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I've been looking into using SignalR for a while now, and I think I have a good candidate for it.

I have a page which allows users of the system to leave Comments, and at the moment it uses JQuery to periodically refresh the list of comments. I think SignalR would replace this nicely, i.e. if there were two users looking at the list and one wrote a comment, I would like it to appear instantly in the second.

All well and good, I have a sort of template where this works.

However

My system itself can sometimes add automatic notifications to the list - These are put into the database directly by a non-web based application.

How can I get SignalR to see the new information from the database and send it to the users?

Jacco
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KingCronus
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1 Answers1

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In SignalR the hub is a static part in your application. You can spin up a System.Threading.Timer in your webapplication to periodically check your database for new notifications and add those to the data used by the hub.

This can even be improved by using a SqlCacheDependency.

A subjective side note: I do agree this type of functionality is a very good candidate for SignalR.

Community
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Jacco
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  • What about this scenario on [Refreshing data periodically using SignalR rather than broadcasting to clients](https://stackoverflow.com/questions/56899276/refreshing-data-periodically-using-signalr-rather-than-broadcasting-to-clients)? Any help please? – Jack Jul 05 '19 at 08:29