REST

Flickr provides a number of different services for interacting with its data. If you look at the list of methods that the Flickr API supports, you'll see they are divided into groups; one group of API methods deals with photos, another with people, and so on.

Flickr can accept requests to these methods in a number of different formats, all of which we can use with XForms. The easiest to understand and test is REST, and to use it to make a call to any one of the methods listed we need to go through the following URI:

http://www.flickr.com/services/rest/

The parameters that you must pass are the method you want to call, and a special application key. The key must be obtained from Flickr, and although we have one for this tutorial, if you plan to develop the sample form further you should get your own key.