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

curl -i -X PUT 'http://localhost:3080/v2/compute/projects/90010203-0405-0607-0809-0a0b0c0d0e0b' -d '{"name": "second_name", "path": "/private/var/folders/3s/r2wbv07n7wg4vrsn874lmxxh0000gn/T/pytest-of-noplay/pytest-149/test_update_path_project_non_l0"}'

PUT /v2/compute/projects/90010203-0405-0607-0809-0a0b0c0d0e0b HTTP/1.1
{
    "name": "second_name",
    "path": "/private/var/folders/3s/r2wbv07n7wg4vrsn874lmxxh0000gn/T/pytest-of-noplay/pytest-149/test_update_path_project_non_l0"
}


HTTP/1.1 403
CONTENT-LENGTH: 96
CONTENT-TYPE: application/json
DATE: Thu, 08 Jan 2015 16:09:15 GMT
SERVER: Python/3.5 GNS3/2.0.0dev1
X-ROUTE: /v2/compute/projects/{project_id}

{
    "message": "You are not allowed to modify the project directory path",
    "status": 403
}