---
title: crwdns60634:0crwdne60634:0
image: crwdns60636:0crwdne60636:0
---

<Frame>
  <img src="/images/user-guide/emails/emails_header.png" alt="Header" />
</Frame>

crwdns60638:0crwdne60638:0 crwdns60640:0crwdne60640:0
crwdns60642:0crwdne60642:0

crwdns60644:0https://bullmq.io/crwdne60644:0

## crwdns60646:0crwdne60646:0

1. crwdns60648:0crwdne60648:0
2. crwdns60650:0crwdne60650:0
3. crwdns60652:0crwdne60652:0
4. crwdns60654:0crwdne60654:0

### crwdns60656:0crwdne60656:0

```ts
class Resolver {
  constructor(@Inject(MESSAGE_QUEUES.custom) private queue: MessageQueueService) {}

  async onSomeAction() {
    //business logic
    await this.queue.add(someData);
  }
}

//async worker
class CustomWorker {
  constructor(@Inject(MESSAGE_QUEUES.custom) private queue: MessageQueueService) {
    this.initWorker();
  }

  async initWorker() {
    await this.queue.work(async ({ id, data }) => {
      //worker logic
    });
  }
}
```