func getServerResponse(){
    var request=URLRequest(url: URL(string: "http://dev.example.com/Api/Account")!)
    let configuration=URLSessionConfiguration.default
    request.httpMethod="GET"
    let task=URLSession.init(configuration: configuration).dataTask(with: request, completionHandler: {(data,response,error) -> Void in

        do {
            if let jsonResult = try JSONSerialization.jsonObject(with: data!, options: []) as? NSDictionary {
                print("Result-->(jsonResult)")
                print((response as! HTTPURLResponse).statusCode)
            }
        } catch let error as NSError {
            print(error.localizedDescription)
        }
    })

    task.resume()

}

func urlSession(_ session: URLSession, task: URLSessionTask, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) {
    let crdential = URLCredential.init(user:"userName", password: "password", persistence: URLCredential.Persistence.none)
    completionHandler(URLSession.AuthChallengeDisposition.useCredential, crdential)

}