This article was originally published on AI Study Room . For the full version with working code examples and related articles, visit the original post. API Gateway Security Patterns API Gateway Security Patterns API Gateway Security Patterns API Gateway Security Patterns API Gateway Security Patterns API Gateway Security Patterns API Gateway Security Patterns API Gateway Security Patterns API Gateway Security Patterns API Gateway Security Patterns The API Gateway as Security Perimeter An API gateway acts as the single entry point for all client-to-service communication in a microservices architecture. It is uniquely positioned to enforce security policies centrally, reducing complexity in individual services and providing a consistent security layer. Core Security Functions Authentication and Authorization The gateway validates tokens before requests reach backend services, offloading this responsibility from individual services.…