또한 보기:
http://jsonapi.org/format/#document-resource-object-relationships links: a links object containing at least one of the following:
- self: a link for the relationship itself (a "relationship link"). This link allows
the client to directly manipulate the relationship. For example, it would allow a
client to remove an author from an article without deleting the people resource itself.
- related: a related resource link
A relationship object that represents a to-many relationship MAY also contain pagination
links under the links member, as described below.