public async Task Invoke(HttpContext context)
{
WriteRequestParam(context);
if (context.WebSockets.IsWebSocketRequest)
{
WebSocket webSocket = await context.WebSockets.AcceptWebSocketAsync();
Console.WriteLine("WebSocket connected");
string connId = _manager.AddSocket(webSocket);
await SendConnIdAsync(webSocket, connId);
await ReceiveMessageAsync(webSocket, async (result, buffer) =>
{
if (result.MessageType == WebSocketMessageType.Text)
{
var message = Encoding.UTF8.GetString(buffer, 0, result.Count);
Console.WriteLine($"Message received: {message}");
await RouteJSONMessageAsync(message);
return;
}
else if (result.MessageType == WebSocketMessageType.Close)
{
Console.WriteLine("Received close message");
string id = _manager.GetAllSockets().FirstOrDefault(s => s.Value == webSocket).Key;
_manager.GetAllSockets().TryRemove(id, out WebSocket socket);
await socket.CloseAsync(
result.CloseStatus.Value,
result.CloseStatusDescription,
CancellationToken.None);
return;
}
});
}
else
{
Console.WriteLine("Hello from the the 2nd request delegate.");
await _next(context);
}
}
