Access REST data via URLs
Accessing Data - via URLs  HTTP PUT and POST methods are used to place data in the cache, with URLs to address the cache name and key(s) - the data being the body of the request (the data can be anything you like). It is important that a Content-Type header is set. GET/HEAD are used to retrieve data ! Please see here for the details. Other headers are used to control the cache settings and behaviour (detailed in that link !)