Return camelCased JSON from Web API

Question

I\'m trying to return camel cased JSON from an ASP.Net Web API 2 controller. I created a new web application with just the ASP.Net MVC and Web API bits in it. I hijacked t

Answer 1

I was using Owin and DI (AutoFac in my case) so that throws another wrench into the works. My Startup.cs contains:

var apiconfig = new HttpConfiguration
{
    DependencyResolver = new AutofacWebApiDependencyResolver(container)
};
WebApiConfig.Register(apiconfig);

Then in my WebApiConfig.cs I have:

using System.Net.Http.Formatting;
using System.Net.Http.Headers;
using System.Web.Http;
using Microsoft.Owin.Security.OAuth;
using Newtonsoft.Json;
using Newtonsoft.Json.Serialization;

public static void Register(HttpConfiguration config)
    {
        // Web API routes
        config.MapHttpAttributeRoutes();

        //  Setup json.Net for pretty output, easy human reading AND this formatter
        //  does that ONLY for browsers - best of both worlds: useful AND efficient/performant!
        config.Formatters.Clear();
        config.Formatters.Add(new BrowserJsonFormatter());
    }

    public class BrowserJsonFormatter : JsonMediaTypeFormatter
    {
        //  Since most browser defaults do not include an "accept type" specifying json, this provides a work around
        //  Default to json over XML - any app that wants XML can ask specifically for it  ;)
        public BrowserJsonFormatter()
        {
            SupportedMediaTypes.Add(new MediaTypeHeaderValue("text/html"));
            SerializerSettings.Formatting = Formatting.Indented;
            SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
            // Convert all dates to UTC
            SerializerSettings.DateTimeZoneHandling = DateTimeZoneHandling.Utc;
        }

        //  Change the return type to json, as most browsers will format correctly with type as text/html
        public override void SetDefaultContentHeaders(Type type, HttpContentHeaders headers, MediaTypeHeaderValue mediaType)
        {
            base.SetDefaultContentHeaders(type, headers, mediaType);
            headers.ContentType = new MediaTypeHeaderValue("application/json");
        }
    }