const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.phaseo.app/v1/files', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "object": "<string>",
  "data": [
    {
      "id": "<string>",
      "object": "<string>",
      "bytes": 123,
      "created_at": 123,
      "filename": "<string>",
      "purpose": "<string>",
      "status": "<string>",
      "status_details": {}
    }
  ]
}