metuero

You can use getPersonas to get persona data. Off the top of my head (this might not work), getting an avatar URL would go something like this:
user.getPersonas(["76561198006409530"], (personas) => {     var hash = personas["76561198006409530"].avatar_hash.toString('hex');     var url = "https://steamcdn-a.akamaihd.net/steamcommunity/public/images/avatars/" + hash.substring(0, 2) + "/" + hash + "_full.jpg"; });