Resque Failure Backend example

email_notification.rb

require 'resque/failure/base'
require 'mail'

module Resque
  module Failure
    class EmailNotification < Base
      def save
        subject = "[FATAL] Resque #{queue}:#{worker}"
        body = "#{exception.class} #{exception.to_s}\n#{exception.backtrace.join("\n")}"
        Mail.defaults do
          delivery_method :sendmail
        end
        Mail.deliver do
          from 'kyanny@gmail.com'
          to   'kyanny@gmail.com'
          subject subject
          body body
        end
      rescue => e
        puts "#{e.class} #{e.to_s}"
        puts e.backtrace.join("\n")
      end
    end
  end
end

Gemfile

source :rubygems

gem 'resque'

Gemfile.lock

GEM
  remote: http://rubygems.org/
  specs:
    multi_json (1.3.7)
    rack (1.4.1)
    rack-protection (1.2.0)
      rack
    redis (3.0.2)
    redis-namespace (1.2.1)
      redis (~> 3.0.0)
    resque (1.23.0)
      multi_json (~> 1.0)
      redis-namespace (~> 1.0)
      sinatra (>= 0.9.2)
      vegas (~> 0.1.2)
    sinatra (1.3.3)
      rack (~> 1.3, >= 1.3.6)
      rack-protection (~> 1.2)
      tilt (~> 1.3, >= 1.3.3)
    tilt (1.3.3)
    vegas (0.1.11)
      rack (>= 1.0.0)

PLATFORMS
  ruby

DEPENDENCIES
  resque

job.rb

class MyException < Exception; end

module Job
  @queue = :job

  def self.perform
    raise MyException, 'Error! Error! Error!'
  end
end

Rakefile

require './resque_config'
require './job'
require 'resque/tasks'

desc 'enqueue'
task :enqueue do
  Resque.enqueue(Job)
end

resque_config.rb

require 'resque'
require 'resque/failure/multiple'
require 'resque/failure/redis'
require './email_notification'

Resque::Failure::Multiple.configure do |multi|
  multi.classes = [Resque::Failure::Redis, Resque::Failure::EmailNotification]
end