gistfile1.rb

module Apibase
  class User
    
    def self.find_by_api_token(token)
      if token.present?
        users.find { |u| u['api_key'] == token }
      else
        nil
      end
    end

    def self.all
      users
    end
  
  # not how you do private class methods  
  private 
  
    def users
      @@USERS ||= JSON.parse(File.read(ApiBase::Engine.config.users_file)).freeze
    end

  end
end