مستندات API قیمت زرنرخ

curl -H "X-API-KEY: کلید‌شما" \
  https://api.zarnerkh.ir/v1/prices

const res = await fetch('https://api.zarnerkh.ir/v1/prices', {
  headers: { 'X-API-KEY': 'کلید‌شما' }
});
const data = await res.json();
console.log(data.groups.sekke.items);

const ws = new WebSocket(
  'wss://api.zarnerkh.ir/ws?api_key=کلید‌شما'
);
const prices = new Map();
ws.onmessage = (e) => {
  const msg = JSON.parse(e.data);
  if (msg.type === 'snapshot') {
    for (const g of Object.values(msg.data.groups))
      for (const it of g.items) prices.set(it.id, it);
  } else if (msg.type === 'update') {
    for (const it of msg.items) prices.set(it.id, it);
  }
  // هر آیتم دارای change / dir / changed_at برای فلش‌زدن است
};

{
  "success": true,
  "updated_at": "2026-07-02T14:48:38+03:30",
  "unit": "toman",
  "products_count": 39,
  "stale": false,
  "groups": {
    "sekke": {
      "key": "sekke", "label": "سکه",
      "items": [{
        "id": 7, "code": "11", "name": "سکه تمام امامی 86",
        "buy": 176800000, "sell": 175900000, "base": 176350000,
        "buy_enabled": true, "sell_enabled": false,
        "change": 450000, "change_percent": 0.26, "dir": "up",
        "updated_at": "2026-07-02T14:48:01+03:30",
        "changed_at": "2026-07-02T14:48:38+03:30"
      }]
    }
  }
}