How to get notified when a new job in redis is added

Question

I am implementing redis queue with Kue in my nodejs app. I have an API which will add email jobs to an email queue. Is it a good practice to have a cron job listening to the redis email queue for new jobs or is there a way by which an event is fired from the node.js app when a new email job is entered and caught from a separate node.js app to process it. I'm a little confused on the right approach.

Answer 1

First, there are good events supplied by Kue:

https://github.com/Automattic/kue#queue-events

queue.on('job enqueue', function(id, type){
  console.log( 'Job %s got queued of type %s', id, type );
});

However, it seems from your question that you don't only want to be notified of jobs in the queue but instead you want to process these jobs as they are enqueued.

https://github.com/Automattic/kue#processing-jobs

queue.process('email', function(job, done){
  // do something with job.data
  // callback to done
  email(job.data.to, done);
});