adonis-queue

Adonis Queue Provider

A job queuing provider that leverages Bull for the AdonisJS framework.

This library provides an easy way to get started with an asynchronous job queue for AdonisJS.

Install

npm install --save adonis-bull

Configure

Register it in bootstrap/app.js:

const providers = [
  ...
  'adonis-queue/providers/QueueProvider'
]

Also consider adding an alias to the provider.

const aliases = {
  ...
  Queue: 'Adonis/Addons/Queue'
}

Register the commands:

const aceProviders = [
  ...
  'adonis-queue/providers/CommandsProvider'
];

...

const commands = [
  ...
  'Adonis/Commands/Queue:Listen'
];

Add a configuration file in config/queue.js. For example:

'use strict';

const Env = use('Env');

module.exports = {
  redis: {
    connectionString: 'redis://localhost:6379'
  }
};

Usage

Starting the listener

Starting an instance of the queue listener is easy with the included ace command. Simply run ./ace queue:listen.

The provider looks for jobs in the app/Jobs directory of your AdonisJS project and will automatically register a handler for any jobs that it finds.

Creating your first job

Jobs are easy to create. They live in app/Jobs and they are a simple class. They expose the following properties:

Name	Required	Type	Static	Description
concurrency	false	number	true	The number of concurrent jobs the handler will accept
key	true	string	true	A unique key for this job
handle	true	function	false	A function that is called for this job.

Here's an example.

Dispatching jobs

Now that your job listener is running and ready to do some asynchronous work, you can start dispatching jobs.

const queue = use('Queue');
const Job = require('./app/Jobs/Example');
const data = { test: 'data' };
queue.dispatch(Job.key, data);

Thanks

Special thanks to the creator(s) of AdonisJS for creating such a great framework.