Just use this function for getting JSON

function

func userResponse(){
    // Prepare URL
    let url = URL(string: "http://ba.pakizatvl.com:8070/CRAPI.asmx/GetUserLogin")
    guard let requestUrl = url else { fatalError() }
    // Prepare URL Request Object
    var request = URLRequest(url: requestUrl)
    request.httpMethod = "POST"
     
    // HTTP Request Parameters which will be sent in HTTP Request Body
    let postString = "UId=rupun&UPas=Rupun";
    // Set HTTP Request Body
    request.httpBody = postString.data(using: String.Encoding.utf8);
    // Perform HTTP Request
    let task = URLSession.shared.dataTask(with: request) { (data, response, error) in
            // Check for Error
            if let error = error {
                print("Error took place \(error)")
                return
            }
            // Convert HTTP Response Data to a String
            if let data = data, let dataString = String(data: data, encoding: .utf8) {
                //print("Response data string:\n \(dataString)")
                let replaced = dataString.replacingOccurrences(of: "<?xml version=\"1.0\" encoding=\"utf-8\"?>", with: "")
                let replaced2 = replaced.replacingOccurrences(of: "<string xmlns=\"http://172.16.61.201:8070/\">", with: "")
                let replaced3 = replaced2.replacingOccurrences(of: "</string>", with: "")
                print("Response data string: \(replaced3)")
                
                if let data = replaced3.data(using: String.Encoding.utf8) {
                    do {
                        let json = try JSONSerialization.jsonObject(with: data, options: .mutableContainers) as? [String:Any]
                        if let userResponse = json?["LogStatus"] {
                            print("The response is at \(userResponse)")
                            
                        } else {
                            print("Couldn't find the user")
                        }

                    } catch {
                        print("Something went wrong")
                    }
                }
        }
    }
    task.resume()
    
}