JavaScript Client Library for the Google Contacts Data API
June 30th, 2008 | Published in Google Code
To help get developers started, we've created a sample "friend picker" to demonstrate how easy it can be to add the API into your existing applications.
The complete source code and interactive demo is available online for download, along with a brand new interactive developers guide (yet another benefit of working with a JavaScript-based client library). Although this sample app demonstrates authenticated read-only operations, the JavaScript client library also allows you to add contacts, modify contacts, manage groups and other operations also available in the Java, Python and .NET libraries.
Of course, there's a lot more to the Google Contacts Data API then just friend pickers. Email clients, interactive games, photo sharing, event sharing, and just about any other activity that involves more than one user stands to benefit. And of course, if you need any help using the API or just want to share your latest awesome project, there's an entire community of enthusiastic developers available in the Google Contacts API group.