39 lines
878 B
Go
39 lines
878 B
Go
package natsio
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import (
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"errors"
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"fmt"
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"github.com/nats-io/nats.go"
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)
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// GetConsumerInfo ...
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func (js JetStream) GetConsumerInfo(stream, name string) (*nats.ConsumerInfo, error) {
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return js.instance.ConsumerInfo(stream, name)
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}
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// AddConsumer ...
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func (js JetStream) AddConsumer(stream, subject, name string) error {
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// Get consumer first, return if existed
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consumer, err := js.GetConsumerInfo(stream, name)
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if consumer != nil {
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return nil
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}
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// Generate channel name
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channel := combineStreamAndSubjectName(stream, subject)
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// Add
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_, err = js.instance.AddConsumer(stream, &nats.ConsumerConfig{
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Durable: name,
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AckPolicy: nats.AckExplicitPolicy,
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FilterSubject: channel,
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})
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if err != nil {
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msg := fmt.Sprintf("[NATS JETSTREAM] - add consumer %s for stream #%s error: %s", name, stream, err.Error())
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return errors.New(msg)
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}
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return nil
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}
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