public IHttpActionResult NewMessage(DevicePowerUsage message)
{
var context = GlobalHost.ConnectionManager.GetHubContext <MyHub>();
context.Clients.All.deviceUpdate(message);
return(Ok());
}
static async Task Listen(string partitionId)
{
Console.WriteLine("Listening to partition " + partitionId);
// receive all events after UtcNow (replay events)
var receiver = await _eventHubClient.GetDefaultConsumerGroup().CreateReceiverAsync(partitionId, DateTime.UtcNow);
while (true)
{
// wait for a event to receive
var eventData = await receiver.ReceiveAsync();
if (eventData == null)
{
continue;
}
// read event data
var json = Encoding.ASCII.GetString(eventData.GetBytes());
var powerUsage = JsonConvert.DeserializeObject <PowerUsage>(json);
var deviceId = eventData.SystemProperties["iothub-connection-device-id"].ToString();
Console.WriteLine("Event received: " + json);
// post to signalr (notify web clients)
var signalrRequest = new DevicePowerUsage
{
Id = Guid.Parse(deviceId),
Value = powerUsage.Value
};
await HttpService.Post("api/deviceupdate", signalrRequest);
}
}
