GET /api/users/9/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, DELETE, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "username": "cynddl",
    "gravatar": "//www.gravatar.com/avatar/1ab3a230f4d3e5c5ac343ac63b91aafd?d=wavatar",
    "has_key": false
}