React Native AsyncStorage storing values other than strings

Question

Is there any way to store values other than strings with AsyncStorage? I want to store simple boolean values for example.

AsyncStorage.setItem(\'key\', \'ok\         


        

Answer 1

I always use/create a wrapper modulee around AsyncStorage, utilising JSON.parse & JSON.stringify on the data coming in and out.

This way you remove the need to have you JSON.parse & JSON.stringify calls inside your business logic. This keeps the code a bit nicer on the eye.

Something like

import AsyncStorage from "@react-native-community/async-storage";

export const Storage {

    getItem: async (key) => {
        try {
             let result = await AsyncStorage.getItem(key);
             return JSON.parse(result);
        } 
        catch (e) {
             throw e;
        } 
    },

    setItem: async (key, value) => {

        try {
            const item = JSON.stringify(value);

            return await AsyncStorage.setItem(key, item);
        } catch (e) {
            throw e;
        }
    }
}

// usage

async function usage () {

    const isLeeCool = true;
    const someObject = { name: "Dave" };
    const someArray = ["Lee", "Is", "Cool."];

    try {
        // Note Async storage has a method where you can set multiple values,
        // that'd be a better bet here (adding it to the wrapper).
        await Storage.setItem("leeIsCool", leeIsCool);
        await Storage.setItem("someObject", someObject);
        await Storage.setItem("someArray", someArray);
    }  catch (e) {}

    // Some point later that day...

    try {

        console.log(await Storage.getItem("leeIsCool"));
        console.log(await Storage.getItem("someObject"));
        console.log(await Storage.getItem("someArray"));
    }  catch (e) {}
}