Desirilize something with newtonsoft json

example.cs

using Newtonsoft.JSON;

namespace JSONExample
{
  internal class Program
  {
    public static void main(string[] args)
    {
      Product product = new Product();

product.Name = "Apple";
product.ExpiryDate = new DateTime(2008, 12, 28);
product.Price = 3.99M;
product.Sizes = new string[] { "Small", "Medium", "Large" };
// C# -> json
string output = JsonConvert.SerializeObject(product);
//{
//  "Name": "Apple",
//  "ExpiryDate": "2008-12-28T00:00:00",
//  "Price": 3.99,
//  "Sizes": [
//    "Small",
//    "Medium",
//    "Large"
//  ]
//}
 /*
    JSON -> C#
    you must have a class existing 
 */
Product deserializedProduct = JsonConvert.DeserializeObject<Product>(output);