Simple http server skeleton in Go

server.go

package main

import (
  "fmt"
	"net/http"
	"os"
	"io/ioutil"
)

func main() {
	http.HandleFunc("/", root)
	port := os.Getenv("PORT")
	if len(port) == 0 {
		port = "9999"
	}
	fmt.Println("listening on port: ", port)
	err := http.ListenAndServe(":" + port, nil)
	if err != nil {
	  panic(err)
	}
}

//routes
func root(res http.ResponseWriter, req *http.Request) {
	body, err := ioutil.ReadAll(req.Body)
	if err != nil {
		fmt.Fprintf(res, "[ERROR] parsing body : %s", err)
		return
	}
	
	response := "Remote: "
	switch req.Method {
		case "GET":
			response = response + "getting a GET request with body: " + string(body)
			
		case "POST":
			response = response + "getting a POST request with body: " + string(body)
			
		case "PUT":
			response = response + "getting a PUT request with body: " + string(body)
			
		case "DEL":
			response = response + "getting a DEL request with body: " + string(body)
			
		default:
			response = response + "getting an unknown request"
			
	}
	fmt.Fprintf(res, response)
}