title: node - How to generate NFT token for a file
body: <p>I'm reading about NFT tokens. It seems an interesting way to sign media online and I want to do some experiments. Is there any node-js implementation to add nft generation inside web or electron apps?
  I'ts not clear for me if the <a href="https://ethereum.org/en/developers/docs/standards/tokens/erc-721/" rel="nofollow noreferrer">ÈRC-721</a> standard can be implemented in javascript. Any info about?</p>