static async Task VirtualLedClientRoutine()
{
// create a DeviceHiveConnectionInfo object
// insert your assigned DeviceHive service URL, username and password here
var connectionInfo = new DeviceHiveConnectionInfo("http://localhost/DeviceHive.API", "dhadmin", "dhadmin_#911");
// create a DeviceHiveClient object used to communicate with the DeviceHive service
var client = new DeviceHiveClient(connectionInfo);
// get information about the VirtualLed device
var deviceGuid = "E50D6085-2ABA-48E9-B1C3-73C673E414BE";
var device = await client.GetDevice(deviceGuid);
if (device == null)
{
Console.WriteLine("VirtualLed device does not exist on the server, please run VirtualLed device first!");
Console.ReadKey();
return;
}
Console.WriteLine("Found VirtualLed device with status: " + device.Status);
// get information about current LED state
var equipmentState = await client.GetEquipmentState(device.Id);
var ledEquipmentState = equipmentState.FirstOrDefault(e => e.Id == LED_CODE);
if (ledEquipmentState != null)
{
Console.WriteLine("Current state of the VirtualLed: " + ledEquipmentState.GetParameter<int>("state"));
}
// subscribe to device notifications
var subscription = await client.AddNotificationSubscription(new[] { deviceGuid }, null, HandleNotification);
// read user input to send corresponding commands to the VirtualLed device
Console.WriteLine("\nPlease enter a desired state of the led (either 0 or 1) or ESC to exit\n");
while (true)
{
var key = Console.ReadKey(true);
if (key.Key == ConsoleKey.Escape)
break;
if (key.KeyChar == '0' || key.KeyChar == '1')
{
// send a command to the VirtualLed device to switch the LED state
Console.WriteLine(string.Format("Sending UpdateLedState command with state: {0}", key.KeyChar));
var command = new Command("UpdateLedState");
command.Parameter("equipment", LED_CODE);
command.Parameter("state", key.KeyChar);
await client.SendCommand(device.Id, command);
}
}
// unsubscribe from notifications and dispose the client
await client.RemoveSubscription(subscription);
client.Dispose();
}
public async Task<ActionResult> Index()
{
// if DeviceHive access key is uavailable - offer OAuth authentication
if (AccessKey == null)
return View();
// otherwise, read and display a list of DeviceHive devices
try
{
var connectionInfo = new DeviceHiveConnectionInfo(DeviceHiveUrl, AccessKey);
var client = new DeviceHiveClient(connectionInfo);
var devices = await client.GetDevicesAsync();
return View("Devices", devices);
}
catch (DeviceHiveUnauthorizedException)
{
// credentials are invalid or expired
return View();
}
}
