if err != nil {
		return resp, err
	}
	switch any(req).(type) {
	case *MSS, *URLValues:
		ctx = context.WithValue(ctx, TraceParamsKey{}, req)
	case *NoPayload, *Bytes:
		// do not need to trace nopayload and bytes payload
	default:
		ctx = context.WithValue(ctx, TraceParamsKey{}, fmt.Sprintf("type=%T", req))
	}
	if h.callReuseReq {
		defer h.recycleReq(req)
	}

		tc := mcontext.TraceCtxt{
			AmzReqID:         w.Header().Get(xhttp.AmzRequestID),
			RequestRecorder:  reqRecorder,
			ResponseRecorder: respRecorder,
		}

		r = r.WithContext(context.WithValue(r.Context(), mcontext.ContextTraceKey, &tc))

		reqStartTime := time.Now().UTC()
		h.ServeHTTP(respRecorder, r)
		reqEndTime := time.Now().UTC()