WebApi configuration for json newtonsoft

WebApiConfig.cs

using System.Web.Http;
using Newtonsoft.Json;
using Newtonsoft.Json.Serialization;

namespace ViVi.Api
{
    public static class WebApiConfig
    {
        public static void Register(HttpConfiguration config)
        {
            // Web API configuration and services
            var formatters = GlobalConfiguration.Configuration.Formatters;
            var jsonFormatter = formatters.JsonFormatter;
            var settings = jsonFormatter.SerializerSettings;

            jsonFormatter.SerializerSettings.PreserveReferencesHandling = PreserveReferencesHandling.None;
            config.Formatters.Remove(config.Formatters.XmlFormatter);
            settings.Formatting = Formatting.Indented;
            settings.ContractResolver = new CamelCasePropertyNamesContractResolver();
            config.Formatters.JsonFormatter.SerializerSettings.ReferenceLoopHandling = ReferenceLoopHandling.Ignore;


            // Web API routes
            config.MapHttpAttributeRoutes();

            config.Routes.MapHttpRoute(
                name: "DefaultApi",
                routeTemplate: "api/{controller}/{id}",
                defaults: new { id = RouteParameter.Optional }
            );

        }
    }
}