Windchill RV&S integration with SharePoint - Has anyone done that?

These are two possible use cases I'm contemplating:

1) Synchronize a list of issues maintained in SharePoint with matching issue items in Integrity.

2) When a file is stored in SharePoint, check it into Integrity CM and vice-versa.

Has anyone done anything like that?

I cannot find any tools, scripts, APIs, etc. that could be a starting point, especially for the latest "SharePoint online" version.