Gateio Watch Order Book

'use strict';
import ccxt from '../../js/ccxt.js';
console.log('CCXT Version:', ccxt.version); // eslint-disable-line import/no-named-as-default-member
const orderbooks = {};
async function watchAllSymbols(exchange, symbols) {
    while (true) { // eslint-disable-line no-constant-condition
        const keys = Object.keys(orderbooks);
        if (symbols.length === keys.length) {
            console.log('\n\n\n\n\n');
            console.log('----------------------------------------------------');
            console.log('All orderbooks received at least one update:');
            for (let i = 0; i < symbols.length; i++) {
                const symbol = symbols[i];
                const orderbook = orderbooks[symbol];
                console.log(exchange.iso8601(exchange.milliseconds()), orderbook['datetime'], orderbook['nonce'], symbol, orderbook['asks'][0], orderbook['bids'][0]);
            }
            console.log('----------------------------------------------------');
            console.log('\n\n\n\n\n');
            // process.exit () // stop here if you want
            break;
        }
        else {
            await exchange.sleep(1000);
        }
    }
}
async function watchOrderBook(exchange, symbol) {
    while (true) { // eslint-disable-line no-constant-condition
        try {
            const orderbook = await exchange.watchOrderBook(symbol);
            orderbooks[symbol] = orderbook;
            console.log(exchange.iso8601(exchange.milliseconds()), orderbook['datetime'], orderbook['nonce'], symbol, orderbook['asks'][0], orderbook['bids'][0]);
        }
        catch (e) {
            console.log(e);
        }
    }
}
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 = [
        // 'SOS/USDT:USDT',
        // 'JASMY/USDT:USDT',
        // 'SLP/USDT:USDT',
        'ACH/USDT:USDT',
        'MKISHU/USDT:USDT',
        // 'GMT/USDT:USDT',
        // 'ASTR/USDT:USDT',
        'RAMP/USDT:USDT',
        'RSR/USDT:USDT',
        // 'RACA/USDT:USDT',
        // 'ROOK/USDT:USDT',
        // 'ROSE/USDT:USDT',
    ];
    await Promise.all([
        watchAllSymbols(exchange, symbols),
        ...symbols.map((symbol) => watchOrderBook(exchange, symbol)),
    ]);
}
main();