MQTTClient.onDisconnect()
Overview
Used to set or replace the disconnect handler for an MQTTClient object.
Added in version 2.1.13
Format
var mqttClient = new MQTTClient(options);
//...
mqttClient.onDisconnect = disconnectHandler;
| Value | Description | Type | Required | Notes |
|---|---|---|---|---|
| disconnectHandler | A callback function that is called when the session is disconnected. | Function | Optional | When called, the first parameter is a Disconnect object as described below. |
Disconnect object properties
| Value | Description | Type | Notes |
|---|---|---|---|
| reason | A description for the disconnect reason. | String |
Example
Copy
/* Only sets the onDisconnect handler after a successful connection.
*/
mqttClient = new MQTTClient({
broker: "mqtt://mymqtt.example.com"
});
mqttClient.connect(function() {
mqttClient.onDisconnect = function(event) {
Logger.info("lost MQTT connection: " + event.reason);
// try to reconnect after 5 second timeout
setTimeout(function() { mqttClient.connect(); }, 5000);
}
});