if stats == nil {
		return map[string]int{}
	}

	stats.RLock()
	defer stats.RUnlock()

	apiStats := make(map[string]int, len(stats.apiStats))
	for k, v := range stats.apiStats {
		if toLower {
			k = strings.ToLower(k)
		}
		apiStats[k] = v
	}
	return apiStats
}

// HTTPStats holds statistics information about
// HTTP requests made by all clients
type HTTPStats struct {

	for name, value := range httpStats.CurrentS3Requests.APIStats {
		m.Set(apiRequestsInFlightTotal, float64(value), "name", name, "type", "s3")
	}
	for name, value := range httpStats.TotalS3Requests.APIStats {
		m.Set(apiRequestsTotal, float64(value), "name", name, "type", "s3")
	}
	for name, value := range httpStats.TotalS3Errors.APIStats {
		m.Set(apiRequestsErrorsTotal, float64(value), "name", name, "type", "s3")
	}

		ch <- prometheus.MustNewConstMetric(
			prometheus.NewDesc(
				prometheus.BuildFQName(s3Namespace, "errors", "total"),
				"Total number of s3 errors in current MinIO server instance",
				[]string{"api"}, nil),
			prometheus.CounterValue,
			float64(value),
			api,
		)
	}

	for api, value := range httpStats.TotalS3Canceled.APIStats {

			httpStats := globalHTTPStats.toServerHTTPStats(true)
			metrics = make([]MetricV2, 0, 3+
				len(httpStats.CurrentS3Requests.APIStats)+
				len(httpStats.TotalS3Requests.APIStats)+
				len(httpStats.TotalS3Errors.APIStats)+
				len(httpStats.TotalS35xxErrors.APIStats)+
				len(httpStats.TotalS34xxErrors.APIStats))
			metrics = append(metrics, MetricV2{
				Description: getS3RejectedAuthRequestsTotalMD(),

	s3OutputBytes        uint64
}

// ServerHTTPAPIStats holds total number of HTTP operations from/to the server,
// including the average duration the call was spent.
type ServerHTTPAPIStats struct {
	APIStats map[string]int `json:"apiStats"`
}

// ServerHTTPStats holds all type of http operations performed to/from the server
// including their average execution time.
type ServerHTTPStats struct {