Ryan Rutan

@app.route("/webhook", methods=["POST"])
def tradingview_webhook():
    if not request.is_json:
        return jsonify({"success": False, "error": "Request must contain JSON."}), 400

    data = request.get_json()
    if data.get("secret") != WEBHOOK_SECRET:
        logging.warning("Rejected webhook with invalid secret.")
        return jsonify({"success": False, "error": "Unauthorized."}), 401

    signal = (data.get("signal") or "").upper()
    if signal not in ["BUY", "SELL"]:
        return jsonify({"success": False, "error": "Signal must be BUY or SELL."}), 400

    try:
        # BUY -> long, SELL -> short, 2 contracts
        result = execute_futures_order(signal)
        return jsonify({"success": True, "signal": signal, "result": result}), 200
    except Exception as error:
        logging.exception("Trading execution failed.")
        return jsonify({"success": False, "error": str(error)}), 500

// Next.js never rewrites __NEXT_DATA__ on client-side navigation, so
// listing B can load holding listing A's JSON. Fetch this page's own HTML
// in the background and parse a fresh copy; the DOM fallback only runs
// if the fetch genuinely fails.
function ensureRealtorNextDataFetch() {
  const href = window.location.href;
  if (realtorFetchedND.href !== href) {
    realtorFetchedND.href = href;
    realtorFetchedND.state = 'idle';
    realtorFetchedND.json = null;
  }
  if (realtorFetchedND.state !== 'idle') return;
  realtorFetchedND.state = 'pending';
  fetch(href, { credentials: 'same-origin' })
    .then((r) => (r.ok ? r.text() : Promise.reject(new Error('HTTP ' + r.status))))
    .then((html) => {
      if (realtorFetchedND.href !== href) return; // navigated away meanwhile
      const tag = html.indexOf('id="__NEXT_DATA__"');
      if (tag < 0) throw new Error('no __NEXT_DATA__ in fetched HTML');
      const open = html.indexOf('>', tag);
      const close = html.indexOf('</script>', open);
      realtorFetchedND.json = JSON.parse(html.slice(open + 1, close));
      realtorFetchedND.state = 'done';
    })
    .catch(() => {
      if (realtorFetchedND.href === href) realtorFetchedND.state = 'failed';
    });
}