Go HTTP Server minimal example

package main

import (

func main() {
    http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
        fmt.Fprintf(w, "Hello world!")

    // log.Fatal shows you if there is an error like the
    //  port already being used
    log.Fatal(http.ListenAndServe(":8080", nil))

Save this file as Main.go in a directory called GoHTTPServer, run go build && ./GoHTTPServer. Then, open http://localhost:8080 in your browser and see the result for yourself.