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  • Book Overview & Buying The JavaScript JSON Cookbook
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The JavaScript JSON Cookbook

The JavaScript JSON Cookbook

By : Ray Rischpater
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The JavaScript JSON Cookbook

The JavaScript JSON Cookbook

1 (2)
By: Ray Rischpater

Overview of this book

If you're writing applications that move structured data from one place to another, this book is for you. This is especially true if you've been using XML to do the job because it's entirely possible that you could do much of the same work with less code and less data overhead in JSON. While the book's chapters make some distinction between the client and server sides of an application, it doesn't matter if you're a frontend, backend, or full-stack developer. The principles behind using JSON apply to both the client and the server, and in fact, developers who understand both sides of the equation generally craft the best applications.
Table of Contents (17 chapters)
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JavaScript JSON Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Using LINQ with Json.NET to query JSON in your C# application


If you're developing for .NET, you might just want to skip JSONPath entirely and use Json.NET's support to subscribe based on field name and support for LINQ. Json.NET supports LINQ out of the box, letting you craft any query you want against your JSON in either fluent or statement syntax.

Getting ready

As with the previous recipe, your .NET project needs to use Json.NET. To include Json.NET in your project, follow the steps I show you in Chapter 7, Using JSON in a Type-safe Manner, in the Getting Started section of the How to Deserialize an Object with Json.NET recipe.

How to do it…

You'll parse the JSON to JObject, and then you can just evaluate LINQ expressions against the resulting JObject, like this:

using System;
using System.Collections.Generic;
using System.Linq;
using Newtonsoft.Json.Linq;

static void Main(string[] args)
{
  var obj = JObject.Parse(json);
  var titles = from book in obj["store"]["book"] 
      select (string...

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