What is AsyncStorage?

What is AsyncStorage and how is it used in React Native?

AsyncStorage is a simple, unencrypted, asynchronous, persistent storage system for React Native. It allows you to store data in key-value pairs.

Can you give me an example of how to use AsyncStorage?

Sure! You can use AsyncStorage like this:

import AsyncStorage from '@react-native-async-storage/async-storage';

const storeData = async (value) => {
  try {
    await AsyncStorage.setItem('@storage_Key', value);
  } catch (e) {
    // saving error
  }
};

const getData = async () => {
  try {
    const value = await AsyncStorage.getItem('@storage_Key');
    if(value !== null) {
      // value previously stored
    }
  } catch(e) {
    // error reading value
  }
};

This code snippet shows how to store and retrieve data.

Is AsyncStorage secure for sensitive data?

No, AsyncStorage is not secure for sensitive data as it is unencrypted. For sensitive information, consider using libraries like SecureStore.

What are the limitations of using AsyncStorage?

Some limitations include its synchronous nature for large data sets, lack of encryption, and performance issues with large amounts of data.