API reference > @kontsedal/olas-persist > restoreQueryCache

restoreQueryCache() function

Read the stored cache ahead of createRoot, for storage that reads asynchronously (IndexedDB). Resolves with a DehydratedState forcreateRoot({ hydrate }), or undefined when there is nothing to restore.

const storage = indexedDbAdapter()
const hydrate = await restoreQueryCache({ storage })
const root = createRoot(app, {
  deps,
  queries: queryEngine(),
  hydrate,
  plugins: [persistQueryCachePlugin({ storage, restore: false })],
})

Signature:

export declare function restoreQueryCache(options?: PersistQueryCacheOptions): Promise<DehydratedState | undefined>;

Parameters

Parameter	Type	Description
options	PersistQueryCacheOptions	(Optional)

Returns:

Promise<DehydratedState | undefined>