I wanted to share with you a free chapter from my latest book, “Advanced Web Application Architecture”. I’ve picked Chapter 11, which gives a compact overview of all the design patterns that are useful for structuring your web application in a way that will (almost) automatically make it independent of surrounding infrastructure, including the web framework you use.

Chapter 11 is the first chapter of Part II of the book. In Part I we’ve been discovering these design patterns by refactoring different areas of a simple web application. Part II provides some higher-level concepts that can help you structure your application. Besides design patterns, it covers architectural layering, and hexagonal architecture (ports & adapters). It also includes a chapter on testing decoupled applications.