Orders

Show how you create your payment request.

And describe exactly what is the problem:

- getting the information ?

- sending them to the view controller ?

- Is the pay button on the same view than orders view controller ? : I understand not, so the solution is likely to use delegation.

The pay button is not on the same view as the orders. Here is the code for my price view:

import UIKit
import Stripe

class RidePriceView: UIViewController, PKPaymentAuthorizationViewControllerDelegate{
    var price : Float?
    var category : RideType?
    var length: rideLength?
    var dateOfRide: Date?
    
    
    
    @IBOutlet weak var ridePriceTotalConstraint: NSLayoutConstraint!
    @IBOutlet weak var rideTypePrice: UILabel!
    @IBOutlet weak var rideLengthPrice: UILabel!
    @IBOutlet weak var ridePriceTotal: UILabel!
    @IBOutlet weak var rideDate: UILabel!
    @IBOutlet weak var currentDateLabel: UILabel!
    

    override func viewDidLoad() {
        print("viewDidLoad starts")
        if price != nil { ridePriceTotal.text = String(format: "$" + "%.2f", price!) }
        print("price is", ridePriceTotal.text!, price!)
        if category != nil {rideTypePrice.text = category!.description() }
        print("category is", rideeTypePrice.text!, category!.description())
        if length != nil { rideLengthPrice.text = length!.description() }
        print("length is", rideLengthPrice.text!, length!.description())
        if dateOfride != nil {
            let formatter = DateFormatter()
            formatter.dateFormat = "MM/dd/yyyy hh:mm a"
            massageDate.text = formatter.string(from: dateOfMassage!)
        }
        currentDateLabel.text = DateFormatter.localizedString(from: Date(), dateStyle: .long, timeStyle: .none)
        addApplePayPaymentButtonToView()
    }
    
    private func addApplePayPaymentButtonToView() {
        let paymentButton = PKPaymentButton(paymentButtonType: .buy, paymentButtonStyle: .black)
        paymentButton.translatesAutoresizingMaskIntoConstraints = false
        paymentButton.addTarget(self, action: #selector(applePayButtonTapped(sender:)), for: .touchUpInside)
        view.addSubview(paymentButton)
        
        view.addConstraint(NSLayoutConstraint(item: paymentButton, attribute: .centerX, relatedBy: .equal, toItem: view, attribute: .centerX, multiplier: 1, constant: 0))
        view.addConstraint(NSLayoutConstraint(item: paymentButton, attribute: .bottom, relatedBy: .equal, toItem: view, attribute: .bottom, multiplier: 1, constant: -25))
    }
    
    @objc private func applePayButtonTapped(sender: UIButton) {
        let paymentNetworks:[PKPaymentNetwork] = [.amex, .masterCard, .visa, .discover]
        
        if PKPaymentAuthorizationViewController.canMakePayments(usingNetworks: paymentNetworks) {
            let request = PKPaymentRequest()
            
            request.merchantIdentifier = "merchant.com.shiningdevelopers"
            request.countryCode = "CA"
            request.currencyCode = "CAD"
            request.supportedNetworks = paymentNetworks
            request.requiredShippingContactFields = [.name, .postalAddress]
            // This is based on using Stripe
            request.merchantCapabilities = .capability3DS
            
            let tshirt = PKPaymentSummaryItem(label: "T-shirt", amount: NSDecimalNumber(decimal:1.00), type: .final)
            let shipping = PKPaymentSummaryItem(label: "Shipping", amount: NSDecimalNumber(decimal:1.00), type: .final)
            let tax = PKPaymentSummaryItem(label: "Tax", amount: NSDecimalNumber(decimal:1.00), type: .final)
            let total = PKPaymentSummaryItem(label: "Total", amount: NSDecimalNumber(decimal:3.00), type: .final)
            request.paymentSummaryItems = [tshirt, shipping, tax, total]
            
            let authorizationViewController = PKPaymentAuthorizationViewController(paymentRequest: request)
            
            if let viewController = authorizationViewController {
                viewController.delegate = self
                
                present(viewController, animated: true, completion: nil)
            }
        }
    }
    
    func paymentAuthorizationViewController(_ controller: PKPaymentAuthorizationViewController, didAuthorizePayment payment: PKPayment, handler completion: @escaping (PKPaymentAuthorizationResult) -> Void) {
        // Let the Operating System know that the payment was accepted successfully
        completion(PKPaymentAuthorizationResult(status: .success, errors: nil))
    }
    
    func paymentAuthorizationViewControllerDidFinish(_ controller: PKPaymentAuthorizationViewController) {
        // Dismiss the Apple Pay UI
        dismiss(animated: true, completion: nil)
    }
}

Is this the code you are looking for?

Yes, partly.

But,

what is the problem exactly:

- getting the information ?

- sending the information to the orders view controller ?

What information do you need to send ?

request.merchantIdentifier = "merchant.com.shiningdevelopers"

request.countryCode = "CA"

request.currencyCode = "CAD"

request.supportedNetworks = paymentNetworks

request.requiredShippingContactFields = [.name, .postalAddress]

request.paymentSummaryItems = [tshirt, shipping, tax, total]

I want to send the price and the items they ordered to my orders view controller. I already have the information in the price view controller.

So, you can use a delegate.

Define a protocol:

- in Orders, before class declaration

protocol PayRequestDelegate {

    func sendRequest(items: [PKPaymentSummaryItem])
}

- in Orders, declare that the class conforms to protocol

class Orders: UIViewController, PayRequestDelegate  {
}

- in Orders, in the class, implement the protocol

    func sendRequest(items: [PKPaymentSummaryItem]) {
     
        // Display the elements you get in the appropriate labels or var
    }

- in Orders, in the prepare to go to priceView, set the delegate that you will declare in PriceView

    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        if let destination = segue.destination as? PriceView {
            destination.delegate = self
        }
    }

- in PriceView, declare a delegate

var delegate : PayRequestDelegate?

- in PriceView, when request is completed, use the delegate to send to Orders

            let tshirt = PKPaymentSummaryItem(label: "T-shirt", amount: NSDecimalNumber(decimal:1.00), type: .final)
            let shipping = PKPaymentSummaryItem(label: "Shipping", amount: NSDecimalNumber(decimal:1.00), type: .final)
            let tax = PKPaymentSummaryItem(label: "Tax", amount: NSDecimalNumber(decimal:1.00), type: .final)
            let total = PKPaymentSummaryItem(label: "Total", amount: NSDecimalNumber(decimal:3.00), type: .final)
            request.paymentSummaryItems = [tshirt, shipping, tax, total]
  
            delegate?.sendRequest(items: request.paymentSummaryItems])

I am getting this message Use of undeclared type 'PKPaymentSummaryItem' when I define the protocol.

Did you import PassKit in the Orders file ?

Note: May be you need to import Stripe in Oders file, if that is the package you use.