Controllers decoupling rails

cli

> sp = ServicePoro.call(
  arg1: 'fu',
  on_sucess: -> (text) { puts "#{text}bar" }
> fubar

gistfile1.txt

class FooController
  def index
    ServicePoro.call(
      arg1: 'foo',
      on_success: -> (data) { render_json(data, root: "meta") }
    )
  end
end

service_poro.rb

class ServicePoro
  include Callable
  attr_reader :on_success
  
  def initialize(arg1:, on_sucess:)
    @arg1 = arg1
    @on_success = on_success
  end
  
  def call
    # setup
    # execute
    on_success.call
  end
end