VGS Tokenization Configuration

This section outlines how to configure VGSTextField to create aliases (tokenize data) using the VGS Vault API.

Inbound Route setup

To begin using the Vault API with the VGS Collect SDK, you must first establish an Inbound connection. Navigate to the Dashboard and create a new Inbound Route. Configure the Upstream Host to forward requests to your preferred Vault API (v1 or v2).

Tokenization Configurations

To tokenize data from VGSTextField, use one of the available tokenization configuration types:

Field Type	Tokenization Configuration Type
.cardNumber	VGSCardNumberTokenizationConfiguration
.cvc	VGSCVCTokenizationConfiguration
.expDate	VGSExpDateTokenizationConfiguration
.cardHolderName	VGSCardHolderNameTokenizationConfiguration
.ssn	VGSSSNTokenizationConfiguration
.date	VGSDateTokenizationConfiguration
.none	VGSTokenizationConfiguration

These configurations extend VGSConfiguration and introduce additional tokenizationParameters required for interacting with the Vault API.

/// `VGSTokenizationConfiguration` - Generic configuration for fields with arbitrary data. Required for Vault API usage.
public class VGSTokenizationConfiguration: VGSConfiguration {
  
  /// `VGSTokenizationParameters` - Tokenization parameters configuration.
  public var tokenizationParameters = VGSTokenizationParameters()
}

Some advanced features such as fieldName policies are not supported by the Vault API.

Tokenization Parameters

VGSTokenizationParametersProtocol defines the parameters required to describe how field input should be tokenized:

/// Describes tokenization behavior for text field input.
public protocol VGSTokenizationParametersProtocol {
  ///  The format of the tokenized alias.
  var format: String { get }
  /// The storage type (PERSISTENT or VOLATILE).
  var storage: String  { get }
}

Tokenization format

The tokenization format defines how the alias will appear in the response. Each field has a default format set by the SDK, which can be overridden if necessary.

Field Type	Default Format
.cardNumber	FPE_SIX_T_FOUR
.cvc	NUM_LENGTH_PRESERVING
.expDate	UUID
.cardHolderName	UUID
.ssn	UUID
.date	UUID
.none	UUID

Tokenization storage

VGS supports two storage types: PERSISTENT and VOLATILE. Available values are defined in the VGSVaultStorageType enum.

Field Type	Default Storage
.cardNumber	PERSISTENT
.cvc	VOLATILE
.expDate	PERSISTENT
.cardHolderName	PERSISTENT
.ssn	PERSISTENT
.date	PERSISTENT
.none	PERSISTENT

While most fields allow you to customize storage type, this setting cannot be changed for .cvc and .cardNumber.

Code example

/// Use VGSCVCTokenizationConfiguration with predefined tokenization parameters
let cvcConfiguration = VGSCVCTokenizationConfiguration(collector: vgsCollect, fieldName: "card_cvc")
cvcCardNum.configuration = cvcConfiguration

/// Use VGSCardNumberTokenizationConfiguration and override tokenization format
let cardConfiguration = VGSCardNumberTokenizationConfiguration(collector: vgsCollect, fieldName: "card_number")
cardConfiguration.tokenizationParameters.format = VGSVaultAliasFormat.UUID.rawValue
cardNumber.configuration = cardConfiguration

See also:

• Tokenize Data

• UI Components