Add some constants and an example of patching resources.

examples/patch-example.js

@@ -0,0 +1,23 @@
+const k8s = require('@kubernetes/client-node');
+
+const kc = new k8s.KubeConfig();
+kc.loadFromDefault();
+
+const k8sApi = kc.makeApiClient(k8s.CoreV1Api);
+
+k8sApi.listNamespacedPod('default')
+    .then((res) => {
+        const patch = [
+            {
+                "op": "replace",
+                "path":"/metadata/labels",
+                "value": {
+                    "foo": "bar"
+                }
+            }
+        ];
+        const options = { "headers": { "Content-type": k8s.PatchUtils.PATCH_FORMAT_JSON_PATCH}};
+        k8sApi.patchNamespacedPod(res.body.items[0].metadata.name, 'default', patch, undefined, undefined, undefined, undefined, options)
+            .then(() => { console.log("Patched.")})
+            .catch((err) => { console.log("Error: "); console.log(err)});
+    });

src/index.ts

@@ -12,3 +12,4 @@ export * from './informer';
 export * from './top';
 export * from './object';
 export * from './cp';
+export * from './patch';

src/patch.ts

@@ -0,0 +1,6 @@
+export class PatchUtils {
+    public static PATCH_FORMAT_JSON_PATCH = 'application/json-patch+json';
+    public static PATCH_FORMAT_JSON_MERGE_PATCH = 'application/merge-patch+json';
+    public static PATCH_FORMAT_STRATEGIC_MERGE_PATCH = 'application/strategic-merge-patch+json';
+    public static PATCH_FORMAT_APPLY_YAML = 'application/apply-patch+yaml';
+}