// status code and to record the response body
type ResponseRecorder struct {
	http.ResponseWriter
	io.ReaderFrom
	StatusCode int
	// Log body of 4xx or 5xx responses
	LogErrBody bool
	// Log body of all responses
	LogAllBody bool

	ttfbHeader time.Duration
	ttfbBody   time.Duration

	StartTime time.Time
	// number of bytes written
	bytesWritten int

		tc, ok := r.Context().Value(mcontext.ContextTraceKey).(*mcontext.TraceCtxt)
		if ok {
			tc.FuncName = "handler.MetricsV3"
			tc.ResponseRecorder.LogErrBody = true
		}

		innerHandler.ServeHTTP(w, r)
	})

	// Add authentication
	h.auth(tracedHandler).ServeHTTP(w, r)

			return
		}

		tc.FuncName = getOpName(runtime.FuncForPC(reflect.ValueOf(f).Pointer()).Name())
		tc.RequestRecorder.LogBody = logBody
		tc.ResponseRecorder.LogAllBody = logBody
		tc.ResponseRecorder.LogErrBody = true

		f.ServeHTTP(w, r)
	}
}

func httpTraceAll(f http.HandlerFunc) http.HandlerFunc {
	return httpTrace(f, true)
}

func httpTraceHdrs(f http.HandlerFunc) http.HandlerFunc {