Well, I researched for days on the web and I did not find a complete tutorial or video lesson on how to do this: / I hope you here in stackoverflow help me kkkk.
Well I need to create one of these notification systems like facebook, gmail, workana among other sites do, an example: when someone marks you on facebook appears a notification on the screen.
I've tried everything here kkk but it seems that my level on the subject did not help me to succeed: /
I tried with firebase - Socket.IO anyway what I found ahead was trying but without any success ...
Someone here knows how to do this, and has a tutorial like this: follow this that works lkkk
Thank you !!!