OAuth — Study Resources & PYQs

Curated resources, past papers and PYQs for OAuth.

Study resources

An Introduction to OAuth 2 (Article) — DigitalOcean's widely-cited, clear introduction to how OAuth 2.0 actually works.
OAuth 2.0 and OpenID Connect In Plain English (Video) — OktaDev's well-regarded, plain-English explanation of how OAuth 2.0 actually flows.
The OAuth 2.0 Authorization Framework (Article) — The official OAuth community hub detailing authorization code grants, refresh tokens, and PKCE.