OAuth2 & OIDC Explained Simply | Access Tokens, ID Tokens, & Keycloak Analogy

Understand OAuth2 and OpenID Connect (OIDC) without getting bogged down in confusing jargon! GIT : https://github.com/binitdatta/college... In this video, we break down core Identity and Access Management (IAM) concepts using a real-world office building analogy. You'll learn how the core actors work, how different tokens interact, and why mastering these protocols is one of the most valuable career investments for developers. 🕒 Timestamps: 00:00 – Why Learning OAuth2 & OIDC is Essential for Your Career 02:22 – The Office Building Analogy (Understanding OAuth2 Simply) 03:31 – The 4 Core Actors: Resource Owner, Client, Auth Server & Resource Server 07:07 – OAuth2 vs. OIDC: What’s the Difference? 09:18 – Access Token vs. ID Token vs. Refresh Token 11:14 – Why Use 3 Different Tokens? (Blast Radius & Security) 11:52 – Authentication vs. Authorization Explained 12:50 – Identity Providers (IdP) & Keycloak Realms 14:39 – Clients, Scopes, Claims, and Grant Types (PKCE, JWT) 17:08 – SSO, Sessions, and Cookie vs. Token 18:30 – The Complete Step-by-Step Auth Flow