Sale Request PreAuthorization Supplement

WDePOS-SaleRequest-PreAuthorize-Supplement.swift

let sdk:WDePOS = WDePOS.sharedInstance()

// Create the instance of the Sale Request
// Here the minimum data is depicted
let saleRequest:WDSaleRequest! = WDSaleRequest.init(uniqueId: "yourSaleUniqueID", // provide your unique ID to identify the Sale
    location: nil, // provide the GPS location for this payment e.g. the mobile device location
    inclusiveTaxes: true, // Tax inclusive/exclusive flag
    currency: "EUR", // Currency to use for this Sale
    note: "Test Sale", // Top level note for this sale
    gratuityTaxRate: nil // Gratuity tax rate - nil if no gratuity to be set later in the payment flow
    )!

// Create one item named "Item 1" costing 10.00 EUR at 20% Tax
saleRequest.addSaleItem(NSDecimalNumber.init(value: 10), // Item Unit price
    quantity: NSDecimalNumber.init(value: 1), // Item Quantity
    taxRate: NSDecimalNumber.init(value: 20), // Item Tax rate
    itemDescription: "Item 1", // Item description
    productId: nil,
    externalProductId:nil
)

// Discover active terminals and use it - in this case we use the first one
// Alternatively use the one discovered previously and stored in an instance variable (or user preferences)
sdk.terminalManager.discoverDevices(WDExtensionTypeUUID.WDPosMateExtensionUUID) { (terminals:[WDTerminal]?, error:Error?) in
    if let terminalsArr = terminals{
        //Here we assume that at least one terminal is present
        let terminal:WDTerminal! = terminalsArr.first
        // Set this Sale in total amount 10 EUR and use Card PreAuthorization to process this Sale
        saleRequest.addCardPreAuthorization(NSDecimalNumber.init(value: 8), terminal: terminal!)
        
        // Create Payment Configuration to be used in the Pay API later
        // Set the Sale of this payment configuration to be your new Sale Request
        let paymentConfiguration:WDSaleRequestConfiguration! = WDSaleRequestConfiguration.init(saleRequest: saleRequest)
        //Perform the Sale
        sdk.saleManager.pay(paymentConfiguration, with: type(of:self).paymentHandler)
    }
    else{
        NSLog("No active terminal found")
    }
}

//************ SUPPLEMENT ************//
//Capture - can be done for previous successful PreAuthorization
let saleResponse = WDSaleResponse() //You could obtain the previously performed Sale with PreAuthorization
let referencedSale = saleResponse.referenceSaleRequest()//and use the helper to create the Referenced Sale Request
//as there was only one card authorization it is safe to refer to it as first object in the processedCardPayment array
let cardPreAuthorization = saleResponse.processedCardPayments().first

//Now add the Pre-auth supplement. Note that originalTransactionId and authorizationCode belong to a complete pre-authorize payment that already exist
referencedSale.addCardPreAuthorizationSupplement(NSDecimalNumber.init(integerLiteral: 1), originalTransactionId: cardPreAuthorization!.internalId, authorizationCode:cardPreAuthorization!.authorizationCode)

//Use the referencedSale request in the payment configuration
let paymentConfiguration:WDSaleRequestConfiguration! = WDSaleRequestConfiguration.init(saleRequest: referencedSale)
//Perform the Sale Request with Card Pre-Auth Supplement
sdk.saleManager.pay(paymentConfiguration, with: type(of:self).paymentHandler)