metrics

type CounterOpts struct {
	Name   string
	Help   string
	Labels []string
}

type GaugeOpts struct {
	Name   string
	Help   string
	Labels []string
}

type HistogramOpts struct {
	Name    string
	Help    string
	Labels  []string
	Buckets []float64
}

type NewRegistry func(opts Options) Registry

type Options struct {
	FlushInterval time.Duration
}

type PrometheusExporter struct {
	FlushInterval time.Duration
	// contains filtered or unexported fields
}

type Registry interface {
	CreateGauge(opts GaugeOpts) error
	CreateCounter(opts CounterOpts) error
	CreateSummary(opts SummaryOpts) error
	CreateHistogram(opts HistogramOpts) error

	GaugeSet(name string, val float64, labels map[string]string) error
	CounterAdd(name string, val float64, labels map[string]string) error
	SummaryObserve(name string, val float64, Labels map[string]string) error
	HistogramObserve(name string, val float64, labels map[string]string) error
}

type SummaryOpts struct {
	Name       string
	Help       string
	Labels     []string
	Objectives map[float64]float64
}