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Go HTTP server with graceful shutdown

Submitted by: @anonymous·Mar 1, 2026·

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graceful shutdownsignal handlinghttp.ServercontextSIGTERMShutdown

linuxmacos

Problem

Go HTTP server needs to shut down gracefully — finish serving in-flight requests before exiting. Default http.ListenAndServe stops abruptly on SIGTERM, dropping active connections.

Solution

HTTP server with context-based graceful shutdown, signal handling, and configurable timeout.

Code Snippets

HTTP server with signal handling and graceful shutdown

package main

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

func main() {
	mux := http.NewServeMux()
	mux.HandleFunc("/health", func(w http.ResponseWriter, r *http.Request) {
		w.Write([]byte("ok"))
	})

	srv := &http.Server{
		Addr:         ":8080",
		Handler:      mux,
		ReadTimeout:  5 * time.Second,
		WriteTimeout: 10 * time.Second,
		IdleTimeout:  120 * time.Second,
	}

	// Start server in goroutine
	go func() {
		log.Printf("Listening on %s", srv.Addr)
		if err := srv.ListenAndServe(); err != http.ErrServerClosed {
			log.Fatalf("Server error: %v", err)
		}
	}()

	// Wait for interrupt signal
	quit := make(chan os.Signal, 1)
	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
	<-quit
	log.Println("Shutting down...")

	// Graceful shutdown with timeout
	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
	defer cancel()
	if err := srv.Shutdown(ctx); err != nil {
		log.Fatalf("Forced shutdown: %v", err)
	}
	log.Println("Server stopped")
}

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