Digital Twin is not updating [SOLVED]

Question

Dear all,
I have tried this documentation URL: https://learn.microsoft.com/en-us/azure/digital-twins/how-to-ingest-iot-hub-data and I still have not able to update my Digital Twin telemetry instance knowing in IoT Hub was successful.

Please kindly for the help

Answer 1

Thank You in advance @Matthijs van der Veer , yes it was. I realized the issue was came from the Function App in the context of the C# code.
It failed to read the message body to obtain my telemetry, because it was encoded.
To decode, we can use:

var bodyJson = Encoding.ASCII.GetString((byte[])deviceMessage["body"]);
JObject body = (JObject)JsonConvert.DeserializeObject(bodyJson);

Another thing is we need to instantiate BasicDigitalTwin first before updating our Digital Twin as follows (for example in my case):

var cred = new DefaultAzureCredential();
var client = new DigitalTwinsClient(new Uri(adtInstanceUrl), cred);

string twinId = "<TWIN_ID>";
var initData = new BasicDigitalTwin
{
Id = twinId,
Metadata = { ModelId = "<MODEL_ID>" },
Contents =
{
{ "Temperature", 0.0},
{ "Humidity", 0.0},
{ "Light", 0.0}
}
};