REST API
GET /auth
POST /auth
DELETE /auth/(string:refresh_token)
GET /me
GET /objects
GET /objects/(object_id)
GET /objects/(object_id)/children
GET /objects/(object_id)/children/(int:child_id)
GET /objects/(object_id)/contents
GET /objects/(object_id)/descendants
GET /objects/(object_id)/relations
GET /objects/(object_id)/relations/(string:relation_name)
GET /objects/(object_id)/relations/(string:relation_name)/(int:related_id)
GET /objects/(object_id)/sections
GET /objects/(object_id)/siblings
POST /objects
POST /objects/(object_id)/children
POST /objects/(object_id)/relations/(string:relation_name)
PUT /objects/(object_id)/children/(int:child_id)
PUT /objects/(object_id)/relations/(string:relation_name)/(int:related_id)
DELETE /objects/(object_id)
DELETE /objects/(object_id)/children/(int:child_id)
DELETE /objects/(object_id)/relations/(string:relation_name)/(int:related_id)
GET /posters
GET /posters/(object_id)