SOA 12.1.3 introduced the REST adapter that helps to RESTify SOAP based services very easily, literally with a click of a button. In future releases (SOA 12.2.1) this capability gets even strengthen by allowing native JavaScript and JSON support, which allows to, “for the first time”, treat a JSON payload all the way along from receiving it as part of a WS payload, process it as part of a composite, for example with BPEL and use it as part of a “next-hop” without having to inflate it into XML DOM object.
Regardless of the REST adapter endpoint, it is also possible to apply existing and custom policies into REST endpoints using OWSM, in the same way that you would do for SOAP based endpoints.