WebApi + ClientApp, GraphQL, Reflection

Events-WebApi/Events.WebAPI/Util/Extensions/AddJsonPatchSupportExtension.cs

@@ -0,0 +1,32 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.Formatters;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
+
+namespace Events.WebAPI.Util.Extensions;
+
+public static class AddJsonPatchSupportExtension
+{
+  public static void AddJsonPatchSupport(this MvcOptions options)
+  {
+    options.InputFormatters.Insert(0, GetJsonPatchInputFormatter());
+  }
+
+  // Add Newtonsoft only to the JSON Patch formatter so the rest of the API keeps System.Text.Json.
+  private static NewtonsoftJsonPatchInputFormatter GetJsonPatchInputFormatter()
+  {
+    var builder = new ServiceCollection()
+      .AddLogging()
+      .AddControllers()
+      .AddNewtonsoftJson()
+      .Services
+      .BuildServiceProvider();
+
+    return builder
+      .GetRequiredService<IOptions<MvcOptions>>()
+      .Value
+      .InputFormatters
+      .OfType<NewtonsoftJsonPatchInputFormatter>()
+      .First();
+  }
+}