New: Use ASP.NET Core instead of Nancy

src/Radarr.Api.V3/Indexers/IndexerFlagController.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Microsoft.AspNetCore.Mvc;
+using NzbDrone.Core.Parser.Model;
+using Radarr.Http;
+
+namespace Radarr.Api.V3.Indexers
+{
+    [V3ApiController]
+    public class IndexerFlagController : Controller
+    {
+        [HttpGet]
+        public List<IndexerFlagResource> GetAll()
+        {
+            return Enum.GetValues(typeof(IndexerFlags)).Cast<IndexerFlags>().Select(f => new IndexerFlagResource
+            {
+                Id = (int)f,
+                Name = f.ToString()
+            }).ToList();
+        }
+    }
+}