It looks like it's not possible to automaticaly authenticate in Google API version 3 with a usermail and a password. You need to open a webpage and authenticate in the browser. I need to authenticate automatically many users with credentials saved in a database. Is this possible? Possible solutions i considered are the following:•Authorize with oAuth2 but refresh the security tokens frequently, so you only need to authenticate once. •Use a GUI-Automation ToolAre there more and bether solutions for this?