DriveAPI: How do I search sub-folders and sub-sub-folders in Google Drive

[Yashmeet]

folderA____ folderA1____folderA1a
       \___ folderA2____folderA2a
                    \___folderA2b

I have above folder structure in Drive. How do I list all the files in all of the folders under the root folderA?

[StephenHind]

@Yashmeet you can't because the API does not support it.  See this feature request from 2018!:

https://issuetracker.google.com/issues/111763024?pli=1

[rajnikant]

Is there any possibilities to implement the mentioned functionalities?