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Here I have explained the steps to integrate the Checkout.com Payment Gateway through SDK.
Run a pod in your code :
pod ‘CheckoutKit’, ‘~>3.0.6’
The below code is how you take the inputs from customer to make payment.
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import UIKit import CheckoutKit import QuartzCore protocol CheckoutTokenRequest { func getCheckoutToken(card_token: String, saveCard: Bool) } class StoredCardViewController: UIViewController { var pickerContent: [[String]] = [] let months = [1,2,3,4,5,6,7,8,9,10,11,12] let years = [2015,2016,2017,2018,2019,2020,2021,2022,2023,2024,2025] var month = "1" var year = "2015" let errorColor = UIColor(red: 204.0/255.0, green: 112.0/255.0, blue: 115.0/255.0, alpha: 0.3) var checkoutPublicKey = "" var delegate: CheckoutTokenRequest? var isSaveCard = false @IBOutlet weak var nameField: UITextField! @IBOutlet weak var numberField: UITextField! @IBOutlet weak var cvvField: UITextField! @IBOutlet weak var dateField: UITextField! @IBOutlet weak var nameTitle: UILabel! @IBOutlet weak var numberTitle: UILabel! @IBOutlet weak var cvvTitle: UILabel! @IBOutlet weak var dateTitle: UILabel! @IBOutlet weak var cardTokenButton: UIButton! @IBOutlet weak var checkBtn: UIButton! @IBOutlet weak var saveThisCardForLaterUse: UILabel! override func viewDidLoad() { super.viewDidLoad() dateField.delegate = self pickerContent.append([]) for m in 0 ..< months.count { pickerContent[0].append(months[m].description) } pickerContent.append([]) for y in 0 ..< years.count { pickerContent[1].append(years[y].description) } cardTokenButton.isHidden = false nameTitle.text = "Name" numberTitle.text = "Credit card number" cvvTitle.text = "CVV" dateTitle.text = "Expiry Date" saveThisCardForLaterUse.text = Save this card for later use cardTokenButton.setTitle("Pay", for: .normal) cardTokenButton.backgroundColor = UIColor().HexToColor(hexString: BUTTON_COLOR, alpha: 1.0) checkBtn.layer.borderWidth = 1.0 checkBtn.layer.borderColor = UIColor.black.cgColor checkBtn.layer.cornerRadius = 4.0 let tapGesture = UITapGestureRecognizer(target: self, action:#selector(contentClicked)) saveThisCardForLaterUse.addGestureRecognizer(tapGesture) } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() // Dispose of any resources that can be recreated. } override func viewDidAppear(_ animated: Bool) { super.viewDidAppear(animated) } fileprivate func updateDate() { dateField.text = "\(month) / \(year)" } func textFieldShouldBeginEditing( _ textField: UITextField) -> Bool { self.view.endEditing(true) if textField == dateField { let pickerView = UIPickerView() pickerView.tag = 101 pickerView.delegate = self dateField.inputView = pickerView } return true } // override func canPerformAction(_ action: Selector, withSender sender: AnyObject?) -> Bool { // // Disable copy, select all, paste // if action == #selector(copy(_:)) || action == #selector(selectAll(_:)) || action == #selector(paste(_:)) { // return false // } // // Default // return super.canPerformAction(action, withSender: sender) // } @objc func contentClicked() { isSaveCard = !isSaveCard if isSaveCard { checkBtn.setImage(UIImage(named: "ic_tick_comment"), for: .normal) } else { checkBtn.setImage(nil, for: .normal) } } fileprivate func validateCardInfo(_ number: String, expYear: String, expMonth: String, cvv: String) -> Bool { var err: Bool = false resetFieldsColor() if (!CardValidator.validateCardNumber(number)) { err = true numberField.backgroundColor = errorColor } if (!CardValidator.validateExpiryDate(month, year: year)) { err = true dateField.backgroundColor = errorColor } if (cvv == "") { err = true cvvField.backgroundColor = errorColor } return !err } fileprivate func resetFieldsColor() { numberField.backgroundColor = UIColor.white dateField.backgroundColor = UIColor.white cvvField.backgroundColor = UIColor.white } @IBAction func checkBtnClicked(_ sender: UIButton) { isSaveCard = !isSaveCard if isSaveCard { checkBtn.setImage(UIImage(named: "ic_tick_comment"), for: .normal) } else { checkBtn.setImage(nil, for: .normal) } } @IBAction func getCardToken(_ sender: AnyObject) { var ck: CheckoutKit? = nil do { try ck = CheckoutKit.getInstance(checkoutPublicKey) } catch _ as NSError { GlobalData.sharedInstance.showErrorSnackBar(msg: "Please check the details") } if ck != nil { if (validateCardInfo(numberField.text!, expYear: year, expMonth: month, cvv: cvvField.text!)) { resetFieldsColor() var card: Card? = nil do { try card = Card(name: nameField.text!, number: numberField.text!, expYear: year, expMonth: month, cvv: cvvField.text!, billingDetails: nil) } catch let err as CardError { switch(err) { case CardError.invalidCVV: cvvField.backgroundColor = errorColor case CardError.invalidExpiryDate: dateField.backgroundColor = errorColor case CardError.invalidNumber: numberField.backgroundColor = errorColor } } catch _ as NSError { } if card != nil { ck!.createCardToken(card!, completion:{ (resp: Response<CardTokenResponse>) -> Void in if (resp.hasError) { print(resp) GlobalData.sharedInstance.showErrorSnackBar(msg: "Please check the details") } else { print(resp) if let card_token = resp.model?.cardToken as? String { self.delegate?.getCheckoutToken(card_token: card_token, saveCard: self.isSaveCard) self.navigationController?.popViewController(animated: true) } } }) } } } } } // MARK: - UIPickerView extension StoredCardViewController: UIPickerViewDelegate, UIPickerViewDataSource, UITextFieldDelegate { func numberOfComponents(in pickerView: UIPickerView) -> Int { return pickerContent.count } // returns the # of rows in each component.. func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int { return pickerContent[component].count } func pickerView(_ bigPicker: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? { return pickerContent[component][row] } func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) { if component == 0 { month = pickerContent[0][row] } else { year = pickerContent[1][row] } updateDate() } } |
The UITableViewCell code is as given below :
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protocol RefreshView { func refresh(section: Int) } import UIKit class StoredCardOptionsTableViewCell: UITableViewCell { @IBOutlet weak var cardSuperView: UIView! @IBOutlet weak var checkBtn: UIButton! @IBOutlet weak var cardNoTitle: UILabel! @IBOutlet weak var cardNoVal: UILabel! @IBOutlet weak var cardExpiryTitle: UILabel! @IBOutlet weak var cardExpiryVal: UILabel! @IBOutlet weak var cardImgTitle: UILabel! @IBOutlet weak var cardImgView: UIImageView! var paymentData: PaymentData? var delegate: RefreshView? static var identifier: String { return String(describing: self) } static var nib: UINib { return UINib(nibName: identifier, bundle: nil) } var data: SavedCards? { didSet { cardNoVal.text = (data?.maskedCC)! + "**** **** ****" cardExpiryVal.text = data?.expirationDate GlobalData.sharedInstance.getImageFromUrl(imageUrl: (data?.iconUrl)!, imageView: cardImgView) if (data?.isSelected)! { checkBtn.backgroundColor = UIColor.black }else{ checkBtn.backgroundColor = UIColor.white } } } override func awakeFromNib() { super.awakeFromNib() // Initialization code checkBtn.layer.cornerRadius = checkBtn.frame.width/2 checkBtn.layer.masksToBounds = true checkBtn.layer.borderColor = UIColor().HexToColor(hexString: LINK_COLOR).cgColor checkBtn.layer.borderWidth = 2.0 cardSuperView.layer.borderColor = UIColor.groupTableViewBackground.cgColor cardSuperView.layer.borderWidth = 1.0 cardNoTitle.text = "Card no" cardExpiryTitle.text = "Expiration Date" cardImgTitle.text = "Type" } override func setSelected(_ selected: Bool, animated: Bool) { super.setSelected(selected, animated: animated) // Configure the view for the selected state } @IBAction func checkBtnClicked(_ sender: UIButton) { paymentData?.getSavedCardOptionSelected(row: sender.tag) delegate?.refresh(section: checkBtn.superview!.tag) } } |
The view will appear like :
After filling the data, Click on PAY button, you will get a cardToken. Ex:
“cardToken”: “card_tok_4A45B00E-91A6-46AD-9F18-25D77E9792CB”
Save this card for later use option used for Saving the card. Save the card token on your server and while making a payment for the next time, you can select the card directly and go for the payment.
Hope it will help you in integrating the Checkout.com Payment Gateway in your app.
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