Service definitions define REST services and the endpoints of a service.

The definitions are created in the Service Builder either manually, or by importing a Swagger or Open API specification. APIs can be invoked from the Service Builder to test them, to see what data they return, and to capture the successful and error responses.

Once defined, service definitions can then be referenced from maps or flows. When the map or flow is run, it invokes the REST service as defined by its service definition.