Reactive and Non-Blocking Communication Models With the rise of reactive programming (e.g., ReactiveX, Project Reactor), patterns emphasizing non-blocking, backpressure-aware communication models are becoming more significant, especially in high-performance, scalable systems. Service Mesh Patterns Microservice architectures often employ Service Mesh components (e.g., Istio, Linkerd) for traffic management, security (mutual TLS), and observability. These patterns abstract service-to-service…