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62 lines
2.4 KiB
HTML
62 lines
2.4 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<title>CCXT Basic example for the browser</title>
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<script type="text/javascript" src="https://unpkg.com/ccxt"></script>
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<script type="text/javascript" src="https://unpkg.com/lightweight-charts@3.4.0/dist/lightweight-charts.standalone.production.js"></script>
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<script>
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document.addEventListener ("DOMContentLoaded", async function () {
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try {
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const exchange = new ccxt.coinbasepro ({ enableRateLimit: true });
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const symbol = 'ETH/BTC';
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const timeframe = '1d';
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const since = undefined;
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const limit = 600;
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const config = {
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width: 600,
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height: 300,
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priceScale: {
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position: 'left',
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mode: 1,
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autoScale: true,
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invertScale: false,
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},
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timeScale: {
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fixLeftEdge: true,
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lockVisibleTimeRangeOnResize: true,
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rightBarStaysOnScroll: true,
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visible: true,
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timeVisible: true,
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secondsVisible: true,
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},
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crosshair: {
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mode: window.LightweightCharts.CrosshairMode.Normal,
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},
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};
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const chart = window.LightweightCharts.createChart(document.body, config);
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const candleSeries = chart.addCandlestickSeries();
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while (true) {
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try {
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const response = await exchange.fetchOHLCV(symbol, timeframe, since, limit);
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const last = response[response.length - 1]
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const [ timestamp, open, high, low, close ] = last;
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const data = response.map (([ timestamp, open, high, low, close ]) => ({ time: exchange.iso8601 (timestamp), open, high, low, close }));
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candleSeries.setData(data);
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} catch (e) {
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console.log (e.constructor.name, e.message);
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}
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await exchange.sleep (1000);
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}
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} catch (e) {
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alert (e.constructor.name + ' ' + e.message);
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}
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})
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</script>
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</head>
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<body>
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</body>
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</html>
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