MasterCard Payment Gateway API Reference: Operations -
Version 25,
Protocol: REST-JSON

Open Wallet

Depending on the wallet provider, this operation initiates a wallet interaction or retrieves the payer's payment details associated with a wallet interaction.

For the MasterPass Online wallet, use this operation to initiate a wallet interaction. Use the URL provided in the response to redirect the payer's browser to the MasterPass Online website. The interaction details (including the return, redirect and cancel URLs) and the payment details collected at MasterPass Online will be stored against the payment session identified in the request.
For the Visa Checkout wallet, provide the callId returned by the Visa Checkout Lightbox to retrieve the payer's payment details associated with the Visa Checkout interaction. The retrieved payment details are stored against the payment session identified in the request.

URL https://ap-gateway.mastercard.com/api/rest/version/25/merchant/{merchantId}/session/{sessionId}
HTTP Method POST
Authentication This operation requires authentication via one of the following methods:
  • Certificate authentication.
  • Basic HTTP authentication as described at w3.org. Provide 'merchant.<your gateway merchant ID>' in the userid portion and your API password in the password portion.

Request Parameters

order   = COMPULSORY

order
Fixed value

order.walletProvider  Enumeration = COMPULSORY

Select the wallet provider for this interaction.
Existence
COMPULSORY
Fixed value
Validation Rules
JSON type
String
Value must be a member of the following list. The values are case sensitive.
MASTERPASS_ONLINE
MasterPass Online wallet provider.
VISA_CHECKOUT
Visa Checkout wallet provider.

correlationId  String = OPTIONAL

A transient identifier for the request, that can be used to match the response to the request.
The value provided is not validated, does not persist in the gateway, and is returned as provided in the response to the request.
Existence
OPTIONAL
Fixed value
Validation Rules
Data can consist of any characters
XSD type
string
minimum length
1
maximum length
100

order   = COMPULSORY

order
Fixed value

order.amount  Decimal = OPTIONAL

The total amount for the order.
If you provide both this value and any of the sub-total amounts (order.itemAmount, order.shippingAndHandlingAmount, order.taxAmount) then the sum of the sub-total amounts MUST equal the order.amount.
Existence
OPTIONAL
Fixed value
Validation Rules
Data is a string that consists of the characters 0-9 and '.' and represents a valid decimal number.
JSON type
String
minimum length
1
maximum length
14

order.currency  Upper case alphabetic text = OPTIONAL

The currency of the order expressed as an ISO 4217 alpha code, e.g. USD.
Existence
OPTIONAL
Fixed value
Validation Rules
Data must consist of the characters A-Z
JSON type
String
minimum length
3
maximum length
3

order.description  String = OPTIONAL

Short textual description of the contents of the order.
Existence
OPTIONAL
Fixed value
Validation Rules
Data can consist of any characters
JSON type
String
minimum length
1
maximum length
127

order.shippingAndHandlingAmount  Decimal = OPTIONAL

The total shipping and handling amount for the order.
Existence
OPTIONAL
Fixed value
Validation Rules
Data is a string that consists of the characters 0-9 and '.' and represents a valid decimal number.
JSON type
String
minimum length
1
maximum length
14

order.taxAmount  Decimal = OPTIONAL

The total tax amount for the order.
If you do not provide this value but provide line item data, then this amount is calculated as the sum of the item.quantity times the item.unitTaxAmount for all the line items (total tax amount).
If you provide both this value and line item data, then the order.taxAmount MUST equal the total tax amount.
This data may be used to qualify for better interchange rates on corporate purchase card transactions.
Existence
OPTIONAL
Fixed value
Validation Rules
Data is a string that consists of the characters 0-9 and '.' and represents a valid decimal number.
JSON type
String
minimum length
1
maximum length
14

order.walletProvider  Enumeration = COMPULSORY

Select the wallet provider for this interaction.
Existence
COMPULSORY
Fixed value
Validation Rules
JSON type
String
Value must be a member of the following list. The values are case sensitive.
MASTERPASS_ONLINE
MasterPass Online wallet provider.
VISA_CHECKOUT
Visa Checkout wallet provider.

wallet.cancelURL  Url = OPTIONAL

The URL to which you want the payer's browser to be redirected if the payer cancels the interaction on the wallet provider's website.
Mandatory for the MASTERPASS_ONLINE Wallet Provider.
Existence
OPTIONAL
Fixed value
Validation Rules
Ensure that the URL begins with 'https' and is longer than 11 characters.
JSON type
String

wallet.returnURL  Url = OPTIONAL

The URL to which you want the payer's browser to be redirected after completing the interaction on the wallet provider's website.
To check the success or otherwise of the interaction use the Retrieve Session operation. Mandatory for the MASTERPASS_ONLINE Wallet Provider.
Existence
OPTIONAL
Fixed value
Validation Rules
Ensure that the URL begins with 'https' and is longer than 11 characters.
JSON type
String

wallet.visaCheckout.callId  String = OPTIONAL

Provide the value of the field callId as returned by the Visa Checkout lightbox.
The gateway will use this, to retrieve the payer's payment details for the respective interaction from Visa Checkout and store them against the payment session (identified in field session.id). Mandatory for the VISA_CHECKOUT Wallet Provider.
Existence
OPTIONAL
Fixed value
Validation Rules
Data can consist of any characters
JSON type
String
minimum length
1
maximum length
48

{merchantId}  Alphanumeric + additional characters COMPULSORY

The unique identifier issued to you by your payment provider.
Existence
COMPULSORY
Validation Rules
Data may consist of the characters 0-9, a-z, A-Z, '-', '_'
XSD type
string
minimum length
1
maximum length
40

{sessionId}  ASCII Text COMPULSORY

The identifier for the payment session as returned by the Create Session operation.The interaction details (including the return, redirect and cancel URLs) and the payment details collected at the wallet provider, following a successful interaction, will be stored against this session.
Existence
COMPULSORY
Validation Rules
Data consists of ASCII characters
XSD type
string
minimum length
31
maximum length
35

Response Parameters

merchant  Alphanumeric + additional characters = Always Provided

The unique identifier issued to you by your payment provider.
Existence
Always Provided
Fixed value
Validation Rules
Data may consist of the characters 0-9, a-z, A-Z, '-', '_'
JSON type
String
minimum length
1
maximum length
40

order   = Always Provided

order
Fixed value

order.walletProvider  Enumeration = Always Provided

Select the wallet provider for this interaction.
Existence
Always Provided
Fixed value
Validation Rules
JSON type
String
Value must be a member of the following list. The values are case sensitive.
MASTERPASS_ONLINE
MasterPass Online wallet provider.
VISA_CHECKOUT
Visa Checkout wallet provider.

result  Enumeration = Always Provided

A system-generated high level overall result of the operation.
Existence
Always Provided
Fixed value
Validation Rules
JSON type
String
Value must be a member of the following list. The values are case sensitive.
ERROR
ERROR
SUCCESS
SUCCESS

session.id  ASCII Text = Always Provided

session carrying the details to be used by the operation rather than the details being provided in the request.
The payment details collected at the wallet provider will be stored against this session.
Existence
Always Provided
Fixed value
Validation Rules
Data consists of ASCII characters
JSON type
String
minimum length
31
maximum length
35

Response parameters are the same as Session: Retrieve Session

error   = CONDITIONAL

Information on possible error conditions that may occur while processing an operation using the API.
Fixed value

error.cause  Enumeration = CONDITIONAL

Broadly categorizes the cause of the error.
For example, errors may occur due to invalid requests or internal system failures.
Fixed value
Validation Rules
JSON type
String
Value must be a member of the following list. The values are case sensitive.
INVALID_REQUEST
The request was rejected because it did not conform to the API protocol.
REQUEST_REJECTED
The request was rejected due to security reasons such as firewall rules, expired certificate, etc.
SERVER_BUSY
The server did not have enough resources to process the request at the moment.
SERVER_FAILED
There was an internal system failure.

error.explanation  String = CONDITIONAL

Textual description of the error based on the cause.
This field is returned only if the cause is INVALID_REQUEST or SERVER_BUSY.
Fixed value
Validation Rules
Data can consist of any characters
JSON type
String
minimum length
1
maximum length
1000

error.field  String = CONDITIONAL

Indicates the name of the field that failed validation.
This field is returned only if the cause is INVALID_REQUEST and a field level validation error was encountered.
Fixed value
Validation Rules
Data can consist of any characters
JSON type
String
minimum length
1
maximum length
100

error.supportCode  String = CONDITIONAL

Indicates the code that helps the support team to quickly identify the exact cause of the error.
This field is returned only if the cause is SERVER_FAILED or REQUEST_REJECTED.
Fixed value
Validation Rules
Data can consist of any characters
JSON type
String
minimum length
1
maximum length
100

error.validationType  Enumeration = CONDITIONAL

Indicates the type of field validation error.
This field is returned only if the cause is INVALID_REQUEST and a field level validation error was encountered.
Fixed value
Validation Rules
JSON type
String
Value must be a member of the following list. The values are case sensitive.
INVALID
The request contained a field with a value that did not pass validation.
MISSING
The request was missing a mandatory field.
UNSUPPORTED
The request contained a field that is unsupported.

result  Enumeration = CONDITIONAL

A system-generated high level overall result of the operation.
Fixed value
Validation Rules
JSON type
String
Value must be a member of the following list. The values are case sensitive.
ERROR
The operation resulted in an error and hence cannot be processed.

Copyright © 2023 MasterCard