package natsio import ( "encoding/json" "errors" "fmt" "github.com/nats-io/nats.go" ) // Publish ... func Publish(stream, subject string, data interface{}) error { channel := combineStreamAndSubjectName(stream, subject) b, _ := json.Marshal(data) _, err := natsJS.PublishAsync(channel, b) if err != nil { msg := fmt.Sprintf("publish message to subject %s error: %s", channel, err.Error()) return errors.New(msg) } return nil } // Subscribe ... func Subscribe(stream, subject string, cb nats.MsgHandler) (*nats.Subscription, error) { channel := combineStreamAndSubjectName(stream, subject) sub, err := natsJS.Subscribe(channel, cb) if err != nil { msg := fmt.Sprintf("subscribe subject %s error: %s", channel, err.Error()) return nil, errors.New(msg) } return sub, nil }