braintree payments stream search transactions

payments.js

router.get('/payments', verifyJWT_MW, function(req, res) {
  try {
    let transactions = [];

    const stream = Braintree.gateway.transaction.search(function(search) {
      search.customerId().is(req.user.account.braintreeCustomerId);
    });

    stream.on('ready', function() {
      console.log(stream.searchResponse.length());
    });
    stream.on('data', function(transaction) {
      transactions.push({
        title: 'Topup Credit',
        id: transaction.id,
        status: transaction.status,
        amount: transaction.amount,
        currency: transaction.currencyIsoCode,
        createdAt: transaction.createdAt,
        card: {
          type: transaction.creditCard.cardType,
          last4: transaction.creditCard.last4
        }
      });
    });
    stream.on('error', function(e) {
      throw e;
    });
    stream.on('end', function() {
      res.status(200).json({
        success: true,
        message: 'Successfully retrieved transactions for account.',
        data: transactions
      });
    });
  } catch (error) {
    res.status(500).json({
      success: false,
      message: error.message
    });
  }
});