workbox - 如何检查 workbox-background-sync 中是否有待处理的请求？

Question

如果 workbox-background-sync 表中有待处理的请求，我想在 Vue 中显示通知。这是我存储所有待处理请求的 IndexedDB。

这是我的 service-worker.js 文件

const showNotification = () => {
    self.registration.showNotification('Sync success!', {
        body: 'Queue Resolved ''',
    });
};

const bgSyncPlugin = new workbox.backgroundSync.Plugin('offlineData', {
    maxRetentionTime: 24 * 60, // Retry for max of 24 Hours (specified in minutes)
    callbacks: {
        queueDidReplay: showNotification,
    },
});

const networkWithBackgroundSync = new workbox.strategies.NetworkOnly({
    plugins: [bgSyncPlugin],
});

workbox.routing.registerRoute(/\/*/, networkWithBackgroundSync, 'POST');