Use JSON.NET to generate JSON schema with extra attributes

Question

I am using JSON.NET to generate JSON Schema from c# object class. But I was unable to add any other json schema attributes e.g. maxLength, pattern(regex to validate email),

Answer 1

You could use the JavaScriptSerializer class.Like:

namespace ExtensionMethods
{
    public static class JSONHelper
    {
        public static string ToJSON(this object obj)
        {
            JavaScriptSerializer serializer = new JavaScriptSerializer();
            return serializer.Serialize(obj);
        }

        public static string ToJSON(this object obj, int recursionDepth)
        {
            JavaScriptSerializer serializer = new JavaScriptSerializer();
            serializer.RecursionLimit = recursionDepth;
            return serializer.Serialize(obj);
        }
    }
}

Use it like this:

using ExtensionMethods;

...

List people = new List{
                   new Person{ID = 1, FirstName = "Scott", LastName = "Gurthie"},
                   new Person{ID = 2, FirstName = "Bill", LastName = "Gates"}
                   };


string jsonString = people.ToJSON();

Read also this articles:

1. http://msdn.microsoft.com/en-us/library/system.web.script.serialization.javascriptserializer.aspx
2. http://weblogs.asp.net/scottgu/archive/2007/10/01/tip-trick-building-a-tojson-extension-method-using-net-3-5.aspx
3. http://www.asp.net/AJAX/Documentation/Live/mref/T_System_Web_Script_Serialization_JavaScriptSerializer.aspx

You can also try ServiceStack JsonSerializer

One example to use it:

 var customer = new Customer { Name="Joe Bloggs", Age=31 };
    var json = JsonSerializer.SerializeToString(customer);
    var fromJson = JsonSerializer.DeserializeFromString(json);