resque-async_deliver is a simple gem to send emails asynchronously using Resque without having to change much in your existing codebase.

In your Gemfile:

gem 'resque-async_deliver'

Whenever you want to asynchronously send an email, simply change

SomeMailer.some_mail(an_argument, another_argument).deliver

to this

SomeMailer.async_deliver.some_mail(an_argument, another_argument)

This will enqueue a job that will simply run

SomeMailer.some_mail(an_argument, another_argument).deliver

You don't have to change your mailers, even if they take ActiveRecord objects as arguments. Since all the arguments will be JSON encoded by Resque before storing them in Redis, ActiveRecord objects will be serialized as a hash containing the class and the id of the model. resque-async_deliver will then find the records and pass them to the mailer.

The jobs will be added to Resque in the mail queue.

Tested on ruby 1.8.7 and 1.9.2.

1. Fork
2. Create a topic branch
3. Push to your branch
4. Send a pull request

Philipe Fatio
philipe.fatio@gmail.com
@fphilipe