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Domain-Driven Design with Golang

Domain-Driven Design with Golang

By : Matthew Boyle
4.4 (19)
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Domain-Driven Design with Golang

Domain-Driven Design with Golang

4.4 (19)
By: Matthew Boyle

Overview of this book

Domain-driven design (DDD) is one of the most sought-after skills in the industry. This book provides you with step-by-step explanations of essential concepts and practical examples that will see you introducing DDD in your Go projects in no time. Domain-Driven Design with Golang starts by helping you gain a basic understanding of DDD, and then covers all the important patterns, such as bounded context, ubiquitous language, and aggregates. The latter half of the book deals with the real-world implementation of DDD patterns and teaches you how to build two systems while applying DDD principles, which will be a valuable addition to your portfolio. Finally, you’ll find out how to build a microservice, along with learning how DDD-based microservices can be part of a greater distributed system. Although the focus of this book is Golang, by the end of this book you’ll be able to confidently use DDD patterns outside of Go and apply them to other languages and even distributed systems.
Table of Contents (13 chapters)
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1
Part 1: Introduction to Domain-Driven Design
6
Part 2: Real -World Domain-Driven Design with Golang

Understanding services

In DDD, we use a few different types of services to help us organize our code. These are application services, domain services, and infrastructure services. In this section, we will discuss all three services and when they are useful, starting with the domain service.

Domain services

Domain services are stateless operations within a domain that complete a certain activity. Sometimes, we will come across processes we cannot find a good way to model in an entity or value object; in these cases, it’s a good idea to use a domain service.

It is particularly tricky to outline rules to use domain services; however, some things that you should look out for are the following:

  • The code you are about to write performs a significant piece of business logic within one domain
  • You are transforming one domain object into another
  • You are taking the properties of two or more domain objects to calculate a value

Services should always be expressed...

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