derailed / wide_receiver

Work queue system in which the worker classes decide which messages to process.

Wide Receiver

Wide Receiver is a work queue system in which the worker classes decide which messages to process.

Installation

Add this line to your application's Gemfile:

gem 'wide_receiver'

And then execute:

$ bundle

Or install it yourself as:

$ gem install wide_receiver

Usage

Create a worker class that extends WideReceiver::Worker and specifies which channel patterns it wants to process:

class Rice
  extend WideReceiver::Worker
  listen 'montana.pass.*'

  def perform(channel, message)
    # do something with message
  end
end

Start the master process:

bundle exec wide_receiver config/wide_receiver.rb

This will start one thread per unique channel pattern. When a message is received on a matching channel, each worker class that expressed interest in that pattern will be instantiated, and the instance will receive the message.

The config file should set the queue_url, (optionally) the message format, and require all your worker classes. Here's an example config file from a Rails project:

require_relative 'environment'

WideReceiver::Config.instance.queue_url = Redis.current.id
WideReceiver::Config.instance.message_format = :json

Dir[Rails.root.join('app/workers/wide_receiver/*.rb')].each do |worker|
  require worker
end

TODO

• add support for RabbitMQ

Contributing

1. Fork it ( http://github.com/rubysolo/wide_receiver/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request