Streaming de données financières en temps réel via WebSocket

Pourquoi utiliser WebSocket

• Updates are pushed as prices change, which is more timely than polling REST on a timer and does not use your per-minute request allowance.
• One connection can subscribe to many symbols, and several connections can subscribe to the same symbol without affecting each other.
• The protocol is compatible with iTick, so existing subscription code only needs a new endpoint.

Format des messages

// Subscribe / unsubscribe. types: tick, quote, depth, kline@1
{"ac":"subscribe","params":"AAPL$US,700$HK","types":"quote,tick"}
{"ac":"unsubscribe","params":"AAPL$US","types":"quote"}

// Heartbeat
{"ac":"ping","params":"1731688569840"}

// Pushed message
{"code":1,"data":{"s":"BTCUSDT","r":"BA","ld":83988.54,"v":0.00019,"type":"tick"}}

Exemple JavaScript

const ws = new WebSocket("wss://api.itick.dev/crypto?token=YOUR_API_KEY");

ws.onopen = () => {
  ws.send(JSON.stringify({ ac: "subscribe", params: "BTCUSDT$BA", types: "quote,tick" }));
  // Send a heartbeat at least every 30 seconds
  setInterval(() => ws.send(JSON.stringify({ ac: "ping", params: String(Date.now()) })), 25000);
};

ws.onmessage = (event) => console.log(event.data);

Marchés pris en charge

Connect to wss://api.itick.dev/{market} where market is stock, forex, crypto, indices, future or fund. Available data depends on your plan.

Limites de connexion et d'abonnement

Concurrent connections per API key per market and symbols per connection are set by your plan; see pricing. The free plan does not include WebSocket by default.

Questions fréquentes (FAQ)