private static async Task DesiredPropertyUpdateCallback(TwinCollection desiredProperties, object userContext)
{
try
{
var deviceClient = (DeviceClient)userContext;
ConsoleWriteLine();
ConsoleWriteLine($"Received twin update, including {desiredProperties.Count} desired properties:", ConsoleColor.Green);
ConsoleWriteLine(desiredProperties.ToJson(Formatting.Indented), ConsoleColor.Green);
var reportedProperties = new TwinCollection();
var propertyNames = new List <string>();
// enumerate through the desired properties
var enumerator = desiredProperties.GetEnumerator();
while (enumerator.MoveNext())
{
var pair = (KeyValuePair <string, object>)enumerator.Current;
var propertyName = pair.Key;
// copy desired property to reported properties
reportedProperties[propertyName] = pair.Value;
propertyNames.Add(propertyName);
}
reportedProperties["lastUpdateInfo"] =
$"Last desired property update @ {DateTime.UtcNow} involved these properties: {string.Join(", ", propertyNames)}";
ConsoleWriteLine();
ConsoleWriteLine($"Will change reported properties accordingly...", ConsoleColor.Green);
await deviceClient.UpdateReportedPropertiesAsync(reportedProperties);
ConsoleWriteLine($"Successfully changed reported properties", ConsoleColor.Green);
await GetCurrentTwin(deviceClient);
}
catch (Exception ex)
{
ConsoleWriteLine($"* ERROR * {ex.Message}", ConsoleColor.Red);
}
}