Staying with the common example of users (authors) and articles, when I request a user, should the returned resource include references to articles written by that user?
It could be argued that, because the article references the user (as being the author), the user is related to the article, but not vice-versa. The relation is the author, not the user and the author is maintained through the article.
I’m trying to decide whether both resources should present all relationships or only those which they maintain directly through an FK. But where would that leave me in regrades to n-m relationships?