How to do it...

Let's follow the following steps to use the device twin operation:

1. Store the device metadata:

var patch = new
 {
 properties = new
 {
 desired = new
 {
 deviceConfig = new
 {
 configId = Guid.NewGuid().ToString(),
 DeviceOwner = "yatish",
 latitude = "17.5122560",
 longitude = "70.7760470"

 }
 },
 reported = new
 {
 deviceConfig = new
 {
 configId = Guid.NewGuid().ToString(),
 DeviceOwner = "yatish",
 latitude = "17.5122560",
 longitude = "70.7760470"

 }
 }
 },
 tags = new
 {
 location = new
 {
 region = "US",
 plant = "Redmond43"
 }
 }

 };

 await registryManager.UpdateTwinAsync(deviceTwin.DeviceId, JsonConvert.SerializeObject(patch), deviceTwin.ETag);

1. Query the device metadata:

var query = registryManager.CreateQuery("SELECT * FROM devices WHERE deviceId = '" + deviceTwin.DeviceId + "'");

1. Report the current state of the device:

var results = await query.GetNextAsTwinAsync();