const options = {method: 'GET', headers: {'x-api-key': '<api-key>'}};

fetch('https://studyfetchapi.com/api/v1/folders/tree', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

[
  {
    "_id": {},
    "name": "<string>",
    "organizationId": "<string>",
    "subfolders": "<array>",
    "parentFolderId": "<string>",
    "description": "<string>",
    "metadata": {
      "color": "<string>",
      "icon": "<string>",
      "materialCount": 123,
      "totalSize": 123,
      "lastActivity": "2023-11-07T05:31:56Z"
    },
    "createdAt": {},
    "updatedAt": {}
  }
]