JSON in .NET with Newtonsoft.Json

Introduction#

The NuGet package Newtonsoft.Json has become the defacto standard for using and manipulating JSON formatted text and objects in .NET. It is a robust tool that is fast, and easy to use.

Serialize object into JSON

using Newtonsoft.Json;

var obj = new Person
{
    Name = "Joe Smith",
    Age = 21
};
var serializedJson = JsonConvert.SerializeObject(obj);

This results in this JSON: {"Name":"Joe Smith","Age":21}

Deserialize an object from JSON text

var json = "{\"Name\":\"Joe Smith\",\"Age\":21}";
var person = JsonConvert.DeserializeObject<Person>(json);

This yields a Person object with Name “Joe Smith” and Age 21.