parseresponse.go

func parseResponse(res *http.Response, unmarshalStruct interface{}) error {
	body, err := ioutil.ReadAll(res.Body)
	if err != nil {
		return err
	}
	res.Body.Close()

	res.Body = ioutil.NopCloser(bytes.NewBuffer(body))
	return json.Unmarshal(body, unmarshalStruct)
}