socialforge/app/api/mobile/api.rb

module Mobile

  $LOAD_PATH << File.expand_path('..',__FILE__)

  autoload :Auth,  'apis/auth'
  autoload :Users, 'apis/users'
  autoload :Courses, 'apis/courses'

  class API < Grape::API
    version 'v1', using: :path
    format :json
    content_type :json, "application/json;charset=UTF-8"

    helpers do
      def logger
        API.logger
      end

      def authticate!
        error!('Unauthorized. Invalid or expired token.', 401) unless current_user
      end

      def current_user
        token = ApiKey.where(access_token: params[:token]).first
        if token && !token.expired?
          @current_user = User.find(token.user_id)
        else
          nil
        end
      end
    end

    mount Auth
    mount Users
    mount Courses

  end
end