Conditional operations

// Customer email to look up
let email = "alice.appleseed@example.com"

// Customer data to upsert
let data = {
  name: "Alice Appleseed",
  email: "alice.appleseed@example.com",
  address: {
    street: "87856 Mendota Court",
    city: "Washington",
    state: "DC",
    postalCode: "20220",
    country: "US"
  }
}

// Try to find the existing customer by email.
// If the customer doesn't exist, returns `null`.
let customer = Customer.byEmail(email).first()

// Create or update the customer
// based on existence.
if (customer == null) {
  Customer.create(data)
} else {
  customer!.update(data)
}