Rails4 - How to inherit from RocketPants::Base while writing API?

I am trying to create API for my Rails app. I have these following controllers.

I have the following inheritance

/app/controllers/api/api_controller.rb

module Api
  class ApiController < ApplicationController
  # logic

/app/controllers/api/home_page_controller.rb

class Api::HomePageController < Api::ApiController
   # logic

/app/controllers/api/users_controller.rb

class Api::UsersController < Api::ApiController
   # logic

/app/controllers/api/sessions_controller.rb

class Api::SessionsController < Api::ApiController
   # logic

/app/controllers/application_controller.rb

class ApplicationController < ActionController::Base
  # Prevent CSRF attacks by raising an exception.
  # For APIs, you may want to use :null_session instead.

  protect_from_forgery with: :exception

  # logic

When I try to inherit from RocketPants::Base like the following as mentioned in https://github.com/Sutto/rocket_pants

/app/controllers/api/api_controller.rb

module Api
  class ApiController < RocketPants::Base
    skip_before_filter :verify_authenticity_token

    protect_from_forgery with: :null_session
     # logic

I get errors like this

Started POST "/api/sessions" for 104.155.204.133 at 2015-04-21 22:59:56 +0000
  ActiveRecord::SchemaMigration Load (0.2ms)  SELECT "schema_migrations".* FROM "schema_migrations"

ActionController::RoutingError (undefined method `protect_from_forgery' for Api::ApiController:Class):
  app/controllers/api/api_controller.rb:11:in `<class:ApiController>'
  app/controllers/api/api_controller.rb:2:in `<module:Api>'
  app/controllers/api/api_controller.rb:1:in `<top (required)>'
  app/controllers/api/sessions_controller.rb:2:in `<top (required)>'


  Rendered /usr/local/rvm/gems/ruby-2.1.4/gems/web-console-2.0.0.beta4/lib/action_dispatch/templates/rescues/_trace.html.erb (3.6ms)
  Rendered /usr/local/rvm/gems/ruby-2.1.4/gems/web-console-2.0.0.beta4/lib/action_dispatch/templates/routes/_route.html.erb (40.7ms)
  Rendered /usr/local/rvm/gems/ruby-2.1.4/gems/web-console-2.0.0.beta4/lib/action_dispatch/templates/routes/_table.html.erb (19.0ms)
  Rendered /usr/local/rvm/gems/ruby-2.1.4/gems/web-console-2.0.0.beta4/lib/action_dispatch/templates/rescues/routing_error.html.erb within rescues/layout (266.2ms)
104.155.204.133 - - [21/Apr/2015:22:59:57 +0000] "POST /api/sessions HTTP/1.1" 404 97164 1.1316

I have added the gem and executed bundle install.

Gemfile

gem 'rocket_pants', '~> 1.10.0'

Can someone kindly guide me how to add rocketpants?

Removed the skip_before_filter and protect_from_forgery lines from controller. All errors are gone.