When you hear people talk about JSON, hopefully, you aren't thinking of this guy:
I found the image on the web, marked creative commons; it's a Jason Voorhees costume (cosplay) from the Montreal Comic-Con. The photo is from Pikawil from Laval, Canada.
On a serious note, JSON is the most common way to bring in the outside world through web services; however, as we've seen ways to include native code and JavaScript, you could integrate your system in a variety of ways.
The other huge advantage of React VR is that it is based on React, so things that you can commonly do with React, you can do in React VR, with some important differences.
At first, you might be thinking, "How do I do AJAX requests in React VR?"
You don't, not really. React VR and React Native do not have any allegiance to any particular way of fetching data. In fact, as far as React is concerned, it doesn't even know there's a server in the picture at all.
React simply renders components...