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

curl -i -X POST 'http://localhost:3080/v2/projects/6b02daca-6b3b-4349-a874-af2259c033fa/snapshots' -d '{"name": "snap1"}'

POST /v2/projects/6b02daca-6b3b-4349-a874-af2259c033fa/snapshots HTTP/1.1
{
    "name": "snap1"
}


HTTP/1.1 201
Connection: close
Content-Length: 170
Content-Type: application/json
Date: Sat, 30 Mar 2019 08:50:11 GMT
Server: Python/3.6 GNS3/2.2.0dev8
X-Route: /v2/projects/{project_id}/snapshots

{
    "created_at": 1553935810,
    "name": "snap1",
    "project_id": "6b02daca-6b3b-4349-a874-af2259c033fa",
    "snapshot_id": "252d6561-fc64-4e13-8313-639777f1c525"
}