func getFromMetadata()

in dp_check/dp_check.go [958:982]

• 25 lines of code
• 5 McCabe index (conditional complexity)

func getFromMetadata(timeout time.Duration, urlStr string) ([]byte, error) {
	parsedURL, err := url.Parse(urlStr)
	if err != nil {
		return nil, err
	}
	client := &http.Client{Timeout: timeout}
	req := &http.Request{
		Method: http.MethodGet,
		URL:    parsedURL,
		Header: http.Header{"Metadata-Flavor": {"Google"}},
	}
	resp, err := client.Do(req)
	if err != nil {
		return nil, fmt.Errorf("failed communicating with metadata server: %v", err)
	}
	defer resp.Body.Close()
	if resp.StatusCode != http.StatusOK {
		return nil, fmt.Errorf("metadata server returned resp with non-OK: %v", resp)
	}
	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return nil, fmt.Errorf("failed reading from metadata server: %v", err)
	}
	return body, nil
}