[ADP-321] Omit Empty

Guidelines

• Although null and absent has the same semantic, SHOULD omit optional properties when they are empty or null.
• MUST NOT include null values for optional properties.
• SHOULD consider the semantic difference between an absent property and an explicitly set null value.

Examples

DO

{
  "paymentMethod": "INVOICE_SINGLE"
}

DON'T

{
  "paymentMethod": "INVOICE_SINGLE",
  "installments": null
}