cms_thermo_active/Step/App_Start/WebApiConfig.cs

using Newtonsoft.Json.Serialization;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web.Http;
using System.Web.Http.ExceptionHandling;

namespace Step
{
    public static class WebApiConfig
    {
        public static void Register(HttpConfiguration config)
        {
            // Web API configuration and services
            var form = config.Formatters.FormUrlEncodedFormatter;
            var xml = config.Formatters.XmlFormatter;
            var json = config.Formatters.JsonFormatter;

            config.Formatters.Remove(form);
            config.Formatters.Remove(xml);
            config.Formatters.Remove(json);

            config.Formatters.Add(json);
            config.Formatters.Add(xml);
            config.Formatters.Add(form);

            config.Formatters.JsonFormatter.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
            config.Formatters.JsonFormatter.SerializerSettings.ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore;

            config.EnableCors();
            config.Services.Replace(typeof(IExceptionHandler), new WebApiUnhandledExceptionHandler());

            // Web API routes
            config.MapHttpAttributeRoutes();

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