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Case Study — 02
Lock Module
A secure authentication and access-control system with JWT-based sessions, role-based permissions, and audit logging.
Technology Stack
TypeScriptFastAPIPostgreSQLDockerREST APIs
The Problem
Applications required a repeatable, secure authentication layer with fine-grained permission control and full audit trails.
The Solution
Designed a reusable locks-and-permissions module with JWT authentication, role-based access control, and comprehensive audit logging.
Architecture
- JWT token-based authentication flow
- Role-based access control middleware
- PostgreSQL for user and permission storage
- Docker for isolated service deployment