01 — Message Broker Patterns

Patterns

A book-shaped table of contents for reusable engineering patterns spanning object-oriented design, enterprise architecture, distributed systems, messaging, APIs, cloud infrastructure, observability, security, concurrency, AI/agentic systems, and organizational design — grounded in production experience at scale.

02 — Event Patterns

Event Notification vs. Event-Carried State Transfer, and Choreography vs. Orchestration — how services stay decoupled through events, building on the Event Sourcing and Saga patterns already covered in this book.

03 — Streaming Patterns

Windowing, Watermarks, and Exactly-Once vs. At-Least-Once vs. At-Most-Once delivery semantics — the vocabulary for reasoning about correctness in a stream processing pipeline.

Patterns

A book-shaped table of contents for reusable engineering patterns spanning object-oriented design, enterprise architecture, distributed systems, messaging, APIs, cloud infrastructure, observability, security, concurrency, AI/agentic systems, and organizational design — grounded in production experience at scale.

02 — Pattern Selection & Trade-offs

How to choose between competing patterns under real forces: naming the context, weighing trade-offs and consequences, composing multiple patterns together, and recognizing when a pattern has outlived its fit.