How are social media buttons made to show the number of likes/views?

Question

Social media

Would you like to add buttons to each article that show how many likes or how many reposts or how many views in social networks? I saw something similar, but I can not understand where and how it is done. More often, of course, I met just buttons, from pressing which nothing changes.

Answer 1

I usually use this
https://tech.yandex.ru/share/
//counters tab

Answer 2

Or, you keep track of all clicks in your
Ljubo database, by means of the API of each social network you upload the number of reposts, if the API of a particular social network. the network allows