SDK Methods

Method	Description
`new LiteCheckout(..)`	Initializes the SDK with configuration like `apiKey` and `returnUrl`.
`configureCheckout(..)`	Configures customer email and secure token for card management operations.
`setPaymentData(data)`	Loads the customer data (name, email, etc.) into the SDK instance.
`setCartTotal(total)`	Sets the total amount for the transaction.
`payment(cardData)`	Processes a payment with the provided card data from your custom form.
`saveCustomerCard(cardData)`	Saves a customer’s card for future use.
`getCustomerCards()`	Retrieves all saved cards for the customer.
`removeCustomerCard(cardId)`	Removes a saved card by its ID.

LiteCheckout Constructor

Creates a new instance of the LiteCheckout class with the necessary configuration for secure payment processing. This constructor establishes the connection with Tonder’s services and configures the payment environment.

Parameter	Type	Description
`apiKey`	String	Your Tonder API key for authentication
`returnUrl`	String	URL where users are redirected after payment completion

Here’s an example of how to initialize the LiteCheckout class:

LiteCheckout(
  apiKey: "YOUR_API_KEY",
  returnUrl: "YOUR_RETURN_URL",
)

configureCheckout

Sets customer email and the secure token required for card management operations.

Parameter	Type	Description
`customerEmail`	String	Customer’s email address
`secureToken`	String	Secure token obtained from your backend (required for card operations)

Here’s an example:

_liteCheckout.configureCheckout(
  customerEmail: 'customer@example.com',
  secureToken: 'SECURE_TOKEN_FROM_BACKEND',
);

setPaymentData

Configures the customer information that will be used during the payment process. This data is used to associate the transaction with the customer.

Parameter	Type	Description
`data`	Map<String, dynamic>	Customer information including name, email, etc.

Here’s an example of how to set the customer data:

final customerData = {
  'first_name': 'Juan',
  'last_name': 'Pérez',
  'email': 'juan.perez@example.com'
};
_liteCheckout.setPaymentData(customerData);

setCartTotal

Sets the total amount for the transaction. This value is used for payment processing.

Parameter	Type	Description
`total`	int	Total amount in cents (e.g., 399 for $3.99)

Here’s an example of how to set the cart total:

_liteCheckout.setCartTotal(399); // $3.99

payment

Processes a payment using the provided card data collected from your custom form.

Parameter	Type	Description
`cardData`	Map<String, dynamic>	Card information collected from your custom UI

Here’s an example of how to process a payment:

final cardData = {
  'card_number': '4111111111111111',
  'cardholder_name': 'John Doe',
  'expiration_month': '12',
  'expiration_year': '25',
  'cvv': '123',
};

try {
  final response = await _liteCheckout.payment(cardData);
  print('Payment successful: $response');
} catch (error) {
  print('Payment failed: $error');
}

saveCustomerCard

Securely tokenizes and saves new card details for the customer.

Parameter	Type	Description
`cardData`	Map<String, dynamic>	Card information to be saved

Here’s an example:

final cardData = {
  'card_number': '4111111111111111',
  'cardholder_name': 'John Doe',
  'expiration_month': '12',
  'expiration_year': '25',
  'cvv': '123',
};

try {
  final response = await _liteCheckout.saveCustomerCard(cardData);
  print('Card saved successfully: $response');
} catch (error) {
  print('Error saving card: $error');
}

getCustomerCards

Retrieves a list of saved cards for the configured customer.

Parameter	Type	Description
None	-	This method takes no parameters

Here’s an example:

try {
  final cards = await _liteCheckout.getCustomerCards();
  print('Saved cards: $cards');
  // Display cards in your custom UI
} catch (error) {
  print('Error loading cards: $error');
}

removeCustomerCard

Deletes a previously saved card using its unique ID.

Parameter	Type	Description
`cardId`	String	Unique identifier of the card to remove

Here’s an example:

try {
  await _liteCheckout.removeCustomerCard('card_abc123');
  print('Card removed successfully');
} catch (error) {
  print('Error removing card: $error');
}

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