go-web/main.go

package main

import (
	"context"
	"fmt"
	"log"
	"net/http"
	"os"
	"os/signal"
	"syscall"
	"time"

	"github.com/gin-gonic/gin"
)

func main() {
	core := gin.New()
	registerRouter(core)
	server := &http.Server{
		Addr:    ":8080",
		Handler: core,
	}

	go func() {
		server.ListenAndServe()
	}()

	// create quit channel
	quit := make(chan os.Signal, 1)

	// set notifier
	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM, syscall.SIGQUIT)

	<-quit
	fmt.Println("YOLO")

	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
	defer cancel()
	if err := server.Shutdown(ctx); err != nil {
		log.Fatal("server shutdown: ", err)
	}
}