prometheus

Documentation

Index

• Constants
• type Handler
  • func NewHandler(h herodot.Writer, version string) *Handler
  • func (h *Handler) Metrics(rw http.ResponseWriter, r *http.Request, _ httprouter.Params)
  • func (h *Handler) SetRoutes(r *httprouter.Router)
• type Metrics
  • func NewMetrics(app, version, hash, date string) *Metrics
• type MetricsManager
  • func NewMetricsManager(app, version, hash, buildTime string) *MetricsManager
  • func (pmm *MetricsManager) RegisterRouter(router *httprouter.Router)
  • func (pmm *MetricsManager) ServeHTTP(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc)

Constants

const (
	MetricsPrometheusPath = "/metrics/prometheus"
)

Types

type Handler

type Handler struct {
	H             herodot.Writer
	VersionString string
}

Handler handles HTTP requests to health and version endpoints.

func NewHandler

func NewHandler(
	h herodot.Writer,
	version string,
) *Handler

NewHandler instantiates a handler.

func (*Handler) Metrics

func (h *Handler) Metrics(rw http.ResponseWriter, r *http.Request, _ httprouter.Params)

Metrics outputs prometheus metrics

swagger:route GET /metrics/prometheus metadata prometheus

Get snapshot metrics from the service. If you're using k8s, you can then add annotations to your deployment like so:

``` metadata:

annotations:
  prometheus.io/port: "4434"
    prometheus.io/path: "/metrics/prometheus"

```

Produces:
- plain/text

Responses:
  200: emptyResponse

func (*Handler) SetRoutes

func (h *Handler) SetRoutes(r *httprouter.Router)

SetRoutes registers this handler's routes.

type Metrics

type Metrics struct {
	ResponseTime *prometheus.HistogramVec
}

Metrics prototypes

func NewMetrics

func NewMetrics(app, version, hash, date string) *Metrics

Method for creation new custom Prometheus metrics

type MetricsManager

type MetricsManager struct {
	// contains filtered or unexported fields
}

func NewMetricsManager

func NewMetricsManager(app, version, hash, buildTime string) *MetricsManager

func (*MetricsManager) RegisterRouter

func (pmm *MetricsManager) RegisterRouter(router *httprouter.Router)

func (*MetricsManager) ServeHTTP

func (pmm *MetricsManager) ServeHTTP(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc)

Main middleware method to collect metrics for Prometheus.