1 files changed, 46 insertions, 20 deletions
diff --git a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-plugin-rest-api.js b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-plugin-rest-api.js
index d04a758d5b..eb0c7e0a54 100644
--- a/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-plugin-rest-api.js
+++ b/polygerrit-ui/app/elements/shared/gr-js-api-interface/gr-plugin-rest-api.js
@@ -1,26 +1,45 @@
-// Copyright (C) 2017 The Android Open Source Project
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/**
+ * @license
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 (function(window) {
   'use strict';
 
+  let restApi;
+
+  function getRestApi() {
+    if (!restApi) {
+      restApi = document.createElement('gr-rest-api-interface');
+    }
+    return restApi;
+  }
+
   function GrPluginRestApi(opt_prefix) {
     this.opt_prefix = opt_prefix || '';
-    this._restApi = document.createElement('gr-rest-api-interface');
   }
 
   GrPluginRestApi.prototype.getLoggedIn = function() {
-    return this._restApi.getLoggedIn();
+    return getRestApi().getLoggedIn();
+  };
+
+  GrPluginRestApi.prototype.getVersion = function() {
+    return getRestApi().getVersion();
+  };
+
+  GrPluginRestApi.prototype.invalidateReposCache = function() {
+    getRestApi().invalidateReposCache();
   };
 
   /**
@@ -28,10 +47,14 @@
    * @param {string} method HTTP Method (GET, POST, etc)
    * @param {string} url URL without base path or plugin prefix
    * @param {Object=} payload Respected for POST and PUT only.
+   * @param {?function(?Response, string=)=} opt_errFn
+   *    passed as null sometimes.
    * @return {!Promise}
    */
-  GrPluginRestApi.prototype.fetch = function(method, url, opt_payload) {
-    return this._restApi.send(method, this.opt_prefix + url, opt_payload);
+  GrPluginRestApi.prototype.fetch = function(method, url, opt_payload,
+      opt_errFn) {
+    return getRestApi().send(method, this.opt_prefix + url, opt_payload,
+        opt_errFn);
   };
 
   /**
@@ -39,10 +62,13 @@
    * @param {string} method HTTP Method (GET, POST, etc)
    * @param {string} url URL without base path or plugin prefix
    * @param {Object=} payload Respected for POST and PUT only.
+   * @param {?function(?Response, string=)=} opt_errFn
+   *    passed as null sometimes.
    * @return {!Promise} resolves on success, rejects on error.
    */
-  GrPluginRestApi.prototype.send = function(method, url, opt_payload) {
-    return this.fetch(method, url, opt_payload).then(response => {
+  GrPluginRestApi.prototype.send = function(method, url, opt_payload,
+      opt_errFn) {
+    return this.fetch(method, url, opt_payload, opt_errFn).then(response => {
       if (response.status < 200 || response.status >= 300) {
         return response.text().then(text => {
           if (text) {
@@ -52,7 +78,7 @@
           }
         });
       } else {
-        return this._restApi.getResponseObject(response);
+        return getRestApi().getResponseObject(response);
       }
     });
   };