rest-api/main.go

package main

import (
	"context"
	"fmt"
	"log"
	"os"
	"os/signal"
	"time"
)

func main() {
	fmt.Println("Hello world!")

	s := Server{
		port: ":9999",
	}

	go func() {
		s.serve()
	}()

	signCh := make(chan os.Signal)
	signal.Notify(signCh, os.Interrupt)
	signal.Notify(signCh, os.Kill)

	sig := <-signCh
	log.Println("Received terminal, graceful shutdown", sig)

	tc, _ := context.WithTimeout(context.Background(), 30*time.Second)
	s.shutdown(tc)
}