fab-manager/app/views/api/machines/index.json.jbuilder

json.cache! @machines do
  json.array!(@machines) do |machine|
    json.extract! machine, :id, :name, :description, :spec, :slug
    json.url machine_url(machine, format: :json)
    json.machine_image machine.machine_image.attachment.medium.url if machine.machine_image
  end
end