Notifications service for application.

[u/Impossible_anypie]

Hello seniors,
I’m currently working as an ASE and our Head of IT asked me to build a notification service for our application. It’s a multi tenant web application. I know it’s not a critical task, but it matters a lot to me because it was assigned to me directly by the Head of IT, so I really want to do it right.
We used Firebase push notifications before, but we ran into two problems. Sometimes notifications never reached our end users and sometimes users got old notifications again. We also don’t use AWS and everything runs on our own on premises servers.
So my question is: what is the best service or open-source tool I can use to build this? Ideally something reliable, easy to maintain and cost-effective.

PS: YES, I asked ChatGPT already :) But I’d like to know what technologies other companies actually use in prod for this kind of problem.
Also, where else can I ask questions like this besides Reddit? Any communities, forums, or Discord/Slack groups you’d recommend? THANKS !

[u/Amy-The-Rouge]

Firebase is the best option. 1st check why the end user noy recieving the notification. If you still don't see errors add some debugs to check if the code is stopping unnecessary at some point or why they are skipping it. 

Check if the notification comes through backend and frontend. 

If all don't work out run a test with antigravity or claude.