curl --request POST \
  --url https://app.sphinxhq.com/api/documents/ \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "file": "<string>",
  "original_name": "<string>",
  "case_id": 123,
  "check_id": 123,
  "delete_after": 123
}
'

{
  "id": 123,
  "check": 123,
  "file": "<string>",
  "original_name": "<string>",
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z",
  "case": 123,
  "delete_after": -1
}