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

Understanding the Operation Result Design Pattern

This chapter explores the Operation Result pattern, starting simple and progressing to more complex cases. An operation result aims at communicating the success or the failure of an operation to its caller. It also allows that operation to return both a value and one or more messages to the caller.

Imagine any system in which you want to display user-friendly error messages, achieve some small speed gain, or even handle failure easily and explicitly. The Operation Result design pattern can help you achieve these goals. One way to use it is to handle the result of a remote operation, such as after querying a remote web service.

This pattern builds upon foundational object-oriented programming concepts. Having a whole chapter about it allows us to iterate and design different possibilities incrementally. Of course, the final design should always be based on your needs, so learning multiple options should help you make the right...