62 lines
1.6 KiB
Go
62 lines
1.6 KiB
Go
package natsio
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import (
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"errors"
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"fmt"
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"log"
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"time"
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"github.com/nats-io/nats.go"
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)
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// Default timeout 10s
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const requestTimeout = 10 * time.Second
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// Request ...
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func (sv Server) Request(subject string, payload []byte) (*nats.Msg, error) {
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timeout := requestTimeout
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if sv.Config.RequestTimeout > 0 {
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timeout = sv.Config.RequestTimeout
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}
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msg, err := sv.instance.Request(subject, payload, timeout)
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if errors.Is(err, nats.ErrNoResponders) {
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log.Printf("[NATS SERVER]: request - no responders for subject: %s", subject)
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}
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return msg, err
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}
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// Reply ...
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func (sv Server) Reply(msg *nats.Msg, payload []byte) error {
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return sv.instance.Publish(msg.Reply, payload)
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}
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// Subscribe ...
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func (sv Server) Subscribe(subject string, cb nats.MsgHandler) (*nats.Subscription, error) {
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sub, err := sv.instance.Subscribe(subject, cb)
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if err != nil {
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msg := fmt.Sprintf("[NATS SERVER] - subscribe subject %s error: %s", subject, err.Error())
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return nil, errors.New(msg)
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}
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return sub, nil
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}
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// QueueSubscribe ...
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func (sv Server) QueueSubscribe(subject, queue string, cb nats.MsgHandler) (*nats.Subscription, error) {
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sub, err := sv.instance.QueueSubscribe(subject, queue, cb)
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if err != nil {
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msg := fmt.Sprintf("[NATS SERVER] - queue subscribe subject %s, queue %s error: %s", subject, queue, err.Error())
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return nil, errors.New(msg)
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}
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return sub, nil
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}
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// NewJSONEncodedConn ...
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func (sv Server) NewJSONEncodedConn() (*JSONEncoder, error) {
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enc, err := nats.NewEncodedConn(sv.instance, nats.JSON_ENCODER)
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if err != nil {
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log.Printf("natsio.NewJSONEncodedConn: err %v\n", err)
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return nil, err
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}
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return &JSONEncoder{encConn: enc}, nil
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}
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