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Canteeno

LIVE

A full-stack backend application handling high-concurrency food ordering and cafeteria management.

GitHub Repository Live Demo
Canteeno

Overview

Canteeno is a live production system designed to process university cafeteria orders efficiently. It handles user authentication, live inventory management, transactional order processing, and real-time status updates via a decoupled API architecture.

Why I built this

Cafeteria lines were a massive bottleneck causing students to waste time. The goal was to build a system that could handle burst traffic during lunch hours without dropping orders or miscalculating inventory.

Engineering Challenges

  • Database consistency during high-concurrency concurrent order placements
  • Caching menu inventory in Redis while ensuring checkout validates against the source of truth
  • Designing a robust REST API capable of serving multiple client interfaces

What I learned

Caching is critical for read-heavy operations, but state mutation (like checkout) must always fall back to ACID transactions.

Stack

Node.jsNode.jsExpressExpressMongoDBMongoDBRedisRedisREST APIsReactReactDockerDockerAWS