gistfile1.rb

if defined? EventMachine::HttpRequest
  EventMachine::HttpRequest.instance_eval do
    def request_with_newrelic_trace(*args, &block)
      metrics = ["External/#{@req.uri}/EventMachine::HttpRequest/#{args[0].method}","External/#{@address}/all"]
      
      if NewRelic::Agent::Instrumentation::MetricFrame.recording_web_transaction?
        metrics << "External/allWeb"
      else
        metrics << "External/allOther"
      end
      
      self.class.trace_execution_scoped metrics do
        request_without_newrelic_trace(*args, &block)
      end
    end
    
    alias request_without_newrelic_trace setup_request
    alias setup_request request_with_newrelic_trace
  end
end