Fetch Create Deposit Address

// @NO_AUTO_TRANSPILE
// ----------------------------------------------------------------------------
// setup
import ccxt from '../../js/ccxt.js';
// ----------------------------------------------------------------------------
// setup
const // change me
defaultCurrencyCode = 'BTC', 
// change me
//                                  currency code specified in commandline args ↓
// you can call this script like node examples/js/fetch-create-deposit-address ETH
exchangeId = 'poloniex', currencyCode = process.argv[3] || defaultCurrencyCode, exchange = new ccxt[exchangeId]({
    'apiKey': 'YOUR_API_KEY',
    'secret': 'YOUR_SECRET',
    'enableRateLimit': true, // ←- required! https://github.com/ccxt/ccxt/wiki/Manual#rate-limit
    // 'verbose': true, // ←- uncomment this for verbose output
    // additional credentials might be required in exchange-specific cases:
    // uid or password for Coinbase Pro, etc...
});
// ----------------------------------------------------------------------------
if (!exchange.has['fetchDepositAddress']) {
    console.log('The exchange does not support fetchDepositAddress() yet');
    process.exit();
}
// ----------------------------------------------------------------------------
;
(async () => {
    try {
        console.log('Trying to fetch deposit address for ' + currencyCode + ' from ' + exchangeId + '...');
        let fetchResult = await exchange.fetchDepositAddress(currencyCode);
        console.log('Successfully fetched deposit address for ' + currencyCode);
        console.log(fetchResult);
    }
    catch (e) {
        // never skip proper error handling, whatever it is you're building
        // actually, with crypto error handling should be the largest part of your code
        if (e instanceof ccxt.InvalidAddress) {
            console.log('The address for ' + currencyCode + ' does not exist yet');
            if (exchange.has['createDepositAddress']) {
                console.log('Attempting to create a deposit address for ' + currencyCode + '...');
                try {
                    const createResult = await exchange.createDepositAddress(currencyCode);
                    // console.log (createResult) // for debugging
                    console.log('Successfully created a deposit address for ' + currencyCode + ', fetching the deposit address now...');
                    try {
                        let fetchResult = await exchange.fetchDepositAddress(currencyCode);
                        console.log('Successfully fetched deposit address for ' + currencyCode);
                        console.log(fetchResult);
                    }
                    catch (e) {
                        console.log('Failed to fetch deposit address for ' + currencyCode, e.constructor.name, e.message);
                    }
                }
                catch (e) {
                    console.log('Failed to create deposit address for ' + currencyCode, e.constructor.name, e.message);
                }
            }
            else {
                console.log('The exchange does not support createDepositAddress()');
            }
        }
        else {
            console.log('There was an error while fetching deposit address for ' + currencyCode, e.constructor.name, e.message);
        }
    }
})();