if err != nil {
		return nil, err
	}

	defer xhttp.DrainBody(resp.Body)
	if resp.StatusCode != http.StatusOK {
		// uncomment this for debugging when needed.
		// reqBytes, _ := httputil.DumpRequest(req, false)
		// fmt.Println(string(reqBytes))
		// respBytes, _ := httputil.DumpResponse(resp, true)
		// fmt.Println(string(respBytes))
		return nil, errors.New(resp.Status)
	}

	req.Header.Set("content-md5", "====test")
	jsonReq := dumpRequest(req)
	type jsonResult struct {
		Method     string      `json:"method"`
		RequestURI string      `json:"reqURI"`
		Header     http.Header `json:"header"`
	}
	res := jsonResult{}

}

// Global profiler to be used by service go-routine.
var (
	globalProfiler   map[string]minioProfiler
	globalProfilerMu sync.Mutex
)

// dump the request into a string in JSON format.
func dumpRequest(r *http.Request) string {
	header := r.Header.Clone()
	header.Set("Host", r.Host)
	// Replace all '%' to '%%' so that printer format parser
	// to ignore URL encoded values.

pkg net/http/httptest, type Server struct, Listener net.Listener
pkg net/http/httptest, type Server struct, TLS *tls.Config
pkg net/http/httptest, type Server struct, URL string
pkg net/http/httputil, func DumpRequest(*http.Request, bool) ([]uint8, error)
pkg net/http/httputil, func DumpRequestOut(*http.Request, bool) ([]uint8, error)
pkg net/http/httputil, func DumpResponse(*http.Response, bool) ([]uint8, error)