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  • Customizing ASP.NET Core 6.0
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Customizing ASP.NET Core 6.0

Customizing ASP.NET Core 6.0

By : Jürgen Gutsch
4 (6)
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Customizing ASP.NET Core 6.0

Customizing ASP.NET Core 6.0

4 (6)
By: Jürgen Gutsch

Overview of this book

ASP.NET Core is packed full of hidden features for building sophisticated web applications – but if you don’t know how to customize it, you’re not making the most of its capabilities. Customizing ASP.NET Core 6.0 is a book that will teach you all about tweaking the knobs at various layers and take experienced programmers’ skills to a new level. This updated second edition covers the latest features and changes in the .NET 6 LTS version, along with new insights and customization techniques for important topics such as authentication and authorization. You’ll also learn how to work with caches and change the default behavior of ASP.NET Core apps. This book will show you the essential concepts relating to tweaking the framework, such as configuration, dependency injection, routing, action filters, and more. As you progress, you'll be able to create custom solutions that meet the needs of your use case with ASP.NET Core. Later chapters will cover expert techniques and best practices for using the framework for your app development needs, from UI design to hosting. Finally, you'll focus on the new endpoint routing in ASP.NET Core to build custom endpoints and add third-party endpoints to your web apps for processing requests faster. By the end of this book, you'll be able to customize ASP.NET Core to develop better, more robust apps.
Table of Contents (18 chapters)
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Introducing ActionFilter

Action filters are a little bit like middleware because they can manipulate the input and the output but are executed immediately on a specific action or on all actions of a specific controller on the MVC layer, and MiddleWare works directly on the request object on the hosting layer. An ActionFilter class is created to execute code right before or after an action is executed. They are introduced to execute aspects that are not part of the actual action logic: authorization is one example of these aspects. AuthorizeAttribute is used to allow users or groups to access specific Actions or Controllers. AuthorizeAttribute is an ActionFilter. It checks whether the logged-on user is authorized or not. If not, it redirects to the login page.

Note

If you apply an ActionFilter globally, it executes on all actions in your application.

The next code sample shows the skeletons of a normal action filter and an async ActionFilter:

using Microsoft.AspNetCore...
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