Build an Online Auction Platform (Like eBay)
Design a real-time auction website where users can list items, participate in live bidding, win auctions, and track bidding histories dynamically.Unlike traditional e-commerce, auction platforms require real-time bidding, dynamic price updates, auto-bidding capabilities, and strict auction ending rules. Managing concurrency, handling bid conflicts, and ensuring fair auctions in a scalable system are unique challenges of building an online auction platform.
Create a platform where sellers list products with starting bids and auction durations. Buyers place live bids which update in real time using WebSockets. Users can set max auto-bids, receive outbid notifications, and participate in last-minute bid wars. Admins manage listings, auctions, payments, and disputes.
Real-Time Live Bidding
Allow users to see live bids, counter-bids, and real-time price updates instantly without page reloads.
Auto-Bidding and Maximum Bid Setting
Enable users to pre-set their maximum bid amount and automatically bid against other users until limits are reached.
Countdown Timers and Auction Expiry Handling
Show countdowns for auction endings, auto-close auctions, and notify winners instantly.
User Notification System
Send real-time notifications when users are outbid, win auctions, or auctions they're watching are ending soon.
Sellers list products for auction with starting prices and deadlines. Buyers participate in bidding wars. Bids are processed in real-time, and highest bidders win when timers expire. The system handles payment processing, order confirmations, and shipping status updates automatically.
- Sellers upload product details, images, starting bids, and auction durations.
- Buyers browse ongoing auctions and place live bids manually or set auto-bid maximums.
- WebSocket server updates bids across all connected clients in real time.
- Winning bidders complete payment through secure checkout immediately after auctions close.
- Order status tracking and dispute resolution modules manage post-auction flows.
Frontend Development
Next.js, React.js for auction browsing, live bidding interfaces, countdown timers, and notification popups
Backend Bidding Engine
Node.js (Express.js) with WebSocket or Socket.io server for managing real-time bid updates
Database and Bid Storage
MongoDB or PostgreSQL for storing auction items, user bids, bid histories, and order transactions
Payments and Notifications
Stripe/Razorpay for instant payment capture; Firebase Cloud Messaging or WebSocket-based notifications
1. Seller Listing and Auction Setup Module
Enable sellers to create auction listings, define starting bids, and auction ending times.
2. Real-Time Bidding Engine with WebSocket
Create WebSocket connections to broadcast bid updates instantly to all users viewing an auction.
3. Auto-Bid and Max-Bid Logic
Allow users to pre-set maximum bids and auto-counter-bid based on competing offers.
4. Auction Countdown Timers and Auction Closing
Implement real-time timers, and close auctions securely when the timer hits zero.
5. Payment Processing and Post-Auction Flow
Capture winning payments, generate invoices, send shipping instructions, and manage order tracking dashboards.
Ready to Build the Next Big Online Auction Platform?
Bring live bidding excitement to the web — start building your modern, scalable online auction website now!
Let's Ace Your Assignments Together!
Whether it's Machine Learning, Data Science, or Web Development, Collexa is here to support your academic journey.
"Collexa transformed my academic experience with their expert support and guidance."
Alfred M. Motsinger
Computer Science Student
Get a Free Consultation
Reach out to us for personalized academic assistance and take the next step towards success.