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@nestjs/bull

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@nestjs/bull

Nest - modern, fast, powerful node.js web framework (@bull)

  • 0.4.0
  • Source
  • npm
  • Socket score

Version published
Weekly downloads
283K
decreased by-1.32%
Maintainers
2
Weekly downloads
 
Created

What is @nestjs/bull?

@nestjs/bull is a package for the NestJS framework that provides integration with Bull, a popular library for handling distributed job queues. It allows you to create, manage, and process jobs in a queue, making it useful for background processing, task scheduling, and more.

What are @nestjs/bull's main functionalities?

Creating a Queue

This code demonstrates how to set up a queue named 'my-queue' using the @nestjs/bull package. It configures the connection to a Redis server and registers the queue within a NestJS module.

```typescript
import { BullModule } from '@nestjs/bull';

@Module({
  imports: [
    BullModule.forRoot({
      redis: {
        host: 'localhost',
        port: 6379,
      },
    }),
    BullModule.registerQueue({
      name: 'my-queue',
    }),
  ],
})
export class AppModule {}
```

Adding Jobs to a Queue

This code shows how to add jobs to a queue. The `MyService` class injects the 'my-queue' queue and uses the `addJob` method to add a job with the provided data.

```typescript
import { InjectQueue } from '@nestjs/bull';
import { Queue } from 'bull';
import { Injectable } from '@nestjs/common';

@Injectable()
export class MyService {
  constructor(@InjectQueue('my-queue') private readonly myQueue: Queue) {}

  async addJob(data: any) {
    await this.myQueue.add(data);
  }
}
```

Processing Jobs

This code demonstrates how to process jobs in a queue. The `MyQueueProcessor` class is decorated with `@Processor('my-queue')` to indicate it will handle jobs from 'my-queue'. The `handleJob` method processes each job.

```typescript
import { Processor, Process } from '@nestjs/bull';
import { Job } from 'bull';

@Processor('my-queue')
export class MyQueueProcessor {
  @Process()
  async handleJob(job: Job) {
    console.log('Processing job:', job.data);
    // Add your job processing logic here
  }
}
```

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Package last updated on 07 Jul 2021

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