Download zip folder from windchill server using REST API

Hello everyone,

I have Windchill PDM Link 11.1 M020  

I am try to download folder content from windchill server using REST API in java but, I have tried

from Article - CS346406 Windchill REST API but it wont work. 

What should I do can someone please suggest me another API for this or another way to get folder content to download at the local storage using REST API