The library uses the Fetch API and supports several data formats:
- HAL, for Hypertext Application Language;
- JSON: API;
- Siren, a structured interface to represent entities;
- Web Linking (HTTP Link header), a model of relationships between resources and types;
- the HTML5 links.
Unlike most other libraries, Ketting does not rely on URIs, but on relationship types and links. Because a basic premise of building a good REST service is that URIs must be discovered and not hard-coded in an application.
Source : Official site