Node.js
TypeScript
PostgreSQL
Kafka
AWS
DineXpress
DineXpress is a Restaurant Management System that simplifies kitchen workflows, order management, QR-based table ordering, payments (cash/online), and real-time notification systems. It uses event-driven architecture backed by Kafka for smooth, real-time operations in restaurants.
Technologies
Platform
Web
Challenges
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Synchronizing orders, kitchen updates, and payments in real time across devices.
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Managing sudden spikes in orders during peak hours without server downtime.
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Handling different types of payments reliably (UPI, cards, cash).
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Ensuring Kafka event stream consistency for critical operations like order creation and update.
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Coordinating multiple kitchen stations for prioritizing and processing orders.
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Dynamically reflecting real-time menu and inventory changes to all users.
Solutions
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Implemented WebSocket + Kafka bridge for ultra-low latency updates across admin, kitchen, and cashier apps.
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Used AWS Load Balancers, Redis caching, and connection pools to handle peak loads.
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Built resilient, multi-step payment flows with retry logic and fallback options for transaction failures.
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Configured Kafka with idempotent producers and transactional consumers for exactly-once event processing.
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Created a dedicated Kitchen Display System (KDS) dashboard with real-time kitchen order tracking.
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Provided a real-time admin menu management panel synced instantly with user-facing apps and POS terminals.
Outcome
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