Limit and offset

 You can use limit and offset in order to get a range of records. They can be used separately or together. Only setting the limit (to a value X) will make the query operate on the first X records. Only setting the offset will make the query operate on the last Y records, starting from the offset value.

[GET] /...?range={"offset":<length:int>,"limit":<length:int>}

Example:

[GET] http://<your-app-id>/rest/posts?range={"offset":10,"limit":5}