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

curl -i -X POST 'http://localhost:3080/v2/projects/5485e521-146b-4be6-83e8-670f2573e63a/snapshots' -d '{"name": "snap1"}'

POST /v2/projects/5485e521-146b-4be6-83e8-670f2573e63a/snapshots HTTP/1.1
{
    "name": "snap1"
}


HTTP/1.1 201
Content-Length: 170
Content-Type: application/json
Date: Tue, 27 Sep 2016 10:01:24 GMT
Server: Python/3.5 GNS3/2.0.0dev1
X-Route: /v2/projects/{project_id}/snapshots

{
    "created_at": 1474970484,
    "name": "snap1",
    "project_id": "5485e521-146b-4be6-83e8-670f2573e63a",
    "snapshot_id": "1f94aef3-dc18-4b44-abc6-49f04da13aaa"
}