Lootamo - Project Documentation

Project Overview

Lootamo is a comprehensive e-commerce platform specialized in digital game key distribution and software licensing. The platform integrates with the G2A API for product catalog synchronization and license key fulfillment, providing a complete solution for digital product sales with automated inventory management, secure payment processing through Stripe, and instant digital delivery.

The backend is built with FastAPI and PostgreSQL, featuring advanced role-based access control (RBAC), OAuth social authentication, automated product synchronization, and intelligent order fulfillment workflows with retry mechanisms.

Key Features

Backend Development

Authentication & Authorization

Implemented complete JWT-based authentication with access and refresh token management
Developed OAuth integration for Google and Facebook with account linking
Built a role-based access control (RBAC) system with four distinct user roles
Created secure password reset and email verification workflows
Integrated Redis-based session management for improved performance

G2A API Integration

Developed comprehensive integration with G2A API for product catalog synchronization
Implemented paginated product fetching with retry logic and error handling
Built automated sync workflows using APScheduler for scheduled updates
Created detailed sync logging system to track performance and issues
Designed database schema for products, categories, images, videos, and system requirements

Payment Processing

Integrated Stripe payment processing via Payment Intents API
Implemented webhook handling for automated payment confirmation
Built complete order fulfillment workflow using G2A order creation and payment APIs
Developed intelligent retry mechanism for delayed license key availability (ORD03)
Added multi-item order support with parallel license key processing
Implemented order expiration system for unpaid orders (24-hour timeout)

Email Notification

Built a queue-based email delivery system with background worker
Designed professional HTML email templates using Jinja2
Implemented retry logic for failed email deliveries
Developed email services for welcome emails, password resets, and license key delivery

Database Architecture

Designed PostgreSQL database schema using SQLAlchemy 2.0 (async ORM)
Created models for users, products, orders, wishlist, cart, and related entities
Implemented efficient relationships, indexing, and query optimization
Built Alembic-based migration system for database versioning

API Development

Designed and implemented RESTful API endpoints for all core features
Generated comprehensive API documentation (Swagger / ReDoc)
Implemented request validation via Pydantic schemas
Built middleware for rate limiting, CORS, security, and logging

Frontend Development

Admin Dashboard

Built a complete admin interface with multiple management modules
Implemented user management with activation/deactivation features
Developed order monitoring with advanced filtering and search
Created payment tracking panels showing real-time transaction details
Built analytics dashboard with charts and detailed metrics
Added scheduler configuration UI for product sync management
Developed sync logs viewer with detailed history and timestamps

Customer Experience

Implemented product listings with filtering, sorting, and pagination
Built a dynamic shopping cart with quantity management and bulk operations
Created a wishlist system for saved items
Developed full checkout flow with Stripe integration
Built order history and license key retrieval pages
Implemented user profile management including avatar upload

Authentication UI

Designed registration and login flows with validation
Implemented OAuth buttons for Google and Facebook
Built password reset and email verification interfaces
Added UI for account linking with social providers

State Management

Developed React Context providers for authentication, cart, and wishlist
Implemented persistent state via localStorage
Built custom hooks for API calls, forms, and UI logic

Security & Performance

Security Implementation

Implemented rate limiting using Redis backend
Configured CORS with domain whitelisting
Added strict input validation and sanitization across all endpoints
Implemented secure JWT token handling and refresh token flow
Ensured SQL injection safety via parameterized ORM queries
Built encrypted session security with Redis

Performance Optimization

Optimized queries with indexes, eager/lazy loading strategies
Implemented pagination for high-volume datasets
Added Redis caching for frequently accessed resources
Used async/await extensively for high concurrency
Reduced payload size by selecting only required fields in API responses

DevOps & Monitoring

Logging & Monitoring

Implemented a centralized logging system for backend operations
Created sync history logs with performance metrics
Built error tracking and debugging utilities
Developed audit trail for sensitive and critical changes

Scheduler Service

Integrated APScheduler for background scheduled tasks
Implemented configurable sync intervals (hourly, daily, manual)
Added job monitoring and status tracking
Built admin controls for rescheduling tasks

Testing & Quality Assurance

Ensured high code quality with extensive type hints and documentation
Followed clean code principles and modular architecture
Implemented robust error handling and graceful fallback behavior
Designed user-friendly error messages and notification feedback systems

Technology Stack

FastAPI Next.js Typescript PostgreSQL Google OAuth Meta OAuth G2A APIs Stripe Sendgrid API SEO DigitalOcean

Project Screenshots

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Live Demo

Role & Responsibilities

Designed and implemented the FastAPI backend with JWT authentication, OAuth social login, and advanced role-based access control (RBAC).
Developed G2A API integration for product catalog synchronization and automated license key fulfillment with retry workflows.
Built secure Stripe payment flows with webhook handling, order expiration logic, and multi-item order support.
Created a queue-based email notification system with professional HTML templates for account and order communications.
Developed the React frontend, including admin dashboards, analytics panels, and customer-facing features like product listings, cart, wishlist, and checkout.
Optimized performance with Redis caching, async queries, and pagination, ensuring scalability under high concurrency.
Configured DevOps workflows with APScheduler for background tasks, centralized logging, and monitoring for sync operations.

Technical Challenges & Solutions

Reliable Product Synchronization & Order Fulfillment

Challenge:Ensuring accurate catalog sync and timely license key delivery despite API delays or failures.

Solution:Implemented APScheduler-based sync jobs with retry logic, detailed logging, and intelligent fallback workflows to guarantee product accuracy and successful order fulfillment.

Secure Payments & High-Concurrency Performance

Challenge:Handling secure Stripe transactions while supporting high-volume concurrent requests.

Solution:Integrated Stripe Payment Intents API with webhook validation, added Redis caching and async query optimization, and enforced strict input validation to maintain both speed and security.

Project Impact

Lootamo delivered a robust e-commerce solution for digital game keys and software licensing, combining automated product sync, secure payments, and instant digital delivery. The platform reduced manual inventory management, improved transaction reliability, and enhanced customer experience with responsive design and real-time order tracking. By integrating advanced monitoring and performance optimizations, Lootamo provided a scalable foundation for digital commerce growth.