curl -i -X PUT 'http://localhost:3080/v2/gns3vm' -d '{"vmname": "TEST VM"}'

PUT /v2/gns3vm HTTP/1.1
{
    "vmname": "TEST VM"
}


HTTP/1.1 201
CONTENT-LENGTH: 118
CONTENT-TYPE: application/json
DATE: Thu, 08 Jan 2015 16:09:15 GMT
SERVER: Python/3.5 GNS3/2.0.0dev1
X-ROUTE: /v2/gns3vm

{
    "auto_stop": true,
    "enable": false,
    "engine": "vmware",
    "headless": false,
    "vmname": "TEST VM"
}