Accessing server files via web app

I'm currently running a Flask web app on my Amazon EC2 instance. It's a pretty simple application. What this application does is interact heavily with the file-system. E.g: I have 8947 videos on the server, and I want my users who access the website via the URL to be able to choose 1 of the 8947 videos on the server. My Flask backend will interact with it. What would be a way to solve this? This is a demo application, and I really don't want to have to resort to downloading 8947 videos on to my local machine.