ManagedClient WithCleanSession

I’m trying to use the clean session with the managed client

var options = new ManagedMqttClientOptionsBuilder()
    .WithAutoReconnectDelay(TimeSpan.FromSeconds(5))
    .WithClientOptions(new MqttClientOptionsBuilder()
        .WithClientId(Guid.NewGuid().ToString())
        .WithTcpServer(configuracion.Servidor)
        .WithCredentials(configuracion.Username, configuracion.Password)
        .WithKeepAlivePeriod(TimeSpan.FromSeconds(60))
        .WithCleanSession(false) //sesion persistente
        .Build())
    .Build();
var mqttClient = new MqttFactory().CreateManagedMqttClient();

await mqttClient.SubscribeAsync(new TopicFilterBuilder()
    .WithTopic(configuracion.Topic)
    .WithExactlyOnceQoS()
    .Build());

await mqttClient.StartAsync(options);

I have tried to connect to 2 different HiveMQ brokers with the following error:

Error: System.NotSupportedException: The managed client does not support existing sessions.
   at MQTTnet.Extensions.ManagedClient.ManagedMqttClient.StartAsync(IManagedMqttClientOptions options)
   at MQTT_client.MQTT.ManageMQTTClient()

If I use other client, I can connect successfully using cleansesion to that HiveMQ broker.

So, is it not supported to use cleansession with managed client? or it could be done in a different way using the managed client?

I’m using the 3.0.2 MQTTnet version

[chkr1011]

No that is not supported yet but already on the feature list.

[chkr1011]

No not yet. Also will this feature come with some drawbacks because it cannot cover all use cases. But you can always use the regular MqttClient. The ManagedMqttClient is just a small extension which reconnects automatically etc. With that base client you can do everything (including reuse of existing sessions).