Handling requests with Rack and Rails

The Clerk Ruby SDK comes with Rack middleware to lazily load the Clerk session and user. If added as a gem to Rails application, the Clerk::Authenticatable concern can be added to your controller.

require "clerk/authenticatable"

class ApplicationController < ActionController::Base
  include Clerk::Authenticatable
end

This gives your controller and views access to the Clerk helper method:

• clerk.session
• clerk.user
• clerk.user_signed_in?
• clerk.sdk

If you want to protect a subset of your controllers (for example, if you have an admin section), you can add a before_filter like this:

class AdminController < ApplicationController
  before_action :require_clerk_session

  private

  def require_clerk_session
    redirect_to clerk.sign_in_url unless clerk_session
  end
end