/// <summary>
/// Creates web socket message from model and sends to specified client
/// </summary>
public static async Task SendAsync <TModel>(this SocketBase socket, TModel model, IModelWriter writer) where TModel : ISerializableModel
{
WebSocketMessage message = new WebSocketMessage
{
OpCode = SocketOpCode.UTF8,
Content = new MemoryStream(Encoding.UTF8.GetBytes(writer.Serialize(model)))
};
await socket.SendAsync(await _writer.Create(message));
}
/// <summary>
/// Process websocket message
/// </summary>
private async Task ProcessMessage(IConnectionInfo info, SocketBase socket, WebSocketMessage message)
{
switch (message.OpCode)
{
case SocketOpCode.Binary:
case SocketOpCode.UTF8:
//if user makes a mistake in received method, we should not interrupt connection handling
try
{
await _handler.Received(_server, info, (WsServerSocket)socket, message);
}
catch (Exception e)
{
if (_server.Logger != null)
{
_server.Logger.LogException("Unhandled Exception", e);
}
}
break;
//close the connection if terminate requested
case SocketOpCode.Terminate:
info.Close();
break;
//if client sends a ping message, response with pong
case SocketOpCode.Ping:
await socket.SendAsync(PredefinedMessages.PONG);
break;
//client sent response pong to ping message
case SocketOpCode.Pong:
socket.KeepAlive();
break;
}
}