Real-time sports data.
Zero polling.

// connect once — subscribe to multiple matches
const ws = new WebSocket(
  "wss://sports.bzzoiro.com/live/football/?token=…"
);
ws.onopen = () => {
  ws.send('{"action":"subscribe","event_id":204849}');
};
ws.onmessage = ({ data }) => {
  const frame = JSON.parse(data);
  switch(frame.type) {
    case "livedata": drawBall(frame.coordinates); break;
    case "event":    updateScore(frame); break;
    case "odds":     updateOdds(frame.odds); break;
    case "action":  addActionFeed(frame); break;
  }
};