I got a Client ID & Client Secret by filling out the form at:
https://developer.twitter.com/en/portal/projects/1390813879945502722/apps/20798409/auth-settings
I can never remember how to procure an auth token to act on behalf of another user. So, this time around, I decided I’d scriptify it for the next time.
https://developer.twitter.com/en/docs/authentication/oauth-1-0a
Using https://github.com/PLhery/node-twitter-api-v2
Consumer
Authentication Tokens
OAuth 2.0 Client ID and Client Secret