vibe-mqtt 0.2.0-beta.3

vibe-mqtt

MQTT broker client library written completely in D.

MQTT protocol version supported: 3.1.1

Depends on: vibe.d

Tested on:

• RabbitMQ with MQTT plugin enabled - Doesn't support QoS2
• Mosquitto

Supported MQTT 3.1.1 features:

• [x] QoS0, QoS1 and QoS2 messages handling
• [x] Authentication
• [x] Session state storage (currently in memory only - #20)
• [x] Sending retain messages
• [x] Async API (publish blocks if send queue is full)
• [x] Data agnostic
• [x] Message ordering
• [x] KeepAlive mechanism support (PingReq/PingResp) (#11)
• [x] Auto reconnect to broker (#15)
• [ ] On subscribe topics validation (#17)
• [ ] Last Will and Testament (LWT) (#21)
• [ ] Delivery retry (#14)
• [ ] TLS/SSL (#16)

Pull Requests are welcome, don't be shy ;)

Usage

Example code can be found in the examples directory.

Publisher

Simple publisher which connects to the MQTT broker and periodically sends a message. Implicitly it connects to 127.0.0.1:1883

auto settings = Settings();
settings.clientId = "test publisher";

auto mqtt = new MqttClient(settings);
mqtt.connect();

auto publisher = runTask(() {
        while (mqtt.connected) {
            mqtt.publish("chat", "I'm still here!!!");
            sleep(2.seconds());
        }
    });

Subscriber

Simple subscriber which connects to the MQTT broker, subscribes to the topic and outputs each received message. Implicitly it connects to 127.0.0.1:1883

class Subscriber : MqttClient {
    this(Settings settings) {
        super(settings);
    }

    override void onPublish(Publish packet) {
        super.onPublish(packet);
        writeln("chat: ", cast(string)packet.payload);
    }

    override void onConnAck(ConnAck packet) {
        super.onConnAck(packet);
        this.subscribe(["chat"]);
    }
}

auto settings = Settings();
settings.clientId = "test subscriber";

auto mqtt = new Subscriber(settings);
mqtt.connect();