This presentation introduces ASP.NET SignalR, a library for adding real-time functionality to web applications. SignalR allows for bidirectional communication between server and client via persistent connections. It was explained that SignalR chooses the best network transport based on client capabilities, with WebSockets being the ideal method. The presentation covered the SignalR API, including hubs for high-level communication and persistent connections for lower-level access. A demo of a SignalR chat application was shown to demonstrate its use. Security concerns with SignalR were also briefly discussed.
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