So I went ahead and set up the example OAuth application from Github and it's working fine...except that I have to manually choose a "base" via the "add a base" button. But when I try to automatically approve this via Matillion ETL, I never get the option. I wonder if that's part of why? Also, I don't seem to see a place for the code or code_verifier (in the Matillion ETL OAuth setup interface).
Are those required?