46 lines
1.5 KiB
JavaScript
46 lines
1.5 KiB
JavaScript
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/* nonshy web push notification helper */
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navigator.serviceWorker.register("/sw.js", {
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scope: "/",
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}).catch(err => {
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console.error("Service Worker NOT registered:", err);
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});
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function PushNotificationSubscribe() {
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navigator.serviceWorker.ready.then(async function(registration) {
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return registration.pushManager.getSubscription().then(async function(subscription) {
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// If a subscription was already found, return it.
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if (subscription) {
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return subscription;
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}
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// Get the server's public key.
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const response = await fetch("/v1/web-push/vapid-public-key");
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const vapidPublicKey = await response.text();
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// Subscribe the user.
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return registration.pushManager.subscribe({
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userVisibleOnly: true,
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applicationServerKey: vapidPublicKey,
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});
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}).then(subscription => {
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// Post it to the backend.
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const serialized = JSON.stringify(subscription);
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fetch("/v1/web-push/register", {
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method: "POST",
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headers: {
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"Content-Type": "application/json",
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},
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body: serialized
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});
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});
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});
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}
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// If the user has already given notification permission, (re)subscribe for push.
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document.addEventListener("DOMContentLoaded", e => {
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if (Notification.permission === "granted") {
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PushNotificationSubscribe();
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}
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});
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