What is the optimal REST url for my task?

Question

RESTful API

Hello.

Every time I puzzle over the formation of REST urls for non-standard cases.
There are users, the user can have children and parents. It is necessary to implement sending letters/push messages to your descendants. In the body of the request, you should specify a list of descendant emails to which letters / pushes should be sent.

What are some ideas for compiling a url that is understandable and unambiguous?
users/<user_id>/???

Answer 1

in general, while such an option comes to mindusers/<user_id>/actions/push