registerApplication how it works

[mahomedalid]

I see that phanpy uses oauth, I want to use the same for my project, and I was wondering if I need to go and manually create the application in each instance. I found out the registerApplication method, but how this works, do the mastodon api requires authentication for registering the application?

phanpy/src/utils/auth.js

Line 26 in 51260b6

export async function registerApplication({ instanceURL }) {

[cheeaun]

It's documented here https://docs.joinmastodon.org/client/token/#app

And yes, one app for every instance.