Simple http dump server

main.go

package main

import (
	"flag"
	"fmt"
	"log"
	"net/http"
	"net/http/httputil"
)

func handler(w http.ResponseWriter, r *http.Request) {
	b, err := httputil.DumpRequest(r, true)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	// titulo verde
	ret := fmt.Sprintf("\033[32mDumped request:\033[0m\n%s\n", string(b))

	fmt.Printf(ret)
	// linha magenta
	fmt.Printf("\033[35m-----------------------\033[0m\n")
	w.Write([]byte(ret))
}

func main() {
	port := 8080

	flag.IntVar(&port, "port", port, "TCP port, default 8080")
	flag.Parse()

	http.HandleFunc("/", handler)

	fmt.Printf("listening on %v\n", port)

	err := http.ListenAndServe(fmt.Sprintf(":%d", port), nil)
	if err != nil {
		log.Fatal(err)
	}
}