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nats.go
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/
nats.go
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package dnslogging
import (
retry "github.com/avast/retry-go"
nats "github.com/nats-io/nats.go"
)
type NatsClient struct {
conn *nats.Conn
subject string
}
// NewNatsClient returns a connected Nats Client
func NewNatsClient(natsURL string) (_ *NatsClient, err error) {
nc := NatsClient{}
// Initial Connection loop
err = retry.Do(
func() error {
nc.conn, err = nats.Connect(natsURL)
return err
},
retry.DelayType(retry.BackOffDelay),
retry.OnRetry(func(n uint, err error) {
log.Errorf("nats: (attempt %v) %v", n+1, err)
}),
)
if err != nil {
return nil, err
}
log.Info("nats connection initialized...")
return &nc, nil
}
func (nc *NatsClient) Publish(log *Log) error {
lb, err := log.pack()
if err != nil {
return err
}
err = nc.conn.Publish(nc.subject, lb)
if err != nil {
return err
}
return nil
}