Publish device twin Message

To publish device twin messages:

1. Connect the devices and subscribe to the device twin subscription topics.

   • $iothub/twin/res/#
   • $iothub/twin/PATCH/properties/desired/#

2. Update the device twin desired properties using the Update Device Twin API.

3. The device will receive notifications in the device twin response topic
   $iothub/twin/PATCH/properties/desired/?$version={version}

   Note

   When a device is offline, the device can use the topic ‘$iothub/twin/GET/?$rid={request id}’ to get the current shadow state.

4. The device should update the reported properties using the topic
   $iothub/twin/PATCH/properties/reported/?$rid={request id}

5. Applications can monitor the reported properties set by devices using the Get device twin details.