Day 11: Building Your First Role-Based Access Control System

Complete Implementation Guide for Distributed Systems

📋 Today's Learning Agenda

What We're Building:

• Role and Permission data models with SQLAlchemy

• RBAC decorators for endpoint protection

• Permission checking logic with Redis caching

• Admin user management interface

• Role assignment functionality

• Production-ready authentication system

Key Implementation Areas:

• Database design for scalable RBAC

• JWT-based authentication flow

• Multi-tier caching strategy

• RESTful API with FastAPI

• Security testing and validation

• Docker deployment configuration

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Why RBAC Matters in Real Systems

Every system you use daily relies on RBAC. When you post on Instagram but can't delete someone else's account, that's RBAC. When your teacher can grade assignments but students can only submit them, that's RBAC protecting the system boundaries.

In distributed systems processing millions of requests, RBAC isn't just about security - it's about system stability. Without proper access controls, one misconfigured user could accidentally trigger a cascade that brings down your entire log processing pipeline.