public async Task <bool> connectAsync()
{
if (string.IsNullOrEmpty(_appConfigService.AssignedEndPoint))
{
await ProvisionAsync();
}
var deviceId = _deviceInfoService.GetDeviceId();
var symetricKey = IoTHelpers.GenerateSymmetricKey(deviceId, _appConfigService.DpsSymetricKey);
var sasToken = IoTHelpers.GenerateSasToken(_appConfigService.AssignedEndPoint, symetricKey, null);
_deviceClient = DeviceClient.Create(_appConfigService.AssignedEndPoint,
new DeviceAuthenticationWithToken(deviceId, sasToken),
TransportType.Mqtt_WebSocket_Only);
_deviceClient.SetConnectionStatusChangesHandler(ConnectionStatusChangesHandler);
await _deviceClient.OpenAsync();
return(true);
}
private async Task <bool> ProvisionAsync()
{
var dpsGlobalEndpoint = _appConfigService.DpsGlobalEndpoint;
var dpsIdScope = _appConfigService.DpsIdScope;
var deviceId = _deviceInfoService.GetDeviceId();
var dpsSymetricKey = IoTHelpers.GenerateSymmetricKey(deviceId, _appConfigService.DpsSymetricKey);
using (var security = new SecurityProviderSymmetricKey(deviceId, dpsSymetricKey, dpsSymetricKey))
{
using (var transport = new ProvisioningTransportHandlerHttp())
{
var provisioningClient = ProvisioningDeviceClient.Create(dpsGlobalEndpoint, dpsIdScope, security, transport);
var regResult = await provisioningClient.RegisterAsync();
if (regResult.Status == ProvisioningRegistrationStatusType.Assigned)
{
_appConfigService.AssignedEndPoint = regResult.AssignedHub;
}
return(true);
}
}
}
