{ "$schema": "http://json-schema.org/draft-07/schema#", "title": "Transaction Checkout Info", "description": "Checkout-specific fields associated with a transaction.", "type": "object", "properties": { "merchant_code": { "description": "Unique code of the registered merchant to whom the payment is made.", "type": "string", "example": "MH4H92C7" }, "vat_amount": { "description": "Amount of the applicable VAT (out of the total transaction amount).", "type": "number", "format": "float", "example": 6 }, "tip_amount": { "description": "Amount of the tip (out of the total transaction amount).", "type": "number", "format": "float", "example": 3 }, "entry_mode": { "$ref": "#/components/schemas/EntryMode" }, "auth_code": { "description": "Authorization code for the transaction sent by the payment card issuer or bank. Applicable only to card payments.", "type": "string", "example": "053201" } } }