How Can I Gracefully Handle End-of-Execution Actions in a Go HTTP Server on Linux?

Handling End-of-Execution Actions for HTTP Servers

An HTTP server started with http.Handle often requires specific actions upon termination. This article explores solutions for executing these actions effectively on Linux systems.

One approach involves capitalizing on Unix signals, particularly the SIGINT signal triggered by a Ctrl-C interrupt. By registering a signal handler for SIGINT, it becomes possible to perform custom operations before the process exits.

The following code demonstrates this method:

import (
    "log"
    "os"
    "os/signal"
    "syscall"
)

func main() {
    sigchan := make(chan os.Signal, 1)
    signal.Notify(sigchan, syscall.SIGINT)

    go func() {
        <-sigchan // Wait for SIGINT signal
        log.Println("Program killed !")

        // Perform end-of-execution actions here
        // Wait for write operations to complete

        os.Exit(0)
    }()

    // Start HTTP server and associated tasks
}

By setting up a dedicated goroutine to handle the SIGINT signal, the primary goroutine can focus on executing the main program tasks. Upon receiving the SIGINT, the dedicated goroutine triggers the cleanup actions, allowing for a graceful exit.

The above is the detailed content of How Can I Gracefully Handle End-of-Execution Actions in a Go HTTP Server on Linux?. For more information, please follow other related articles on the PHP Chinese website!