Promise<void> {
+  ): Promise<Job> {
     this.logger_.info(`Registering ${eventName}`)
     this.registerHandler(eventName, handler)
 
@@ -120,10 +116,10 @@ export default class JobSchedulerService {
       eventName,
       data,
     }
-    const repeatOpts = { repeat: { cron: schedule } }
+    const repeatOpts = { repeat: { pattern: schedule } }
 
     if (options?.keepExisting) {
-      return await this.queue_.add(jobToCreate, repeatOpts)
+      return await this.queue_.add(eventName, jobToCreate, repeatOpts)
     }
 
     const existingJobs = (await this.queue_.getRepeatableJobs()) ?? []
@@ -134,6 +130,6 @@ export default class JobSchedulerService {
       await this.queue_.removeRepeatableByKey(existingJob.key)
     }
 
-    return await this.queue_.add(jobToCreate, repeatOpts)
+    return await this.queue_.add(eventName, jobToCreate, repeatOpts)
   }
 }

packages/medusa/src/services/note.ts

@@ -1,12 +1,12 @@
 import { isDefined, MedusaError } from "medusa-core-utils"
 import { EntityManager } from "typeorm"
 import { TransactionBaseService } from "../interfaces"
-import { NoteRepository } from "../repositories/note"
-import EventBusService from "./event-bus"
-import { FindConfig, Selector } from "../types/common"
 import { Note } from "../models"
-import { buildQuery } from "../utils"
+import { NoteRepository } from "../repositories/note"
+import { FindConfig, Selector } from "../types/common"
 import { CreateNoteInput } from "../types/note"
+import { buildQuery } from "../utils"
+import EventBusService from "./event-bus"
 
 type InjectedDependencies = {
   manager: EntityManager

packages/medusa/src/services/order-edit-item-change.ts

@@ -1,18 +1,19 @@
-import { TransactionBaseService } from "../interfaces"
-import { OrderItemChangeRepository } from "../repositories/order-item-change"
-import { EntityManager, In } from "typeorm"
-import { EventBusService, LineItemService } from "./index"
-import { FindConfig, Selector } from "../types/common"
-import { OrderItemChange } from "../models"
-import { buildQuery } from "../utils"
+import { EventBusTypes } from "@medusajs/types"
 import { MedusaError } from "medusa-core-utils"
-import TaxProviderService from "./tax-provider"
+import { EntityManager, In } from "typeorm"
+import { TransactionBaseService } from "../interfaces"
+import { OrderItemChange } from "../models"
+import { OrderItemChangeRepository } from "../repositories/order-item-change"
+import { FindConfig, Selector } from "../types/common"
 import { CreateOrderEditItemChangeInput } from "../types/order-edit"
+import { buildQuery } from "../utils"
+import { LineItemService } from "./index"
+import TaxProviderService from "./tax-provider"
 
 type InjectedDependencies = {
   manager: EntityManager
   orderItemChangeRepository: typeof OrderItemChangeRepository
-  eventBusService: EventBusService
+  eventBusService: EventBusTypes.IEventBusService
   lineItemService: LineItemService
   taxProviderService: TaxProviderService
 }
@@ -25,7 +26,7 @@ export default class OrderEditItemChangeService extends TransactionBaseService {
 
   // eslint-disable-next-line max-len
   protected readonly orderItemChangeRepository_: typeof OrderItemChangeRepository
-  protected readonly eventBus_: EventBusService
+  protected readonly eventBus_: EventBusTypes.IEventBusService
   protected readonly lineItemService_: LineItemService
   protected readonly taxProviderService_: TaxProviderService
 

packages/medusa/src/services/order-edit.ts

@@ -22,8 +22,8 @@ import {
   CreateOrderEditInput,
 } from "../types/order-edit"
 import { buildQuery, isString } from "../utils"
+import EventBusService from "./event-bus"
 import {
-  EventBusService,
   LineItemAdjustmentService,
   LineItemService,
   NewTotalsService,

packages/medusa/src/services/order.ts

@@ -8,7 +8,7 @@ import {
   Not,
   Raw,
 } from "typeorm"
-import { TransactionBaseService } from "../interfaces"
+import { IInventoryService, TransactionBaseService } from "../interfaces"
 import SalesChannelFeatureFlag from "../loaders/feature-flags/sales-channels"
 import {
   Address,
@@ -50,7 +50,6 @@ import {
   CustomerService,
   DiscountService,
   DraftOrderService,
-  EventBusService,
   FulfillmentProviderService,
   FulfillmentService,
   GiftCardService,
@@ -64,6 +63,7 @@ import {
   TaxProviderService,
   TotalsService
 } from "."
+import EventBusService from "./event-bus"
 
 export const ORDER_CART_ALREADY_EXISTS_ERROR = "Order from cart already exists"
 
@@ -86,6 +86,7 @@ type InjectedDependencies = {
   addressRepository: typeof AddressRepository
   giftCardService: GiftCardService
   draftOrderService: DraftOrderService
+  inventoryService: IInventoryService
   eventBusService: EventBusService
   featureFlagRouter: FlagRouter
   productVariantInventoryService: ProductVariantInventoryService
@@ -128,6 +129,7 @@ class OrderService extends TransactionBaseService {
   protected readonly addressRepository_: typeof AddressRepository
   protected readonly giftCardService_: GiftCardService
   protected readonly draftOrderService_: DraftOrderService
+  protected readonly inventoryService_: IInventoryService
   protected readonly eventBus_: EventBusService
   protected readonly featureFlagRouter_: FlagRouter
   // eslint-disable-next-line max-len

packages/medusa/src/services/payment-collection.ts

@@ -1,28 +1,25 @@
-import { DeepPartial, EntityManager } from "typeorm"
 import { isDefined, MedusaError } from "medusa-core-utils"
+import { DeepPartial, EntityManager } from "typeorm"
 
-import { FindConfig } from "../types/common"
-import { buildQuery, isString, setMetadata } from "../utils"
-import { PaymentCollectionRepository } from "../repositories/payment-collection"
 import {
   PaymentCollection,
   PaymentCollectionStatus,
   PaymentSession,
   PaymentSessionStatus,
 } from "../models"
-import { TransactionBaseService } from "../interfaces"
-import {
-  CustomerService,
-  EventBusService,
-  PaymentProviderService,
-} from "./index"
+import { PaymentCollectionRepository } from "../repositories/payment-collection"
+import { FindConfig } from "../types/common"
+import { buildQuery, isString, setMetadata } from "../utils"
+import { CustomerService, PaymentProviderService } from "./index"
 
+import { TransactionBaseService } from "../interfaces"
+import { CreatePaymentInput, PaymentSessionInput } from "../types/payment"
 import {
   CreatePaymentCollectionInput,
   PaymentCollectionsSessionsBatchInput,
   PaymentCollectionsSessionsInput,
 } from "../types/payment-collection"
-import { CreatePaymentInput, PaymentSessionInput } from "../types/payment"
+import EventBusService from "./event-bus"
 
 type InjectedDependencies = {
   manager: EntityManager

packages/medusa/src/services/payment.ts

@@ -1,12 +1,13 @@
-import { PaymentRepository } from "./../repositories/payment"
-import { EntityManager } from "typeorm"
 import { isDefined, MedusaError } from "medusa-core-utils"
+import { EntityManager } from "typeorm"
+import { PaymentRepository } from "./../repositories/payment"
 
-import { Payment, Refund } from "../models"
 import { TransactionBaseService } from "../interfaces"
-import { EventBusService, PaymentProviderService } from "./index"
-import { buildQuery } from "../utils"
+import { Payment, Refund } from "../models"
 import { FindConfig } from "../types/common"
+import { buildQuery } from "../utils"
+import EventBusService from "./event-bus"
+import { PaymentProviderService } from "./index"
 
 type InjectedDependencies = {
   manager: EntityManager

packages/medusa/src/services/product-category.ts

@@ -1,23 +1,22 @@
 import { isDefined, MedusaError } from "medusa-core-utils"
-import { EntityManager, IsNull, MoreThanOrEqual, Between, Not } from "typeorm"
+import { Between, EntityManager, MoreThanOrEqual, Not } from "typeorm"
+import { EventBusService } from "."
 import { TransactionBaseService } from "../interfaces"
 import { ProductCategory } from "../models"
 import { ProductCategoryRepository } from "../repositories/product-category"
 import {
   FindConfig,
   QuerySelector,
-  TreeQuerySelector,
   Selector,
+  TreeQuerySelector,
 } from "../types/common"
-import { buildQuery, nullableValue } from "../utils"
-import { EventBusService } from "."
 import {
   CreateProductCategoryInput,
-  UpdateProductCategoryInput,
   ReorderConditions,
   tempReorderRank,
+  UpdateProductCategoryInput,
 } from "../types/product-category"
-import { isNumber } from "lodash"
+import { buildQuery, nullableValue } from "../utils"
 
 type InjectedDependencies = {
   manager: EntityManager

packages/medusa/src/services/product.ts

@@ -1,5 +1,3 @@
-import { FlagRouter } from "../utils/flag-router"
-
 import { isDefined, MedusaError } from "medusa-core-utils"
 import { EntityManager } from "typeorm"
 import { ProductVariantService, SearchService } from "."
@@ -31,6 +29,7 @@ import {
   UpdateProductInput,
 } from "../types/product"
 import { buildQuery, isString, setMetadata } from "../utils"
+import { FlagRouter } from "../utils/flag-router"
 import EventBusService from "./event-bus"
 
 type InjectedDependencies = {

packages/medusa/src/services/publishable-api-key.ts

@@ -1,17 +1,17 @@
-import { EntityManager, FindOptionsWhere, ILike } from "typeorm"
 import { isDefined, MedusaError } from "medusa-core-utils"
+import { EntityManager, FindOptionsWhere, ILike } from "typeorm"
 
-import { PublishableApiKeyRepository } from "../repositories/publishable-api-key"
-import { FindConfig, Selector } from "../types/common"
-import { PublishableApiKey, SalesChannel } from "../models"
 import { TransactionBaseService } from "../interfaces"
-import EventBusService from "./event-bus"
-import { buildQuery, isString } from "../utils"
+import { PublishableApiKey, SalesChannel } from "../models"
+import { PublishableApiKeyRepository } from "../repositories/publishable-api-key"
+import { PublishableApiKeySalesChannelRepository } from "../repositories/publishable-api-key-sales-channel"
+import { FindConfig, Selector } from "../types/common"
 import {
   CreatePublishableApiKeyInput,
   UpdatePublishableApiKeyInput,
 } from "../types/publishable-api-key"
-import { PublishableApiKeySalesChannelRepository } from "../repositories/publishable-api-key-sales-channel"
+import { buildQuery, isString } from "../utils"
+import EventBusService from "./event-bus"
 
 type InjectedDependencies = {
   manager: EntityManager

packages/medusa/src/services/sales-channel-inventory.ts

@@ -1,18 +1,20 @@
 import { EntityManager } from "typeorm"
 
-import { EventBusService, SalesChannelLocationService } from "./"
 import { IInventoryService, TransactionBaseService } from "../interfaces"
 
+import { EventBusTypes } from "@medusajs/types"
+import { SalesChannelLocationService } from "./"
+
 type InjectedDependencies = {
   inventoryService: IInventoryService
   salesChannelLocationService: SalesChannelLocationService
-  eventBusService: EventBusService
+  eventBusService: EventBusTypes.IEventBusService
   manager: EntityManager
 }
 
 class SalesChannelInventoryService extends TransactionBaseService {
   protected readonly salesChannelLocationService_: SalesChannelLocationService
-  protected readonly eventBusService_: EventBusService
+  protected readonly eventBusService_: EventBusTypes.IEventBusService
   protected readonly inventoryService_: IInventoryService
 
   constructor({

packages/medusa/src/services/sales-channel-location.ts

@@ -1,14 +1,16 @@
 import { EntityManager, In } from "typeorm"
 import { IStockLocationService, TransactionBaseService } from "../interfaces"
-import { EventBusService, SalesChannelService } from "./"
+import { SalesChannelService } from "./"
+
+import { EventBusTypes } from "@medusajs/types"
 
-import { SalesChannelLocation } from "../models/sales-channel-location"
 import { MedusaError } from "medusa-core-utils"
+import { SalesChannelLocation } from "../models/sales-channel-location"
 
 type InjectedDependencies = {
   stockLocationService: IStockLocationService
   salesChannelService: SalesChannelService
-  eventBusService: EventBusService
+  eventBusService: EventBusTypes.IEventBusService
   manager: EntityManager
 }
 
@@ -18,7 +20,7 @@ type InjectedDependencies = {
 
 class SalesChannelLocationService extends TransactionBaseService {
   protected readonly salesChannelService_: SalesChannelService
-  protected readonly eventBusService_: EventBusService
+  protected readonly eventBusService_: EventBusTypes.IEventBusService
   protected readonly stockLocationService_: IStockLocationService
 
   constructor({

packages/medusa/src/services/sales-channel.ts

@@ -1,17 +1,17 @@
+import { FindConfig, QuerySelector, Selector } from "../types/common"
 import {
   CreateSalesChannelInput,
   UpdateSalesChannelInput,
 } from "../types/sales-channels"
-import { FindConfig, QuerySelector, Selector } from "../types/common"
 
-import { EntityManager } from "typeorm"
-import EventBusService from "./event-bus"
 import { isDefined, MedusaError } from "medusa-core-utils"
+import { EntityManager } from "typeorm"
+import { TransactionBaseService } from "../interfaces"
 import { SalesChannel } from "../models"
 import { SalesChannelRepository } from "../repositories/sales-channel"
-import StoreService from "./store"
-import { TransactionBaseService } from "../interfaces"
 import { buildQuery } from "../utils"
+import EventBusService from "./event-bus"
+import StoreService from "./store"
 
 type InjectedDependencies = {
   salesChannelRepository: typeof SalesChannelRepository

packages/medusa/src/services/staged-job.ts

@@ -0,0 +1,63 @@
+import { EventBusTypes } from "@medusajs/types"
+import { DeepPartial, EntityManager, In } from "typeorm"
+import { QueryDeepPartialEntity } from "typeorm/query-builder/QueryPartialEntity"
+import { TransactionBaseService } from "../interfaces"
+import { StagedJob } from "../models"
+import { StagedJobRepository } from "../repositories/staged-job"
+import { FindConfig } from "../types/common"
+import { isString } from "../utils"
+
+type StagedJobServiceProps = {
+  manager: EntityManager
+  stagedJobRepository: typeof StagedJobRepository
+}
+
+/**
+ * Provides layer to manipulate users.
+ */
+class StagedJobService extends TransactionBaseService {
+  protected stagedJobRepository_: typeof StagedJobRepository
+
+  constructor({ stagedJobRepository }: StagedJobServiceProps) {
+    // eslint-disable-next-line prefer-rest-params
+    super(arguments[0])
+
+    this.stagedJobRepository_ = stagedJobRepository
+  }
+
+  async list(config: FindConfig<StagedJob>) {
+    const stagedJobRepo = this.activeManager_.withRepository(
+      this.stagedJobRepository_
+    )
+
+    return await stagedJobRepo.find(config)
+  }
+
+  async delete(stagedJobIds: string | string[]): Promise<void> {
+    const manager = this.activeManager_
+    const stagedJobRepo = manager.withRepository(this.stagedJobRepository_)
+    const sjIds = isString(stagedJobIds) ? [stagedJobIds] : stagedJobIds
+
+    await stagedJobRepo.delete({ id: In(sjIds) })
+  }
+
+  async create(data: EventBusTypes.EmitData[] | EventBusTypes.EmitData) {
+    return await this.atomicPhase_(async (manager) => {
+      const stagedJobRepo = manager.withRepository(this.stagedJobRepository_)
+
+      const data_ = Array.isArray(data) ? data : [data]
+
+      const stagedJobs = data_.map((job) =>
+        stagedJobRepo.create({
+          event_name: job.eventName,
+          data: job.data,
+          options: job.options,
+        } as DeepPartial<StagedJob>)
+      ) as QueryDeepPartialEntity<StagedJob>[]
+
+      return await stagedJobRepo.insertBulk(stagedJobs)
+    })
+  }
+}
+
+export default StagedJobService

packages/medusa/src/services/swap.ts

@@ -23,11 +23,12 @@ import { SwapRepository } from "../repositories/swap"
 import { FindConfig, Selector, WithRequiredProperty } from "../types/common"
 import { CreateShipmentConfig } from "../types/fulfillment"
 import { OrdersReturnItem } from "../types/orders"
-import CartService from "./cart"
 import {
+  CartService,
   CustomShippingOptionService,
   EventBusService,
   FulfillmentService,
+  LineItemAdjustmentService,
   LineItemService,
   OrderService,
   PaymentProviderService,
@@ -36,7 +37,6 @@ import {
   ShippingOptionService,
   TotalsService,
 } from "./index"
-import LineItemAdjustmentService from "./line-item-adjustment"
 
 type InjectedProps = {
   manager: EntityManager
@@ -44,7 +44,6 @@ type InjectedProps = {
   swapRepository: typeof SwapRepository
 
   cartService: CartService
-  eventBus: EventBusService
   orderService: OrderService
   returnService: ReturnService
   totalsService: TotalsService

packages/medusa/src/services/tax-provider.ts

@@ -1,10 +1,14 @@
-import { MedusaError } from "medusa-core-utils"
 import { AwilixContainer } from "awilix"
+import { MedusaError } from "medusa-core-utils"
 import { In } from "typeorm"
 
-import { LineItemTaxLineRepository } from "../repositories/line-item-tax-line"
-import { ShippingMethodTaxLineRepository } from "../repositories/shipping-method-tax-line"
-import { TaxProviderRepository } from "../repositories/tax-provider"
+import {
+  ICacheService,
+  ITaxService,
+  ItemTaxCalculationLine,
+  TaxCalculationContext,
+  TransactionBaseService,
+} from "../interfaces"
 import {
   Cart,
   LineItem,
@@ -14,19 +18,15 @@ import {
   ShippingMethodTaxLine,
   TaxProvider,
 } from "../models"
+import { LineItemTaxLineRepository } from "../repositories/line-item-tax-line"
+import { ShippingMethodTaxLineRepository } from "../repositories/shipping-method-tax-line"
+import { TaxProviderRepository } from "../repositories/tax-provider"
 import { isCart } from "../types/cart"
-import {
-  ICacheService,
-  ITaxService,
-  ItemTaxCalculationLine,
-  TaxCalculationContext,
-  TransactionBaseService,
-} from "../interfaces"
 
 import { TaxLinesMaps, TaxServiceRate } from "../types/tax-service"
+import EventBusService from "./event-bus"
 
 import TaxRateService from "./tax-rate"
-import EventBusService from "./event-bus"
 
 type RegionDetails = {
   id: string

packages/medusa/src/strategies/batch-jobs/order/export.ts

@@ -6,16 +6,15 @@ import {
   orderExportPropertiesDescriptors,
 } from "."
 import { AdminPostBatchesReq } from "../../../api"
-import { IFileService } from "../../../interfaces"
-import { AbstractBatchJobStrategy } from "../../../interfaces"
+import { AbstractBatchJobStrategy, IFileService } from "../../../interfaces"
+import SalesChannelFeatureFlag from "../../../loaders/feature-flags/sales-channels"
 import { Order } from "../../../models"
 import { OrderService } from "../../../services"
 import BatchJobService from "../../../services/batch-job"
 import { BatchJobStatus } from "../../../types/batch-job"
-import { prepareListQuery } from "../../../utils/get-query-config"
-import { FlagRouter } from "../../../utils/flag-router"
-import SalesChannelFeatureFlag from "../../../loaders/feature-flags/sales-channels"
 import { FindConfig } from "../../../types/common"
+import { FlagRouter } from "../../../utils/flag-router"
+import { prepareListQuery } from "../../../utils/get-query-config"
 
 type InjectedDependencies = {
   fileService: IFileService

packages/medusa/src/subscribers/batch-job.ts

@@ -1,7 +1,9 @@
-import BatchJobService from "../services/batch-job"
-import EventBusService from "../services/event-bus"
-import { StrategyResolverService } from "../services"
 import { EntityManager } from "typeorm"
+import {
+  BatchJobService,
+  EventBusService,
+  StrategyResolverService,
+} from "../services"
 
 type InjectedDependencies = {
   eventBusService: EventBusService
@@ -27,9 +29,15 @@ class BatchJobSubscriber {
     this.strategyResolver_ = strategyResolverService
     this.manager_ = manager
 
-    this.eventBusService_
-      .subscribe(BatchJobService.Events.CREATED, this.preProcessBatchJob)
-      .subscribe(BatchJobService.Events.CONFIRMED, this.processBatchJob)
+    this.eventBusService_.subscribe(
+      BatchJobService.Events.CREATED,
+      this.preProcessBatchJob
+    ) as EventBusService
+
+    this.eventBusService_.subscribe(
+      BatchJobService.Events.CONFIRMED,
+      this.processBatchJob
+    ) as EventBusService
   }
 
   preProcessBatchJob = async (data): Promise<void> => {

packages/medusa/src/subscribers/cart.ts

@@ -1,6 +1,5 @@
-import EventBusService from "../services/event-bus"
-import { CartService } from "../services"
 import { EntityManager } from "typeorm"
+import { CartService, EventBusService } from "../services"
 
 type InjectedDependencies = {
   eventBusService: EventBusService

packages/medusa/src/subscribers/search-indexing.ts

@@ -1,21 +1,21 @@
+import { EventBusTypes } from "@medusajs/types"
 import { indexTypes } from "medusa-core-utils"
 import { ISearchService } from "../interfaces"
 import ProductCategoryFeatureFlag from "../loaders/feature-flags/product-categories"
 import { SEARCH_INDEX_EVENT } from "../loaders/search-index"
 import { Product } from "../models"
-import EventBusService from "../services/event-bus"
 import ProductService from "../services/product"
 import { FlagRouter } from "../utils/flag-router"
 
 type InjectedDependencies = {
-  eventBusService: EventBusService
+  eventBusService: EventBusTypes.IEventBusService
   searchService: ISearchService
   productService: ProductService
   featureFlagRouter: FlagRouter
 }
 
 class SearchIndexingSubscriber {
-  private readonly eventBusService_: EventBusService
+  private readonly eventBusService_: EventBusTypes.IEventBusService
   private readonly searchService_: ISearchService
   private readonly productService_: ProductService
   private readonly featureFlagRouter_: FlagRouter

packages/medusa/src/types/global.ts

@@ -1,13 +1,8 @@
-import {
-  ExternalModuleDeclaration,
-  InternalModuleDeclaration,
-} from "@medusajs/modules-sdk"
+import { CommonTypes } from "@medusajs/types"
 import { Request } from "express"
 import { MedusaContainer as coreMedusaContainer } from "medusa-core-utils"
-import { LoggerOptions } from "typeorm"
 import { Logger as _Logger } from "winston"
 import { Customer, User } from "../models"
-import { EmitOptions } from "../services/event-bus"
 import { FindConfig, RequestQueryFields } from "./common"
 
 declare global {
@@ -44,67 +39,4 @@ export type Logger = _Logger & {
 
 export type Constructor<T> = new (...args: any[]) => T
 
-type SessionOptions = {
-  name?: string
-  resave?: boolean
-  rolling?: boolean
-  saveUninitialized?: boolean
-  secret?: string
-  ttl?: number
-}
-
-export type ConfigModule = {
-  projectConfig: {
-    redis_url?: string
-
-    /**
-     * Global options passed to all `EventBusService.emit` in the core as well as your own emitters. The options are forwarded to Bull's `Queue.add` method.
-     *
-     * The global options can be overridden by passing options to `EventBusService.emit` directly.
-     *
-     * Note: This will be deprecated as we move to Event Bus module in 1.8
-     *
-     *
-     * Example
-     * ```js
-     * {
-     *    removeOnComplete: { age: 10 },
-     * }
-     * ```
-     *
-     * @see https://github.com/OptimalBits/bull/blob/develop/REFERENCE.md#queueadd
-     */
-    event_options?: Record<string, unknown> & EmitOptions
-
-    session_options?: SessionOptions
-
-    jwt_secret?: string
-    cookie_secret?: string
-
-    database_url?: string
-    database_type: string
-    database_database?: string
-    database_schema?: string
-    database_logging: LoggerOptions
-
-    database_extra?: Record<string, unknown> & {
-      ssl: { rejectUnauthorized: false }
-    }
-    store_cors?: string
-    admin_cors?: string
-  }
-  featureFlags: Record<string, boolean | string>
-  modules?: Record<
-    string,
-    | false
-    | string
-    | Partial<InternalModuleDeclaration | ExternalModuleDeclaration>
-  >
-  plugins: (
-    | {
-        resolve: string
-        options: Record<string, unknown>
-      }
-    | string
-  )[]
-}
+export type ConfigModule = CommonTypes.ConfigModule

packages/medusa/src/utils/sleep.ts

@@ -1,5 +1,3 @@
-export async function sleep(ms: number) {
-  return new Promise((resolve) => {
-    setTimeout(resolve, ms)
-  })
-}
+import { promisify } from "util"
+
+export const sleep = promisify(setTimeout)

packages/modules-sdk/src/definitions.ts

@@ -1,6 +1,18 @@
 import { ModuleDefinition, MODULE_RESOURCE_TYPE, MODULE_SCOPE } from "./types"
 
 export const MODULE_DEFINITIONS: ModuleDefinition[] = [
+  {
+    key: "eventBus",
+    registrationName: "eventBusModuleService",
+    defaultPackage: "@medusajs/event-bus-local",
+    label: "EventBusModuleService",
+    canOverride: true,
+    isRequired: true,
+    defaultModuleDeclaration: {
+      scope: MODULE_SCOPE.INTERNAL,
+      resources: MODULE_RESOURCE_TYPE.SHARED,
+    },
+  },
   {
     key: "stockLocationService",
     registrationName: "stockLocationService",

packages/stock-location/src/initialize/index.ts

@@ -1,15 +1,16 @@
-import { IEventBusService, IStockLocationService } from "@medusajs/medusa"
+import { IStockLocationService } from "@medusajs/medusa"
 import {
   ExternalModuleDeclaration,
   InternalModuleDeclaration,
-  MedusaModule,
+  MedusaModule
 } from "@medusajs/modules-sdk"
+import { EventBusTypes } from "@medusajs/types"
 import { StockLocationServiceInitializeOptions } from "../types"
 
 export const initialize = async (
   options?: StockLocationServiceInitializeOptions | ExternalModuleDeclaration,
   injectedDependencies?: {
-    eventBusService: IEventBusService
+    eventBusService: EventBusTypes.IEventBusService
   }
 ): Promise<IStockLocationService> => {
   const serviceKey = "stockLocationService"

packages/stock-location/src/services/stock-location.ts

@@ -3,13 +3,12 @@ import {
   CreateStockLocationInput,
   FilterableStockLocationProps,
   FindConfig,
-  IEventBusService,
   setMetadata,
   StockLocationAddressInput,
-  UpdateStockLocationInput,
+  UpdateStockLocationInput
 } from "@medusajs/medusa"
 import { InternalModuleDeclaration } from "@medusajs/modules-sdk"
-import { SharedContext } from "@medusajs/types"
+import { EventBusTypes, SharedContext } from "@medusajs/types"
 import { InjectEntityManager, MedusaContext } from "@medusajs/utils"
 import { isDefined, MedusaError } from "medusa-core-utils"
 import { EntityManager } from "typeorm"
@@ -17,7 +16,7 @@ import { StockLocation, StockLocationAddress } from "../models"
 
 type InjectedDependencies = {
   manager: EntityManager
-  eventBusService: IEventBusService
+  eventBusService: EventBusTypes.IEventBusService
 }
 
 /**
@@ -32,7 +31,7 @@ export default class StockLocationService {
   }
 
   protected readonly manager_: EntityManager
-  protected readonly eventBusService_: IEventBusService
+  protected readonly eventBusService_: EventBusTypes.IEventBusService
 
   constructor(
     { eventBusService, manager }: InjectedDependencies,

packages/types/package.json

@@ -16,6 +16,9 @@
   ],
   "author": "Medusa",
   "license": "MIT",
+  "dependencies": {
+    "@medusajs/modules-sdk": "^0.0.1"
+  },
   "devDependencies": {
     "cross-env": "^5.2.1",
     "typeorm": "^0.3.11",
@@ -24,6 +27,7 @@
   "scripts": {
     "prepare": "cross-env NODE_ENV=production yarn run build",
     "build": "tsc --build",
+    "watch": "tsc --build --watch",
     "test": "exit 0"
   }
 }

packages/types/src/bundles.ts

@@ -0,0 +1,4 @@
+export * as CommonTypes from "./common"
+export * as EventBusTypes from "./event-bus"
+export * as TransactionBaseTypes from "./transaction-base"
+