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ShopVerse Documentation 🛒

Welcome to ShopVerse — a scalable, event-driven e-commerce platform designed using modern backend architecture principles and built to simulate real-world production systems.

This documentation explains why ShopVerse exists, how it is designed, and how each part works together.

🚀 What is ShopVerse?​

ShopVerse is – Intelligent Event-Driven E-Commerce Platform built to handle authentication, product management, orders, payments, notifications, analytics, and recommendations in a decoupled and scalable way.

The project focuses on:

  • Real-world system design
  • Clean service boundaries
  • Secure authentication
  • Event-driven communication
  • Production-ready patterns

🎯 Why ShopVerse Was Built​

Most beginner projects focus only on CRUD operations.
ShopVerse was built to go beyond CRUD and demonstrate:

  • How large systems are actually designed
  • How services communicate safely and asynchronously
  • How to handle authentication and authorization at scale
  • How to design systems that are extensible and fault-tolerant

This project is intended to be:

  • 📌 Interview-ready
  • 📌 Portfolio-worthy
  • 📌 Industry-aligned

🧠 Key Design Goals​

  • Microservices Architecture
    Each domain (Auth, User, Product, Order, Payment, etc.) is an independent service.

  • Centralized Security
    Authentication and authorization are handled at the API Gateway using JWT.

  • Event-Driven Communication
    Apache Kafka is used for asynchronous workflows like notifications, analytics, and recommendations.

  • Loose Coupling & Scalability
    Services do not directly depend on each other’s databases.

  • Production Mindset
    Error handling, idempotency, soft deletes, optimistic locking, and role-based access control are implemented.

🏗️ High-Level Architecture​

🛠 Technology Stack​

Backend​

  • Java 21
  • Spring Boot
  • Spring WebFlux
  • Spring Security

Databases​

  • PostgreSQL (Transactional data)
  • MongoDB (Notifications, recommendations)

Messaging & Streaming​

  • Apache Kafka

Security​

  • JWT (JSON Web Tokens)
  • Role-Based Access Control (RBAC)
  • Gateway-level authentication

DevOps & Tooling​

  • Docker & Docker Compose
  • Git & GitHub
  • Docusaurus (Documentation)

📦 Services Overview​

ShopVerse consists of multiple independent services:

  • Auth Service – Login, registration, JWT issuance
  • User Service – User profiles and addresses
  • Product Service – Products, categories, inventory
  • Order Service – Order creation and lifecycle
  • Payment Service – Payment processing
  • Notification Service – User notifications
  • Analytics Service – Business metrics
  • Recommendation Service – Personalized suggestions

Each service is documented individually in this guide.

📘 How to Use This Documentation​

This documentation is structured to help you:

  • Understand the system design
  • Explore each microservice in isolation
  • Learn authentication & security flows
  • Review API contracts
  • Prepare for technical interviews

If you are new, start with:

  1. Getting Started
  2. Architecture Overview
  3. Authentication Flow
  4. Service-by-Service Deep Dive

👤 Author​

Kirtesh Satish Admute
Full-Stack Developer

Sangam Mundhe
Software Engineer

ShopVerse represents 1+ month of focused system design and implementation, built with an interview and production mindset.

📌 Note​

ShopVerse is an educational + portfolio project, but it follows real-world architectural practices used in modern backend systems.