Book Image

Hands-On Domain-Driven Design with .NET Core

By : Alexey Zimarev
5 (1)
Book Image

Hands-On Domain-Driven Design with .NET Core

5 (1)
By: Alexey Zimarev

Overview of this book

Developers across the world are rapidly adopting DDD principles to deliver powerful results when writing software that deals with complex business requirements. This book will guide you in involving business stakeholders when choosing the software you are planning to build for them. By figuring out the temporal nature of behavior-driven domain models, you will be able to build leaner, more agile, and modular systems. You’ll begin by uncovering domain complexity and learn how to capture the behavioral aspects of the domain language. You will then learn about EventStorming and advance to creating a new project in .NET Core 2.1; you’ll also and write some code to transfer your events from sticky notes to C#. The book will show you how to use aggregates to handle commands and produce events. As you progress, you’ll get to grips with Bounded Contexts, Context Map, Event Sourcing, and CQRS. After translating domain models into executable C# code, you will create a frontend for your application using Vue.js. In addition to this, you’ll learn how to refactor your code and cover event versioning and migration essentials. By the end of this DDD book, you will have gained the confidence to implement the DDD approach in your organization and be able to explore new techniques that complement what you’ve learned from the book.
Table of Contents (14 chapters)

Implementing the Model

In previous chapters, we went through a different level of knowledge crunching and domain analysis. We used EventStorming as our primary tool, so, as a result of our efforts, we got plenty of paper rolls, with lots of colorful sticky notes on them. But how can we make some working code from it? That is a good question, and this is precisely what we will start doing when moving along in this chapter.

By the end of this chapter, we will have a basis for our domain model implemented in code. We will go through different styles of performing the behavior in domain entities and also write some tests.

The following topics will be covered:

  • Create a project for the domain model
  • Add domain objects to the new project
  • What the entities and value objects are
  • How to ensure that the domain model is always in a valid state