Transfer live data from Android app to Web app

First, I am a newbie in Android and I was wondering what would be the best way to transfer data coming from an Android app to a web app.

(The purpose of this is to make an IOT platform for monitoring the environment, and ideally, it would be better if the data on the webpage was live, but I could deal with it if it is not possible)

I am not looking for a very detailed answer, simply some tips to get me started would be appreciated.

Thanks