Read content of public shared file in Google Drive

I am working on a Google Drive application.

The application needs to read the contents of a publically shared file in someone's Google Drive.

How can I do this?

Is there an API to achieve this?

Can others see my Google Drive content?

Your files are private unless you choose to share them. You can share files with: One person or a few people using a link. Everyone by making the files public.

When using the Google Drive API, after setting the ACL of the file to be public you can directly access the file using the webContentLink attribute of the file metadata which should not require any authentication/authorization when the file is public.

This is a feil metadata example: https://developers.google.com/drive/v2/reference/files#resource

This is how to get the file metadata using common client libraries: https://developers.google.com/drive/v2/reference/files/get