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)

Why Event Sourcing

In this section, we will not only discuss why one might want to use Event Sourcing—we will also look into the definition of this pattern and some history behind it. Like Greg Young often puts it, "Event Sourcing is not new", and we will get into some history that should help you to understand the concept better.

After that, we will get into the why part. Armed with some knowledge about its history, it won't be very hard to understand why this way of storing data is becoming more popular.

By the end of this section, we will make it clear why one might not want to use Event Sourcing in their system, and what challenges are awaiting those who start using it for the first time.

Issues with state persistence

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