API endpoint that allows users to be viewed or edited.

GET /api/users/18d91fa5-54a8-4fc4-bb1a-f61322337a81/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, DELETE, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "url": "https://katagotraining.org/api/users/18d91fa5-54a8-4fc4-bb1a-f61322337a81/?format=api",
    "username": "alphaliu"
}