Hey, I have a question about server side notifications, let me tell you what I wanna say.

I made a news site using Newsapi.org’s API, my site fetches the news in a specific time I set, but I want that users can allow notifications by clicking a button on my site.
When a user clicks the button then the browser (absolutely through site!) will ask for notifications permission, once allow then the browser will show a alert of Permition Grantend, and after that whenever new news will be fetched, the user will get a push-notification that Daily dose of news is ready with a picture, logo, body, title and every fancy thing, but the main twist is that I don’t want to be dependent on the Firebase, so can I anyone tell me solution of that?

MOST IMPORTANT THING THAT USER SHOULD GET THE NOTIFICATION EVEN IF HE HAS NOT OPENED MY SITE

WHAT I USED TO MAKE MY PROJECT –

• Node.js
• Express
• MongoDB
• Pure HTML CSS and JS (I don’t wnat to be get addicted of frameworks, becuase I believe that it makes you a noob)

KEY POINTS –

• If user deny the permission then the popup will show Permission denied

• After allowing of permission, if the user clicks the button again, he will get a alert of Already subscribed

• If user clicks the button again after denying the permission, a alert will be shown as Please grant manually

I treid FIREBASE but it has limited options. SO I WANNA DEPENDENT ON MY SERVER SIDE THIS SYsTEM I ASKED FOR.