OAuth 2.0 Authorization Code Flow & OpenID Connect – Complete Walkthrough

Welcome! This video is a full breakdown of OAuth 2.0’s most secure flow — the Authorization Code Flow — along with the powerful identity layer that is OpenID Connect (OIDC).

We take you step-by-step through how apps can securely get access to user data without ever seeing passwords, and how OpenID Connect enables secure identity management using the ID Token.

👨‍💻 Whether you’re a backend engineer, security architect, or just diving into OAuth, this session will give you the full picture — with real HTTP examples, diagrams, a Python code snippet, and PKCE explained!

📚 What You’ll Learn

✅ The need for secure delegation
✅ Why Authorization Code Flow is preferred
✅ The role of OpenID Connect and ID Tokens
✅ How PKCE improves security for public clients
✅ How to make API requests using access tokens
✅ Best practices for token storage and CSRF protection
✅ Practical Python example of exchanging authorization codes for tokens