Please help me fix this WS issue from coinbase price feed.

[asseph]

🏷️ Discussion Type

Bug

Body

2026-05-05T20:37:29.249523Z  WARN Coinbase WS read error error=WebSocket protocol error: Connection reset without closing handshake
2026-05-05T20:37:29.249542Z  INFO Coinbase WS reconnecting in 2s

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[endovix]

1. Implement heartbeat (CRITICAL)

const ws = new WebSocket(url);

function heartbeat() {
  clearTimeout(this.pingTimeout);
  this.pingTimeout = setTimeout(() => {
    ws.terminate(); // force reconnect
  }, 30000);
}

ws.on('open', () => {
  ws.ping();
});

ws.on('pong', heartbeat);

ws.on('close', () => {
  reconnect();
});

2. Add robust reconnect logic (you already started 👍)

let retry = 0;

function reconnect() {
  const delay = Math.min(1000 * 2 ** retry, 30000); // exponential backoff
  setTimeout(connect, delay);
  retry++;
}

3. Resubscribe after reconnect (IMPORTANT)

{
  "type": "subscribe",
  "channels": ["ticker", "level2"],
  "product_ids": ["BTC-USD"]
}

[asseph]

Thanks, Endovix