ViewController.swift

ViewController.swift

//
//  ViewController.swift
//  testingstripe
//
//  Created by Charles Francis on 5/22/15.
//  Copyright (c) 2015 Charles Francis. All rights reserved.

import UIKit

class ViewController: UIViewController, PKPaymentAuthorizationViewControllerDelegate  {

    override func viewDidLoad() {
        super.viewDidLoad()
    }
    
    @IBOutlet var inputField: UITextField?
    @IBOutlet weak var textOutput: UITextField!
    
    func consoleOut(text: String) {
        textOutput.text = text
    }
    
    @IBAction func beginPayment(sender: UIButton) {
        let request = Stripe.paymentRequestWithMerchantIdentifier(<MERCHANT ID>)
        let label = "A very nice product."
        let amount: NSDecimalNumber = NSDecimalNumber(integer: Int(inputField!.text!)!)
        request!.paymentSummaryItems = [PKPaymentSummaryItem(label: label, amount: amount)]
        request!.requiredShippingAddressFields = PKAddressField.All
        
        if (Stripe.canSubmitPaymentRequest(request)) {
            let paymentController = STPTestPaymentAuthorizationViewController(paymentRequest: request)
            paymentController.delegate = self
            presentViewController(paymentController, animated: true, completion: nil)
        }
    }
    
    func handlePaymentAuthorizationWithPayment(payment: PKPayment, completion: ((PKPaymentAuthorizationStatus) -> Void)!) {
        STPAPIClient.sharedClient().createTokenWithPayment(
            payment,
            completion: { (token: STPToken?, error: NSError?) in
                if ((error) != nil) {
                    completion(PKPaymentAuthorizationStatus.Failure)
                }
                self.createBackendChargeWithToken(token!, completion: completion)
            })
    }
    
    func createBackendChargeWithToken(token: STPToken, completion: ((PKPaymentAuthorizationStatus) -> Void)!) {
        let url = NSURL(string: "http://localhost:9000/makeCharge") 
        let request = NSMutableURLRequest(URL: url!)
        request.HTTPMethod = "POST"
        let body = String(format: "stripeToken=%@&amount=", token.tokenId)
        request.HTTPBody = body.dataUsingEncoding(NSUTF8StringEncoding)
        NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue(), completionHandler: {
            (response: NSURLResponse?, data: NSData?, error: NSError?) in
            if (error != nil) {
                completion(PKPaymentAuthorizationStatus.Failure)
            } else {
                self.consoleOut(String(format: "Payment success with: %@", response!.hashValue))
                completion(PKPaymentAuthorizationStatus.Success)
            }
        })
    }
    
    func paymentAuthorizationViewController(
        controller: PKPaymentAuthorizationViewController,
        didAuthorizePayment payment: PKPayment,
        completion: ((PKPaymentAuthorizationStatus) -> Void)) {

        self.handlePaymentAuthorizationWithPayment(payment, completion:completion);
    }
    
    func paymentAuthorizationViewControllerDidFinish(controller: PKPaymentAuthorizationViewController) {
        self.dismissViewControllerAnimated(true, completion: nil)
    }
    
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

}