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createAsyncStoragePersister

Installation

This utility comes as a separate package and is available under the '@tanstack/query-async-storage-persister' import.

bash
npm install @tanstack/query-async-storage-persister @tanstack/react-query-persist-client

or

bash
pnpm add @tanstack/query-async-storage-persister @tanstack/react-query-persist-client

or

bash
yarn add @tanstack/query-async-storage-persister @tanstack/react-query-persist-client

or

bash
bun add @tanstack/query-async-storage-persister @tanstack/react-query-persist-client

Usage

  • Import the createAsyncStoragePersister function
  • Create a new asyncStoragePersister
    • you can pass any storage to it that adheres to the AsyncStorage interface - the example below uses the async-storage from React Native
  • Wrap your app by using PersistQueryClientProvider component.
tsx
import AsyncStorage from '@react-native-async-storage/async-storage'
import { QueryClient } from '@tanstack/react-query'
import { PersistQueryClientProvider } from '@tanstack/react-query-persist-client'
import { createAsyncStoragePersister } from '@tanstack/query-async-storage-persister'
const queryClient = new QueryClient({
defaultOptions: {
queries: {
gcTime: 1000 * 60 * 60 * 24, // 24 hours
},
},
})
const asyncStoragePersister = createAsyncStoragePersister({
storage: AsyncStorage,
})
const Root = () => (
<PersistQueryClientProvider
client={queryClient}
persistOptions={{ persister: asyncStoragePersister }}
>
<App />
</PersistQueryClientProvider>
)
export default Root

Retries

Retries work the same as for a SyncStoragePersister, except that they can also be asynchronous. You can also use all the predefined retry handlers.

API

createAsyncStoragePersister

Call this function to create an asyncStoragePersister that you can use later with persistQueryClient.

tsx
createAsyncStoragePersister(options: CreateAsyncStoragePersisterOptions)

Options

tsx
interface CreateAsyncStoragePersisterOptions {
/** The storage client used for setting an retrieving items from cache */
storage: AsyncStorage | undefined | null
/** The key to use when storing the cache to localStorage */
key?: string
/** To avoid localStorage spamming,
* pass a time in ms to throttle saving the cache to disk */
throttleTime?: number
/** How to serialize the data to storage */
serialize?: (client: PersistedClient) => string
/** How to deserialize the data from storage */
deserialize?: (cachedString: string) => PersistedClient
/** How to retry persistence on error **/
retry?: AsyncPersistRetryer
}
interface AsyncStorage {
getItem: (key: string) => Promise<string | null>
setItem: (key: string, value: string) => Promise<unknown>
removeItem: (key: string) => Promise<void>
}

The default options are:

tsx
{
key = `REACT_QUERY_OFFLINE_CACHE`,
throttleTime = 1000,
serialize = JSON.stringify,
deserialize = JSON.parse,
}
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