You would need to implement a JavaScript polling to ping your server within a given time. For example, you write a JavaScript function that performs an AJAX request to your server to fetch the data. You may need to use setInterval to ping your server every seconds. One example is this:
ASP.NET MVC 5: Implementing a ShoutBox Feature Using jQuery and AJAX[
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You may need to consider performance when going to this route as polling every seconds can be very expensive when fetching large data sets.