Book Image

Domain-Driven Design with Golang

By : Matthew Boyle
4 (2)
Book Image

Domain-Driven Design with Golang

4 (2)
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)
Part 1: Introduction to Domain-Driven Design
Part 2: Real -World Domain-Driven Design with Golang

What do we mean when we say monolithic application?

A monolithic application, or monolith, is likely a term you have heard before, as it is probably the most popular pattern for developing an enterprise application. We call it a monolithic application if all the different components of the system are encapsulated into a single unit – for example, if the user interface, several domains, and infrastructure services are combined into a single deployable unit. The following figure illustrates this:

Figure 5.1 – Multiple services packed into a single application

Monolithic applications remain popular because of the following reasons:

  • They are simple to develop. All code and concerns exist in a single place, and you do not need to worry as much about the failures that can come with remote procedure calls in distributed systems (more on this in the next chapter).
  • They are simple to deploy. There is only one deployable, and its requirements...