Is there a simple, down to earth, sample/example/tutorial for WebSockets Server and Client implementation in ASP.NET 4.0 to get me started? I know this question has been asked, but it hasn't been answered properly. There is a lot of stuff about client side, but cannot find a simple explanation about server-side in ASP.NET
Thanks!
~Update: I Found this tutorial, but cannot make it work, the connection closes right after attempting to connect. any one can make it work? http://www.undisciplinedbytes.com/2010/06/html-5-c-web-sockets-server-and-asp-net-client-implementation/
The WebSocket is closed before the connection is established error message indicates that some client code, or other mechanism, has closed the websocket connection before the connection was fully established.
close() The WebSocket. close() method closes the WebSocket connection or connection attempt, if any. If the connection is already CLOSED , this method does nothing.
ASP.NET Core SignalR is a library that simplifies adding real-time web functionality to apps. It uses WebSockets whenever possible. For most applications, we recommend SignalR over raw WebSockets.
You can check if a WebSocket is disconnected by doing either of the following: Specifying a function to the WebSocket. onclose event handler property, or; Using addEventListener to listen to the close event.
ASP.NET won't support WebSockets until Windows Server 8/IIS 8. See here.
There's this tutorial, Getting started with WebSockets in the Windows 8 developer preview, from September 2011.
If you want to see a working WebSocket server in .NET I'd recommend taking a look at SuperWebSocket which is open source. If you just want to use a .NET WebSocket server then SuperWebSocket (again), XSockets and Fleck are worth a look.
SignalR also relies on Windows 8. See the SignalR WebSockets docs.
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