DestructuringWithGet.js

import { get } from 'lodash'
// add second argument to get() where default is wanted
const parsePayment = (payment) => {
  const payerInfo = get(payment, ['payer', 'payer_info'])
  const item = get(payment, 'transactions[0]')
  return {
    id: payment.id,
    created: moment(payment.create_time).format('X'),
    email: get(payerInfo, ['email']),
    firstName: get(payerInfo, ['first_name']),
    lastName: get(payerInfo, ['last_name']),
    state: get(payerInfo, ['shipping_address', 'state']),
    country: get(payerInfo, ['shipping_address', 'country_code']),
    amount: parseInt(get(item, ['amount', 'total']), 0) * 100,
    description: get(item, 'item_list,items[0].name'),
    metadata: {
      quantity: parseInt(get(item, 'item_list,items[0].quantity'), 10)
    }
  }
}