Namespace Pollution Mechanism

    TypeScript icon, indicating that this package has built-in type declarations

    2.0.4 • Public • Published

    Showing web push notifications from Chrome, Safari, and Firefox

    React OneSignal

    This is a JavaScript module that can be used to easily include OneSignal code in a website or app that uses React for its front-end codebase.

    OneSignal is the world's leader for Mobile Push Notifications, Web Push, and In-App Messaging. It is trusted by 800k businesses to send 5 billion Push Notifications per day.

    You can find more information on OneSignal here.

    Migration Guide

    Version 2.0 was recently released. Read the Migration Guide here if you're coming from a version 1 release of the SDK.



    You can use yarn or npm.


    yarn add react-onesignal


    npm install --save react-onesignal


    Initialize OneSignal with your appId via the options parameter:

    import OneSignal from 'react-onesignal';
    OneSignal.init({ appId: 'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx' });

    The init function returns a promise that resolves when OneSignal is loaded.


    await OneSignal.init({ appId: 'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx' });
    // do other stuff

    const [initialized, setInitialized] = useState(false);
    OneSignal.init({ appId: 'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx' }).then(() => {
      OneSignal.showSlidedownPrompt().then(() => {
        // do other stuff

    Init Options

    You can pass other options to the init function. Use these options to configure personalized prompt options, auto-resubscribe, and more.

    Service Worker Params You can customize the location and filenames of service worker assets. You are also able to specify the specific scope that your service worker should control. You can read more here.

    In this distribution, you can specify the parameters via the following:

    Field Details
    serviceWorkerParam Use to specify the scope, or the path the service worker has control of. Example: { scope: "/js/push/onesignal/" }
    serviceWorkerPath The path to the service worker file.

    Service Worker File

    If you haven't done so already, you will need to add the OneSignal Service Worker file to your site (learn more).

    The OneSignal SDK file must be publicly accessible. You can put them in your top-level root or a subdirectory. However, if you are placing the file not on top-level root make sure to specify the path via the service worker params in the init options (see section above).

    Tip: Visit in the address bar to make sure the files are being served successfully.

    OneSignal API


    This package includes Typescript support.

    interface OneSignal {
      init(options: IInitObject): Promise<void>;
      on(event: string, listener: () => void): void;
      off(event: string, listener: () => void): void;
      once(event: string, listener: () => void): void;
      isPushNotificationsEnabled(callback?: Action<boolean>): Promise<boolean>;
      showHttpPrompt(options?: AutoPromptOptions): Promise<void>;
      registerForPushNotifications(options?: RegisterOptions): Promise<void>;
      setDefaultNotificationUrl(url: string): Promise<void>;
      setDefaultTitle(title: string): Promise<void>;
      getTags(callback?: Action<any>): Promise<void>;
      sendTag(key: string, value: any, callback?: Action<Object>): Promise<Object | null>;
      sendTags(tags: TagsObject<any>, callback?: Action<Object>): Promise<Object | null>;
      deleteTag(tag: string): Promise<Array<string>>;
      deleteTags(tags: Array<string>, callback?: Action<Array<string>>): Promise<Array<string>>;
      addListenerForNotificationOpened(callback?: Action<Notification>): Promise<void>;
      setSubscription(newSubscription: boolean): Promise<void>;
      showHttpPermissionRequest(options?: AutoPromptOptions): Promise<any>;
      showNativePrompt(): Promise<void>;
      showSlidedownPrompt(options?: AutoPromptOptions): Promise<void>;
      showCategorySlidedown(options?: AutoPromptOptions): Promise<void>;
      showSmsSlidedown(options?: AutoPromptOptions): Promise<void>;
      showEmailSlidedown(options?: AutoPromptOptions): Promise<void>;
      showSmsAndEmailSlidedown(options?: AutoPromptOptions): Promise<void>;
      getNotificationPermission(onComplete?: Action<NotificationPermission>): Promise<NotificationPermission>;
      getUserId(callback?: Action<string | undefined | null>): Promise<string | undefined | null>;
      getSubscription(callback?: Action<boolean>): Promise<boolean>;
      setEmail(email: string, options?: SetEmailOptions): Promise<string | null>;
      setSMSNumber(smsNumber: string, options?: SetSMSOptions): Promise<string | null>;
      logoutEmail(): Promise<void>;
      logoutSMS(): Promise<void>;
      setExternalUserId(externalUserId: string | undefined | null, authHash?: string): Promise<void>;
      removeExternalUserId(): Promise<void>;
      getExternalUserId(): Promise<string | undefined | null>;
      provideUserConsent(consent: boolean): Promise<void>;
      getEmailId(callback?: Action<string | undefined>): Promise<string | null | undefined>;
      getSMSId(callback?: Action<string | undefined>): Promise<string | null | undefined>;
      sendOutcome(outcomeName: string, outcomeWeight?: number | undefined): Promise<void>;

    OneSignal API

    See the official OneSignal WebSDK reference for information on all available SDK functions.

    Advanced Usage

    Events and Event Listeners

    Use listeners to react to OneSignal-related events:

    • subscriptionChange
    • permissionPromptDisplay
    • notificationPermissionChange
    • popoverShown
    • customPromptClick
    • notificationDisplay
    • notificationDismiss


    OneSignal.on('subscriptionChange', function(isSubscribed) {
      console.log("The user's subscription state is now:", isSubscribed);

    See the OneSignal WebSDK Reference for all available event listeners.


    window.OneSignal already defined as 'object'!

    You will get this error if you initialize twice. Make sure you are only initializing one time. When wrapped with React.StrictMode, your app might be rendering twice.

    Example App

    This repo includes an example React application implementing OneSignal. It was created using create-react-app. The app uses this repository's root level directory as the react-onesignal package and will bundle any changes on every run.

    🤝 Contributing

    Contributions, issues and feature requests are welcome!
    Feel free to check issues page.

    Show your support

    Give a ⭐️ if this project helped you!



    Reach out to us via our Discord server!

    📝 License

    Copyright © 2022 OneSignal.
    This project is Modified MIT licensed.


    Special thanks to pedro-lb and others for work on the project this package is based on.



    npm i react-onesignal

    DownloadsWeekly Downloads






    Unpacked Size

    229 kB

    Total Files


    Last publish


    • fhboswellonesignal
    • ruslan.kesheshian
    • emawby
    • brismithers
    • nan-li
    • kasten
    • rgomezp
    • jmadler