How to protect Doorkeeper route in Rails?

Question

I'm using the Doorkeeper gem in a Rails 4.X app. Is there a way to protect the route for managing Oauth applications?

For example, I'd like this URL http://localhost:3000/oauth/applications to be available to the Devise users that are flagged as admins.

My current routes.rb looks like this.

Rails.application.routes.draw do
 mount RailsAdmin::Engine => '/admin', as: 'rails_admin'

 use_doorkeeper
 devise_for :users

Thanks for you help in advance.

Answer 1

Seems Doorkeeper can handle in it's initializer. Just add this and it works.

 admin_authenticator do
   redirect_to new_user_session_url unless current_user && current_user.admin?
 end