Tech Shopping - E-commerce Platform

Overview

Tech Shopping is a scalable e-commerce platform built using a microservices architecture. This application demonstrates how to design and develop a high-performance, secure, and reliable online shopping platform. The project leverages a wide range of technologies, including Node.js, Express, MongoDB Atlas, PostgreSQL (AWS RDS), Redis, Docker, Nginx, RabbitMQ, and more.

Features

• User management with secure authentication and authorization
• Product listings and inventory management
• Shopping cart functionality with fast access using Redis
• Order creation and management
• Secure payment processing
• Email notifications for transactions and other user activities
• HTTPS support for secure data transmission

Services

• User Service: Manages user accounts, authentication, and authorization.
• Product Service: Handles product listings, details, and inventory.
• Cart Service: Manages the shopping cart functionality.
• Order Service: Manages order creation and order status tracking.
• Payment Service: Processes payments and transactions.
• Notification Service: Sends email notifications to users.

Architecture

The platform uses a microservices architecture with each service running in its own Docker container. Services communicate via RESTful APIs and RabbitMQ for asynchronous messaging. Nginx is used as a reverse proxy and load balancer to route traffic to the appropriate services.

Tech Stack

• Backend: Node.js, Express
• Database: MongoDB Atlas, PostgreSQL (AWS RDS)
• Cache: Redis
• Message Broker: RabbitMQ
• Containerization: Docker, Docker Compose
• Web Server: Nginx
• Email Service: Mailgun
• Hosting: AWS EC2

Installation

Prerequisites

• Docker and Docker Compose installed
• Node.js and npm installed
• MongoDB Atlas account
• AWS RDS instance for PostgreSQL
• Redis instance
• Mailgun account for email notifications

Steps

1. Clone the repository

   git clone https://github.com/Habeeb-MD/online-store-backend.git
   cd online-store-backend

2. Environment Variables

   Create a .env file in the root directory and configure the following environment variables:

   NODE_ENV=development
   JWT_SECRET=your_jwt_secret
   JWT_EXPIRES_IN=90d
   JWT_COOKIE_EXPIRES_IN=90
   MONGO_URI=mongodb+srv://username:password@cluster.mongodb.net/dbname
   POSTGRES_DB=your_postgres_db
   POSTGRES_USER=your_postgres_user
   POSTGRES_PASSWORD=your_postgres_password
   REDIS_HOST=your_redis_host
   MAILGUN_API_KEY=your_mailgun_api_key
   MAILGUN_DOMAIN=your_mailgun_domain

3. Build and Start Containers

   docker-compose up --build

4. Access the Application

   • The application will be available at http://your-ec2-public-ip
   • API documentation and endpoints can be accessed via Postman or similar tools.

Usage

• User Service: Provides endpoints for user registration, login, and profile management.
• Product Service: Manage products with CRUD operations.
• Cart Service: Add, remove, and view items in the shopping cart.
• Order Service: Place orders and check order status.
• Payment Service: Process payments securely.
• Notification Service: Receive email notifications for transactions and other activities.

Nginx Configuration

The Nginx configuration file (nginx.conf) is set up to route traffic to the appropriate services and handle SSL termination.

server {
    listen 80;
    server_name your_domain.com;

    location /auth {
        proxy_pass http://user_service:3000;
    }

    location /users {
        proxy_pass http://user_service:3000;
    }

    location /products {
        proxy_pass http://product_cart_service:3001;
    }

    location /cart {
        proxy_pass http://product_cart_service:3001;
    }

    location /orders {
        proxy_pass http://order_payment_service:3002;
    }

    location /payment {
        proxy_pass http://order_payment_service:3002;
    }

    location /notification {
        proxy_pass http://notification_service:3003;
    }
}