private async Task SendMessage()
{
var outputStream = OutputStream as MemoryStream;
outputStream.Seek(0, SeekOrigin.Begin);
var socketStream = client.GetOutputStream();
string header = $"{Version} {StatusCode} {ReasonPhrase}\r\n" +
Headers +
$"Content-Length: {outputStream.Length}\r\n" +
"\r\n";
byte[] headerArray = Encoding.UTF8.GetBytes(header);
await socketStream.WriteAsync(headerArray, 0, headerArray.Length);
await outputStream.CopyToAsync(socketStream);
await socketStream.FlushAsync();
}
