I’m not sure that this is a programming question. It would be if there was an API that allowed developers to add and remove users from a drive, for instance.
Is Google Drive only for personal use? Is there a way to make a single drive and share it with a group of users? Is there a way to create a user with read only access?
The Google Drive web UI shares the same functionalities as the old Google Docs web UI, meaning that you can share documents and folders (collections) to specific set of users or groups with specific access (read-only, read-write, owner).
The Google Drive API doesn’t let you control the ACL but you can still use the Documents List API to accomplish that.