request.rb

  class Request
    attr_reader :exception, :response
    
    def initialize(context = {})
      @context = context
    end
    
    def execute
      @response ||= Response.call(execute_request)
      self
    rescue RestClient::BadRequest => err
      @exception = err
      self
    end
    
    def success?
      @exception.nil? && @response.present?
    end
    
    private
    
    def execute_request
      RestClient::Request.execute(request_data)
    end
  end