[Home](./index.md) > [@snowplow/react-native-tracker](./react-native-tracker.md) > [AsyncStorage](./react-native-tracker.asyncstorage.md) ## AsyncStorage interface Signature: ```typescript export interface AsyncStorage ``` ## Properties | Property | Type | Description | | --- | --- | --- | | [getItem](./react-native-tracker.asyncstorage.getitem.md) | (key: string) => Promise<string \| null> | | | [setItem](./react-native-tracker.asyncstorage.setitem.md) | (key: string, value: string) => Promise<void> | |