public async Task Get()
{
var webSocketManager = _httpContextAccessor.HttpContext.WebSockets;
if (webSocketManager.IsWebSocketRequest == false)
{
return;
}
var webSocket = await webSocketManager.AcceptWebSocketAsync();
var connectionOpen = true;
while (connectionOpen)
{
(var connectionClosed, var message) = await ReceiveMessage(webSocket);
connectionOpen = connectionClosed == false;
if (message == "REQUEST_RATE_BTCEUR")
{
var btcEuroRate = await _bitcoinRatesService.RetrieveBtcEuroRate(CancellationToken.None);
var responseMessage = $"{DateTime.UtcNow} BTC = {btcEuroRate} EUR";
var responseBuffer = Encoding.UTF8.GetBytes(responseMessage);
await webSocket.SendAsync(new ArraySegment <byte>(responseBuffer), WebSocketMessageType.Text, true, CancellationToken.None);
}
}
}
public async Task Get()
{
await _responseStreamer.StreamResponse(
async (write, cancellationToken) =>
{
while (true)
{
if (cancellationToken.IsCancellationRequested)
{
break;
}
var btcEuroRate = await _bitcoinRatesService.RetrieveBtcEuroRate(cancellationToken);
await write($"{DateTime.UtcNow} BTC = {btcEuroRate} EUR");
await Task.Delay(2000, cancellationToken);
}
});
}