service-b.go

package main

import (
	"github.com/arriqaaq/boomerang"
	lucio "github.com/arriqaaq/server"
	"github.com/prometheus/client_golang/prometheus/promhttp"
	"log"
	"net/http"
	"os"
	"time"
)

func main() {

	promCtx := boomerang.NewPrometheusMetrics("service_b", "service_b")
	mux := http.NewServeMux()
	mux.HandleFunc("/pong", func(w http.ResponseWriter, req *http.Request) {
		begin := time.Now()
		time.Sleep(3 * time.Millisecond)
		promCtx.Record(begin, 200, nil)
		w.Write([]byte("pong"))
		return
	})
	mux.Handle("/metrics", promhttp.Handler())
	server := lucio.NewServer(mux, "0.0.0.0", 8081)
	err := server.Serve()
	log.Println("terminated", os.Getpid(), err)
}