https://github.com/amenzhinsky/mqtt

Micro MQTT library for Golang
https://github.com/amenzhinsky/mqtt

Last synced: 2 days ago
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Micro MQTT library for Golang

• Host: GitHub
• URL: https://github.com/amenzhinsky/mqtt
• Owner: amenzhinsky
• Created: 2019-08-23T11:07:29.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2019-12-10T07:17:49.000Z (almost 5 years ago)
• Last Synced: 2024-06-20T13:49:26.630Z (5 months ago)
• Language: Go
• Size: 53.7 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# mqtt

Micro [MQTT 3.1.1](http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html) client for [Golang](https://golang.org/).

It provides low-level API and doesn't support async usage and advanced features such as reconnects, fallback addresses and persistent storage.

## Usage

```go

conn, err := net.Dial("tcp", "127.0.0.1:8883")

if err != nil {

	return err

}

client := mqtt.New(conn, mqtt.WithMessagesHandler(func(pk *packet.Publish) {

	switch {

	case mqtt.Match("/dev/cmd/speed", pk.Topic):

		speed(binary.BigEndian.Uint32(pk.Payload))

	case mqtt.Match("/dev/cmd/+/play", pk.Topic):

		play(strings.Split(pk.Topic, "/")[3], pk.Payload)

	}

}))

defer client.Close()

if _, err := client.Connect(context.Background(),

	packet.WithConnectCleanSession(true),

	packet.WithConnectWill("/dev/online", []byte{0}, packet.QoS1, true),

); err != nil {

	return err

}

if _, err := client.Subscribe(context.Background(),

	packet.WithSubscribeTopic("/dev/cmd/#", packet.QoS1),

); err != nil {

	return err

}

if err := client.Publish(context.Background(),

	"/dev/online",

	packet.WithPublishQoS(packet.QoS1),

	packet.WithPublishPayload([]byte{1}),

); err != nil {

	return err

}

if err := client.Disconnect(context.Background()); err != nil {

	return err

}

```