File Support

http POST http://localhost:8000/api/v3/importers/file/ name='bar' download_policy='immediate' sync_mode='additive' feed_url='https://repos.fedorapeople.org/pulp/pulp/demo_repos/test_file_repo/PULP_MANIFEST'

HTTP/1.0 400 Bad Request
Allow: GET, POST, HEAD, OPTIONS
Content-Length: 53
Content-Type: application/json
Date: Wed, 14 Mar 2018 20:39:16 GMT
Server: WSGIServer/0.2 CPython/3.6.2
Vary: Accept, Cookie
X-Frame-Options: SAMEORIGIN

{
    "sync_mode": [
        "\"additive\" is not a valid choice."
    ]
}