Pinnacle odds WebSocket Node.js reconnect

Answer: on close, wait min(delay*2, 30000) + jitter ms, open a new socket, resend subscribe, and rebuild state from the fresh snapshot (clear maps when part === 1). Always reply to server ping with {"type":"pong"} or the server closes you after ~60 s. Builder plan required (€99/mo). Canonical file: stream.mjs in the Python/Node guide.

Reconnect pattern#

// Example — npm install ws; export PINNFEED_KEY=...
import WebSocket from 'ws';

const WS_URL = process.env.PINNFEED_WS || 'wss://pinnfeed.io/v1/stream';
const KEY = process.env.PINNFEED_KEY;
const events = new Map();
const markets = new Map();

function connect(delay = 1000) {
  const ws = new WebSocket(WS_URL, { headers: { 'x-api-key': KEY } });
  ws.on('open', () => {
    delay = 1000;
    ws.send(JSON.stringify({
      type: 'subscribe',
      sports: ['soccer', 'tennis'],
      markets: ['moneyline'],
      main: true,
      specials: false,
    }));
  });
  ws.on('message', (raw) => {
    const msg = JSON.parse(raw);
    if (msg.type === 'ping') return ws.send('{"type":"pong"}');
    if (msg.type === 'snapshot') {
      if (msg.part === 1) { events.clear(); markets.clear(); }
      msg.events.forEach((e) => events.set(e.id, e));
      msg.markets.forEach((m) => markets.set(m.id, m));
      if (msg.final) console.log(`book ready: ${events.size} events, ${markets.size} markets`);
    }
    // apply deltas the same way as in the full stream.mjs
  });
  ws.on('close', (code) => {
    const wait = Math.min(delay * 2, 30000);
    console.log(`closed (${code}); reconnecting in ${wait / 1000}s`);
    setTimeout(() => connect(wait), wait + Math.random() * 1000);
  });
}
connect();

Close code 1001 (server_shutdown) means a deploy — reconnect with backoff (WebSocket docs). Do not stampede: jitter matters.

Trial CTA#

Start Builder — 3-day trial; card required, charged after day 3 unless cancelled. Related: Python example.

Questions people ask#

Should I reuse the same Map across reconnects?#

Clear on the first snapshot part (part === 1). Otherwise you keep markets the new snapshot never mentioned.

Can Hobby reconnect to the stream?#

Hobby has no WebSocket. You will get 403 plan_lacks_ws before any reconnect logic runs.

Is this educational content for adults?#

Yes (18+).