SME E-commerce App (Case Study: Jiji)

An enterprise-grade Spring Boot e-commerce backend application inspired by Jiji, designed for Small and Medium-sized Enterprises (SMEs). This app provides a secure, scalable backend API for sellers and buyers to interact, manage products, handle orders, and support multi-role access.

📦 Tech Stack

• Java 21
• Spring Boot 3
• Spring Data MongoDB
• JWT Authentication
• Maven
• Lombok
• Postman (for API testing)

🧩 Features

User Management

• User Registration (Buyer, Seller)
• JWT-based Authentication & Authorization
• Role-based Access Control

Product Management

• Seller Product Creation (with image upload)
• Product Update & Deletion
• Search and Filter Products
• View Product Details

Order & Transaction

• Place Orders
• View Order History
• Buyer-Seller Communication (coming soon)

Admin Dashboard (Planned)

• Monitor Users
• Review Products & Transactions

📁 Project Structure

🧪 Testing the API

1. Import the Postman collection (postman_collection.json) into your Postman.

2. Use the following base URL:

3. Example endpoints:

   • POST /auth/register – Register user
   • POST /auth/login – Login and get JWT token
   • POST /products – Create product (SELLER only)
   • GET /products – View all products
   • POST /orders – Place order (BUYER only)

📚 Case Study: Jiji This project is modeled after Jiji’s marketplace:

Multiple Sellers & Products

Chat functionality (planned)

Product Search & Filters

Seamless Buyer-Seller Transactions

👨‍💻 Contributors Idowu Moses Babatunde @mosesidowu5050 Oderinde Suliha @oderindesuliha Eric Alli-balogun @Ericallibalogun