curl -i -X POST 'http://localhost:3080/v2/projects/222c37b9-df06-417a-a4c3-9a7359e1c09f/nodes/stop' -d '{}'

POST /v2/projects/222c37b9-df06-417a-a4c3-9a7359e1c09f/nodes/stop HTTP/1.1
{}


HTTP/1.1 204
Connection: close
Content-Length: 0
Content-Type: application/octet-stream
Date: Tue, 20 Nov 2018 06:01:08 GMT
Server: Python/3.6 GNS3/2.2.0dev4
X-Route: /v2/projects/{project_id}/nodes/stop