func()

in opentelemetry_collector/receiver/dockerstats/scraper.go [187:204]

• 16 lines of code
• 4 McCabe index (conditional complexity)

func (s *scraper) readResourceUsageStats(ctx context.Context, id string) (*types.StatsJSON, error) {
	st, err := s.docker.ContainerStats(ctx, id, false /*stream*/)
	if err != nil {
		return nil, fmt.Errorf("failed to retrieve stats: %v", err)
	}
	defer st.Body.Close()

	b, err := ioutil.ReadAll(st.Body)
	if err != nil {
		return nil, fmt.Errorf("failed to read stats: %v", err)
	}

	var stats types.StatsJSON
	if err = json.Unmarshal(b, &stats); err != nil {
		return nil, fmt.Errorf("failed to unmarshal stats JSON: %v", err)
	}
	return &stats, nil
}