Web API Registration Sitecore

1. RegisterWebApiRoute.cs

  public class RegisterWebApiRoute
    {
        public void Process(PipelineArgs args)
        {

            var config = GlobalConfiguration.Configuration;
            config.Routes.MapHttpRoute("DefaultApiRoute",
                                     "MikeAPI/{controller}/{action}/{id}",
                                     new { id = RouteParameter.Optional });

            var appXmlType = config.Formatters.XmlFormatter.SupportedMediaTypes.FirstOrDefault(t => t.MediaType == "application/xml");
            config.Formatters.XmlFormatter.SupportedMediaTypes.Remove(appXmlType);
            config.Formatters.JsonFormatter.SerializerSettings.Converters.Add(new IDConverter());
        }
    }

2. AbortSitecoreForKnownRoutes.cs

 public class AbortSitecoreForKnownRoutes : HttpRequestProcessor
    {
        public override void Process(HttpRequestArgs args)
        {
            var routeCollection = RouteTable.Routes;
            var routeData = routeCollection.GetRouteData(new HttpContextWrapper(args.Context));

            if (routeData == null || args.Url.ItemPath.Contains("api/sitecore")) return;

            HttpContext.Current.RemapHandler(routeData.RouteHandler.GetHttpHandler(HttpContext.Current.Request.RequestContext));
            args.AbortPipeline();
        }
    }

3. ID Converter.cs

public class IDConverter : JsonConverter
    {
        public override bool CanConvert(Type objectType)
        {
            return objectType == typeof(ID);
        }
        public override bool CanRead
        {
            get
            {
                return false;
            }
        }
        public override bool CanWrite
        {
            get
            {
                return true;
            }
        }

        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
        {
            var id = (ID)value;
            writer.WriteValue(id.ToString().Replace("{", "").Replace("}", "").ToUpperInvariant());
        }

        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
        {
            // the default deserialization works fine, 
            // but otherwise we'd handle that here
            throw new NotImplementedException();
        }
    }

4. patch include

<?xml version="1.0"?>
<configuration xmlns:patch="http://www.sitecore.net/xmlconfig/">
  <sitecore>

    <pipelines>
      <httpRequestBegin>
        <processor
          patch:after="processor[@type='Sitecore.Pipelines.HttpRequest.CustomHandlers, Sitecore.Kernel']"
          type="MikeRobbins.web.WebApi.AbortSitecoreForKnownRoutes, MikeRobbins.web"/>
      </httpRequestBegin>
      <initialize>
        <processor type="MikeRobbins.web.WebApi.RegisterWebApiRoute, MikeRobbins.web"/>
      </initialize>
    </pipelines>
 </sitecore>
 </configuration>