Message Data

Whether inside event data, or as an argument passed to a supplied callback, the data structure will always arrive in this format:

{
    type: 'validation', 'tokenization' | 'cardType'
    fieldName: 'cardNumber' | 'cardCvv' | 'cardExpiry',
    success: boolean,
    message: string,
    paymentToken: string
}

`type`	`'validation'` \| `'tokenization'` \| `'cardType'`	the type of message
`fieldName`	`'cardNumber' \| 'cardCvv' \| 'cardExpiry'`
`success`	boolean	result of an action. Eg validation or tokenization
`message`	string	Optional. Eg for validation, might include a validation error string.
`paymentToken`	string	The same paymentToken to be used in the sale API.
`cardTypeData`	CardTypeData	Only applies if the type is `cardType`

CardTypeData

This is only useful for receiving the detected card type from the user:

typeData?: {
    niceType: string;      // Human-readable card type (e.g., "Visa")
    type: string;          // Card type code
    patterns: number[] | [number[]];  // Valid number patterns
    gaps: number[];        // Positions of gaps in card number
    lengths: number[];     // Valid card number lengths
    code: {
        size: number;      // CVV length
        name: string;      // CVV field name (e.g., "CVV")
    };
    matchStrength?: number; // Confidence of card type match
};