4_OnboardTask and Azure Direct Method.md

Example 4 - Onboard Task and Azure Direct Method

In the example below, we use the Azure direct method to send a parameter to OnboardTask.

Add new IoT Device to IoT Explorer:

Login

Create direct method parameter

Debug OnboardTask

Code:

    //..... .   .
    private async void HttpRestServer_ClientRequestEvent(object sender, HttpRestServerService.ClientRequestEventArgs e)
    {
        IO.SimpleHttpServer.Result res = new IO.SimpleHttpServer.Result();

        DirectMethodResponse response = new DirectMethodResponse();

        try
        {
            if (e.RequestMethod == RequestMethodType.GET)
            {
                //Not used in this example!
                res = await RestServer.ServerResponse(HTTPStatusCodes.Not_Found, e.OStream, null);
            }
            else if (e.RequestMethod == RequestMethodType.POST)
            {
                var newparameters = JsonConvert.DeserializeObject<Parameters>(e.HttpContent);

                response.Success = true;
                response.Message = "Saved new parameters.";

                res = await RestServer.ServerResponse(HTTPStatusCodes.OK, e.OStream, JsonConvert.SerializeObject(response));

                //Parameter management code ....
            }
            else
            {
                res = await RestServer.ServerResponse(HTTPStatusCodes.Not_Found, e.OStream, null);
            }
        }
        catch (Exception ex)
        {
            EventLogging.AddLogMessage(MessageType.ExceptionError, this.GetType().Name + " - " + ServiceDisplayName + " - " + "Http REST server exception error! Error: " + ex.Message);
        }
    }

    //My classes
    private class DirectMethodResponse
    {
        public bool Success { get; set; }
        public string Message { get; set; }
    }

    private class Parameters
    {
        public string Light { get; set; }
        public double SetTemperature { get; set; }
    }