How can a custom REST API endpoint be created to get Reference documents on a given WTDocument

[KD_10675014]

How can a custom REST API endpoint be created to get Reference documents on a given WTDocument in Windchill?

I found a very similar QA on Java API but I want to get the same functionality in a custom REST endpoint:
https://www.ptc.com/en/support/article/CS183968

[VladimirN]

Take a look here - "[Knowledge Hub] Windchill REST Services": https://www.ptc.com/en/support/article/cs254366