API endpoint that allows users to be viewed or edited.

GET /api/users/30a16204-2ee7-43d0-81bb-e9c5b990b583/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, DELETE, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "url": "https://katagotraining.org/api/users/30a16204-2ee7-43d0-81bb-e9c5b990b583/?format=api",
    "username": "SIGN"
}