neoneo-go/pkg/services/metrics/prometheus.go

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package metrics
import (
"net/http"
"github.com/nspcc-dev/neo-go/pkg/config"
"github.com/prometheus/client_golang/prometheus/promhttp"
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"go.uber.org/zap"
)
// PrometheusService https://prometheus.io/docs/guides/go-application.
type PrometheusService Service
// NewPrometheusService creates a new service for gathering prometheus metrics.
func NewPrometheusService(cfg config.BasicService, log *zap.Logger) *Service {
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if log == nil {
return nil
}
addrs := cfg.Addresses
srvs := make([]*http.Server, len(addrs))
for i, addr := range addrs {
srvs[i] = &http.Server{
Addr: addr,
Handler: promhttp.Handler(), // share metrics between multiple prometheus handlers
}
}
return NewService("Prometheus", srvs, cfg, log)
}