Chapter 9

1. The purpose of reactive design patterns is to provide system architects, engineers, and developers with the ability to create systems that are, at their core, responsive and scalable
2. Responsive, resilient, elastic, and message-driven
3. Asynchronous communication design pattern
4. Vertical scaling and horizontal scaling
5. Bounded queues
6. Circuit-breaker design pattern
7. Failure-handling design pattern
8. Idempotency design pattern
9. Publisher–subscriber design pattern
10. Self-containment design pattern