How to reliably send real-time output of a process over a web server? [closed]

I plan to create something similar to XBOX Cloud Gaming, wherein a client can play a game that is running on the server.
Ideally, what I want is a web server (hosted through something like ngrok) that reliably sends what the game is output to the end-user in real-time.An example of the type of output I would expect is the Droidcam Web Server, where you just go to a link and get access to the camera data of the target phone in real time.