curl --request POST \
  --url https://api.chunkr.ai/api/v1/files \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: multipart/form-data' \
  --form 'file_metadata=<string>' \
  --form file=@example-file

{
  "content_type": "<string>",
  "created_at": "2023-11-07T05:31:56Z",
  "file_id": "<string>",
  "file_name": "<string>",
  "file_size": 123,
  "metadata": {},
  "url": "<string>"
}