Xml Real Time Applications

Federal Register

Building the Realtime User Experience

The Web is increasingly happening in realtime. With websites such as Facebook and Twitter leading the way, users are coming to expect that all sites should serve content as it occurs—on smartphones as well as computers. This book shows you how to build realtime user experiences by adding chat, streaming content, and including more features on your site one piece at a time, without making big changes to the existing infrastructure. You'll also learn how to serve realtime content beyond the browser. Throughout the book are many practical JavaScript and Python examples for advanced web developers that you can use on your site now. And in the final chapter, you'll build a location-aware game that combines all of the technologies discussed. Use the latest realtime syndication technology, including PubSubHubbub Build dynamic widgets on your homepage to show realtime updates from several sources Learn how to use long polling to "push" content from your server to browsers Create an application using the Tornado web server that makes sense of massive amounts of streaming content Understand the unique requirements for setting up a basic chat service Use IM and SMS to enable users to interact with your site outside of a web browser Implement custom analytics to measure engagement in realtime

XML in Flash

XML in Flash is an excellent introduction to creating state-of-the-art Flash applications with XML. XML is quickly becoming the most popular way to store and manage data. Flash's XML Socket makes it possible to network Flash front-ends to an application server. This allows developers to use a Flash interface for applications such as message boards, real-time chats, surveys, news feeds, and games. XML in Flash begins by illustrating the basics of XML and the Flash XML Object. In Part I, Flash is used as a teaching aid as you learn the basics of Flash/XML integration. Part II covers how Flash works with middleware languages, such as PHP and ASP, as well as performance and optimization. You will also create a Flash message board with a database. Part III delves into the advantages of XMLSocket. Hands-on projects include creating a stock market ticker to receive XML data from servers. Finally, the appendixes include invaluable reference information on XML, XMLNode objects, and XMLSocket objects, as well as Frequently Asked Questions. The example applications also illustrate the key concepts necessary for understanding the Flash/XML relationship. You will be able to use the applications on the accompanying Web site regardless of whether or not you spend the time to read and learn about their inner workings.