How Can I Serve Static HTML Files Using a Go Web Server?

Hosting Static HTML Files with a Go Web Server

Serving static HTML files is a fundamental aspect of web development. In Go, this task is easily accomplished using the net/http package. Here's how you can do it:

In your code:

package main

import (
    "net/http"
)

func main() {
    // Specify the folder containing the static HTML files
    staticDir := "./static"

    // Serve static files using the built-in FileServer handler
    http.Handle("/", http.FileServer(http.Dir(staticDir)))

    // Start listening for HTTP requests on port 3000
    http.ListenAndServe(":3000", nil)
}

This code mounts a file server that serves files from the specified staticDir at the root URL (/).

Serving Files from a Different URL

If you want to serve static files from a URL other than the root, you can use the http.StripPrefix function. For example, to serve files from the /static URL:

staticDir := "./public"
http.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.Dir(staticDir))))

This code will make files from the ./public directory accessible at localhost:3000/static.

By hosting static HTML files using this method, you can easily modify the HTML outside of the Go program, making it simple to maintain and update your web content.

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