TIL: How to integrate Doorkeeper with Passwordless

This is just a quick post about how to integrate Doorkeeper with Passwordless in Rails.

The Doorkeeper documentation shows the standard Devise configuration, which is shown below:

Doorkeeper.configure do
  resource_owner_authenticator do
    current_user || warden.authenticate!(scope: :user)
  end
end

Here are the changes needed to make it work with Passwordless, assuming you have a current_user method in ApplicationController:

Doorkeeper.configure do
  resource_owner_authenticator do
    current_user
  end
end

So why does this work? Well, Doorkeeper::ApplicationController inherits from your ApplicationController by default and so we have access to all the methods from our ApplicationController.

The same is true for admin_authenticator.

Happy coding!