GET /api/users/6/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, DELETE, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "username": "toon",
    "gravatar": "//www.gravatar.com/avatar/6f2b301ca323a50164623521f89f8932?d=wavatar",
    "has_key": false
}