metrics_deprecated.go

//go:build deprecated_server

package mercure

import (
	"net/http"

	"github.com/dunglas/mercure/common"
	"github.com/gorilla/mux"
	"github.com/prometheus/client_golang/prometheus"
	"github.com/prometheus/client_golang/prometheus/promhttp"
)

// Register configures the Prometheus registry with all collected metrics.
//
// Deprecated: use the Caddy server module or the standalone library instead.
func (m *PrometheusMetrics) Register(r *mux.Router) {
	// Metrics about current version
	m.registry.MustRegister(common.AppVersion.NewMetricsCollector())

	// Go-specific metrics about the process (GC stats, goroutines, etc.).
	m.registry.MustRegister(prometheus.NewGoCollector())
	// Go-unrelated process metrics (memory usage, file descriptors, etc.).
	m.registry.MustRegister(prometheus.NewProcessCollector(prometheus.ProcessCollectorOpts{}))

	r.Handle(metricsPath, promhttp.HandlerFor(m.registry.(*prometheus.Registry), promhttp.HandlerOpts{})).Methods(http.MethodGet)
}