 | Level: Intermediate Dan Jemiolo (danjemiolo@us.ibm.com), Advisory Software Engineer, IBM
11 Mar 2008 Web clients can communicate with an OpenSocial application using
any HTTP or Ajax library they choose. In this tutorial, you will use the Dojo
JavaScript library to build your clients with the intent of illustrating how you
might build clients with other libraries or the standard XMLHttpRequest object. You'll create the server-side implementation of the OpenSocial APIs using Project Zero—specifically, you'll write Groovy scripts that read and write Atom-formatted data using Zero's Atom library. After completing this tutorial, you should understand what is necessary to implement OpenSocial on Zero or any other Web framework. As always, you can re-create the sample application by following along, step-by-step, or you can download the completed application from this tutorial.
In this tutorial
In this tutorial, you will learn about the OpenSocial API and what it takes to implement both the server and client sides of OpenSocial applications. You will build a complete OpenSocial application using Project Zero and highlight a number of useful technologies along the way.
Objectives
Web clients can communicate with an OpenSocial application using any HTTP or
Ajax library they choose. In this tutorial, you will use the Dojo JavaScript
library to build clients with the intent of illustrating how you might build clients with other libraries or the standard XMLHttpRequest object. The server-side implementation of the OpenSocial APIs will be created using Project Zero; specifically, you will write Groovy scripts that read and write Atom-formatted data using Zero's Atom library. After completing this tutorial, you should understand what is necessary to implement OpenSocial on Zero or any other Web framework. As always, you can re-create the sample application by following along, step-by-step, or you can download the completed application right now (see Downloads).
Prerequisites
It is assumed that you have downloaded Project Zero and built one or more
simple applications with it. You should understand Zero's command-line tools and
how to build Atom feeds and relational databases. Finally, you should be able to
debug HTTP-based applications with a Web browser; it is not a strict
requirement, but we do recommend using Firebug (see Resources in the tutorial
for a link) for tracking down bugs in your application.
System requirements
To run the code provided in this tutorial you will need the Java® Runtime Environment (JRE) 5.0 or higher, Project Zero M3, and a Web browser.
Duration
1 hour
Formats html, pdf
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