curl -i -X POST 'http://localhost:3080/v2/projects/50a86076-8e3b-4659-971c-4572f570529d/nodes/stop' -d '{}'

POST /v2/projects/50a86076-8e3b-4659-971c-4572f570529d/nodes/stop HTTP/1.1
{}


HTTP/1.1 204
Connection: close
Content-Length: 0
Content-Type: application/octet-stream
Date: Mon, 08 Jan 2018 08:16:37 GMT
Server: Python/3.6 GNS3/2.1.2dev1
X-Route: /v2/projects/{project_id}/nodes/stop