addToIndexedDB

1/**
2 * Adds a record to an object store in IndexedDB.
3 *
4 * @param db - The open IDBDatabase instance.
5 * @param storeName - The name of the object store.
6 * @param data - The data to add.
7 * @returns A Promise that resolves with the inserted key.
8 */
9export function addToIndexedDB<T = any>(
10  db: IDBDatabase,
11  storeName: string,
12  data: T
13): Promise<IDBValidKey> {
14  return new Promise((resolve, reject) => {
15    const transaction = db.transaction([storeName], 'readwrite');
16    const store = transaction.objectStore(storeName);
17    const request = store.add(data);
18
19    request.onsuccess = () => resolve(request.result);
20    request.onerror = () => reject(request.error);
21  });
22}

1import { openIndexedDB } from './openIndexedDB';
2
3test('addToIndexedDB - adds a record and returns a key', async () => {
4  const db = await openIndexedDB('TestDB_Add', 1, {
5    upgrade(db) {
6      if (!db.objectStoreNames.contains('items')) {
7        db.createObjectStore('items', { keyPath: 'id' });
8      }
9    }
10  });
11
12  const result = await addToIndexedDB(db, 'items', { id: 1, name: 'Item 1' });
13
14  expect(result).toBe(1);
15  db.close();
16});
17
18test('addToIndexedDB - fails on invalid store', async () => {
19  const db = await openIndexedDB('TestDB_AddFail', 1, {
20    upgrade(db) {
21      if (!db.objectStoreNames.contains('valid')) {
22        db.createObjectStore('valid', { keyPath: 'id' });
23      }
24    }
25  });
26
27  await expect(addToIndexedDB(db, 'invalid', { id: 1 })).rejects.toThrow();
28  db.close();
29});