⏲️ shutdown

shutdown - Simple go signals handler for performing graceful shutdown by executing callback function

📖 ABOUT

Contributors:

• Rafał Lorenz

Want to contribute ? Feel free to send pull requests!

Have problems, bugs, feature ideas? We are using the github issue tracker to manage them.

📚 Documentation

For examples visit godoc#pkg-examples

For GoDoc reference, visit pkg.go.dev

🚏 HOW TO USE

For detailed breakdown of example How to handle signals with Go to graceful shutdown HTTP server

🏫 Basic example

package main

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

    "github.com/vardius/shutdown"
)

func main() {
	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()

	mux := http.NewServeMux()
	mux.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) {
		fmt.Fprintf(w, "Hello!")
	})

	httpServer := &http.Server{
		Addr:    ":8080",
		Handler: mux,
		BaseContext: func(_ net.Listener) context.Context { return ctx },
	}

	stop := func() {
		gracefulCtx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
		defer cancel()

		if err := httpServer.Shutdown(gracefulCtx); err != nil {
			log.Printf("shutdown error: %v\n", err)
		} else {
			log.Printf("gracefully stopped\n")
		}
	}

	// Run server
	go func() {
		if err := httpServer.ListenAndServe(); err != http.ErrServerClosed {
			log.Printf("HTTP server ListenAndServe: %v", err)
			os.Exit(1)
		}
	}()

	shutdown.GracefulStop(stop) // will block until shutdown signal is received
}

📜 License

This package is released under the MIT license. See the complete license in the package