eCommerce Platform

The eCommerce Platform is a sophisticated web application built using microservices architecture to ensure scalability, flexibility, and maintainability at enterprise scale. This project demonstrates advanced backend development practices with real-time inventory management, secure payment processing, and comprehensive administrative capabilities.

Architecture & Design

Architected as a loosely coupled microservices system where each service handles a specific domain responsibility. This approach provides independent deployment capabilities, isolated scaling options, and fault tolerance. The system uses asynchronous communication patterns for non-blocking operations and maintains data consistency across services.

• User Authentication & Authorization: Secure JWT-based authentication with role-based access control (RBAC) supporting customers, sellers, and admins
• Product Catalog Management: Dynamic product listing with advanced filtering, search, categories, and inventory tracking
• Shopping Cart & Order Management: Persistent cart system with real-time stock validation and complete order lifecycle management
• Payment Processing: Razorpay payment gateway integration with webhook handling for transaction confirmation and failure management
• Admin Dashboard: Comprehensive analytics, customer management, order monitoring, product publishing controls, and business metrics
• Real-time Inventory: Live stock updates with automatic notifications when products are back in stock

Backend Services:

• Built with Node.js and Express.js for fast, non-blocking request handling
• MongoDB for flexible document-based data storage with excellent scalability
• RESTful API design patterns with comprehensive input validation and error handling
• Implemented caching strategies using Redis for performance optimization

Deployment & DevOps:

• Docker containerization for consistent development, staging, and production environments
• Docker Compose for local development orchestration
• Environment-based configuration management for different deployment stages
• Comprehensive logging and monitoring for production reliability

Development Practices:

• Agile methodology with 2-week sprints using Jira for project management
• Git version control with feature branch workflow
• Comprehensive API documentation using Postman collections
• Unit and integration testing for critical business logic

This project successfully delivered a production-ready eCommerce platform capable of handling high transaction volumes with minimal latency. The microservices architecture proved highly beneficial for scaling individual components independently based on demand.

Key Achievements:

• Successfully processed 10,000+ transactions with 99.9% uptime
• Reduced deployment time by 60% through Docker containerization
• Achieved sub-100ms API response times through caching and optimization
• Enabled 3+ independent teams to work on separate services simultaneously