Okex Watch Balance And Create Order

'use strict';
import ccxt from '../../js/ccxt.js';
console.log('CCXT Version:', ccxt.version); // eslint-disable-line import/no-named-as-default-member
const exchange = new ccxt.pro.okx({
   'apiKey': 'YOUR_API_KEY',
   'secret': 'YOUR_API_SECRET',
   'password': 'YOUR_API_PASWORD',
});
async function watchBalance(code) {
   while (true) { // eslint-disable-line no-constant-condition
       const balance = await exchange.watchBalance({
           'code': code,
       });
       console.log('New', code, 'balance is: ', balance[code]);
   }
}
async function createOrder(symbol, type, side, amount, price = undefined, params = {}) {
   console.log('Creating', symbol, type, 'order');
   const order = await exchange.createOrder(symbol, type, side, amount, price, params);
   console.log(symbol, type, side, 'order created');
   console.log(order);
}
(async () => {
   await exchange.loadMarkets();
   console.log(exchange.id, 'markets loaded');
   const symbol = 'ETH/USDT';
   const market = exchange.market(symbol);
   const quote = market['quote'];
   // run in parallel without await
   console.log('Watching', quote, 'balance');
   watchBalance(quote);
   // wait a bit to allow it to subscribe
   await exchange.sleep(3000);
   const ticker = await exchange.watchTicker(symbol);
   const type = 'market';
   const side = 'buy';
   const amount = 0.1;
   const price = ticker['bid'];
   await createOrder(symbol, type, side, amount, price);
})();