34 lines
758 B
Go
34 lines
758 B
Go
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package service
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import (
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"fmt"
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mqtt "github.com/eclipse/paho.mqtt.golang"
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"log"
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)
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func StopService(name string, client mqtt.Client, topics ...string) {
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log.Printf("Stop %s service", name)
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token := client.Unsubscribe(topics...)
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token.Wait()
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if token.Error() != nil {
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log.Printf("unable to unsubscribe service: %v", token.Error())
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}
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client.Disconnect(50)
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}
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func RegisterCallback(client mqtt.Client, topic string, callback mqtt.MessageHandler) error {
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log.Printf("Register callback on topic %v", topic)
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token := client.Subscribe(topic, 0, callback)
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token.Wait()
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if token.Error() != nil {
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return fmt.Errorf("unable to register callback on topic %s: %v", topic, token.Error())
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}
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return nil
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}
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type Part interface {
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Start() error
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Stop()
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}
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