Provider_method_not_allowed

curl http://localhost:8080/providers \
>     -d hostname=master-host \
>     -d docker_base_url='https://128.199.198.172:2376' \
>     -d type='master' \
>     -X POST -i
HTTP/1.0 405 METHOD NOT ALLOWED
Content-Type: application/json
Content-Length: 60
Allow: HEAD
Allow: OPTIONS
Allow: GET
Server: Werkzeug/0.11.10 Python/2.7.6
Date: Wed, 25 May 2016 04:49:12 GMT

{
    "message": "Method Not Allowed",
    "status": 405
}