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bull

Job manager

  • 3.0.0-alpha.3
  • Source
  • npm
  • Socket score

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What is bull?

Bull is a Node library that implements a fast and robust queue system based on Redis. It is designed to handle background jobs and message queues, providing features like job scheduling, concurrency control, and job prioritization.

What are bull's main functionalities?

Job Creation

This feature allows you to create and add jobs to a queue. The code sample demonstrates how to create a queue named 'myQueue' and add a job with data { foo: 'bar' } to it.

const Queue = require('bull');
const myQueue = new Queue('myQueue');

myQueue.add({ foo: 'bar' });

Job Processing

This feature allows you to define a processor for the jobs in the queue. The code sample shows how to process jobs in 'myQueue' by logging the job data and performing some processing.

myQueue.process(async (job) => {
  console.log(job.data);
  // Process the job
});

Job Scheduling

This feature allows you to schedule jobs to be processed at a later time. The code sample demonstrates how to add a job to 'myQueue' that will be processed after a delay of 60 seconds.

myQueue.add({ foo: 'bar' }, { delay: 60000 });

Job Prioritization

This feature allows you to set the priority of jobs in the queue. The code sample shows how to add a job with a priority of 1 to 'myQueue'. Higher priority jobs are processed before lower priority ones.

myQueue.add({ foo: 'bar' }, { priority: 1 });

Concurrency Control

This feature allows you to control the number of concurrent job processors. The code sample demonstrates how to process up to 5 jobs concurrently in 'myQueue'.

myQueue.process(5, async (job) => {
  console.log(job.data);
  // Process the job
});

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Package last updated on 29 Apr 2017

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