Most of Ruby developers use celluloid because it’s very easy to use for asynchronous tasks. If someone want to do a process in background they can simply do it by one keyword. The keyword is async.

Here is a simple example to show the usage of Async feature.

require 'celluloid/current'

class Rocket
  include Celluloid

  def launch
    for i in 0..5
      sleep 2
      puts "Counting.....#{i}"
    end
    puts "Blast off"
  end
end

rocket = Rocket.new

rocket.async.launch

That launch method is running in the background.

Cheers, DilumN