gistfile1.txt

stack@jroll-devstack:~$ curl -X POST -H "Content-Type: application/json" --data-binary '{"params": {"foo": "bar"}, "name": "iscsi.start_iscsi_target"}' http://localhost:9999/v1/commands | python -m json.tool
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   382  100   320  100    62  94618  18332 --:--:-- --:--:-- --:--:--  104k
{
    "command_error": {
        "code": 500,
        "details": "",
        "message": "start_iscsi_target() got an unexpected keyword argument 'foo'",
        "type": "TypeError"
    },
    "command_name": "iscsi.start_iscsi_target",
    "command_params": {
        "foo": "bar"
    },
    "command_result": null,
    "command_status": "FAILED",
    "id": "0ea5b448-8845-423b-b511-912dcc32f2e3"
}