import Morphik from 'morphik';

const client = new Morphik({
  apiKey: process.env['MORPHIK_API_KEY'], // This is the default and can be omitted
});

const document = await client.documents.retrieve('document_id');

console.log(document.app_id);

{
  "content_type": "<string>",
  "external_id": "<string>",
  "filename": "<string>",
  "metadata": {},
  "metadata_types": {},
  "storage_info": {},
  "system_metadata": {},
  "additional_metadata": {},
  "chunk_ids": [
    "<string>"
  ],
  "summary_storage_key": "<string>",
  "summary_version": 123,
  "summary_bucket": "<string>",
  "summary_updated_at": "<string>",
  "folder_name": "<string>",
  "end_user_id": "<string>",
  "app_id": "<string>",
  "folder_path": "<string>",
  "folder_id": "<string>"
}