Getting Hash Mismatch in pay u money Swift 3 - ios

Question

Im New to Swift and I'm Integrating PayUmoney IOS SDK in swift, Im getting trouble When I'm doing in live its showing hash mismatch (Hash mismatch1) If I'm doing in test its showing invalid merchant key (Invalid key) I struck here from 2 weeks Did so many things and didn't get any solution for this can any one help it would be awesome. Below is my code, Thank you in Advance.
var params : PUMRequestParams = PUMRequestParams.shared()
var utils : Utils = Utils()
params.environment = PUMEnvironment.test;
params.firstname = txtFldName.text;
params.key = "bZf4AOjj";
params.merchantid = "5745303";
params.logo_url = "";
params.productinfo = "Product Info";
params.email = txtFldEmail.text;
params.phone = "";
params.surl = "https://www.payumoney.com/mobileapp/payumoney/success.php";
params.furl = "https://www.payumoney.com/mobileapp/payumoney/failure.php";
if(params.environment == PUMEnvironment.test){
generateHashForProdAndNavigateToSDK()
}
else{
calculateHashFromServer()
}
// assign delegate for payment callback.
params.delegate = self;
}
func generateHashForProdAndNavigateToSDK() -> Void {
let txnid = params.txnid!
let hashSequence : NSString = "\(params.key)|\(txnid)|\(params.amount)|\(params.productinfo)|\(params.firstname)|\(params.email)|||||||||||2uIsGhXWVw" as NSString
let data :NSString = utils.createSHA512(hashSequence as String!) as NSString
params.hashValue = data as String!;
startPaymentFlow();
}
// MARK:HASH CALCULATION
func prepareHashBody()->NSString{
return "SHA-512key=\(params.key!)&amount=\(params.amount!)&txnid=\(params.txnid!)&productinfo=\(params.productinfo!)&email=\(params.email!)&firstname=\(params.firstname!)" as NSString;
}
func calculateHashFromServer(){
let config = URLSessionConfiguration.default // Session Configuration
let session = URLSession(configuration: config) // Load configuration into Session
let url = URL(string: "https://test.payumoney.com/payment/op/v1/calculateHashForTest")!
var request = URLRequest(url: url)
request.httpBody = prepareHashBody().data(using: String.Encoding.utf8.rawValue)
request.httpMethod = "POST"
let task = session.dataTask(with: request, completionHandler: {
(data, response, error) in
if error != nil {
print(error!.localizedDescription)
} else {
do {
if let json = try JSONSerialization.jsonObject(with: data!, options: []) as? [String: Any]{
print(json)
let status : NSNumber = json["status"] as! NSNumber
if(status.intValue == 0)
{
self.params.hashValue = json["result"] as! String!
OperationQueue.main.addOperation {
self.startPaymentFlow()
}
}
else{
OperationQueue.main.addOperation {
self.showAlertViewWithTitle(title: "Message", message: json["message"] as! String)
}
}
}
} catch {
print("error in JSONSerialization")
}
}
})
task.resume()
}

Answer 1

Hello Vinny do with webview its working for me. Before I also used this PayUmoney IOS SDK but faced so many problems so based on objective-c I did this so I think its useful to you. create a weak var webview and create class UIwebviewdelegate
class PayumoneyViewController: UIViewController, UIWebViewDelegate, UIAlertViewDelegate {
#IBOutlet weak var Webview: UIWebView!
and for test use below credentials
//test
var merchantKey = "40747T"
var salt = "ur salt"
var PayUBaseUrl = "https://test.payu.in"
For live
//Production
var merchantKey = “xxxxxx”
var salt = “xxxxx”
var PayUBaseUrl = "https://secure.payu.in"
let productInfo = “Myapp” //It can be Project name or anything else
let firstName = “Santoshi” //Details of user whose is purchasing order
let email = “santoshi#app.com" //Details of user whose is purchasing order
let phone = "xxxxxxxxx" //Details of user whose is purchasing order
let sUrl = "www.google.com" //By this URL we match whether payment got success or failure
let fUrl = "www.google.com" //By this URL we match whether payment got success or failure
let service_provider = "payu_paisa"
var txnid1: String! = "" //Its an unique id which can give order a specific order number.
let totalPriceAmount = "1.0"
Above viewdidload do like this
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(true)
initPayment()
}
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(true)
}
In viewdidload do like this
override func viewDidLoad() {
super.viewDidLoad()
Webview.delegate = self
// Do any additional setup after loading the view.
}
Create payment and Generate Hash key
func initPayment() {
txnid1 = “Myapp\(String(Int(NSDate().timeIntervalSince1970)))"
//Generating Hash Key
let hashValue = String.localizedStringWithFormat("%#|%#|%#|%#|%#|%#|||||||||||%#",merchantKey,txnid1,totalPriceAmount,productInfo,firstName,email,salt)
let hash = self.sha1(string: hashValue)
let postStr = "txnid="+txnid1+"&key="+merchantKey+"&amount="+totalPriceAmount+"&productinfo="+productInfo+"&firstname="+firstName+"&email="+email+"&phone="+phone+"&surl="+sUrl+"&furl="+fUrl+"&hash="+hash+"&service_provider="+service_provider
let url = NSURL(string: String.localizedStringWithFormat("%#/_payment", PayUBaseUrl))
let request = NSMutableURLRequest(url: url! as URL)
do {
let postLength = String.localizedStringWithFormat("%lu",postStr.characters.count)
request.httpMethod = "POST"
request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Current-Type")
request.setValue(postLength, forHTTPHeaderField: "Content-Length")
request.httpBody = postStr.data(using: String.Encoding.utf8)
Webview.loadRequest(request as URLRequest)
}
catch let error as NSError
{
print(error)
}
}
Finally Do this
func sha1(string:String) -> String {
let cstr = string.cString(using: String.Encoding.utf8)
let data = NSData(bytes: cstr, length: string.characters.count)
var digest = [UInt8](repeating: 0, count:Int(CC_SHA512_DIGEST_LENGTH))
CC_SHA512(data.bytes, CC_LONG(data.length), &digest)
let hexBytes = digest.map { String(format: "%02x", $0) }
return hexBytes.joined(separator: "")
}
func webViewDidFinishLoad(_ webView: UIWebView) {
let requestURL = self.Webview.request?.url
let requestString:String = (requestURL?.absoluteString)!
if requestString.contains("https://www.payumoney.com/mobileapp/payumoney/success.php") {
print("success payment done")
}else if requestString.contains("https://www.payumoney.com/mobileapp/payumoney/failure.php") {
print("payment failure")
}
}
func webView(_ webView: UIWebView, didFailLoadWithError error: Error) {
let requestURL = self.Webview.request?.url
print("WebView failed loading with requestURL: \(requestURL) with error: \(error.localizedDescription) & error code: \(error)")
if error._code == -1009 || error._code == -1003 {
showAlertView(userMessage: "Please check your internet connection!")
}else if error._code == -1001 {
showAlertView(userMessage: "The request timed out.")
}
}
func showAlertView(userMessage:String){
}

Answer 2

I have Faced Same problem and i have got solution of this problem.
In my code this line generate optional values --> let hashSequence : NSString = "(params.key!)|(txnid)|(params.amount!)|(params.productinfo!)|(params.firstname!)|(params.email!)|||||||||||(params.merchantid!)" as NSString
remove optional from the values.