I want to create a plugin that calls an API from another server to authenticate users and allows them to log in or not. Can I do that, or do you have any plugins recommended?

I new to Nodebb and now I want to custom plugin by using quickstart plugin but admin.js and main.js seem not work properly and I have no idea what I do wrong. Can any one tell me where I should check first?
fyi: I just install quickstart, only change info in package.json and try to test it