request capture

capture.go

package main

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

func main() {
	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
		fmt.Fprintf(w, "%s %s HTTP/%d/%d\n", r.Method, r.URL.Path, r.ProtoMajor, r.ProtoMinor)
		r.Header.Write(w)
		fmt.Fprint(w, "\n")
		io.Copy(w, r.Body)
	})

	http.ListenAndServe(":8080", nil)
}