def loop(self):
"""Listens for MQTT messages
"""
if self._mqtt is None:
raise IoTError("You are not connected to IoT Central")
self._mqtt.loop()
def disconnect(self):
"""Disconnects from the MQTT broker
"""
if self._mqtt is None:
raise IoTError("You are not connected to IoT Central")
self._mqtt.disconnect()
def send_device_to_cloud_message(self, message, system_properties=None):
"""Sends a device to cloud message to the IoT Hub
"""
if self._mqtt is None:
raise IoTError("You are not connected to IoT Central")
self._mqtt.send_device_to_cloud_message(message, system_properties)
def direct_method_called(self, method_name: str, data) -> IoTResponse:
"""Called when a direct method is invoked
"""
if self.on_command_executed is not None:
# pylint: disable=E1102
return self.on_command_executed(method_name, data)
raise IoTError("on_command_executed not set")
def send_property(self, property_name, data):
"""Updates the value of a writable property
"""
if self._mqtt is None:
raise IoTError("You are not connected to IoT Central")
patch_json = {property_name: data}
patch = json.dumps(patch_json)
self._mqtt.send_twin_patch(patch)
def send_telemetry(self, data):
"""Sends telemetry to the IoT Central app
"""
if self._mqtt is None:
raise IoTError("You are not connected to IoT Central")
if isinstance(data, dict):
data = json.dumps(data)
self._mqtt.send_device_to_cloud_message(data)
def update_twin(self, patch):
"""Updates the reported properties in the devices device twin
"""
if self._mqtt is None:
raise IoTError("You are not connected to IoT Central")
if isinstance(patch, dict):
patch = json.dumps(patch)
self._mqtt.send_twin_patch(patch)