Comment 3 for bug 1674676

Relationship links are not meant to be resolved. They are actually URNs. A URN is just like a GUID except is used a URI syntax so it is easier to read. keystone really doesn't do a full hypertext driven API, but if it did the URN is what you would use to find an actual URL to go to.

For example, in a document for a user representation there might be a dictionary key 'relationships' and the value would may URN to URL. So 'GET /user/1234' gives you a user representation. Then you could do something like 'user[relationships][http://does-not-exist#user-groups]' to find a URL that can be used to retrieve a user's groups.

This is sort of partially implemented and we don't seem to want people to use hypertext and instead want URLs hardcoded in clients. But that's really what this is for.