Caffeine is a Javascript library for working with SharePoint 2007. Caffeine is designed to make building applications on SharePoint easier especially in environments where server-side code is not an option. Caffeine also makes it easy to create Ajax-driven applications on top of SharePoint.

Today Caffeine is very early in development and I anticipate adding quite a bit of functionality over the coming months. The APIs will likely change somewhat as I continue to fix bugs and work out a model that is easy and logical to use. But in the mean time I would appriciate any input and feedback you may have.

Today the most fully-baked portion of Caffeine is the SharePoint web service support. Caffeine supports calling any of SharePoint’s web services. In addition, Caffeine will parse the XML response into a convenient Javascript object-based syntax.

In this example, we call SharePoint’s GetUserInfo web service and alert several user properties.

// create web service object
var userGroupWs = new Caffeine.WebServices.UserGroup("http://myserver");

// call GetUserInfo method
userGroupWs.executeMethod(
	"GetUserInfo",								// web method to call
	{ userLoginName: "domain\\username" },		// method parameters
	callback);									// callback function

// alert results
function callback(output) {
	var userinfo = output.result.GetUserInfoResult.GetUserInfo.User;
	alert(userinfo.attributes["Email"]);
}

• Caffeine requires the Prototype Javascript library.
• Caffeine is only tested with SharePoint 2007 web services.