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

curl -i -X POST 'http://localhost:3080/v2/projects/4f486b95-604e-43ea-9b44-d6db866aa331/snapshots' -d '{"name": "snap1"}'

POST /v2/projects/4f486b95-604e-43ea-9b44-d6db866aa331/snapshots HTTP/1.1
{
    "name": "snap1"
}


HTTP/1.1 201
Content-Length: 170
Content-Type: application/json
Date: Thu, 03 Nov 2016 17:20:04 GMT
Server: Python/3.5 GNS3/2.0.0dev4
X-Route: /v2/projects/{project_id}/snapshots

{
    "created_at": 1478193604,
    "name": "snap1",
    "project_id": "4f486b95-604e-43ea-9b44-d6db866aa331",
    "snapshot_id": "9ff3332f-5388-4946-80a7-b81334f6f321"
}