Luxor Bidding System - Full-Stack Implementation

[omayconaguiar]

Luxor Bidding System - Full-Stack Implementation

🎥 Demo

📹 Watch Application Demo

📋 Summary

Complete implementation of the Luxor bidding system challenge with NestJS backend and Next.js frontend.

🔄 Changes Made

Backend (frontend-coding-challenge/)

• ✅ Authentication: JWT-based auth with login/register/profile
• ✅ Collections API: CRUD with ownership validation
• ✅ Bids API: Create, accept/reject with auto-rejection logic
• ✅ Database: PostgreSQL + Prisma with 100+ collections, 1000+ bids
• ✅ Documentation: Swagger at /api/swagger

Frontend (bidding-system/)

• ✅ Auth Flow: Login/register with JWT management
• ✅ Collections UI: Browse, create, edit with pagination (10/page)
• ✅ Bidding UI: Place, edit, accept/reject bids
• ✅ Responsive Design: Mobile-friendly with Tailwind CSS
• ✅ Real-time Updates: Optimistic updates without refreshes

🔑 Key Features Implemented

• Business Rules: Can't bid on own collections, one pending bid per user/collection
• Auto-rejection: Accepting a bid rejects all other pending bids
• Ownership Control: Users can only modify their own resources
• Error Handling: Comprehensive validation and user feedback

🧪 How to Test

1. Start Backend: cd backend && npm install && npm run db:seed && npm run start:dev
2. Start Frontend: cd frontend && npm install && npm run dev
3. Login: Use user1@example.com / password123
4. Test Flow: Browse collections → Place bid → Accept/reject as owner

📊 Technical Highlights

• Architecture: Clean separation with proper validation layers
• Performance: Client-side pagination, optimistic updates
• Security: JWT protection, input validation, ownership checks
• UX: No page refreshes, instant feedback, mobile-responsive

📁 File Structure