feat: Add IndexedDB Storage Controller

README.md

@@ -44,6 +44,12 @@ const Parse = require('parse');
 import Parse from 'parse/dist/parse.min.js';
 ```
 
+For web worker or browser applications, indexedDB storage is available:
+
+```js
+Parse.CoreManager.setStorageController(Parse.IndexedDB);
+```
+
 For server-side applications or Node.js command line tools, include `'parse/node'`:
 
 ```js

package.json

@@ -29,8 +29,9 @@
     "react-native": false
   },
   "dependencies": {
-    "@babel/runtime-corejs3": "7.12.5",
     "@babel/runtime": "7.12.5",
+    "@babel/runtime-corejs3": "7.12.5",
+    "idb-keyval": "5.0.2",
     "react-native-crypto-js": "1.0.0",
     "uuid": "3.4.0",
     "ws": "7.4.2",

src/IndexedDBStorageController.js

@@ -0,0 +1,32 @@
+/**
+ * @flow
+ */
+
+import { createStore, del, set, get, clear, keys } from 'idb-keyval';
+
+try {
+  const ParseStore = createStore('parseDB', 'parseStore');
+
+  const IndexedDBStorageController = {
+    async: 1,
+    getItemAsync(path: string) {
+      return get(path, ParseStore);
+    },
+    setItemAsync(path: string, value: string) {
+      return set(path, value, ParseStore);
+    },
+    removeItemAsync(path: string) {
+      return del(path, ParseStore);
+    },
+    getAllKeysAsync() {
+      return keys(ParseStore);
+    },
+    clear() {
+      return clear(ParseStore);
+    },
+  };
+
+  module.exports = IndexedDBStorageController;
+} catch (e) {
+  // IndexedDB not supported
+}

src/Parse.js

@@ -226,6 +226,7 @@ Parse.Storage = require('./Storage');
 Parse.User = require('./ParseUser').default;
 Parse.LiveQuery = require('./ParseLiveQuery').default;
 Parse.LiveQueryClient = require('./LiveQueryClient').default;
+Parse.IndexedDB = require('./IndexedDBStorageController');
 
 Parse._request = function (...args) {
   return CoreManager.getRESTController().request.apply(null, args);

src/__tests__/Parse-test.js

@@ -200,4 +200,12 @@ describe('Parse module', () => {
   it('_encode', () => {
     expect(Parse._encode(12)).toBe(12);
   });
+
+  it('can get IndexedDB storage', () => {
+    console.log(Parse.IndexedDB);
+    expect(Parse.IndexedDB).toBeDefined();
+    CoreManager.setStorageController(Parse.IndexedDB);
+    const currentStorage = CoreManager.getStorageController();
+    expect(currentStorage).toEqual(Parse.IndexedDB);
+  });
 });

src/__tests__/Storage-test.js

@@ -10,43 +10,16 @@
 jest.autoMockOff();
 
 const mockRNStorageInterface = require('./test_helpers/mockRNStorage');
+const mockStorageInterface = require('./test_helpers/mockStorageInteface');
+const mockIndexedDB = require('./test_helpers/mockIndexedDB');
 const mockWeChat = require('./test_helpers/mockWeChat');
 const CoreManager = require('../CoreManager');
 
 global.wx = mockWeChat;
-
-let mockStorage = {};
-const mockStorageInterface = {
-  getItem(path) {
-    return mockStorage[path] || null;
-  },
-
-  getItemAsync(path) {
-    return Promise.resolve(mockStorageInterface.getItem(path));
-  },
-
-  setItem(path, value) {
-    mockStorage[path] = value;
-  },
-
-  setItemAsync(path, value) {
-    return Promise.resolve(mockStorageInterface.setItem(path, value));
-  },
-
-  removeItem(path) {
-    delete mockStorage[path];
-  },
-
-  removeItemAsync(path) {
-    return Promise.resolve(mockStorageInterface.removeItem(path));
-  },
-
-  clear() {
-    mockStorage = {};
-  },
-};
-
 global.localStorage = mockStorageInterface;
+jest.mock('idb-keyval', () => {
+  return mockIndexedDB;
+});
 
 const BrowserStorageController = require('../StorageController.browser');
 
@@ -192,6 +165,46 @@ describe('React Native StorageController', () => {
   });
 });
 
+const IndexedDBStorageController = require('../IndexedDBStorageController');
+
+describe('React Native StorageController', () => {
+  beforeEach(() => {
+    IndexedDBStorageController.clear();
+  });
+
+  it('is asynchronous', () => {
+    expect(IndexedDBStorageController.async).toBe(1);
+    expect(typeof IndexedDBStorageController.getItemAsync).toBe('function');
+    expect(typeof IndexedDBStorageController.setItemAsync).toBe('function');
+    expect(typeof IndexedDBStorageController.removeItemAsync).toBe('function');
+  });
+
+  it('can store and retrieve values', async () => {
+    let result = await IndexedDBStorageController.getItemAsync('myKey');
+    expect(result).toBe(null);
+    await IndexedDBStorageController.setItemAsync('myKey', 'myValue');
+    result = await IndexedDBStorageController.getItemAsync('myKey');
+    expect(result).toBe('myValue');
+  });
+
+  it('can remove values', async () => {
+    await IndexedDBStorageController.setItemAsync('myKey', 'myValue');
+    let result = await IndexedDBStorageController.getItemAsync('myKey');
+    expect(result).toBe('myValue');
+    await IndexedDBStorageController.removeItemAsync('myKey');
+    result = await IndexedDBStorageController.getItemAsync('myKey');
+    expect(result).toBe(null);
+  });
+
+  it('can getAllKeys', async () => {
+    await IndexedDBStorageController.setItemAsync('myKey', 'myValue');
+    const result = await IndexedDBStorageController.getItemAsync('myKey');
+    expect(result).toBe('myValue');
+    const keys = await IndexedDBStorageController.getAllKeysAsync();
+    expect(keys[0]).toBe('myKey');
+  });
+});
+
 const DefaultStorageController = require('../StorageController.default');
 
 describe('Default StorageController', () => {

src/__tests__/test_helpers/mockIndexedDB.js

@@ -0,0 +1,34 @@
+/**
+ * Copyright (c) 2015-present, Parse, LLC.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+let mockStorage = {};
+const mockStorageInterface = {
+  createStore() {},
+
+  async get(path) {
+    return mockStorage[path] || null;
+  },
+
+  async set(path, value) {
+    mockStorage[path] = value;
+  },
+
+  async del(path) {
+    delete mockStorage[path];
+  },
+
+  async keys() {
+    return Object.keys(mockStorage);
+  },
+
+  async clear() {
+    mockStorage = {};
+  },
+};
+
+module.exports = mockStorageInterface;

src/__tests__/test_helpers/mockStorageInteface.js

@@ -0,0 +1,39 @@
+/**
+ * Copyright (c) 2015-present, Parse, LLC.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+let mockStorage = {};
+const mockStorageInterface = {
+  getItem(path) {
+    return mockStorage[path] || null;
+  },
+
+  getItemAsync(path) {
+    return Promise.resolve(mockStorageInterface.getItem(path));
+  },
+
+  setItem(path, value) {
+    mockStorage[path] = value;
+  },
+
+  setItemAsync(path, value) {
+    return Promise.resolve(mockStorageInterface.setItem(path, value));
+  },
+
+  removeItem(path) {
+    delete mockStorage[path];
+  },
+
+  removeItemAsync(path) {
+    return Promise.resolve(mockStorageInterface.removeItem(path));
+  },
+
+  clear() {
+    mockStorage = {};
+  },
+};
+module.exports = mockStorageInterface;