Курнат Андрей
39 lines
960 B
Go
39 lines
960 B
Go
package service
|
|
|
|
import (
|
|
"context"
|
|
|
|
"github.com/qsfera/server/services/invitations/pkg/invitations"
|
|
"github.com/qsfera/server/services/invitations/pkg/metrics"
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
)
|
|
|
|
// NewInstrument returns a service that instruments metrics.
|
|
func NewInstrument(next Service, metrics *metrics.Metrics) Service {
|
|
return instrument{
|
|
next: next,
|
|
metrics: metrics,
|
|
}
|
|
}
|
|
|
|
type instrument struct {
|
|
next Service
|
|
metrics *metrics.Metrics
|
|
}
|
|
|
|
// Invite implements the Service interface.
|
|
func (i instrument) Invite(ctx context.Context, invitation *invitations.Invitation) (*invitations.Invitation, error) {
|
|
timer := prometheus.NewTimer(prometheus.ObserverFunc(func(v float64) {
|
|
us := v * 1000000
|
|
|
|
i.metrics.Latency.WithLabelValues().Observe(us)
|
|
i.metrics.Duration.WithLabelValues().Observe(v)
|
|
}))
|
|
|
|
defer timer.ObserveDuration()
|
|
|
|
i.metrics.Counter.WithLabelValues().Inc()
|
|
|
|
return i.next.Invite(ctx, invitation)
|
|
}
|