Node JS and Coinbase

I am trying to integrate Coinbase with Node Js, but I am unable to execute the code given on the tutorial page. My code is

`var coinbase = require('coinbase');
var client   = new coinbase.Client({'apiKey': mykey, 'apiSecret': mysecret});

client.getAccounts({}, function(err, accounts) {
  accounts.forEach(function(acct) {
    console.log('my bal: ' + acct.balance.amount + ' for ' + acct.name);
  });
});`

I get t the following error:

accounts.forEach(account => { ^ typeError: Cannot read property 'forEach' of null Looking forward to your answer! Thanks!

via donfrigo