In this chapter, we explored the reactive design pattern category and its individual design patterns of asynchronous communication, autoscaling, bounded queue, bulkhead, caching, circuit breaker, event-driven communication, fail-fast, failure-handling, fan-out, quickest reply, idempotency, monitoring, publisher-subscriber, self-containment, and stateless. We also reviewed use cases for the design patterns and how they can contribute to well-designed and-developed systems that are reactive to internal and external changes.

You now have the necessary knowledge of the Universal Modeling Language (UML), Object-Oriented Programming (OOP), and over 60 design patterns to enhance your software design and development capabilities.

The design patterns in this book are not time-bound and will remain valid for several decades to come.