rumqttc-async-std 0.5.0

An efficient and robust mqtt client for your connected devices
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use rumqttc::{self, Client, LastWill, MqttOptions, QoS};
use std::thread;
use std::time::Duration;

fn main() {
    pretty_env_logger::init();

    let mut mqttoptions = MqttOptions::new("test-1", "localhost", 1883);
    let will = LastWill::new("hello/world", "good bye", QoS::AtMostOnce, false);
    mqttoptions.set_keep_alive(5).set_last_will(will);

    let (client, mut connection) = Client::new(mqttoptions, 10);
    thread::spawn(move || publish(client));

    for (i, notification) in connection.iter().enumerate() {
        println!("Notification = {:?}", notification);

        if i == 10 {
            break;
        }
    }

    println!("Done with the stream!!");
}

fn publish(mut client: Client) {
    client.subscribe("hello/+/world", QoS::AtMostOnce).unwrap();
    for i in 0..10 {
        let payload = vec![1; i as usize];
        let topic = format!("hello/{}/world", i);
        let qos = QoS::AtLeastOnce;

        client.publish(topic, qos, true, payload).unwrap();
    }

    thread::sleep(Duration::from_secs(1));
}