Route Constraints and other integrations

You can leverage the Doorkeeper.authenticate facade to easily extract a Doorkeeper::OAuth::Token based on the current request. You can then ensure that token is still good, find its associated #resource_owner_id, etc.

module Constraint
  class Authenticated

    def matches?(request)
      token = Doorkeeper.authenticate(request)
      token&.accessible?
    end
  end
end

For more information about integration and other integrations, check out the related wiki page.