metrics

type Storage struct {
	Heartbeat           prometheus.Gauge
	ResponseTime        prometheus.Histogram
	APIResponseTime     *prometheus.HistogramVec
	DBQueryTime         *prometheus.HistogramVec
	Notifications       *prometheus.CounterVec
	HTTPRequestDuration *prometheus.HistogramVec
	SchedulesCounter    *prometheus.CounterVec
	DBQueryErrorCounter *prometheus.CounterVec
}