What is needed for the wifi authorization page and how to do it?

Question

Computer networks

Guys, we really need a person who understands the networks.
The task is such that you need to make a Wi-Fi authorization page for the restaurant.
A person connects to the network and there:
Do you want free Wi-Fi? subscribe to insta.
and then go to wifi. What is needed for this, how does it all work.
and how much does it cost to do it for one access point.
If there is a person who did it. I can even take a free consultation.

Answer 1

This technology is called captive portal, some devices can do it out of the box, but they are mainly focused on receiving a phone and then sending an authorization code to it. Custom solutions with following on Instagram (how will a person subscribe, by the way, if he does not have the Internet?) - most likely you will have to write from scratch, this is in the next section .