CCXT
TypeScript Examples

Watch New Trades

Watch New Trades — CCXT TypeScript code example.


'use strict';

import ccxt from '../../js/ccxt.js';

console.log ('CCXT Version:', ccxt.version); // eslint-disable-line import/no-named-as-default-member

(async () => {
    const streams = {
        'binance': 'BTC/USDT',
        'okx': 'BTC/USDT',
    };

    await Promise.all (Object.keys (streams).map ((exchangeId) => (async () => {
        const exchange = new ccxt.pro[exchangeId] ({ // eslint-disable-line import/no-named-as-default-member
            'options': {
                'tradesLimit': 100, // lower = better, 1000 by default
            },
        });
        const symbol = streams[exchangeId];
        let lastId = '';
        while (true) { // eslint-disable-line no-constant-condition
            console.log ('---');
            try {
                const trades = await exchange.watchTrades (symbol);
                for (let i = 0; i < trades.length; i++) {
                    const trade = trades[i];
                    if (trade['id'] > lastId) {
                        console.log (exchange.iso8601 (exchange.milliseconds ()), exchange.id, trade['symbol'], trade['id'], trade['datetime'], trade['price'], trade['amount']);
                        lastId = trade['id'];
                    }
                }
            } catch (e) {
                console.log (symbol, e);
            }
        }
    }) ()));
}) ();