Thin controller using service

thin_controller_using_service.rb

class ThinController < ApplicationController
  def index
    @cards = OysterCard.order(balance: :desc)
  end

  def show
  end


  def swipe_out
    @card = OysteCard.find(params[:id])
    authorize @card # uses a Pundit policy to determine whether or not the current user is authorised to update this card

    service = SwipeOutService.new(@card, params[:swipe_out][journey_end_station_id))
    service.call
    if service.result == :ok
      redirect_to card_show_path
    else
      flash[:alert] = service.alerts
      render :swipe_out
    end
  end

end