Java Backend Developer

E-Commerce Inventory System

Name: E-Commerce Inventory System
Author: Robert Grodzki

Spring Boot application implementing product catalog management, shopping cart functionality and JWT-based authentication. Demonstrates complex relational data modelling for hierarchical product structures with role-based access control.

Key features

Hierarchical product catalog: Brand → Category → Product → Details
Shopping cart with session persistence and quantity validation
JWT security flow: login → token issued → filter validation → RBAC authorization
Many-to-many user-role relationships with method-level security
REST API endpoints for catalog browsing, cart and order management
Admin CRUD interface for product and inventory management
Low-stock threshold alerts with inventory event logging
Order lifecycle tracking from cart to confirmed purchase

Technology stack

Java, Spring Boot, Spring Security, Spring Data JPA, JWT, MySQL, REST API

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