public async Task <CloudToDeviceMethodResult> SendMethod(string deviceId, string command, string payload)
{
JObject cmdPayload = JObject.Parse(payload);
if (_serviceClient != null)
{
var methodInvocation = new CloudToDeviceMethod(command)
{
ResponseTimeout = TimeSpan.FromSeconds(30)
};
Twin deviceTwin = await GetDeviceTwin(deviceId);
if (!string.IsNullOrEmpty(deviceTwin.ModelId))
{
DTDLModelResolver resolver = new DTDLModelResolver(_privateModelRepoUrl, _privateModelToken, _logger);
var modelData = await resolver.ParseModelAsync(deviceTwin.ModelId);
var interfaces = modelData.Where(r => r.Value.EntityKind == DTEntityKind.Command).ToList();
//var commands = interfaces.Select(r => r.Value as DTCommandInfo).Where(x => x.Name == command).ToList();
var dtCmd = interfaces.Select(r => r.Value as DTCommandInfo).Single(x => x.Name == command);
if (cmdPayload.ContainsKey(dtCmd.Request.Name))
{
switch (dtCmd.Request.Schema.EntityKind)
{
case DTEntityKind.String:
methodInvocation.SetPayloadJson(new string(cmdPayload[dtCmd.Request.Name].ToString()));
break;
case DTEntityKind.Integer:
if (cmdPayload[dtCmd.Request.Name].Type == JTokenType.String)
{
var value = cmdPayload[dtCmd.Request.Name].ToString();
// convert to integer
Regex rx = new Regex(@"^[0-9]+$");
if (!rx.IsMatch(value))
{
var result = new CloudToDeviceMethodResult()
{
Status = 400,
};
return(result);
}
else
{
methodInvocation.SetPayloadJson(Int32.Parse(value).ToString());
}
}
break;
case DTEntityKind.Float:
case DTEntityKind.Double:
break;
}
//cmdPayload.
}
}
try
{
var response = await _serviceClient.InvokeDeviceMethodAsync(deviceId, methodInvocation);
Console.WriteLine("Response status: {0}, payload:", response.Status);
Console.WriteLine(response.GetPayloadAsJson());
return(response);
}
catch (Exception e)
{
_logger.LogError($"Exception in GetIoTHubDevice() : {e.Message}");
}
}
return(null);
}