StockList: Real-time Business Analytics Using Dojo and Lightstreamer

The proliferation of online data gives businesses more information than they can possibly manage. Real-time dashboards and trading systems help users make sense of financial information, analytics, business trends, customer stats, and much more. The Dojo Toolkit and Lightstreamer are two popular choices available for building your own platforms and applications.

Building on a long-standing collaboration between SitePen and Lightstreamer (Weswit Srl), SitePen created the new LightstreamerStore. Based on the new Dojo Toolkit 1.6 Object Store API and the latest Lightstreamer preview releases, it is intended to make streaming data from a Lightstreamer server super-simple for developers. SitePen also updated the existing Lightstreamer + Dojo Toolkit demo to demonstrate this simplified interface. The demo visualizes the data returned in real-time from Lightstreamer using both the Dojo DataGrid and Dojo Charting. Charts display the “normalized last price” to more easily visualize changes in prices.

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Many Comet Solutions for your Real-time Apps

We’ve been interested in Comet for a long time, dating back to the days of mod_pubsub and early talks on event-driven user interfaces. Now, with the arrival of WebSockets in WebKit-based browsers, and expected in Firefox 4.x and Internet Explorer 9 once the next WebSockets specification draft is completed, and with Comet techniques used by many of the world’s most popular sites, Comet has arrived as a viable necessity for rolling-out real-time capabilities for your web applications.

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