Gateio Swap Watch Many Orderbooks

'use strict';

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

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

async function loop (exchange, method, symbol) {
    while (true) {
        try {
            const orderbook = await exchange[method] (symbol);
            console.log (exchange.iso8601 (exchange.milliseconds ()), orderbook['datetime'], orderbook['nonce'], symbol, orderbook['asks'][0], orderbook['bids'][0]);
        } catch (e: any) {
            console.log (e.constructor.name, e.message);
        }
    }
}

async function main () {
    const exchange = new ccxt.pro.gate ({
        'options': { 'defaultType': 'swap' },
    });
    await exchange.loadMarkets ();
    // exchange.verbose = true // uncomment for debugging purposes if necessary
    const symbols = [
        'ANC/USDT:USDT',
    ];
    await Promise.all (symbols.map ((symbol) => loop (exchange, 'fetchOrderBook', symbol)));
}

main ();