Classes
A class is who a group-scoped event is about. A static class keeps a list you add to; a dynamic class holds whoever's attributes contain its filter, so nobody keeps it up. Beside the classes somebody keeps are temporary lists, picked by a person for one send: you can see them, but a key cannot change one and an event cannot name one. In the High school pack a class is, for example, “5A”.
GETRead a class
Requires groups:read. Returns the class, a temporary list included. kind says how to read who is in it: /members for a static class, /matches for a dynamic one.
200 with the class. 404 not_found if the id is not in this instance.
One class: the same fields in every pack. Press Response on the sample to see one whole.
On failure the body is { error, code } instead.