Introduction:
Prior to IBM Sterling OMS v9.4, it was only possible to expose APIs/Services as SOAP web service. REST API features are enabled now with standard installs and updates of IBM Sterling OMS v9.4 onwards.
XML API (XAPI) capabilities are now accessible through a simple REST API layer. Developers can create, read, update, and delete resources by using HTTP calls that are compliant with REST standards.
Both SOAP and REST have their own Pros and Cons. But here we will just focus on basics of enabling REST services with examples.