I'd like to automatize some processes that are not yet available through API(Google Classroom), like posting comments on announcements, seeing private comments on my work and so on. I have trouble accessing my account. I'd like the app to be able to run on a server. I'm currently working with node.js, but if there is an easier approach I'll gladly accept it (free if it's possible). Can you give me an example of how it's done because currently, I am struggling to find every button that needs to be clicked on?
Unfortunately, there are no methods right now to accomplish that. You can leave a feature request on Google Issue Tracker describing what methods you would like to use. Google engineers will study your case and, if applicable, they will develop the requested methods.