Devise Async Build Status

Devise Async provides an easy way to configure Devise to send its emails asynchronously using your preferred queuing backend.

Supported backends:

  • Resque
  • Sidekiq
  • Delayed::Job
  • QueueClassic
  • Torquebox


Add this line to your application's Gemfile:

gem 'devise-async'

And then execute:

$ bundle

Or install it yourself as:

$ gem install devise-async


Add :async to the devise call in your model:

class User < ActiveRecord::Base
  devise :database_authenticatable, :async, :confirmable # etc ...

Set your queuing backend by creating config/initializers/devise_async.rb:

# Supported options: :resque, :sidekiq, :delayed_job, :queue_classic, :torquebox
Devise::Async.backend = :resque

Tip: it defaults to Resque. You don't need to create the initializer if using it.

Advanced Options

Enabling via config

The gem can be enabled/disabled easily via config, for example based on environment.

# config/initializers/devise_async.rb
Devise::Async.enabled = true # | false

Custom mailer class

Customize Devise.mailer at will and devise-async will honor it.

Upgrade note: if you're upgrading from any version < 0.6 and getting errors trying to set Devise::Async.mailer just use Devise.mailer instead.

Custom queue

Let you specify a custom queue where to enqueue your background Devise jobs. Defaults to :mailer.

# config/initializers/devise_async.rb
Devise::Async.queue = :my_custom_queue

Setup via block

To avoid repeating Devise::Async in the initializer file you can use the block syntax similar do what Devise offers.

# config/initializers/devise_async.rb
Devise::Async.setup do |config|
  config.enabled = true
  config.backend = :resque
  config.queue   = :my_custom_queue


Be aware that since version 0.3.0 devise-async enqueues the background job in active record's after_commit hook. If you're using rspec's use_transactional_fixtures the jobs might not be enqueued as you'd expect.

More details in this stackoverflow thread.

Devise < 2.2

Older versions of Devise are supported in the devise_2_1 branch and in the 0.5 series of devise-async.

Please refer to that branch README for further info.


  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Added some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request


Released under the MIT License. See the LICENSE file for further details.