Google Sheets API - How to authenticate without interaction with user and browser?

I have a nodejs API, and need to consume Google Sheets API V4 data to populate a database.

I've been looking at the documentation on how to do authentication, but all the way I found to authenticate, it is necessary to perform user interaction to get a refreshed token

I need a way to perform authentication without having to interact with the user and browser, can someone help me?

Documentation I'm following: https://developers.google.com/sheets/api/

Thanks!

via kellw