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<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>BTC Ticker</title>
<style>
body {
font-family: monospace;
}
</style>
<script>
const socket = new WebSocket("wss://stream.binance.com:9443/stream");
socket.onopen = () => {
socket.send(JSON.stringify({
"method": "SUBSCRIBE",
"params": ["btcusdt@trade"],
"id": 1
}));
};
socket.onmessage = (event) => {
const data = JSON.parse(event.data);
if (data.data !== undefined) {
const d = data.data;
const price = d.p;
const priceElement = document.querySelector("#price");
priceElement.innerText = price;
}
};
</script>
</head>
<body>
<p id="price"></p>
</body>
</html>
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