How to develop video stream (ReactJs + ExpressJs)?

Question

JavaScript

Hello everybody!

How to develop a streaming video player, such as in: okko.ru , youtube , etc. ?

The task is this: A platform for taking courses, courses weigh a lot, you need to request videos gradually. It is very important that a token be attached to each request in the headers, thanks to which we understand that a person has this course.

It is important that it would be impossible to copy the link to the video and share it.

Tell me, what technologies are there for this task, what to use?
I am new to this topic.