Does anyone know how to use Https service?

I am a scripter that has been scripting for a few months now. I have heard of Https Service, but I have no idea how to use it. Can anyone teach me how to, or at least put a link to the tutorial?

Use this developer.roblox.com link, it's very useful and gives you code samples to do stuff.

HTTP is protocol used to make network calls. which means you can communicate with external servers.. So if you have your own database, you could use HttpService to send database queries to access the data..