curl --request POST \
  --url https://api.oquiz.net/files/upload \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: multipart/form-data' \
  --form 'folder=<unknown>' \
  --form file='@example-file'

{
  "colors": [
    "<string>"
  ],
  "file": {
    "duration": "<unknown>",
    "id": "<string>",
    "src": "<string>",
    "color": "<unknown>",
    "hash": "<unknown>",
    "createdAt": "2023-11-07T05:31:56Z",
    "userId": "<unknown>"
  }
}