Quezeous Studio - Full-Stack E-commerce Store

Overview

A full-stack e-commerce platform built with Next.js and Firebase, featuring a customer storefront, a secure admin dashboard, and comprehensive Google Analytics 4 integration.

The problem

Create a seamless online shopping experience for customers while providing robust management tools for administrators.

What I built

Developed a complete e-commerce solution featuring real-time inventory management, a secure shopping cart with Cash on Delivery support, and an automated order management system with unique ID generation.

Results

• Successfully launched a dual-facing platform (storefront and admin portal) with persistent cart state management and secure checkout.
• Achieved enhanced search engine visibility through advanced technical SEO and structured data implementation.
• Streamlined backend code maintainability and type safety by standardizing on TypeScript and a service-oriented pattern.

Technical notes

Architecture

Utilized the Next.js App Router with React Server/Client Components for optimized rendering, coupled with a robust service-layer architecture to abstract all Firebase backend operations.

Technical decisions

• Implemented a service-layer architecture pattern. To cleanly abstract Firestore, Auth, and Storage operations, ensuring high code maintainability and strict separation of concerns across the large-scale application.
• Integrated Google Analytics 4 with custom e-commerce event tracking. To accurately capture user interactions, purchases, and cart behaviors for targeted conversion analytics and business optimization.

Challenges and fixes

• Maximizing organic search visibility for a highly dynamic product catalog. Engineered a comprehensive technical SEO strategy including dynamic metadata generation, structured data (JSON-LD), XML sitemaps, and Open Graph tags.
• Securing administrative tools and preventing unauthorized catalog or order modifications. Built a secure authentication system utilizing Firebase Auth coupled with strict Firebase security rules and role-based access control (RBAC).