Create DigitalTwin containing Component

Question

I am currently writing my final thesis for a technical high school and chose to use Azure Digital Twins as a way to represent machines (with nested sensors). I want to use components inside my machines for these sensors. Now my problem is, that I can not figure out how to create a machine (digital-twin) with a nested sensor(digital-twin as a component). It would be of great help if you could provide a .net core code sample or a command for the "digital-twins-samples" client that shows a way to create this nesting.

//Machine
{
    "@id": "dtmi:mysample:DigitalTwins:MoldMachine;1",
    "@type": "Interface",
    "displayName": "MoldMachine",
    "@context": "dtmi:dtdl:context;2",
    "extends": "dtmi:mysample:DigitalTwins:Machine;1",
    "contents": [
        {
            "@type": "Component",
            "name": "TemperatureSensor",
            "schema": "dtmi:virtualfactory:DigitalTwins:TemperatureSensor;1"
        }
    ]
}
//Sensor
{
    "@context": "dtmi:dtdl:context;2",
    "@type": "Interface",
    "@id": "dtmi:mysample:DigitalTwins:TemperatureSensor;1",
    "contents": [
        {
            "@type": ["Telemetry", "Temperature"],
            "schema": "double",
            "unit": "degreeCelsius",
            "name":"TemperatureTelemetry"
        },
        {
            "@type": "Property",
            "schema": "double",
            "name":"TemperatureProperty"
        }
    ]
}

Answer 1

This worked for me:

var sensor = new Dictionary<string, object>{
     {"$metadata", new Dictionary<string,object>{}},
     {"TemperatureProperty", 300}
};

BasicDigitalTwin machine = new BasicDigitalTwin();
machine.Id = "Machine_-1";
machine.Metadata.ModelId = "dtmi:mysample:DigitalTwins:MoldMachine;2";
machine.CustomProperties.Add("TemperatureSensor", sensor);

await dtClient.CreateDigitalTwinAsync(machine.Id, JsonSerializer.Serialize(machine));