API endpoint that allows users to be viewed or edited.

GET /api/users/a0a19c16-8fbb-4afa-8c9e-d946b97f3b4a/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, DELETE, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "url": "https://katagotraining.org/api/users/a0a19c16-8fbb-4afa-8c9e-d946b97f3b4a/?format=api",
    "username": "jjia20180908"
}