Copy the client id and client secret in config.json, and set up its values found in config-sample.json
Visit the Quick Access Token link below, and fill in acces_token in config.json, leave refresh_token blank - it will be updated when you authorize successfully
Set the port to any number higher than 1024, for reasons, however, if you have a domain set up, you will want to enable the port_exposed property, so it will be included in the redirect URI
Set the OAuth Redirect URI to http://localhost:443/auth/twitch/callback if locally testing, otherwise, use your IP or domain instead of localhost
Run examples/index.js
Visit http://localhost:443/auth/twitch to authorize