Can I use external data sources in my game

Can I use external data sources (json files, googlesheet,etc) and reference the data inside my game? How about showing a youtube video inside the game? Is this possible to show a video and simply use the youtube link inside the game without incurring the file size cost in the game?

I have a lot of content from video, twitter feeds, instagram feeds, text, and voice that I can pull in, but not sure if UE can allow for this.

Your thoughts and insight is appreciated,

my question has been answered by this excellent video from @wes_bunn

Thanks Wes