Hyperliquid liquidation alerts to Discord, Slack, Telegram or a webhook

curl -X POST https://api.ironflow.sh/v1/alerts \
  -H "Authorization: Bearer if_your_key" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "BTC and ETH longs",
    "url": "https://discord.com/api/webhooks/123/abc",
    "markets": ["BTC", "ETH"],
    "side": "long",
    "min_usd": 100000
  }'

curl -X POST https://api.ironflow.sh/v1/alerts/ALERT_ID/test -H "Authorization: Bearer if_your_key"

curl -X POST https://api.ironflow.sh/v1/alerts \
  -H "Authorization: Bearer if_your_key" \
  -H "Content-Type: application/json" \
  -d '{"telegram_chat": "@my_liquidations", "markets": "BTC,ETH", "min_usd": 250000}'

BTC-PERP long liquidated: $1.24M at 80355, 0x1234…abcd

{
  "type": "liquidations",
  "alert_id": "6f1c...",
  "alert_name": "BTC and ETH longs",
  "sent_at": "2026-11-05T14:02:11Z",
  "liquidations": [
    {
      "id": "1793887329104-2214",
      "time_ms": 1793887329104,
      "time": "2026-11-05T14:02:09Z",
      "market": "BTC-PERP",
      "side": "long",
      "address": "0x1234...abcd",
      "size": 15.4,
      "price": 80355.2,
      "usd": 1237470,
      "fills": 3,
      "hash": "0x9a..."
    }
  ],
  "more": 0,
  "more_usd": 0
}

import hashlib, hmac, time

def verify(secret: str, header: str, body: bytes) -> bool:
    parts = dict(p.split("=", 1) for p in header.split(","))
    if abs(time.time() - int(parts["t"])) > 300:
        return False
    mac = hmac.new(secret.encode(), f"{parts['t']}.".encode() + body, hashlib.sha256)
    return hmac.compare_digest(mac.hexdigest(), parts["v1"])

import crypto from "node:crypto";

export function verify(secret, header, rawBody) {
  const parts = Object.fromEntries(header.split(",").map((p) => p.split("=")));
  if (Math.abs(Date.now() / 1000 - Number(parts.t)) > 300) return false;
  const mac = crypto.createHmac("sha256", secret).update(`${parts.t}.`).update(rawBody).digest("hex");
  return typeof parts.v1 === "string" && parts.v1.length === mac.length &&
    crypto.timingSafeEqual(Buffer.from(mac), Buffer.from(parts.v1));
}