소개
Master the complexities of building and scaling distributed systems with this comprehensive guide to Express.js microservices. It provides professional-grade implementation patterns for mission-critical components—including API gateways, service discovery, and circuit breakers—alongside robust strategies for error handling, request validation, and observability. Whether you are migrating a monolith or building a cloud-native backend from scratch, this skill equips you with the architectural patterns and security best practices needed to deliver resilient, high-performance Node.js applications at scale.