This is just a random test don't mind me.

StripeIntegration

Integrating Stripe in an iOS app using Heroku and Swift

Downloads Necessary

Download Composer:
Download Git: https://git-scm.com/downloads
Download PHP: http://php-osx.liip.ch/
Download Heroku Toolbelt (you will need homebrew installed to download this):
in terminal run:

brew install heroku

Also need Cocoapods and Xcode

Setting Up The Server

open terminal
run:

cd
mkdir stripe-integration

open Xcode
-> create a single view application
-> name it "stripe-test" or replace any sections of the following code where stripe-test is used with your project name
-> save it to the stripe-integration directory
back to terminal:

cd
cd stripe-integration
mkdir stripe-server
cd
clear
cd
cd stripe-integration
cd stripe-server
git init
php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
php -r "if (hash_file('SHA384', 'composer-setup.php') === '669656bab3166a7aff8a7506b8cb2d1c292f042046c5a994c43155c0be6190fa0355160742ab2e1c88d40d5be660b410') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"
php composer-setup.php
php -r "unlink('composer-setup.php');"
php composer.phar require stripe/stripe-php
touch Procfile
touch index.php
touch charge.php
open Procfile
open index.php
open charge.php
cd
clear

copying that code into terminal should open the Procfile, index.php, charge.php.
in the Procfile paste:

web: vendor/bin/heroku-php-apache2

in index.php paste (this code is not necessary but is a good check of whether or not the server is working). (Seems to work better if quotes are vertical not curled).

<html>
<body>
<?php echo "<p>Hello World</p>"; ?> 
</body>
</html>

in the charge.php file paste: (Again, seems to work better with vertical quotes rather than curled. In other words, make sure strings are recognized as strings.)

<?php
require_once('vendor/autoload.php');

below, where it says "stripe test key" input your stripe test PRIVATE key that you can get
by going to your stripe dashboard and clicking on API on the left side.

  \Stripe\Stripe::setApiKey("sk_test_yourprivatetestkey");
  $token = $_POST['stripeToken'];
  $amount = $_POST['amount'];
  $currency = $_POST['currency'];
  $description = $_POST['description'];
  try {
   $charge = \Stripe\Charge::create(array(
   "amount" => $amount*100, // Convert amount in cents to dollar
   "currency" => $currency,
   "source" => $token,
   "description" => $description)
   );
  // Check that it was paid:
   if ($charge->paid == true) {
   $response = array("status"=>"Success","message"=>"Payment has been charged!!");
   } else { // Charge was not paid!
   $response = array( 'status'=> 'Failure', 'message'=>'Your_payment_could NOT be processed because the payment system rejected the transaction. You can try again or use another card.' );
   }
   header('Content-Type: application/json');
   echo json_encode($response);
  } catch(\Stripe\Error\Card $e) {
   // The card has been declined
  header('Content-Type: application/json');
   echo json_encode($response);
  }
?>

Save all of the files and close them.
back to terminal:

cd
cd stripe-integration
cd stripe-server
git add .
git commit -m "First Upload"
heroku create
heroku login
git push heroku master
heroku open
cd
clear
cd stripe-integration
cd stripe-test
pod init
open -a Xcode Podfile
cd

your app's podfile should now be opened.
under #pods for "project-name" paste:

pod 'Stripe'
pod 'Alamofire'

Also be sure to uncomment the line at the top specifying the iOS.

platform :ios, '9.0'

back to terminal:

cd stripe-integration
cd stripe-test
pod install
open stripe-test.xcworkspace

Above make sure you are working in the stripe-test.xcworkspace. There is an important difference between this and your previous but still available stripe-text.xcodeproj.

this will prep you for the next part

Integrating The Stripe SDK in Xcode

First we need a bridging header because stripe is written in Obj-C:
Click Main.storyboard (just to make sure we are in the correct folder)
File -> new -> File... -> Header File
name the file "bridging-header" and save it
navigate to Build Settings and search Bridging Header
in the text field for "Objective-C Bridging Header" type "bridging-header.h"
go to the bridging-header.h file
after #define and before #endif paste:

#import <Stripe/Stripe.h>

now go to appDelegate.swift and change the application didFinishLaunchingWithOptions function to include the following line:
(make sure you replace the test publishable key with your own)

Stripe.setDefaultPublishableKey("pk_test_publishableKey")

make sure to add at the top of your appDelegate.swift:

import Stripe

An error might continue to show up. Make sure you clean the product. The error will eventually disappear.

Adding UI Elements

go to Main.storyboard and add a button and change its label to "Pay".
open up a dual view with the storyboard on one side and ViewController.swift on the other side
connect the pay button to an outlet in ViewController.swift name the outlet payButtonOutlet
connect the pay button to an action in ViewController.swift name the action payButtonAction
change the class header to include STPPaymentCardTextFieldDelegate:
(this will cause an error temporarily)

class ViewController: UIViewController, STPPaymentCardTextFieldDelegate

create a constant at the top to hold the stripe payment textfield:

let paymentTextField = STPPaymentCardTextField()

add this code to the function viewDidLoad():

paymentTextField.frame = CGRect(x: 15 , y: 199, width: self.view.frame.width - 30 , height: 44)
paymentTextField.delegate = self
view.addSubview(paymentTextField)
self.payButtonOutlet.isHidden = true

Now add the function paymentCardTextFieldDidChange to conform to the STPPaymentCardTextFieldDelegate protocol:
(also add the if statement inside of it)

func paymentCardTextFieldDidChange(_ textField: STPPaymentCardTextField) { 
 if textField.valid {
     payButtonOutlet.isHidden = false;
  }
}

Now make a function to make the charge on our heroku server:
(below: change the request string to your charge.php link. Don't know how to get that? scroll to the bottom of the README.)

    func chargeUsingToken(token: STPToken){
       let requestString = " "
       let params = ["stripeToken": token.tokenId, "amount": "200", "currency": "usd", "description": "testRun"]
       
       Alamofire.request(requestString , method: .post , parameters: params).responseJSON { response in
                       print(response.request)
                       print(response.response)
                       print(response.data)
                       print(response.result)
           
                       if let JSON = response.result.value {
                           print("JSON: \(JSON)")
                       }
                   }

       
   }

Above you might get warnings in your print statements. This isn't a big deal, but you can go ahead and unwrap those by adding an ! at the end. (See Xcode suggestion)

Let's go back to the function payButtonAction, add the following code:

        let card = paymentTextField.cardParams
       STPAPIClient.shared().createToken(withCard: card, completion: {(token, error) -> Void in
           if let error = error {
               print(error)
           }
           else if let token = token {
               print(token)
               self.chargeUsingToken(token: token)
           }
       })

Now you should still see a bunch of errors and warnings here. It is because you have not imported Stripe and Alamofire yet. Be sure to do that at the top of your ViewController:

import Stripe
import Alamofire

Getting the charge.php link

go to terminal:

cd 
cd stripe-integration
cd stripe-server
heroku open

copy the link in the address bar
add to that link: /charge.php
it should look something like this: https://<...>.herokuapp.com/charge.php