{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://developer.apple.com/schemas/apple-pay/payment-request.json",
  "title": "Apple Pay Payment Request",
  "description": "Represents an ApplePayPaymentRequest used to configure an Apple Pay payment session, specifying the merchant capabilities, supported networks, payment amount, and optional shipping and billing requirements.",
  "type": "object",
  "required": [
    "countryCode",
    "currencyCode",
    "supportedNetworks",
    "merchantCapabilities",
    "total"
  ],
  "properties": {
    "countryCode": {
      "type": "string",
      "description": "The two-letter ISO 3166-1 alpha-2 country code for the merchant's country of operation",
      "pattern": "^[A-Z]{2}$",
      "examples": ["US", "GB", "CA"]
    },
    "currencyCode": {
      "type": "string",
      "description": "The three-letter ISO 4217 currency code for the payment",
      "pattern": "^[A-Z]{3}$",
      "examples": ["USD", "GBP", "EUR"]
    },
    "supportedNetworks": {
      "type": "array",
      "description": "The payment networks the merchant supports",
      "items": {
        "type": "string",
        "enum": [
          "visa",
          "masterCard",
          "amex",
          "discover",
          "jcb",
          "chinaUnionPay",
          "interac",
          "privateLabel",
          "eftpos",
          "cartesBancaires",
          "iD",
          "quicPay",
          "suica",
          "mada",
          "bancomat",
          "bancontact",
          "girocard"
        ]
      },
      "minItems": 1
    },
    "merchantCapabilities": {
      "type": "array",
      "description": "The payment capabilities the merchant supports",
      "items": {
        "type": "string",
        "enum": [
          "supports3DS",
          "supportsEMV",
          "supportsCredit",
          "supportsDebit"
        ]
      },
      "minItems": 1
    },
    "total": {
      "$ref": "#/$defs/LineItem",
      "description": "The total amount for the payment, including the merchant name as the label"
    },
    "lineItems": {
      "type": "array",
      "description": "A list of line items explaining the charges, such as subtotal, tax, discount, and shipping",
      "items": {
        "$ref": "#/$defs/LineItem"
      }
    },
    "requiredBillingContactFields": {
      "type": "array",
      "description": "The billing contact fields required to process the payment",
      "items": {
        "$ref": "#/$defs/ContactField"
      }
    },
    "requiredShippingContactFields": {
      "type": "array",
      "description": "The shipping contact fields required to fulfill the order",
      "items": {
        "$ref": "#/$defs/ContactField"
      }
    },
    "shippingMethods": {
      "type": "array",
      "description": "Available shipping methods for the order",
      "items": {
        "$ref": "#/$defs/ShippingMethod"
      }
    },
    "shippingType": {
      "type": "string",
      "description": "The type of shipping used for this request, which determines the wording on the payment sheet",
      "enum": [
        "shipping",
        "delivery",
        "storePickup",
        "servicePickup"
      ],
      "default": "shipping"
    },
    "shippingContactEditingMode": {
      "type": "string",
      "description": "Controls whether the shipping contact can be edited on the payment sheet",
      "enum": [
        "enabled",
        "storePickup"
      ]
    },
    "applicationData": {
      "type": "string",
      "description": "Base64-encoded application-specific data that is included in the payment token hash for verification"
    },
    "supportedCountries": {
      "type": "array",
      "description": "A list of ISO 3166-1 alpha-2 country codes for cards that can be used for payment. If not specified, all countries are supported",
      "items": {
        "type": "string",
        "pattern": "^[A-Z]{2}$"
      }
    },
    "recurringPaymentRequest": {
      "$ref": "#/$defs/RecurringPaymentRequest"
    },
    "automaticReloadPaymentRequest": {
      "$ref": "#/$defs/AutomaticReloadPaymentRequest"
    },
    "multiTokenContexts": {
      "type": "array",
      "description": "An array of payment token contexts for multi-merchant payments",
      "items": {
        "$ref": "#/$defs/PaymentTokenContext"
      }
    }
  },
  "$defs": {
    "LineItem": {
      "type": "object",
      "required": ["label", "amount"],
      "properties": {
        "label": {
          "type": "string",
          "description": "A short, localized description of the line item"
        },
        "amount": {
          "type": "string",
          "description": "The monetary amount of the line item as a string with decimal notation",
          "pattern": "^-?\\d+\\.\\d{2}$"
        },
        "type": {
          "type": "string",
          "enum": ["final", "pending"],
          "default": "final",
          "description": "Whether this is a final or pending amount"
        },
        "paymentTiming": {
          "type": "string",
          "enum": [
            "immediate",
            "recurring",
            "deferred",
            "automaticReload"
          ],
          "description": "When the payment will be taken"
        },
        "recurringPaymentStartDate": {
          "type": "string",
          "format": "date-time",
          "description": "The start date for recurring payments"
        },
        "recurringPaymentIntervalUnit": {
          "type": "string",
          "enum": ["year", "month", "day", "hour", "minute"],
          "description": "The interval unit for recurring payments"
        },
        "recurringPaymentIntervalCount": {
          "type": "integer",
          "minimum": 1,
          "description": "The number of interval units between recurring payments"
        },
        "recurringPaymentEndDate": {
          "type": "string",
          "format": "date-time",
          "description": "The end date for recurring payments"
        },
        "deferredPaymentDate": {
          "type": "string",
          "format": "date-time",
          "description": "The date for a deferred payment"
        },
        "automaticReloadPaymentThresholdAmount": {
          "type": "string",
          "description": "The balance threshold that triggers an automatic reload"
        }
      }
    },
    "ContactField": {
      "type": "string",
      "enum": [
        "email",
        "name",
        "phone",
        "postalAddress",
        "phoneticName"
      ],
      "description": "A contact field that can be requested from the user"
    },
    "ShippingMethod": {
      "type": "object",
      "required": ["label", "detail", "amount", "identifier"],
      "properties": {
        "label": {
          "type": "string",
          "description": "A short description of the shipping method"
        },
        "detail": {
          "type": "string",
          "description": "A longer description of the shipping method"
        },
        "amount": {
          "type": "string",
          "description": "The cost of the shipping method",
          "pattern": "^-?\\d+\\.\\d{2}$"
        },
        "identifier": {
          "type": "string",
          "description": "A unique identifier for the shipping method"
        },
        "dateComponentsRange": {
          "type": "object",
          "description": "Estimated delivery date range",
          "properties": {
            "startDateComponents": {
              "$ref": "#/$defs/DateComponents"
            },
            "endDateComponents": {
              "$ref": "#/$defs/DateComponents"
            }
          }
        }
      }
    },
    "DateComponents": {
      "type": "object",
      "properties": {
        "era": { "type": "integer" },
        "year": { "type": "integer" },
        "month": { "type": "integer" },
        "day": { "type": "integer" },
        "hours": { "type": "integer" },
        "minutes": { "type": "integer" },
        "seconds": { "type": "integer" },
        "calendar": { "type": "string" }
      }
    },
    "RecurringPaymentRequest": {
      "type": "object",
      "required": [
        "paymentDescription",
        "regularBilling",
        "managementURL"
      ],
      "description": "Configuration for recurring payments",
      "properties": {
        "paymentDescription": {
          "type": "string",
          "description": "A description of the recurring payment"
        },
        "regularBilling": {
          "$ref": "#/$defs/LineItem",
          "description": "The regular billing amount and interval"
        },
        "trialBilling": {
          "$ref": "#/$defs/LineItem",
          "description": "The trial billing amount and interval, if applicable"
        },
        "billingAgreement": {
          "type": "string",
          "description": "A localized billing agreement for display to the user"
        },
        "managementURL": {
          "type": "string",
          "format": "uri",
          "description": "A URL to manage the recurring payment"
        },
        "tokenNotificationURL": {
          "type": "string",
          "format": "uri",
          "description": "A URL for receiving lifecycle notifications for the merchant token"
        }
      }
    },
    "AutomaticReloadPaymentRequest": {
      "type": "object",
      "required": [
        "paymentDescription",
        "automaticReloadBilling",
        "managementURL"
      ],
      "description": "Configuration for automatic reload payments (e.g., store cards)",
      "properties": {
        "paymentDescription": {
          "type": "string",
          "description": "A description of the automatic reload payment"
        },
        "automaticReloadBilling": {
          "$ref": "#/$defs/LineItem",
          "description": "The automatic reload billing amount"
        },
        "billingAgreement": {
          "type": "string",
          "description": "A localized billing agreement for display"
        },
        "managementURL": {
          "type": "string",
          "format": "uri",
          "description": "A URL to manage the automatic reload"
        },
        "tokenNotificationURL": {
          "type": "string",
          "format": "uri",
          "description": "A URL for receiving lifecycle notifications"
        }
      }
    },
    "PaymentTokenContext": {
      "type": "object",
      "required": [
        "merchantIdentifier",
        "externalIdentifier",
        "merchantName",
        "merchantDomain",
        "amount"
      ],
      "description": "Context for multi-merchant payment tokens",
      "properties": {
        "merchantIdentifier": {
          "type": "string",
          "description": "The merchant identifier for this context"
        },
        "externalIdentifier": {
          "type": "string",
          "description": "An external identifier for the merchant"
        },
        "merchantName": {
          "type": "string",
          "description": "The merchant's display name"
        },
        "merchantDomain": {
          "type": "string",
          "description": "The merchant's domain"
        },
        "amount": {
          "type": "string",
          "description": "The amount for this merchant's portion"
        }
      }
    }
  }
}