Untitled

module.exports.retrieveUpcoming = (customer, subscription, cancelationDate) => {
  let data = {
    customer: customer.cus_id,
    subscription: subscription.id,
    subscription_prorate: true,
    subscription_proration_date: cancelationDate
  };
  logger.log("info", "retrieving upcoming invoice", data);

  return stripe.invoices.retrieveUpcoming(data);
};


data =
{ customer: 'cus_CmdkVrLVlJYs5V',
  subscription: 'sub_Cmdkafyzz6TZ0j',
  subscription_prorate: true,
  subscription_proration_date: 1525291693183 }