mqtt-switch-status-announce.js

let CONFIG = {
  switchId: 0,
  interval: 40000,
  MQTTPublishTopic: "/status/switch:",
};

let SHELLY_ID = undefined;

Shelly.call("Mqtt.GetConfig", "", function (res, err_code, err_msg, ud) {
  SHELLY_ID = res["topic_prefix"];
});

let notifyTimer = Timer.set(CONFIG.interval, true, function () {
  Shelly.call(
    "Switch.GetStatus",
    {
      id: CONFIG.switchId,
    },
    function (res, err_code, err_msg, ud) {
      if (typeof SHELLY_ID === "undefined") {
        return;
      }
      if (typeof res !== "undefined" || res !== null) {
        MQTT.publish(
          SHELLY_ID + CONFIG.MQTTPublishTopic + JSON.stringify(CONFIG.switchId),
          JSON.stringify(res),
          0,
          false
        );
      }
    }
  );
});