#include <QtCore>
#include <QtMqtt>

int main(int argc, char** argv)
{
    QCoreApplication app(argc, argv);
    
    QMqttClient client;
    client.setPort(3671);
    client.setHostname(QStringLiteral("127.0.0.1"));

    QObject::connect(&client, &QMqttClient::stateChanged, [&](QMqttClient::ClientState state) {
        qDebug() << "State:" << state;
    });
    QObject::connect(&client, &QMqttClient::errorChanged, [&](QMqttClient::ClientError error) {
        qDebug() << "Error:" << error;
    });

    client.connectToHost();
    //client.connectToHost();

    return app.exec();
}