gns3-server/docs/api/examples/put_projectsprojectidiouvmsvmid.txt

curl -i -X PUT 'http://localhost:8000/projects/{project_id}/iou/vms/{vm_id}' -d '{"console": 2001, "ethernet_adapters": 4, "initial_config_content": "hostname test", "l1_keepalives": true, "name": "test", "nvram": 2048, "ram": 512, "serial_adapters": 0}'

PUT /projects/{project_id}/iou/vms/{vm_id} HTTP/1.1
{
    "console": 2001,
    "ethernet_adapters": 4,
    "initial_config_content": "hostname test",
    "l1_keepalives": true,
    "name": "test",
    "nvram": 2048,
    "ram": 512,
    "serial_adapters": 0
}


HTTP/1.1 200
CONNECTION: keep-alive
CONTENT-LENGTH: 423
CONTENT-TYPE: application/json
DATE: Thu, 08 Jan 2015 16:09:15 GMT
SERVER: Python/3.4 GNS3/1.3.dev1
X-ROUTE: /v1/projects/{project_id}/iou/vms/{vm_id}

{
    "console": 2001,
    "ethernet_adapters": 4,
    "initial_config": "initial-config.cfg",
    "l1_keepalives": true,
    "name": "test",
    "nvram": 2048,
    "path": "/private/var/folders/3s/r2wbv07n7wg4vrsn874lmxxh0000gn/T/pytest-3782/test_iou_update0/iou.bin",
    "project_id": "a1e920ca-338a-4e9f-b363-aa607b09dd80",
    "ram": 512,
    "serial_adapters": 0,
    "vm_id": "69ad7d57-d1ec-447e-b8da-7b2f888a85e5"
}