Monitor IoT Hub Built in Event Endpoint - microsoft/vscode-azure-iot-toolkit GitHub Wiki
Command: Azure IoT Hub: Start Monitoring Built-in Event Endpoint and Azure IoT Hub: Stop Monitoring Built-in Event Endpoint
Right-click your device and select Start Monitoring Built-in Event Endpoint, the monitored messages will be shown in OUTPUT > Azure IoT Hub Toolkit view.
To stop monitoring, right-click the OUTPUT view and select Stop Monitoring Built-in Event Endpoint.
Use below setting to show verbose info when monitoring messages:
{
"azure-iot-toolkit.showVerboseMessage": true
}