λ http -v post 127.0.0.1:8000/api-token-auth/ password=adminadmin username=admin
POST /api-token-auth/ HTTP/1.1
Accept: application/json, */*
Accept-Encoding: gzip, deflate
Connection: keep-alive
Content-Length: 47
Content-Type: application/json
Host: 127.0.0.1:8000
User-Agent: HTTPie/0.9.9

{
    "password": "adminadmin",
    "username": "admin"
}

HTTP/1.0 200 OK
Allow: POST, OPTIONS
Content-Length: 52
Content-Type: application/json
Date: Tue, 02 May 2017 07:44:07 GMT
Server: WSGIServer/0.2 CPython/3.6.1
X-Frame-Options: SAMEORIGIN

{
    "token": "23ac1e2409151736993cad8629d62068628ff6d3"
}