Auction Platform – Backend (Spring Boot)

Frontend (React) → REST API → Spring Boot → MySQL Database

This is the backend service for the Auction Platform.
It is built using Spring Boot and follows a layered architecture (Controller → Service → Repository).

The backend handles authentication, bidding logic, auction management, role-based access control, and payment verification.

🚀 Features

🔐 Authentication & Security

• JWT-based authentication
• Google OAuth 2.0 Login integration
• Role-based authorization (User / Seller / Admin)
• Password encryption using BCrypt
• Secure REST APIs using Spring Security

🛍 Auction Management

• Create, update, delete auctions
• View all auction listings
• View auction details
• Automatic auction status update (Active / Closed / Expired)

💰 Bidding System

• Place bids on active auctions
• Validates bid amount (cannot bid lower than highest bid)
• Tracks highest bidder
• Maintains bidding history

🛒 Seller Management

• Sellers can manage their own auctions
• View bids on their products
• Track auction performance

🛠 Admin Controls

• Manage users
• Manage auctions
• Monitor platform activity

💳 Payment Integration

• Razorpay payment verification
• Secure transaction handling

🧠 Backend Responsibilities

• Handles business logic
• Validates bidding rules
• Manages users & roles
• Secures APIs using JWT
• Connects to MySQL database
• Schedules automatic auction updates
• Global exception handling

🧑🏽‍💻Tech Stack

• Java 17

• Spring Boot

• Spring Security

• JWT Authentication

• OAuth2 (Google Login)

• MySQL / TiDB(Cloud Database Deployment)

• Maven

• Render (Deployment)

  Frontend Repository