gistfile1.rb

concern :data_routes do |options|
    collection do
      get 'download'
      get 'list'
      post 'batch_preview'
      get 'autocomplete'
    end
    member do
      post 'search'
    end
  end

 resources :otus do
    concerns [:data_routes]
end

# otus/search (badly formed id) raises