Download a specific revision of a file in google drive api

Question

I can download specific file by its iD,

1. get the downloadUrl
2. Download the content using get.

But I am not able to find anything which i

Answer 1

If you user the Revisions part of the Drive API, you get get a list of revisions for a given document. Each revision comes with either an "ExportLinks" list, containing links with different export formats, or a downloadUrl (for non-Google files).

Using these, you can download a specific revision.