Medium > Intro to Go > Full HTTP server

main.go

// returns a `200 OK` response with the body `Hello World` to any incoming request
package main

import (
	"fmt"
	"net/http"
)

func helloWorld(writer http.ResponseWriter, request *http.Request) {
	writer.Write([]byte("Hello World"))
}

func main() {
	fmt.Println("Starting HTTP server")
	http.HandleFunc("/", helloWorld)
	err := http.ListenAndServe(":12345", nil)
	if err != nil {
		panic(err)
	}
}