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Javaintermediateweb

Real-time Auction Platform

Real-time auction platform with Java Spring: live bidding, auto-bid, reserve price, countdown, and WebSocket notifications.

5 steps
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Project steps

  1. 01

    Auction model

    Auction(item, startPrice, reservePrice, endTime, status), Bid(amount, userId, timestamp).

  2. 02

    WebSocket bidding

    STOMP over WebSocket: BID message → validation → broadcast new price to all.

  3. 03

    Countdown & auto-end

    Spring Scheduler: extends by 2 min if bid in the last minute; ends auction on expiration.

  4. 04

    Auto-bid

    User sets max bid; system bids automatically incrementally.

  5. 05

    Winner notification

    Email and WebSocket notification to winner and outbid users.

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Ready to build this?

Fork the repo on GitHub and start building. A mentor will review your code when you open a PR.

5 steps

Tech stack

JavaSpring BootWebSocketPostgreSQLRedisThymeleaf