Book Image

An Atypical ASP.NET Core 6 Design Patterns Guide - Second Edition

By : Carl-Hugo Marcotte
5 (1)
Book Image

An Atypical ASP.NET Core 6 Design Patterns Guide - Second Edition

5 (1)
By: Carl-Hugo Marcotte

Overview of this book

An Atypical ASP.NET Core 6 Design Patterns Guide, Second Edition approaches programming like playing with LEGO®: snapping small pieces together to create something beautiful. Thoroughly updated for ASP.NET Core 6, with further coverage of microservices patterns, data contracts, and event-driven architecture, this book gives you the tools to build and glue reliable components together to improve your programmatic masterpieces. The chapters are organized based on scale and topic, allowing you to start small and build on a strong base, the same way that you would develop a program. You will begin by exploring basic design patterns, SOLID architectural principles, dependency injection, and other ASP.NET Core 6 mechanisms. You will explore component-scale patterns, and then move to higher level application-scale patterns and techniques to better structure your applications. Finally, you'll advance to the client side to connect the dots with tools like Blazor and make ASP.NET Core a viable full-stack web development framework. You will supplement your learning with practical use cases and best practices, exploring a range of significant Gang of Four (GoF) design patterns along the way. By the end of the book, you will be comfortable combining and implementing patterns in different ways, and crafting software solutions of any scale.
Table of Contents (31 chapters)
Preface
Free Chapter
1
Section 1: Principles and Methodologies
5
Section 2: Designing for ASP.NET Core
11
Section 3: Designing at Component Scale
15
Section 4: Designing at Application Scale
21
Section 5: Designing the Client Side
25
Acronyms Lexicon
26
Other Books You May Enjoy
27
Index
Appendices

Using MediatR as a mediator

In this section, we are exploring MediatR, an open source mediator implementation.

What is MediatR? Let’s start with its maker’s description from its GitHub repository, which brands it as this:

“Simple, unambitious mediator implementation in .NET”

MediatR is a simple but very powerful tool doing in-process communication through messaging. It supports a request/response flow through commands, queries, notifications, and events, synchronously and asynchronously.

You can install the NuGet package using the .NET CLI: dotnet add package MediatR.

Now that I have quickly introduced the tool, we are going to explore the migration of our Clean Architecture sample but instead use MediatR to dispatch the StocksController requests to the core use cases.

Why migrate our Clean Architecture sample? The primary reason we are building the same project using different models is for ease of comparison. It is...