import Morphik from 'morphik';

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

const documentDownloadURLResponse = await client.documents.getDownloadURL('document_id');

console.log(documentDownloadURLResponse.download_url);

{
  "download_url": "<string>",
  "expires_in": 123
}