Expose the Datatype Service GetById

app/Umbraco/Umbraco.Archetype/Api/ArchetypeDataTypeController.cs

@@ -0,0 +1,29 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+using System.Web.Http;
+using AutoMapper;
+using Umbraco.Core.Models;
+using Umbraco.Web.Models.ContentEditing;
+using Umbraco.Web.Models.Mapping;
+using Umbraco.Web.Mvc;
+using Umbraco.Web.Editors;
+
+namespace Archetype.Umbraco.Api
+{
+    [PluginController("ArchetypeApi")]
+    public class ArchetypeDataTypeController : UmbracoAuthorizedJsonController
+    {
+        //pulled from the Core
+        public DataTypeDisplay GetById(int id)
+        {
+            var dataType = Services.DataTypeService.GetDataTypeDefinitionById(id);
+            if (dataType == null)
+            {
+                throw new HttpResponseException(HttpStatusCode.NotFound);
+            }
+            return Mapper.Map<IDataTypeDefinition, DataTypeDisplay>(dataType);
+        }
+    } 
+}

app/Umbraco/Umbraco.Archetype/Archetype.Umbraco.csproj

@@ -184,6 +184,7 @@
     </Reference>
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="Api\ArchetypeDataTypeController.cs" />
     <Compile Include="Constants.cs" />
     <Compile Include="Extensions\Extensions.cs" />
     <Compile Include="Models\Archetype.cs" />

app/resources/propertyeditor.js

@@ -12,7 +12,7 @@ angular.module('umbraco.resources').factory('archetypePropertyEditorResource', f
         },
         getDataType: function(id) {
         	return umbRequestHelper.resourcePromise(
-        		$http.get("/umbraco/backoffice/UmbracoApi/DataType/GetById?id=" + id), 'Failed to retrieve datatype'
+        		$http.get("/umbraco/backoffice/ArchetypeApi/ArchetypeDataType/GetById?id=" + id), 'Failed to retrieve datatype'
     		);
         },
         getPropertyEditorMapping: function(alias) {