Integration with OCI - documentation?

Hi there.

We have experience integrating systems with cXML but are looking for some clarity on the integration of an external catalog with OCI.

I have come across the following documentation:https://wiki.scn.sap.com/wiki/download/attachments/395284636/OCI_50_EN20130121.pdf?version=1&modificationDate=1414013853000≈i=v2

But this appears to be more focused on the SAP side.

Is there some more relevant documentation designed for developers who are looking to integrate with SAP using OCI from the catalog side? I've struggled to find anything else.

Thank you in advance.