SuryaSankar’s gists

SuryaSankar / service_worker.js

Created February 20, 2020 12:10

Basic Service worker

	'use strict';

	/* eslint-enable max-len */

	self.addEventListener('install', function(event) {
	console.log('Service Worker installing.');
	});

	self.addEventListener('activate', function(event) {
	console.log('Service Worker activating.');

SuryaSankar / register_service_worker.js

Created February 20, 2020 12:28

Basic registration script

	'use strict';

	function urlB64ToUint8Array(base64String) {
	const padding = '='.repeat((4 - base64String.length % 4) % 4);
	const base64 = (base64String + padding)
	.replace(/\-/g, '+')
	.replace(/_/g, '/');

	const rawData = window.atob(base64);
	const outputArray = new Uint8Array(rawData.length);

SuryaSankar / push_subscription_sample.json

Created February 20, 2020 12:30

Sample push subscription json

	{
	"endpoint":"https://fcm.googleapis.com/fcm/send/c434328ouoiuoiu32432cMR1nib-T2eDKDu3cZg3Y9M8y_gQa2VLtKeBerwerwerewr32423432432ewrrewrewfcaezv6ctv84-wKqTOeDZFN423409832049832049iuaroieuroewBgg3-26BtZ", "expirationTime":null,
	"keys":{
	"p256dh":"BEuDDnZ4324234ewrewrewr2432432ewrew7gzfEsBKbe3z26ycB8l2h-h_v9yLLAw82CH83IQiCbT9238409348305Hgs",
	"auth":"i7jSDPe_1Nm321rrerew12321-XSA"
	}
	}

SuryaSankar / webpush_handler.py

Created February 20, 2020 12:33

Basic webpush handler

	from pywebpush import webpush, WebPushException
	import json
	from flask import current_app


	def trigger_push_notification(push_subscription, title, body):
	try:
	response = webpush(
	subscription_info=json.loads(push_subscription.subscription_json),
	data=json.dumps({"title": title, "body": body}),

SuryaSankar / webpush_handler.py

Last active February 20, 2020 12:42

Basic webpush handler

	from pywebpush import webpush, WebPushException
	import json
	from flask import current_app


	def trigger_push_notification(push_subscription, title, body):
	try:
	response = webpush(
	subscription_info=json.loads(push_subscription.subscription_json),
	data=json.dumps({"title": title, "body": body}),

SuryaSankar / index.html

Created February 20, 2020 12:43

Webpush basic home page

	<html>
	<head>
	<link rel="icon" href="data:,">
	</head>
	<body>
	<h1>Webpush Demo</h1>
	<script
	type="text/javascript"
	src="/static/register_service_worker.js">
	</script>

SuryaSankar / push_subscriptions_api.py

Created February 20, 2020 12:46

Simple api for push subscriptions

	@app.route("/api/push-subscriptions", methods=["POST"])
	def create_push_subscription():
	json_data = request.get_json()
	subscription = PushSubscription.query.filter_by(
	subscription_json=json_data['subscription_json']
	).first()
	if subscription is None:
	subscription = PushSubscription(
	subscription_json=json_data['subscription_json']
	)

SuryaSankar / trigger_push_notifications_basic.py

Created February 20, 2020 12:48

Trigger push notifications - basic

	@app.route("/admin-api/trigger-push-notifications", methods=["POST"])
	def trigger_push_notifications():
	json_data = request.get_json()
	subscriptions = PushSubscription.query.all()
	results = trigger_push_notifications_for_subscriptions(
	subscriptions,
	json_data.get('title'),
	json_data.get('body')
	)
	return jsonify({

SuryaSankar / db_connection_simple.py

Last active March 10, 2020 09:17

Basic webpush app - db connection

	app.config['SQLALCHEMY_DATABASE_URI'] = "sqlite://"

	db = SQLAlchemy(app)

	class PushSubscription(db.Model):
	id = db.Column(db.Integer, primary_key=True, unique=True)
	subscription_json = db.Column(db.Text, nullable=False)

	db.create_all()

SuryaSankar / webpush_basic_admin.html

Created February 20, 2020 13:08

Webpush basic functionality - Admin

	<html>
	<head>
	<link rel="icon" href="data:,">
	<script
	src="https://code.jquery.com/jquery-3.4.1.min.js"
	integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo="
	crossorigin="anonymous"></script>
	</head>
	<body>
	<h1>Trigger a Push Notification</h1>

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