如何在swift 3中集成支付网关

Question

我目前正在为那个应用程序做一个应用程序我需要集成支付网关方式但不知道如何在我的应用程序中实现 payu money，从两天开始我只是在阅读教程但仍然没有得到任何解决方案我是 swift 新手，如果有任何帮助，那就太棒了。

Answer 1

https://www.payumoney.com/payment-gateway-integration-guide.html 检查这个，他们为 Swift 和目标 c 添加了 iOS sdk in payU money 我希望它对你有帮助。

Answer 2

在https://codeload.github.com/payu-intrepos/PayUMoney-IOS-SDK/zip/master有PayU为swift提供的SDK和示例

如果你想集成payU那么你必须做桥才能使用SDK。

https://developer.apple.com/library/content/documentation/Swift/Conceptual/BuildingCocoaApps/MixandMatch.html

这是我对 Swift 2.3 的回答：https://stackoverflow.com/a/41256507/3548469

您将能够轻松地在 swift 3.0 中进行转换。

Answer 3

这对我有帮助

 import UIKit

var merchantKey = "your live merchant key"
var salt = "your live merchant salt"
var PayUBaseUrl = "https://secure.payu.in"

class PaymentScreen: UIViewController,UIWebViewDelegate {

  @IBOutlet weak var myWebView: UIWebView!

  override func viewDidLoad() {
    super.viewDidLoad()
    self.payPayment()
  }

  func payPayment() {

    var i = arc4random()

    let amount = "1"
    let productInfo = "product"
    let firstName = "SampleName"
    let email = "xxx@gmail.com"
    let phone = "9876543210"
    let sUrl = "https://www.google.com"
    let fUrl = "https://www.bing.com"
    let service_provider = "payu_paisa"

    let strHash:String = self.sha1(String.localizedStringWithFormat("%d%@", i, NSDate()))

    let rangeOfHello = Range(start: strHash.startIndex,
                             end: strHash.startIndex.advancedBy(20))
    let txnid1 = strHash.substringWithRange(rangeOfHello)

    let hashValue = String.localizedStringWithFormat("%@|%@|%@|%@|%@|%@|||||||||||%@",merchantKey,txnid1,amount,productInfo,firstName,email,salt)

    let hash=self.sha1(hashValue)

    let postStr = "txnid="+txnid1+"&key="+merchantKey+"&amount="+amount+"&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))

    print("check my url", url, postStr)

    let request = NSMutableURLRequest(URL: 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.dataUsingEncoding(NSUTF8StringEncoding)
        myWebView.loadRequest(request)
    } catch {

    }

  }

  func webViewDidStartLoad(webView: UIWebView) {

  }

  func webViewDidFinishLoad(webView: UIWebView) {

    let requestURL = self.myWebView.request?.URL
    let requestString:String = (requestURL?.absoluteString)!

    if requestString.containsString("https://www.google.com") {
        print("success payment done")
    }
    else if requestString.containsString("https://www.bing.com") {    
        print("payment failure")
    }
  }

  func webView(webView: UIWebView, didFailLoadWithError error: NSError?) {
    print("double failure")
  }

  func sha1(toEncrypt:String) -> String {
    let data = toEncrypt.dataUsingEncoding(NSUTF8StringEncoding)!
    var digest = [UInt8](count:Int(CC_SHA512_DIGEST_LENGTH), repeatedValue: 0)
    CC_SHA512(data.bytes, CC_LONG(data.length), &digest)
    let hexBytes = digest.map { String(format: "%02x", $0) }
    return hexBytes.joinWithSeparator("")
  }
}