Function createStore

packages/browser/src/transports/offline.ts:44–50

(dbName: string, storeName: string)

/** Create or open an IndexedDb store */
export function createStore(dbName: string, storeName: string): Store {
  const request = indexedDB.open(dbName);
  request.onupgradeneeded = () => request.result.createObjectStore(storeName);
  const dbp = promisifyRequest(request);

  return callback => dbp.then(db => callback(db.transaction(storeName, 'readwrite').objectStore(storeName)));
}

function keys(store: IDBObjectStore): Promise<number[]> {
  return promisifyRequest(store.getAllKeys() as IDBRequest<number[]>);