This is IronMQ backend for delayed_job

Heroku users: Simply add the IronMQ add-on and you can skip the rest of this section. It will be setup automatically when you add the IronMQ add-on.

To start using delayed_job_ironmq, you need to sign up for Iron.io and setup your credentials.

1. Go to http://iron.io/ and sign up.
2. Get an Oauth Token at http://hud.iron.io/tokens
3. Add an iron.json file or setup environment variables for authentication. See http://dev.iron.io/articles/configuration/ for details.

Add the gems to your Gemfile:

gem 'delayed_job'
gem 'delayed_job_ironmq'

Optionally: Add an initializer (config/initializers/delayed_job.rb):

Delayed::Worker.configure do |config|
  # optional params:
  config.available_priorities = [-1,0,1,2] # Default is [0]. Please note, adding new priorities will slow down picking the next job from queue.  Also note that these priorities must include all priorities of your Delayed Jobs.
  config.queue_name = 'default' # Specify an alternative queue name
  config.delay = 0  # Time to wait before message will be available on the queue
  config.timeout = 5.minutes # The time in seconds to wait after message is taken off the queue, before it is put back on. Delete before :timeout to ensure it does not go back on the queue.
  config.expires_in = 7.days # After this time, message will be automatically removed from the queue.
end

That's it. Use delayed_job as normal.

Example:

class User
  def background_stuff
    puts "I run in the background"
  end
end

Then in one of your controllers:

user = User.new
user.delay.background_stuff

rake jobs:work

That will start pulling jobs off the queue and processing them.

If you are using the last versions of delayed_job gem you can see the following error while running the above example :

Error while reserving job: undefined class/module User

To fix it move the user.rb file to lib/tasks/user.rake (user.rb should be renamed to user.rake) or add the path to user.rb in Rakefile:

require File.expand_path('path_to_user.rb', __FILE__)

Here's a demo rails app you can clone and try it out: https://github.com/treeder/delayed_job_ironmq_example

To use with Heroku, just add the IronMQ Add-on and you're good to go.

You can find more documentation here:

• http://iron.io
• http://dev.iron.io