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Project Overview
CraveRush is a modern, mobile-first food delivery platform. It embraces an event-driven microservices architecture to handle high concurrency during peak dining hours. Equipped with polyglot persistence, real-time messaging, and secure payments, it serves as a robust example of enterprise scalability.
The Challenge
Monolithic food delivery apps frequently experience database bottlenecks and fault cascades when order volume spikes. CraveRush required a decoupled structure where a failure in the recommendation engine or inventory service would not disrupt the core checkout and payment flow.
Our Solution
We designed an event-driven architecture relying on Apache Kafka for asynchronous communication between Spring Boot microservices. The presentation layer is a React SPA utilizing Zustand and React Query. The backend employs Polyglot Persistence, mixing PostgreSQL for ACID transactions (orders/payments) and MongoDB for document storage (menus). A Dockerized dev stack with Zipkin tracing guarantees fault isolation and high observability.
Tech Stack
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