Parent and child job using kue + node.js + Q.js based on node-job-queue example (https://github.com/prateekbhatt/node-job-queue/blob/master/nested-job-queue.js)

myjob.js

var kue = require('kue'),
    jobs = kue.createQueue();
var Q = require('q');

var db = {};

function parentJob(id, done) {
    var job = jobs.create('parent', {
        type: 'PARENT',
        id: id
    });
    job
        .on('complete', function() {
            console.log('Job', job.id, 'of type', job.data.type, '#', job.data.id, ' is done');
            done();
        })
        .on('failed', function() {
            console.log('Job', job.id, 'of type', job.data.type, '#', job.data.id, ' has failed');
            done();
        })
    job.save();
}

function childJob(cid, done) {
    var deferred = Q.defer();

    var job = jobs.create('child', {
        type: 'CHILD',
        cid: cid
    });
    job
        .on('complete', function() {
            console.log('Job', job.id, 'of type', job.data.type,
                '#', job.data.cid, ' is done');
            deferred.resolve({
                done: true,
                job: job.data,
                success: true
            });
        })
        .on('failed', function() {
            console.log('Job', job.id, 'of type', job.data.type,
                '#', job.data.cid, ' has failed');
            deferred.resolve({
                done: true,
                job: job.data,
                success: false
            });
        })
    job.save();
    return deferred.promise;
}

jobs.process('parent', function(job, done) {
    /* carry out all the parent job functions here */
    var promises = [
        job.data.id + '-' + 1,
        job.data.id + '-' + 2
    ].map(
        function(x) {
            return childJob(x, done)
        });

    Q.all(promises)
        .then(function(res) {
            console.log('all jobs for parent ', job.data.id,
                ' completed');
            console.log(res);
            done();
        });

})

jobs.process('child', function(job, done) {
    /* carry out all the child job functions here */
    setTimeout(function() {
        console.log('working on child job ' + job.data.cid);
        done();
    }, 2000);
})

parentJob(13, function() {});
parentJob(14, function() {});
parentJob(15, function() {});
parentJob(16, function() {});

Sample output:

working on child job 13-1
Job 350 of type CHILD # 13-1  is done
working on child job 13-2
Job 351 of type CHILD # 13-2  is done
all jobs for parent  13  completed
[ { done: true,
    job: { type: 'CHILD', cid: '13-1' },
    success: true },
  { done: true,
    job: { type: 'CHILD', cid: '13-2' },
    success: true } ]
Job 346 of type PARENT # 13  is done
working on child job 14-1
Job 352 of type CHILD # 14-1  is done
working on child job 14-2
Job 353 of type CHILD # 14-2  is done
all jobs for parent  14  completed
[ { done: true,
    job: { type: 'CHILD', cid: '14-1' },
    success: true },
  { done: true,
    job: { type: 'CHILD', cid: '14-2' },
    success: true } ]
Job 347 of type PARENT # 14  is done
working on child job 15-1
Job 354 of type CHILD # 15-1  is done
working on child job 15-2
Job 355 of type CHILD # 15-2  is done
all jobs for parent  15  completed
.....