feat: auth-client stores identities in indexeddb (#605)

* feat: adds IdbStorage as new default for auth-client
* Adds IdbKeyVal interface

docs/generated/changelog.html

@@ -10,6 +10,16 @@
     <h1>Agent-JS Changelog</h1>
 
     <section>
+      <h2>Version 0.12.3</h2>
+      <ul>
+        <li>
+          AuthClient now uses IndexedDb by default. To use localStorage, import LocalStorage
+          provider and pass it during AuthClient.create().
+        </li>
+        <ul>
+          <li>Also offers a generic Indexed Db keyval store, IdbKeyVal</li>
+        </ul>
+      </ul>
       <h2>Version 0.12.2</h2>
       <ul>
         <li>

packages/auth-client/package.json

@@ -51,11 +51,12 @@
     "@dfinity/principal": "^0.12.2"
   },
   "devDependencies": {
-    "@trust/webcrypto": "^0.9.2",
+    "@peculiar/webcrypto": "^1.4.0",
     "@typescript-eslint/eslint-plugin": "^5.30.5",
     "@typescript-eslint/parser": "^5.30.5",
     "eslint": "^8.19.0",
     "eslint-plugin-jsdoc": "^39.3.3",
+    "fake-indexeddb": "^4.0.0",
     "jest-environment-jsdom": "^28.1.2",
     "text-encoding": "^0.7.0",
     "tslint": "^5.20.0",
@@ -65,6 +66,7 @@
   },
   "dependencies": {
     "@types/jest": "^28.1.4",
+    "idb": "^7.0.2",
     "jest": "^28.1.2",
     "ts-jest": "^28.0.5",
     "ts-node": "^10.8.2"

packages/auth-client/src/db.test.ts

@@ -0,0 +1,35 @@
+import 'fake-indexeddb/auto';
+import { IdbKeyVal } from './db';
+
+let testCounter = 0;
+
+const testDb = async () => {
+  return await IdbKeyVal.create({
+    dbName: 'db-' + testCounter,
+    storeName: 'store-' + testCounter,
+  });
+};
+
+beforeEach(() => {
+  testCounter += 1;
+});
+
+describe('indexeddb wrapper', () => {
+  it('should store a basic key value', async () => {
+    const db = await testDb();
+    const shouldSet = async () => await db.set('testKey', 'testValue');
+    expect(shouldSet).not.toThrow();
+
+    expect(await db.get('testKey')).toBe('testValue');
+  });
+  it('should support removing a value', async () => {
+    const db = await testDb();
+    await db.set('testKey', 'testValue');
+
+    expect(await db.get('testKey')).toBe('testValue');
+
+    await db.remove('testKey');
+
+    expect(await db.get('testKey')).toBe(null);
+  });
+});