sw-sync.js

sw-sync.js

self.addEventListener('sync', event => {
    console.log('sync event: ', event.tag);
    // Misuse of sync tags. Should use a queue instead
    if (event.tag.startsWith('news-article-')) {
        const articleId = Number(event.tag.substr(13));
        if (isNaN(articleId)) {
            return true;
        }
        const updateAndShowNotification = async () => {
            await updateCache(`https://happy-news-nmnepmqeqo.now.sh/${articleId}`);
            await registration.showNotification('The article is ready for you', {
                icon: 'icon.png',
                body: 'View the article',
                data: articleId
            });

        }
        event.waitUntil(updateAndShowNotification());
    }
});