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📌 Course Title:

Mastering Authentication in NestJS: Cookies, Sessions, Tokens, SSO, and OpenID Connect

📖 Course Description:

This course will teach you how to implement various authentication methods in NestJS, including cookie-based, session-based, JWT token authentication, Single Sign-On (SSO) with SAML, and OpenID Connect. You’ll build a secure authentication system and integrate it with OAuth providers like Google, Facebook, and Okta.

By the end of this course, you will have a real-world authentication system ready for production use.

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🚀 Course Outline

Module 1: Introduction to Authentication in Web Applications

🔹 What is authentication & authorization?

🔹 Understanding stateful vs. stateless authentication

🔹 Overview of authentication methods in NestJS

🔹 Setting up a NestJS project with TypeScript

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Module 2: Session-Based Authentication

🔹 How session-based authentication works

🔹 Storing sessions in memory, Redis, or database

🔹 Using express-session & connect-redis in NestJS

🔹 Implementing user login & session persistence

🔹 Handling session expiration & logout

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Module 3: Cookie-Based Authentication

🔹 What are cookies & how do they work?

🔹 Implementing cookie-based authentication in NestJS

🔹 Secure cookies: SameSite, HttpOnly, Secure flags

🔹 Implementing CSRF protection

🔹 Real-world example: User login system with cookies

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Module 4: Token-Based Authentication (JWT)

🔹 How JWT authentication works

🔹 Generating & validating JWT tokens

🔹 Implementing access & refresh tokens

🔹 Securing API routes with JWT guards & interceptors

🔹 Real-world example: User authentication with JWT

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Module 5: OAuth 2.0 & Social Logins (Google, Facebook, GitHub)

🔹 Understanding OAuth 2.0 & how it works

🔹 Setting up Google & Facebook authentication in NestJS

🔹 Implementing authentication with Passport.js

🔹 Storing user profiles & managing OAuth tokens

🔹 Real-world example: Social login with Google & Facebook

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Module 6: SAML-Based Single Sign-On (SSO)

🔹 What is SAML SSO and how does it work?

🔹 Setting up SAML authentication in NestJS

🔹 Integrating with Okta / Azure AD for SSO

🔹 Implementing SSO logout & session management

🔹 Real-world example: SSO login for enterprise applications

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Module 7: OpenID Connect (OIDC) with Keycloak & Okta

🔹 What is OpenID Connect (OIDC)?

🔹 Differences between OAuth 2.0 & OpenID Connect

🔹 Setting up Keycloak / Okta for OIDC authentication

🔹 Implementing role-based access control (RBAC)

🔹 Real-world example: Secure authentication with OIDC

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Module 8: Security Best Practices & Deployment

🔹 Common security vulnerabilities in authentication

🔹 Using HTTPS & Secure Headers in NestJS

🔹 Preventing token hijacking & session fixation attacks

🔹 Deploying authentication system to AWS / DigitalOcean

🔹 Final project: Building a complete authentication system

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📌 Final Project: Full-Stack Authentication System in NestJS

✅ Implementing multi-authentication strategies

✅ Securing an API with JWT, OAuth, & OIDC

✅ Connecting React/Vue frontend with NestJS backend

✅ Deploying authentication system to production

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