private static HttpWebRequest CreateRequest(DeviceAuthorizationInfo device, long sentDate, byte[] message)
{
var url = $"https://akka-iot.azure-devices.net/devices/{device.DeviceId}/messages/events?api-version=2016-11-14";
var request = (HttpWebRequest)WebRequest.Create(url);
request.Headers.Add("Authorization", device.SharedAccessKeySignature);
request.Headers.Add("iothub-app-SentAt", sentDate.ToString());
request.Headers.Add("iothub-app-PayloadVersion", "1");
request.Method = "POST";
request.ContentType = "application/json";
request.ContentLength = message.Length;
using (var stream = request.GetRequestStream())
{
stream.Write(message, 0, message.Length);
}
return(request);
}
private async Task SendMessage()
{
try
{
var random = new Random();
var message = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(new
{
temperature = random.Next(50, 80),
humidity = random.Next(40, 70)
}));
var now = (long)(DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc)).TotalSeconds;
var request = CreateRequest(DeviceAuthorizationInfo.For(_deviceId), now, message);
using (var response = (HttpWebResponse)await request.GetResponseAsync())
{
Console.WriteLine($"Message sent from {_deviceId}, result: {response.StatusCode}");
}
}
catch (Exception e)
{
Console.WriteLine(e);
}
}