return d, err
	}
	defer closeRespFn(resp.Body)
	if resp.StatusCode != http.StatusOK {
		return d, fmt.Errorf("unexpected error returned by %s : status(%s)", u, resp.Status)
	}
	dec := json.NewDecoder(resp.Body)
	if err = dec.Decode(&d); err != nil {
		return d, err
	}
	return d, nil