sinatra_background_threadpool.rb

# ala https://www.onli-blogging.de/1463/Sinatra-Code-im-Hintergrund-ausfuehren.html

require 'sinatra/base'
require 'thread/pool'

class Transcode
  ThreadPool = Thread.pool(2)

  def initialize message
    ThreadPool.process do
      transcode message
    end
  end

  def transcode message
    (0..10).each do |i|
      puts "#{i}: #{message}"
      sleep 1
    end
  end

end


class API < Sinatra::Application
  get '/:m' do
    Transcode.new params[:m]
  end

  run! if app_file == $0
end