PayUMoney Integration in Swift 5

Step 1: Add Podfile in your project and inside Podfile,

pod 'PayUmoney_PnP'

Step 2: Import Framework in your View Controller where you want to use.

import PlugNPlay

import CommonCrypto

Step 3: Call below function inside View Controller.

    func continueWithCardPayment() {

        

        let paymentParam = PUMTxnParam()

        paymentParam.key = "asdas" // change here for merchant key

        paymentParam.merchantid = "123324" // Change merchant id

        paymentParam.txnID = "12"

        paymentParam.phone = "" // add mobile number here

        paymentParam.amount = "20" // change amount here

        paymentParam.productInfo = ""

        paymentParam.surl = "https://www.payumoney.com/mobileapp/payumoney/success.php"

        paymentParam.furl = "https://www.payumoney.com/mobileapp/payumoney/failure.php"

        paymentParam.firstname = "Dilip"

        paymentParam.email = "" // add here email id

        paymentParam.environment = PUMEnvironment.production // Change here for test

        paymentParam.udf1 = "udf1"

        paymentParam.udf2 = "udf2"

        paymentParam.udf3 = "udf3"

        paymentParam.udf4 = "udf4"

        paymentParam.udf5 = "udf5"

        paymentParam.udf6 = ""

        paymentParam.udf7 = ""

        paymentParam.udf8 = ""

        paymentParam.udf9 = ""

        paymentParam.udf10 = ""

        paymentParam.hashValue = self.getHashForPaymentParams(paymentParam)

        // paymentParam.offerKey = ""

        // paymentParam.userCredentials = ""

        

        

        PlugNPlay.presentPaymentViewController(withTxnParams: paymentParam, on: self) { (dict, error, value) in

            print(dict as Any, error as Any, value as Any)

            

            print("Error : \(error as Any)")

            print(error?.localizedDescription ?? "")

   

            if error == nil {

                print("error is nil")

                self.paymentStatusFailed(orderID: orderId, paymentStatus: "0")

            }else if error != nil {

                print("error is nil")

                

            }

        }

    }

    than add this two function of generating hash & SHA512

    func sha512(_ str: String) -> String {

        

        let data = str.data(using:.utf8)!

        var digest = [UInt8](repeating: 0, count: Int(CC_SHA512_DIGEST_LENGTH))

        data.withUnsafeBytes({

            _ = CC_SHA512($0, CC_LONG(data.count), &digest)

        })

        return digest.map({ String(format: "%02hhx", $0) }).joined(separator: "")

    }

    

    func getHashForPaymentParams(_ txnParam: PUMTxnParam?) -> String? {

        let salt = "40OLIKYEb7"

        var hashSequence: String? = nil

        if let key = txnParam?.key, let txnID = txnParam?.txnID, let amount = txnParam?.amount, let productInfo = txnParam?.productInfo, let firstname = txnParam?.firstname, let email = txnParam?.email, let udf1 = txnParam?.udf1, let udf2 = txnParam?.udf2, let udf3 = txnParam?.udf3, let udf4 = txnParam?.udf4, let udf5 = txnParam?.udf5, let udf6 = txnParam?.udf6, let udf7 = txnParam?.udf7, let udf8 = txnParam?.udf8, let udf9 = txnParam?.udf9, let udf10 = txnParam?.udf10 {

            hashSequence = "\(key)|\(txnID)|\(amount)|\(productInfo)|\(firstname)|\(email)|\(udf1)|\(udf2)|\(udf3)|\(udf4)|\(udf5)|\(udf6)|\(udf7)|\(udf8)|\(udf9)|\(udf10)|\(salt)"

        }

        

        let hash = self.sha512(hashSequence!).description.replacingOccurrences(of: "<", with: "").replacingOccurrences(of: ">", with: "").replacingOccurrences(of: " ", with: "")

        

        return hash

    }