Azure IoT Central: gateway and downstream device

Hello everybody,

I have a question regarding the implementation of a Gateway device in Azure IoT Central and some Downstream devices.

Basically, I am running a client able to connect and upload data to Azure IoT Central using https://github.com/Azure/azure-sdk-for-c-arduino on an ESP32.

The such device behaves as a gateway: it collects data from several "end-nodes" (not connected to the internet), and such data are compacted in telemetry payloads and sent to Azure IoT Central.

I followed the tutorial https://learn.microsoft.com/en-us/azure/iot-central/core/tutorial-define-gateway-device-type?tabs=javascript, and I have been able to define the gateway and the downstream devices. However, I only know how to connect the gateway device to the ESP32 using its IDs by modifying the code provided in the git repository.

How can I add the information regarding the downstream devices?

Thank your for your support,

Andrea