downloadWorkDocsFolder.js

var fs = require('fs');
const https = require('https');
const AWS = require('aws-sdk');
var wd = new AWS.WorkDocs();

async function downloadFolder(folderName, folderId) {
  let limit = 100;
  console.log('Start Download folder:', folderId);

  if (!fs.existsSync(folderName)) {
    fs.mkdirSync(folderName);
  }
  let marker;
  do {
    let folderContents = await wd.describeFolderContents({ FolderId: folderId, Marker: marker, Limit: limit }).promise()
    marker = folderContents.Marker;
    console.log('copy files', folderContents.Documents.length, marker)

    for (let folder of folderContents.Folders) {
      await downloadFolder(`${folderName}/${folder.Name}`, folder.Id);
    }
    for (let doc of folderContents.Documents) {
      let name = doc.LatestVersionMetadata.Name;
      let versionId = doc.LatestVersionMetadata.Id;
      let docVersion = await wd.getDocumentVersion({ DocumentId: doc.Id, VersionId: versionId, IncludeCustomMetadata: true, Fields: 'SOURCE' }).promise()
      console.log(name);
      await new Promise((resolve, reject) => {
        const file = fs.createWriteStream(`${folderName}/${name}`);
        const request = https.get(docVersion.Metadata.Source.ORIGINAL, function (response) {
          response.pipe(file);
          response.on('end', () => resolve(true))
        });
        request.on('error', reject);
        return request;
      });
    }
  } while (folderContents.Marker);
  console.log('Finishj Download folder:', folderId);
}


(async () => {
  const args = process.argv.slice(2);
  const dir = args[0];
  const folderId = args[1];
  downloadFolder(dir, folderId);
})();