Book Image

ASP.NET Core MVC 2.0 Cookbook

By : Jason De Oliveira, Engin Polat, Stephane Belkheraz
Book Image

ASP.NET Core MVC 2.0 Cookbook

By: Jason De Oliveira, Engin Polat, Stephane Belkheraz

Overview of this book

The ASP.NET Core 2.0 Framework has been designed to meet all the needs of today’s web developers. It provides better control, support for test-driven development, and cleaner code. Moreover, it’s lightweight and allows you to run apps on Windows, OSX and Linux, making it the most popular web framework with modern day developers. This book takes a unique approach to web development, using real-world examples to guide you through problems with ASP.NET Core 2.0 web applications. It covers Visual Studio 2017- and ASP.NET Core 2.0-specifc changes and provides general MVC development recipes. It explores setting up .NET Core, Visual Studio 2017, Node.js modules, and NuGet. Next, it shows you how to work with Inversion of Control data pattern and caching. We explore everyday ASP.NET Core MVC 2.0 patterns and go beyond it into troubleshooting. Finally, we lead you through migrating, hosting, and deploying your code. By the end of the book, you’ll not only have explored every aspect of ASP.NET Core MVC 2.0, you’ll also have a reference you can keep coming back to whenever you need to get the job done.
Table of Contents (26 chapters)
Title Page
Copyright and Credits
Packt Upsell
Contributors
Preface
Index

Configuring content negotiation


In this recipe, you will learn how to manage content negotiation in ASP.NET Core. ASP.NET Core can return data in any format (such as JSON, XML, PLIST, and SOAP), thanks to ContentFormatters. More information can be found at https://docs.microsoft.com/en-us/aspnet/core/mvc/advanced/custom-formatters.

Any client can make a request with a header to tell the server in what format it wants the response. The server application can read a header value, and use it when creating a response to a request. Content negotiation is the name of whole process.

Getting ready

By default, ASP.NET Core will return JSON from action methods.

Let's get the code from the previous recipe, and let's see the result from GetAllProducts:

We get JSON values, because by default, ASP.NET Core doesn't take into account the Accept header the browser sent.

How to do it...

  1. First, let's add the following dependency in the project:
"Microsoft.AspNetCore.MVC.Formatters.Xml": "2.0.0"
  1. Next, let's add the...