fix patch example. (#517)

Author: brendandburns

examples/patch/Program.cs

@@ -1,9 +1,7 @@
 using System;
-using System.Collections.Generic;
 using System.Linq;
 using k8s;
 using k8s.Models;
-using Microsoft.AspNetCore.JsonPatch;
 
 namespace patch
 {
@@ -16,21 +14,25 @@ private static void Main(string[] args)
             Console.WriteLine("Starting Request!");
 
             var pod = client.ListNamespacedPod("default").Items.First();
-
             var name = pod.Metadata.Name;
             PrintLabels(pod);
 
-            var newlabels = new Dictionary<string, string>(pod.Metadata.Labels) { ["test"] = "test" };
-            var patch = new JsonPatchDocument<V1Pod>();
-            patch.Replace(e => e.Metadata.Labels, newlabels);
-            client.PatchNamespacedPod(new V1Patch(patch), name, "default");
+            var patchStr = @"
+{
+    ""metadata"": {
+        ""labels"": {
+            ""test"": ""test""
+        }
+    }
+}";
 
+            client.PatchNamespacedPod(new V1Patch(patchStr, V1Patch.PatchType.MergePatch), name, "default");
             PrintLabels(client.ReadNamespacedPod(name, "default"));
         }
 
         private static void PrintLabels(V1Pod pod)
         {
-            Console.WriteLine($"Lables: for {pod.Metadata.Name}");
+            Console.WriteLine($"Labels: for {pod.Metadata.Name}");
             foreach (var (k, v) in pod.Metadata.Labels)
             {
                 Console.WriteLine($"{k} : {v}");

src/KubernetesClient/V1Patch.cs

@@ -7,25 +7,36 @@ namespace k8s.Models
     [JsonConverter(typeof(V1PathJsonConverter))]
     public partial class V1Patch
     {
-        public enum PathType
+        public enum PatchType
         {
             JsonPatch,
             MergePatch,
             StrategicMergePatch,
         }
 
-        public PathType Type { get; private set; }
+        public PatchType Type { get; private set; }
 
         public V1Patch(IJsonPatchDocument jsonPatch)
             : this((object)jsonPatch)
         {
         }
 
+        public V1Patch(String body, PatchType type)
+            : this(body)
+        {
+            this.Type = type;
+        }
+
         partial void CustomInit()
         {
             if (Content is IJsonPatchDocument)
             {
-                Type = PathType.JsonPatch;
+                Type = PatchType.JsonPatch;
+                return;
+            }
+
+            if (Content is String)
+            {
                 return;
             }
 

src/KubernetesClient/V1PathJsonConverter.cs

@@ -7,6 +7,13 @@ internal class V1PathJsonConverter : JsonConverter
     {
         public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
         {
+            var content = (value as V1Patch)?.Content;
+            if (content is String || content is string)
+            {
+                writer.WriteRaw((string)content);
+                return;
+            }
+
             serializer.Serialize(writer, (value as V1Patch)?.Content);
         }