curl --request POST \
  --url https://extraction-api.nanonets.com/api/v2/classify/async \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "input": [
    "file://a1b2c3d4-e5f6-7890-abcd-ef1234567890",
    "file://c3d4e5f6-a7b8-9012-cdef-a12345678901"
  ],
  "classification_config": {
    "categories": [
      {
        "name": "Invoice"
      },
      {
        "name": "Receipt"
      }
    ],
    "mode": "document"
  }
}
'

{
  "success": true,
  "message": "<string>",
  "total": 123,
  "items": [
    {
      "input": "<string>",
      "record_id": "<string>",
      "file_id": "<string>",
      "error": "<string>"
    }
  ],
  "batch_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}