creating zip file of Google Drive folder - Google Apps Script

Another way of handling a google drive folder, instead of directly giving a link to it from our Google apps script web application, might be to zip it,

https://stackoverflow.com/questions/13259041/creating-a-zip-file-inside-google-drive-with-apps-script

 

This has a 50 MB limit for the zip file, I think. 

https://stackoverflow.com/questions/45830261/is-there-a-size-limit-to-a-blob-for-utilities-unzipblob-in-google-apps-script