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==Direct methods configuration==
Direct method is a term that describes process where some action is called from the Azure IoT Hub to a specific device identity. The receiving device executes certain actions and returns an answer back to the Azure portal. Let's see how it works on our devices.
By default, all configurations instances will have this option disabled. To enabled it, you should navigate on router WebUI to Services -> Cloud Solutions -> Azure IoT Hub and press edit button on specific instance. There, you will be able to see "Enable Direct Methods" button, which you need to press.
[[File:Azure RutOSconf 19.png|border|class=tlt-border]]
For testing and demonstration purposes we will use Azure IoT explorer application. The Azure IoT explorer is a graphical tool for interacting with devices connected to your IoT hub. If you are not familiar with it, you can follow this Microsoft installation and usage guide https://learn.microsoft.com/en-us/azure/iot/howto-use-iot-explorer
After enabling the Direct Method feature manually, go to Azure IoT Explorer, select proper device indentity and head to direct methods tab. All our RUT devices supports api_call direct method, which exposes the API interface to be used from the Azure side. In this example, we will call simple get request to retrieve I/O status of the device. Full documentation of Teltonika devices API can be found here https://developers.teltonika-networks.com/
In the Azure IoT explorer direct method tab you can see Payload field. It expects to have JSON formatted information.
[[File:Azure RutOSconf 20.png|border|class=tlt-border]]
API call expects at least two parameters. The first one is called "method". This needs to have an integer value between zero and three, which corresponds to API method type - either "get", "out", "post", "delete". The second one is endpoint which expects a string value of the API endpoint. In this case we will call the /io/status endpoint.
[[File:Azure RutOSconf 22.1.png|border|class=tlt-border]]
After pressing "Invoke Method" button, we can a response from the device.
[[File:Azure RutOSconf 21.png|border|class=tlt-border]]
==Checking if Data reaches Azure IoT Hub==
==Checking if Data reaches Azure IoT Hub==
