Where are things like: SignalR Core, Socket.IO, WebSocket, SignalR and Rest Api?

Hello,
please tell me where and how to use these technologies during the development of projects on unity3d?
SignalR Core, Socket.IO, WebSocket, SignalR and Rest Api
What they do and why use them?
Seen on Youtube some streamers for Hearthstone such a feature during the broadcast: in the arena enabled the audience to collect them to the deck by voting in the chat for a particular proposed map. So can you help in establishing that any of the things mentioned in the question title?
March 20th 20 at 11:52
2 answers
March 20th 20 at 11:54
Yes
March 20th 20 at 11:56
These technologies allow data to be transferred from viewers on the server.
they allowed the audience to gather them to the deck by voting in the chat for a particular proposed map

These words can help, but I would advise you to see the HTTP POST, GET and AJAX. These things will allow you to create the interactivity with the audience a couple of lines of code.

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