Scalable E-commerce Backend (Microservices)

A scalable e-commerce platform built with microservices architecture. The platform provides comprehensive e-commerce functionality including user management, product catalog, shopping cart, order processing, payments, and notifications.

Project Link : https://roadmap.sh/projects/scalable-ecommerce-platform

Architecture Overview

---
title: E-commerce Microservices Architecture
---
graph TD
    Client --> Gateway[API Gateway/Nginx]
    Gateway --> UserService[User Service]
    Gateway --> ProductService[Product Service]
    Gateway --> CartService[Shopping Cart Service]
    Gateway --> OrderService[Order Service]
    Gateway --> PaymentService[Payment Service]
    Gateway --> NotificationService[Notification Service]
    
    PaymentService --> Stripe[Stripe API]
    NotificationService --> Email[NodeMailer]
    NotificationService --> SMS[Twilio]
    
    Monitoring[Prometheus/Grafana] --> Gateway
    Logging[ELK Stack] --> Gateway

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Features

Core Services

• User Service: Authentication, authorization, profile management
• Product Service: Catalog management, inventory, search
• Shopping Cart Service: Cart management, session handling
• Order Service: Order processing, status tracking
• Payment Service: Secure payment processing via Stripe
• Notification Service: Email/SMS notifications via NodeMailer/Twilio

Infrastructure

• API Gateway: Request routing and load balancing
• Monitoring: Real-time metrics and alerting
• Logging: Centralized logging with full-text search
• Containerization: Docker-based deployment
• CI/CD: Automated testing and deployment

Tech Stack

Backend

• Node.js/Express.js
• MongoDB with Mongoose ODM
• JWT for authentication
• bcrypt for password hashing

Infrastructure

• Docker & Docker Compose
• Nginx (API Gateway/Load Balancer)
• Stripe API

Monitoring & Logging

• Prometheus & Grafana
• ELK Stack (Elasticsearch, Logstash, Kibana)

Getting Started

Prerequisites

• Docker Engine 24.0+
• Docker Compose 2.20+
• Node.js 18+ (for local development)
• MongoDB 6.0+ (for local development)

Environment Setup

1. Clone the repository:

git clone https://github.com/Toheed07/Scalable-E-Commerce-Platform.git
cd Scalable-E-Commerce-Platform

2. Create and Configure environment files for each service.

Running the Application

Docker Deployment

# Start core services
docker compose up -d

# Start monitoring stack
cd monitoring
docker compose up -d

Service Endpoints

Service	Internal Port	External Port	Endpoint
API Gateway	80	8080	http://localhost:8080
User Service	4000	4000	/v1/api/users/*
Product Service	4001	4001	/v1/api/products/*
Cart Service	4002	4002	/v1/api/cart/*
Payment Service	4003	4003	/v1/api/payments/*
Order Service	4004	4004	/v1/api/orders/*
Notification Service	4005	4005	/v1/api/notification/*
Grafana	3000	3000	http://localhost:3000
Kibana	5601	5601	http://localhost:5601

Monitoring & Observability

Grafana Dashboards

• Access: http://localhost:3000
• Default credentials: admin/admin

Logging (ELK Stack)

• Kibana: http://localhost:5601

Contributing

Contributions are welcome! Please fork the repository and create a pull request with your changes.

Future Plans

• Kubernetes deployment support
• Message queue integration
• Enhanced analytics