Brandon Byars

Adopt a practical and modern approach to architecting and implementing DDD-inspired solutions to transform abstract business ideas into working software across the entire spectrum of the software development life cycleKey FeaturesImplement DDD principles to build simple, effective, and well-factored solutionsUse lightweight modeling techniques to arrive at a common collective understanding of the problem domainDecompose monolithic applications into loosely coupled, distributed components using modern design patternsBook DescriptionDomain-Driven Design (DDD) makes available a set of techniques and patterns that enable domain experts, architects, and developers to work together to decompose complex business problems into a set of well-factored, collaborating, and loosely coupled subsystems.This practical guide will help you as a developer and architect to put your knowledge to work in order to create elegant software designs that are enjoyable to work with and easy to reason about. You'll begin with an introduction to the concepts of domain-driven design and discover various ways to apply them in real-world scenarios. You'll also appreciate how DDD is extremely relevant when creating cloud native solutions that employ modern techniques such as event-driven microservices and fine-grained architectures. As you advance through the chapters, you'll get acquainted with core DDD's strategic design concepts such as the ubiquitous language, context maps, bounded contexts, and tactical design elements like aggregates and domain models and events. You'll understand how to apply modern, lightweight modeling techniques such as business value canvas, Wardley mapping, domain storytelling, and event storming, while also learning how to test-drive the system to create solutions that exhibit high degrees of internal quality.By the end of this software design book, you'll be able to architect, design, and implement robust, resilient, and performant distributed software solutions.What you will learnDiscover how to develop a shared understanding of the problem domainEstablish a clear demarcation between core and peripheral systemsIdentify how to evolve and decompose complex systems into well-factored componentsApply elaboration techniques like domain storytelling and event stormingImplement EDA, CQRS, event sourcing, and much moreDesign an ecosystem of cohesive, loosely coupled, and distributed microservicesTest-drive the implementation of an event-driven system in JavaGrasp how non-functional requirements influence bounded context decompositionsWho this book is forThis book is for intermediate Java programmers looking to upgrade their software engineering skills and adopt a collaborative and structured approach to designing complex software systems. Specifically, the book will assist senior developers and hands-on architects to gain a deeper understanding of domain-driven design and implement it in their organization. Familiarity with DDD techniques is not a prerequisite; however, working knowledge of Java is expected.

Description Microservices are independent, single-responsibility units of code that form a system with other microservices. It's difficult to test an individual microservice since each one depends on the other services. Mountebank solves this conundrum through service virtualization - imitating other components in the system so that you can test a microservice in isolation. Testing Microservices with Mountebank is your guide to the ins and outs of testing microservices with service virtualization. This book also explains using mountebank for load testing, in a continuous delivery pipeline, and more. Key features · Hands-on examples · Step-by-step guide · Clearly written Audience Readers need programming skills and should be generally familiar with SOA or microservice systems. About the technology Mountebank is the most capable service virtualization tool around, providing a programmable stand-in for a real dependency. As the only open-source virtualization tool with support for multiple protocols and scaling for load testing mountebank isn't snake oil; it's the cure-all for all your service virtualization needs. Author biography Brandon Byars is a principal consultant at ThoughtWorks with longstanding experience in SOA and microservices. He is the author and chief maintainer of Mountebank and has helped multiple companies use it for testing a variety of systems.