Progressive Web Apps (PWAs) enables a website to make make a lot of interactions that are app-like. Among these are Push Notifications. This is a functionality that enables you to make native notifications for many different devices and to invoke these notifications even when the browser is not active. A lot of websites like the Twitter web app use this functionality with its original intent, but there are of cause also sites who use it maliciously. In this article, we will show how you can subscribe to Push Notifications using ASP.NET Core and how you can send Push Notifications from .NET as well.

Setting up a minimal PWA

Before we can get started we need to set up a minimal Service Worker and Manifest to meet the minimum requirements for a PWA (Progressive Web App) since this we need a PWA for using the Notification API.
We first create the manifest by making a JSON file called manifest.json which we will place in the wwwroot folder.

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