Web Push Notifications with React and Pushpad

This tutorial demonstrates how to seamlessly integrate web push notifications into your React application using the Pushpad SDK. We'll create a simple React component: a button that enables users to subscribe to or unsubscribe from push notifications.

Setting up the Pushpad JavaScript SDK

Begin by adding a service-worker.js file to your website's root directory. Add the following code to this file:

<code class="language-javascript">importScripts('https://pushpad.xyz/service-worker.js');</code>

Next, include this code snippet in your website:

<code class="language-javascript">(function(p,u,s,h,x){p.pushpad=p.pushpad||function(){(p.pushpad.q=p.pushpad.q||[]).push(arguments)};h=u.getElementsByTagName('head')[0];x=u.createElement('script');x.async=1;x.src=s;h.appendChild(x);})(window,document,'https://pushpad.xyz/pushpad.js');

pushpad('init', PROJECT_ID);</code>

Remember to replace PROJECT_ID with your actual project ID from the Pushpad dashboard.

Note: Pushpad's init function attempts to register service-worker.js. If you've already registered a service worker, you can bypass this by using: pushpad('init', PROJECT_ID, { serviceWorkerPath: null });.

Pushpad SDK Functions

The Pushpad SDK provides several useful functions:

• pushpad('subscribe'): Subscribes the user and displays the browser's permission prompt.
• pushpad('status'): Retrieves the current subscription status.
• pushpad('unsubscribe'): Unsubscribes the user.
• pushpad('uid'): Authenticates users.
• pushpad('tags'): Adds targeting data.

React Component: A Subscribe/Unsubscribe Button

Here's the React code for creating a subscribe/unsubscribe button:

<code class="language-javascript">import React, { useState, useEffect } from 'react';

const PushSubscriptionButton = () => {
  const [subscribed, setSubscribed] = useState(null);

  useEffect(() => {
    pushpad('status', (isSubscribed) => {
      setSubscribed(isSubscribed);
    });
  }, []);

  const subscribe = () => {
    pushpad('subscribe', (isSubscribed) => {
      setSubscribed(isSubscribed);
      if (!isSubscribed) {
        alert('Notifications are blocked by browser settings.');
      }
    });
  };

  const unsubscribe = () => {
    pushpad('unsubscribe', () => {
      setSubscribed(false);
    });
  };

  if (subscribed === null) {
    return null;
  }

  return (
    subscribed ? (
      <button onClick={unsubscribe}>Unsubscribe</button>
    ) : (
      <button onClick={subscribe}>Subscribe</button>
    )
  );
};

export default PushSubscriptionButton;</code>

This component checks the subscription status, displays the appropriate button ("Subscribe" or "Unsubscribe"), and handles subscription/unsubscription actions. It also provides a user-friendly alert if notifications are blocked.

Sending Notifications

Once you have subscribers, you can send notifications using the Pushpad dashboard (manual sending) or programmatically via the Pushpad API (using their Node.js or other language libraries). This allows you to send notifications even when users aren't actively on your website. Examples include new blog post announcements or e-commerce promotions.

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