Logging with ActiveSupport

gistfile1.rb

require 'sinatra'
require 'active_support'

require 'logger'

class SinatraTest < Sinatra::Application
  class TestClass
    def initialize
      ActiveSupport::Notifications.instrument("log", :level => Logger::INFO, :message => "my message" )
    end
  end

  before do
    @log_subscriber = ActiveSupport::Notifications.subscribe("log") do |name, start, finish, id, payload|
      logger.log(payload[:level],payload[:message])
    end
  end

  after do
    ActiveSupport::Notifications.unsubscribe(@log_subscriber)
  end

  get '/' do
    TestClass.new
  end

  run!
end