router.post('', passport.withRole('admin'), (req, res) => {
  Promise.all([
    req.body.addresses ? Address.validateAddresses(req.body.addresses) : [],
    req.body.contacts ? Contact.validateContacts(req.body.contacts) : [],
    Vendor.create(req.body)
  ])
    .then(([ validAddresses, validContacts, vendor ]) => {
      return Promise.all([
        validAddresses.length ? Address.createAndSet(req.body.addresses, vendor) : [],
        validContacts.length ? Contact.createAndSet(req.body.contacts, vendor) : [],
      ])
    })
    .then(() => {
      res.status(200).json(vendor)
    })
    .catch(err => {
      res.status(500).json(err)
    })
})