get Satang and Bitkub Exchange rate

ExchangeRate.js

async function getExchangeRate(pair, start, end) {
    return {
        Satang: await getSatangExchangeRate(pair, start, end),
        Bitkub: await getBitkubExchangeRate(pair, start, end)
    }
}
async function getSatangExchangeRate(pair, start, end) {
    start = start.getTime() - 86399999;
    end = end.getTime() + 86400000;

    let r = await fetch(`https://satangcorp.com/api/v3/klines?symbol=${pair.toUpperCase()}&interval=1d&startTime=${start}&endTime=${end}&limit=500`);
    let list = await r.json();

    return list.map(i => {
        return {
            from: new Date(i[0]),
            from_ms: i[0],
            to: new Date(i[6]),
            to_ms: i[6],
            O: +i[1],
            H: +i[2],
            L: +i[3],
            C: +i[4],
            V: +i[5]
        }
    });
}

async function getBitkubExchangeRate(pair, start, end) {
    start = Math.floor(start.getTime() / 1000);
    end = Math.floor(end.getTime() / 1000);

    let r = await fetch(`https://tradingview.bitkub.com/tradingview/history?symbol=${pair.toUpperCase()}&resolution=1D&from=${start}&to=${end}`);
    let list = await r.json();

    return list.t.map((d, i) => {
        d = d * 1000;
        return {
            from: new Date(d),
            from_ms: d,
            to: new Date(d + 86399999),
            to_ms: d + 86399999,
            O: list.o[i],
            H: list.h[i],
            L: list.l[i],
            C: list.c[i],
            V: list.v[i]
        }
    });
}

sample usage

console.log(await getExchangeRate('jfin_thb', new Date('2021-01-01'), new Date()));

O = Open
H = Highest
L = Lowest
C = Close
V = Volume