Hi guys, today we will learn about how to implement Paypal Payment Gateway for an iOS application in Swift.

Let us know first what is the Payment gateway.

A payment gateway bridges the gap between customers, banks and online business. It safely and securely passes all the sensitive information such as customer’s credit card numbers and so on, from one end to the other. It is used for online transactions with the customer. It is a merchant service provided by an e-commerce application service provider that authorizes credit card or direct payments processing for e-businesses, online retailers, bricks and clicks, or traditional brick and mortar.

Now we can start the steps to integrate the payment gateway.

Step To Integrate Paypal Payment Gateway

Step 1 => Add ‘PayPal-iOS-SDK’ In The Project

To integrate PayPal into your Xcode project using CocoaPods, specify it in your Podfile:

pod 'PayPal-iOS-SDK'

1	pod 'PayPal-iOS-SDK'

and then run this command in the terminal

pod install

1	pod install

Step 2 => Setup of Paypal Environment

For testing purposes, you have to add these lines in your code it does not submit transactions to PayPal. It generates fakes successful responses that are useful for unit tests.

 var environment:String = PayPalEnvironmentNoNetwork {
        willSet(newEnvironment) {
            if (newEnvironment != environment) {
                PayPalMobile.preconnect(withEnvironment: newEnvironment)
            }
        }
    }

var environment:String = PayPalEnvironmentNoNetwork {

willSet(newEnvironment) {

if (newEnvironment != environment) {

PayPalMobile.preconnect(withEnvironment: newEnvironment)

}

Step 3 => Implementation of Paypal Delegates

Then the third step is to implement the Paypal delegates. These delegates will call when payment is completed and when it is canceled.

    //It specify that, the user canceled without making a payment.
    func payPalPaymentDidCancel(_ paymentViewController: PayPalPaymentViewController) {
        paymentViewController.dismiss(animated: true, completion: { () -> Void in
            self.dismiss(animated: true, completion: nil)
        })
       
    }
    
    //when payment is completed then it is called
    func payPalPaymentViewController(_ paymentViewController: PayPalPaymentViewController, didComplete completedPayment: PayPalPayment) {
        print("PayPal Payment Success !")
        paymentViewController.dismiss(animated: true, completion: { () -> Void in
            // send completed confirmaion to your server
            print("Here is your proof of payment:\n\n\(completedPayment.confirmation)\n\nSend this to your server for confirmation and fulfillment.")
            let dict = ["order_id": self.orderId, "paypal_payment_response": ["response": completedPayment.confirmation["response"] ?? ""]] as [String : Any]
            let paymentDict = ["response": completedPayment.confirmation["response"] ?? ""] as [String : Any]
            print(dict)
           
        })
    }

//It specify that, the user canceled without making a payment.

func payPalPaymentDidCancel(_ paymentViewController: PayPalPaymentViewController) {

paymentViewController.dismiss(animated: true, completion: { () -> Void in

self.dismiss(animated: true, completion: nil)

})

}

//when payment is completed then it is called

func payPalPaymentViewController(_ paymentViewController: PayPalPaymentViewController, didComplete completedPayment: PayPalPayment) {

print("PayPal Payment Success !")

paymentViewController.dismiss(animated: true, completion: { () -> Void in

// send completed confirmaion to your server

print("Here is your proof of payment:\n\n\(completedPayment.confirmation)\n\nSend this to your server for confirmation and fulfillment.")

let dict = ["order_id": self.orderId, "paypal_payment_response": ["response": completedPayment.confirmation["response"] ?? ""]] as [String : Any]

let paymentDict = ["response": completedPayment.confirmation["response"] ?? ""] as [String : Any]

print(dict)

})

}

Step 4 => Setup of Paypal

You have to set Paypal then you can initiate the payment. Add this code in your view controller and call this method for the setup of Paypal.

func setupPaypal(orderId: String, clientId: String, secretKey: String,totalAmount: Float, paymentMode: PaymentMode, account: String, currencyCode: String, discount: Float, shipping: Float, tax: Float) {
    var payPalConfig = PayPalConfiguration()
    //Initializaing the paypal environment with the client id.
     PayPalMobile.initializeWithClientIds(forEnvironments: [PayPalEnvironmentProduction: clientId, PayPalEnvironmentSandbox: clientId])
     payPalConfig.acceptCreditCards = true
      //Client details
     payPalConfig.merchantName = account
     payPalConfig.merchantPrivacyPolicyURL = URL(string: "https://www.paypal.com/webapps/mpp/ua/privacy-full")
     payPalConfig.merchantUserAgreementURL = URL(string: "https://www.paypal.com/webapps/mpp/ua/useragreement-full")
     payPalConfig.languageOrLocale = Defaults.language ?? "en"//UserDefaults.fetch(key: UserDefaults.Keys.AppLanguageKey) ?? "en"
     payPalConfig.payPalShippingAddressOption = .payPal;
     var items = [Any]()
     let item = PayPalItem.init(name: productName, withQuantity: 1, withPrice: NSDecimalNumber(string: String(format:"%.2f", totalAmount)), withCurrency: currencyCode, withSku: productName)
        
     items.append(item)
     print(items)
        
     let subtotal = PayPalItem.totalPrice(forItems: items)
     let shipping = NSDecimalNumber(string: String(format:"%.2f", shipping))
     let tax = NSDecimalNumber(string: String(format:"%.2f", tax))
     let paymentDetails = PayPalPaymentDetails(subtotal: subtotal, withShipping: shipping, withTax: tax)
     //let total = subtotal.adding(shipping).adding(tax)
     print("totallll: \(totalAmount)")
     let payment = PayPalPayment(amount: NSDecimalNumber(string: String(format:"%.2f", totalAmount)), currencyCode: currencyCode, shortDescription: orderId, intent: .sale)
     payment.items = items
      payment.paymentDetails = paymentDetails
      if (payment.processable) {
         let paymentViewController = PayPalPaymentViewController(payment: payment, configuration: payPalConfig, delegate: self)
         present(paymentViewController!, animated: true, completion: nil)
      } else {
          print("Payment not processalbe: \(payment)")
     }
}

func setupPaypal(orderId: String, clientId: String, secretKey: String,totalAmount: Float, paymentMode: PaymentMode, account: String, currencyCode: String, discount: Float, shipping: Float, tax: Float) {

var payPalConfig = PayPalConfiguration()

//Initializaing the paypal environment with the client id.

PayPalMobile.initializeWithClientIds(forEnvironments: [PayPalEnvironmentProduction: clientId, PayPalEnvironmentSandbox: clientId])

payPalConfig.acceptCreditCards = true

//Client details

payPalConfig.merchantName = account

payPalConfig.merchantPrivacyPolicyURL = URL(string: "https://www.paypal.com/webapps/mpp/ua/privacy-full")

payPalConfig.merchantUserAgreementURL = URL(string: "https://www.paypal.com/webapps/mpp/ua/useragreement-full")

payPalConfig.languageOrLocale = Defaults.language ?? "en"//UserDefaults.fetch(key: UserDefaults.Keys.AppLanguageKey) ?? "en"

payPalConfig.payPalShippingAddressOption = .payPal;

var items = [Any]()

let item = PayPalItem.init(name: productName, withQuantity: 1, withPrice: NSDecimalNumber(string: String(format:"%.2f", totalAmount)), withCurrency: currencyCode, withSku: productName)

items.append(item)

print(items)

let subtotal = PayPalItem.totalPrice(forItems: items)

let shipping = NSDecimalNumber(string: String(format:"%.2f", shipping))

let tax = NSDecimalNumber(string: String(format:"%.2f", tax))

let paymentDetails = PayPalPaymentDetails(subtotal: subtotal, withShipping: shipping, withTax: tax)

//let total = subtotal.adding(shipping).adding(tax)

print("totallll: \(totalAmount)")

let payment = PayPalPayment(amount: NSDecimalNumber(string: String(format:"%.2f", totalAmount)), currencyCode: currencyCode, shortDescription: orderId, intent: .sale)

payment.items = items

payment.paymentDetails = paymentDetails

if (payment.processable) {

let paymentViewController = PayPalPaymentViewController(payment: payment, configuration: payPalConfig, delegate: self)

present(paymentViewController!, animated: true, completion: nil)

} else {

print("Payment not processalbe: \(payment)")

}

You can call this method by adding the following code.

self.setupPaypal(orderId: "Place Order", clientId: data["paypalData"]["clientId"].stringValue, secretKey: data["paypalData"]["secretKey"].stringValue, totalAmount: data["paypalData"]["amount"].floatValue,paymentMode: test, account: data["paypalData"]["merchantName"].stringValue, currencyCode: data["paypalData"]["currencyCode"].stringValue, discount: data["paypalData"]["discount"].floatValue, shipping: data["paypalData"]["shipping"].floatValue, tax: data["paypalData"]["tax"].floatValue)

self.setupPaypal(orderId: "Place Order", clientId: data["paypalData"]["clientId"].stringValue, secretKey: data["paypalData"]["secretKey"].stringValue, totalAmount: data["paypalData"]["amount"].floatValue,paymentMode: test, account: data["paypalData"]["merchantName"].stringValue, currencyCode: data["paypalData"]["currencyCode"].stringValue, discount: data["paypalData"]["discount"].floatValue, shipping: data["paypalData"]["shipping"].floatValue, tax: data["paypalData"]["tax"].floatValue)

Conclusion

So please follow the above step to integrate the Paypal payment gateway and if you have any issue or suggestion you can leave your query/suggestion in the comment section.

Vicky Kumar 27 February 2020

. . .

16 comments

Juan Jan 29, 2021 at 6:37 am

PayPal-iOS-SDK is deprecated ?

Vicky Kumar (Moderator) Jan 31, 2021 at 8:50 pm
Yes, it is now deprecated.

Reply
- saif Feb 3, 2021 at 12:18 pm
  hi i want to integrate for UAE in IOS but could not create production account as sdk is depericated
  
  Reply
  - Vicky Kumar Oct 11, 2021 at 9:44 am
    Please use Braintree as the PayPal SDK is now deprecated https://developer.paypal.com/braintree/docs/start/hello-client/ios/v5
    
    Reply
- Shivaganeshgupta Feb 9, 2021 at 1:49 pm
  Hi Vicky Kumar,
  Shall we use PayPal SDK for iOS
  
  Reply
  - Vicky Kumar Oct 11, 2021 at 9:45 am
    Please use Braintree as the PayPal SDK is now deprecated https://developer.paypal.com/braintree/docs/start/hello-client/ios/v5
    
    Reply
- Rakesh Mandloi Mar 2, 2021 at 3:17 pm
  so how we can integrate PayPal now? is there any alternative.
  
  Reply
  - Vicky Kumar Oct 11, 2021 at 9:43 am
    Please use Braintree as the PayPal SDK is now deprecated https://developer.paypal.com/braintree/docs/start/hello-client/ios/v5
    
    Reply
Niraj Ajudiya May 27, 2021 at 11:54 am
How to integrate paypal now? Any ideas can you suggest

Reply
- Vicky Kumar (Moderator) May 27, 2021 at 12:02 pm
  You can use Braintree for PayPal payment gateway integration.
  
  Reply
  - Aravindh Jun 8, 2021 at 10:23 am
    is there any option to integrate Paypal without Braintree?
    
    Reply
    - Vicky Kumar Oct 11, 2021 at 9:40 am
      The PayPal SDK is now deprecated, and if you wish to integrate it using SDK then you have to use Braintree https://developer.paypal.com/braintree/docs/start/hello-client/ios/v5
      
      Reply
  - brajpal Jun 21, 2021 at 10:50 pm
    Cannot find type ‘PaymentMode’ in scope
    
    Reply
    - Vicky Kumar Oct 11, 2021 at 9:42 am
      Please use Braintree as the PayPal SDK is now deprecated https://developer.paypal.com/braintree/docs/start/hello-client/ios/v5
      
      Reply

Aravindh Jahan Jun 7, 2021 at 9:35 pm

can you please help to integrate paypal payment gateway without Braintree

Vicky Kumar (Moderator) Sep 27, 2021 at 10:28 am
The PayPal SDK is now deprecated, and if you wish to integrate it using SDK then you have to use Braintree https://developer.paypal.com/braintree/docs/start/hello-client/ios/v5

Reply

Paypal Payment Gateway Integration In Swift With SDK

Step To Integrate Paypal Payment Gateway

Step 1 => Add ‘PayPal-iOS-SDK’ In The Project

Step 2 => Setup of Paypal Environment

Step 3 => Implementation of Paypal Delegates

Step 4 => Setup of Paypal

Conclusion

Leave a Comment Cancel Reply

16 comments

Paypal Payment Gateway Integration In Swift With SDK

Step To Integrate Paypal Payment Gateway

Step 1 => Add ‘PayPal-iOS-SDK’ In The Project

Step 2 => Setup of Paypal Environment

Step 3 => Implementation of Paypal Delegates

Step 4 => Setup of Paypal

Conclusion

Leave a Comment Cancel Reply

16 comments

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