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

curl -i -X PUT 'http://localhost:3080/v2/projects/10010203-0405-0607-0809-0a0b0c0d0e0f' -d '{"name": "test2"}'

PUT /v2/projects/10010203-0405-0607-0809-0a0b0c0d0e0f HTTP/1.1
{
    "name": "test2"
}


HTTP/1.1 200
CONTENT-LENGTH: 329
CONTENT-TYPE: application/json
DATE: Thu, 08 Jan 2015 16:09:15 GMT
SERVER: Python/3.5 GNS3/2.0.0dev1
X-ROUTE: /v2/projects/{project_id}

{
    "auto_close": true,
    "auto_open": false,
    "auto_start": false,
    "filename": "test.gns3",
    "name": "test2",
    "path": "/var/folders/3s/r2wbv07n7wg4vrsn874lmxxh0000gn/T/tmpvagfqk1t/projects/10010203-0405-0607-0809-0a0b0c0d0e0f",
    "project_id": "10010203-0405-0607-0809-0a0b0c0d0e0f",
    "status": "opened"
}