User Instance
GET /api/users/289/?format=api
{
"username": "josboot",
"gravatar": "//www.gravatar.com/avatar/cfd614161ba9f35b125c11523a68f07e?d=wavatar",
"has_key": false
}GET /api/users/289/?format=api
{
"username": "josboot",
"gravatar": "//www.gravatar.com/avatar/cfd614161ba9f35b125c11523a68f07e?d=wavatar",
"has_key": false
}