This is a simple example implementation of Oauth 2.0 flow.

• https://developer.katanamrp.com/page/setting-up-oauth
• https://datatracker.ietf.org/doc/html/rfc6749

Disclaimer: You should never store the tokens without encrypting them nor show them to the customer.

• https://developers.google.com/identity/protocols/oauth2/resources/best-practices

How to run:

1. Fill out CLIENT_ID, CLIENT_SECRET
2. Change AUTHORIZATION_URL and TOKEN_URL to the ones provided to you
3. npm install
4. npm run start
5. login at http://localhost:3000/auth