case.rb

class Case
  def self.build(params)
    new.build(params)
  end

  def build(params)
    create_airware_case(params)
  end

  private
  attr_reader :client

  def client
    @client ||= Restforce.new
  end

  def create_airware_case(params)
    client.create('case', params)
  end
end