Case Study: Laravel Courses Platform

🎯 Problem Statement

Educational platforms require distinct user roles (Instructors, Students, Admins) with overlapping access but strict boundary controls. The goal was to build a dynamic course management system that scales securely.

🏗️ Architecture Overview

Built as a monolithic Laravel application with a strong focus on modular service design and rich Eloquent relationships.

• Controllers: Kept thin by moving business logic into Service classes.
• Views: Blade templating system.
• Storage: Local filesystem for course assets, mapped securely via database records.

🛠️ Tech Stack

• Framework: Laravel
• Database: MySQL
• Frontend: HTML, CSS, JavaScript, Blade

🔒 Security Considerations

• Authorization: Extensive use of Laravel Policies and Gates to ensure users can only modify courses they own.
• File Upload Security: Strict MIME-type validation and isolated storage paths for uploaded course materials to prevent remote code execution.
• Input Sanitization: All user input, especially course descriptions, sanitized to prevent Stored XSS.

🧩 Challenges Solved

1. Complex Relationships: Managed polymorphic relationships for course reviews and comments.
2. Media Delivery: Implemented secure streaming routes for course videos, ensuring only enrolled students have access.

📈 Lessons Learned

The project demonstrated the power of Laravel’s built-in authorization features and the necessity of secure file handling in modern web applications.

View Source on GitHub