http web service in async mode? #le2YH

I think in my dotnet client/server system, we use WCF duplex extensively, meaning the server can push updates to the clients. Each client must subscribe though. I think this is exactly event-driven as you said.

I remember that if I put a break point in the client’s updateReceived() callback method, it gets hit automatically, without the client polling the server.

WCF duplex is a standard and mature feature in microsoft WCF.

The server endpoint uses https, and I believe it’s a web service.

Is it possible that the server push is implemented actually by client poll under the hood? I don’t think so. There’s a polling duplex ..

See http://msdn.microsoft.com/en-us/library/cc645027(v=vs.95).aspx

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