Hands On "AI Engineering"

Hands On "AI Engineering"

Day 44: User Authentication Flow

Building the Gateway to Your AI Quiz Platform

SystemDR's avatar
SystemDR
Nov 17, 2025
∙ Paid

What We’re Building Today

Today we’re implementing the critical authentication system that transforms our quiz platform from an open playground into a secure, personalized experience. We’ll build login/registration flows, implement JWT-based authentication, and create the foundation for user-specific quiz sessions.

Today’s Agenda:

  • JWT authentication architecture

  • React authentication components with state management

  • Secure token storage and API integration

  • Form validation and error handling

  • User session persistence


The Authentication Challenge in Distributed Systems

Authentication isn’t just about passwords - it’s about creating a stateless, scalable identity layer that works across microservices. When Netflix authenticates you, that token needs to work seamlessly across their recommendation engine, video streaming service, and billing system.

This post is for paid subscribers

Already a paid subscriber? Sign in
© 2025 AIE
Privacy ∙ Terms ∙ Collection notice
Start your SubstackGet the app
Substack is the home for great culture