Building a Unified Crypto Trading System: Node.js, RabbitMQ, and AWS

The article addresses the fragmentation problem in crypto markets, where each exchange has different APIs, data formats, and latency characteristics. It proposes a unified gateway architecture using Node.js, RabbitMQ, and AWS to normalize exchange data, aggregate real-time order books, and reliably execute algorithmic trading strategies. The design emphasizes a consistent abstraction layer that handles exchange-level inconsistencies, WebSocket ingestion, and data normalization pipelines.