How to add likes meter on a social media app

[AtharvaPawar]

I’m working on a social media app right now and have stumbled upon my first major challenge.
The like meter, I’m using Firebase as my storage and was thinking of adding the likes in the tag itself.

My tags for posts are this way
<url of cloudinary(where I’m storing the images)>

this is my tag, i use tags this way cause its easier and faster to retrieve data this way(open to suggestions if any more efficient way is available)

The problem with this is i was deleting the tag with old votes and adding new tag with new votes but this way if I have multiple users online i may have a huge problem, so please help me.

Thank you in advance

[Unknown_Designer (Himanshu)]

System of likes or hearts

You Have To Use 2nd Way For That For Example If I Have 10 Hearts In Database So We Need To Store It Some Where In Variables Or In Label Or In TinyDB When User Click On Heart icon You Have To Increase It By Adding(+) 1 So It Will Be 11 And When User Click It Again So You Need To Decrese It By Minasing (-) 1 So It Will Be 10 Ps :: You Need To Store Total Clicks Not Click Click Is For Detecting How Much Time User Clicked

[AtharvaPawar]

I can use that method but the thing is that every post has different number of likes…