API endpoint that allows users to be viewed or edited.

GET /api/users/99fd1689-3d8d-4835-a238-1b4bbd4b2a5e/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, DELETE, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "url": "https://katagotraining.org/api/users/99fd1689-3d8d-4835-a238-1b4bbd4b2a5e/?format=api",
    "username": "csu"
}