Transformations

/* Access fields */
customer.name

/* Transform structure */
{
  "fullName": customer.firstName & " " & customer.lastName,
  "orderTotal": items.price ~> $sum()
}

/* Filter arrays */
items[price > 100]

/* Conditional logic */
status = "premium" ? discount * 0.2 : discount * 0.1

(
  $taxRate := 0.08;
  $subtotal := items.price ~> $sum();
  {
    "subtotal": $subtotal,
    "tax": $subtotal * $taxRate,
    "total": $subtotal * (1 + $taxRate)
  }
)