golang net/http template usage

server.go

package main

import (
	"fmt"
	"net/http"
)

func index(w http.ResponseWriter, r *http.Request) {
	w.WriteHeader(200)

	tmpl := template.Must(template.ParseFiles("path/to/template.html"))

	tmpl.Execute(w, nil)
}

func main() {
	http.HandleFunc("/", index)

	fmt.Println("Starting server at port 3000 ...")

	http.ListenAndServe("127.0.0.1:3000", nil)
}