func main()

in observability/workload-metrics/main.go [96:123]

• 23 lines of code
• 3 McCabe index (conditional complexity)

func main() {
	parseFlags()
	go Random()
	go PollItself()

	// Example HTTP handler
	http.Handle("/", promhttp.InstrumentHandlerCounter(
		requestCount,
		http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
			random := rand.Intn(100)
			if random < 20 {
				w.WriteHeader(500)
				_, _ = fmt.Fprint(w, "Something went wrong :(")
				return
			}
			_, _ = fmt.Fprint(w, "Hello, world!")
		}),
	))
	// Expose Prometheus metrics
	http.Handle("/metrics", promhttp.HandlerFor(reg, promhttp.HandlerOpts{}))

	logger.Info("Starting HTTP server")
	err := http.ListenAndServe(":1234", nil)

	if err != nil {
		logger.Sugar().Errorf("ListenAndServe failed: %w", err)
	}
}