Node.js Design Patterns for Scalable Backends

A single Node.js process uses one CPU core. Scaling to the other cores — and to the many machines behind a load balancer — requires a specific set of patterns: streams with backpressure, typed errors with circuit breakers, cluster and worker threads, connection pools, cache-aside, sagas, and end-to-end observability.

This book teaches those patterns from the event loop up. You will start with what ...