main.go

package main

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

	"github.com/gin-gonic/gin"

	"github.com/fantasyhh/drizzle/models"
	"github.com/fantasyhh/drizzle/pkg/setting"
	"github.com/fantasyhh/drizzle/routers"
)

func init() {
	setting.Setup()
	models.Setup()

}
func main() {
	gin.DisableConsoleColor()
	// Logging to a file.
	f, _ := os.Create("gin.log")
	gin.DefaultWriter = io.MultiWriter(f)

	gin.SetMode(setting.ServerSetting.RunMode)

	routersInit := routers.InitRouter()
	readTimeout := setting.ServerSetting.ReadTimeout
	writeTimeout := setting.ServerSetting.WriteTimeout
	endPoint := fmt.Sprintf(":%d", setting.ServerSetting.HTTPPort)
	maxHeaderBytes := 1 << 20

	server := &http.Server{
		Addr:           endPoint,
		Handler:        routersInit,
		ReadTimeout:    readTimeout,
		WriteTimeout:   writeTimeout,
		MaxHeaderBytes: maxHeaderBytes,
	}

	//https://github.com/gin-gonic/examples/blob/master/graceful-shutdown/graceful-shutdown/server.go
	go func() {
		if err := server.ListenAndServe(); err != nil && err != http.ErrServerClosed {
			log.Fatalf("listen: %s\n", err)
		}
	}()

	quit := make(chan os.Signal)
	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
	<-quit
	log.Println("Shutting down server...")

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

	log.Println("Server exiting")
}