This app contains a React component for the Wistia player: <WistiaEmbed>.
Check out /components/wistia_embed.js to see the internals of the component, and take a look at how the component gets used over in /App.js.
This app lives on Glitch, so you can make a working copy of it and start breaking/fixing stuff (the best way to learn!) right now. Just click Remix.