I have written two following functions for using NSURLSession.
func getStringFromRequest(completionHandler:(success:Bool, data: NSData?) -> Void) {
let prefs = NSUserDefaults.standardUserDefaults()
var conn_timeout = prefs.stringForKey("conn_timeout")!
var IP = prefs.stringForKey("IP")!
var port = prefs.stringForKey("Port")!
prefs.synchronize()
var request = NSMutableURLRequest(URL: NSURL(string: "http://\(IP):\(port)/")!)
var response: NSURLResponse?
var error: NSError?
var jsonString = ["osname":"iOS","mobile_manufacturer" : "Apple","mobile_model" : "iPhone Simulator","osversion" : "8.4"] as Dictionary<String, String>
request.HTTPBody = NSJSONSerialization.dataWithJSONObject(jsonString, options: nil, error: &error)
request.HTTPMethod = "POST"
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.setValue("gzip", forHTTPHeaderField: "Accept-encoding")
let task = NSURLSession.sharedSession().dataTaskWithRequest(request) { (data, response, error) -> Void in
if let unwrappedError = error {
print("error=\(unwrappedError)")
}
else {
if let unwrappedData = data {
completionHandler(success: true, data: unwrappedData)
return
}
}
completionHandler(success: false, data: nil)
}
task.resume()
}
func performPost() -> NSDictionary {
var result = NSDictionary()
getStringFromRequest { (success, data) -> Void in
if (success) {
if let unwrappedData = data {
if let responseString = NSString(data: unwrappedData, encoding: NSUTF8StringEncoding) {
println("------------------>>>>>>NSURLSession>>>>>>>-------------------------->\n: \(responseString)")
result = (NSJSONSerialization.JSONObjectWithData(unwrappedData, options: NSJSONReadingOptions.allZeros, error: nil) as? NSDictionary)!
}
}
}
else {
print(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>Failed>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>")
}
}
}
I am calling the performPost function as follows:
self.connectionHelper.performPost()
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0), { ()->() in
println("self.connectionHelper.result>>>>>>========================================>>>>>>> : \(self.connectionHelper.result)!")
})
Output is as follow:
self.connectionHelper.result>>>>>>========================================>>>>>>> : {
}!
------------------>>>>>>NSURLSession>>>>>>>-------------------------->
After looking at the output of the performPost function I can say that the execution to the pritln function first but it is called later than performPost.
How can I set the value of result first in the performPost function then prints its value after completion of the performPost function.
Can it be possible?
Instead of calling dispatch_async to print the results, pass a completion handler block to your performPost method, and print the results in that completion handler block.
Related
Essentially I am creating a login view controller in my swift app that verifies and logs in a user.
This is how the app is requesting and going through with the POST HTTP Request:
import Foundation
enum MyResult<T, E: Error> {
case success(T)
case failure(E)
}
class NetworkingService {
let baseUrl = "https://example/example/login.php"
func handleResponse(for request: URLRequest,
completion: #escaping (Result<User, Error>) -> Void) {
let session = URLSession.shared
let task = session.dataTask(with: request) { (data, response, error) in
DispatchQueue.main.async {
guard let unwrappedResponse = response as? HTTPURLResponse else {
completion(.failure(NetworkingError.badResponse))
return
}
print(unwrappedResponse.statusCode)
switch unwrappedResponse.statusCode {
case 200 ..< 300:
print("success")
default:
print("failure")
}
if let unwrappedError = error {
completion(.failure(unwrappedError))
return
}
if let unwrappedData = data {
do {
let json = try JSONSerialization.jsonObject(with: unwrappedData, options: [])
print(json)
if let user = try? JSONDecoder().decode(User.self, from: unwrappedData) {
completion(.success(user))
} else {
let errorResponse = try JSONDecoder().decode(ErrorResponse.self, from: unwrappedData)
completion(.failure(errorResponse))
}
} catch {
completion(.failure(error))
}
}
}
}
task.resume()
}
func request(endpoint: String,
parameters: [String: Any],
completion: #escaping (Result<User, Error>) -> Void) {
guard let url = URL(string: baseUrl + endpoint) else {
completion(.failure(NetworkingError.badUrl))
return
}
var request = URLRequest(url: url)
var components = URLComponents()
var queryItems = [URLQueryItem]()
for (key, value) in parameters {
let queryItem = URLQueryItem(name: key, value: String(describing: value))
queryItems.append(queryItem)
}
components.queryItems = queryItems
let queryItemData = components.query?.data(using: .utf8)
request.httpBody = queryItemData
request.httpMethod = "POST"
request.addValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
handleResponse(for: request, completion: completion)
}
func request(endpoint: String,
loginObject: Login,
completion: #escaping (Result<User, Error>) -> Void) {
guard let url = URL(string: baseUrl + endpoint) else {
completion(.failure(NetworkingError.badUrl))
return
}
var request = URLRequest(url: url)
do {
let loginData = try JSONEncoder().encode(loginObject)
request.httpBody = loginData
} catch {
completion(.failure(NetworkingError.badEncoding))
}
request.httpMethod = "POST"
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
handleResponse(for: request, completion: completion)
}
}
enum NetworkingError: Error {
case badUrl
case badResponse
case badEncoding
}
This is how the structure looks like:
import UIKit
struct User: Decodable {
let id: Int
let name: String
let username: String
}
Because I am working with a mySQL database I am using php script to produce JSON that takes parameters from input.
This is what the JSON looks like:
[
{
"id": "3",
"name": "KevinName",
"username": "kName"
}
]
The status code returns success 200 but no data is loaded into the app and I get the error
The data couldn't be read because it isn't in the correct format
I believe it has something to do with the PHP script that creates the JSON
<?php
$con=mysqli_connect("localhost","username","password","db");
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
// This SQL statement selects ALL from the table 'Equipment'
$username = $_POST['username'];
$password = $_POST['password'];
$sql = "SELECT id, driver_name, username FROM table1 WHERE (username = '$username') and password = '$password' ";
if ($result = mysqli_query($con, $sql))
{
// Create temporary connection
$resultArray = array();
$tempArray = array();
// Look through each row
while($row = $result->fetch_object())
{
$tempArray = $row;
array_push($resultArray, $tempArray);
}
echo json_encode($resultArray);
}
mysqli_close($con);
?>
I have this func in a Swift file, and it returns the value of the data in the database and prints it out in the counsel.
I want to use the value in the other View Controller but I can't get this to work, so I hope somebody can help me.
It is the nameUser, statusUser and pointUser I like to use in other View Controller.
import Foundation
import UIKit
var code = "100"
var getStatusUSer = ""
class getJSON: NSObject, URLSessionDataDelegate
{
//properties
var data : NSMutableData = NSMutableData()
func downloadItems()
{
let url = NSMutableURLRequest(url: NSURL(string: "http://www.hholm.dk/time_app/qrcode4.php")! as URL)
url.httpMethod = "POST"
let postString = "username=\(code)"
url.httpBody = postString.data(using: String.Encoding.utf8)
print(url.httpBody = postString.data(using: String.Encoding.utf8))
var session: URLSession!
let configuration = URLSessionConfiguration.default
session = URLSession(configuration: configuration, delegate: self, delegateQueue: nil)
let task = session.dataTask(with: url as URLRequest)
task.resume()
}
func urlSession(_ session: URLSession, dataTask: URLSessionDataTask, didReceive data: Data)
{
self.data.append(data as Data);
}
func urlSession(_ session: URLSession, task: URLSessionTask, didCompleteWithError error: Error?)
{
if error != nil
{
print("Not Found", error)
}
else
{
print("Ok")
self.parseJSON()
}
}
func parseJSON()
{
var jsonResult: NSArray = NSArray()
do
{
jsonResult = try JSONSerialization.jsonObject(with: self.data as Data, options:JSONSerialization.ReadingOptions.allowFragments) as! NSArray
print("jsonResult.count",jsonResult.count)
}
catch let error as NSError
{
print("jsonResult: ", error)
}
var jsonElement: NSDictionary = NSDictionary()
var contador = 0
for i in (0..<jsonResult.count)
{
jsonElement = jsonResult[i] as! NSDictionary
if let nameUser = jsonElement["name"] as? String,
let pointUser = jsonElement["point"] as? String,
let statusUser = jsonElement["status"] as? String
{
getStatusUSer = statusUser
print("Name: ", nameUser)
print("Status: ", statusUser)
print("Point: ", pointUser)
}
}
}
}
Hi Woof this is what i have in my viewcontroler:
import UIKit
class inputcodeViewController: UIViewController {
#IBOutlet weak var input: UITextField!
#IBAction func but(_ sender: Any) {
downloadItems()
}
func downloadItems(){
let getJson = GetJSON()
//setting the delegate
getJson.delegate = self
//starting download
getJson.downloadItems()
}
}
extension inputcodeViewController: GetJSONDelegate {
func didReceiveValues(name: String, status: String, point: String){
//now you can use values in your view controller
}
}
how can i print the values
You can use protocol to return those values:
import Foundation
import UIKit
var code = "100"
var getStatusUSer = ""
//define the protocol
protocol GetJSONDelegate {
func didReceiveValues(name: String, status: String, point: String)
}
//I've changed the first char of the class name to uppercase
class GetJSON: NSObject, URLSessionDataDelegate{
//properties
var data : NSMutableData = NSMutableData()
//delegate
var delegate: GetJSONDelegate?
func downloadItems(){
let url = NSMutableURLRequest(url: NSURL(string: "http://www.hholm.dk/time_app/qrcode4.php")! as URL)
url.httpMethod = "POST"
let postString = "username=\(code)"
url.httpBody = postString.data(using: String.Encoding.utf8)
print(url.httpBody = postString.data(using: String.Encoding.utf8))
var session: URLSession!
let configuration = URLSessionConfiguration.default
session = URLSession(configuration: configuration, delegate: self, delegateQueue: nil)
let task = session.dataTask(with: url as URLRequest)
task.resume()
}
func urlSession(_ session: URLSession, dataTask: URLSessionDataTask, didReceive data: Data)
{
self.data.append(data as Data);
}
func urlSession(_ session: URLSession, task: URLSessionTask, didCompleteWithError error: Error?)
{
if error != nil
{
print("Not Found", error)
}
else
{
print("Ok")
self.parseJSON()
}
}
func parseJSON()
{
var jsonResult: NSArray = NSArray()
do
{
jsonResult = try JSONSerialization.jsonObject(with: self.data as Data, options:JSONSerialization.ReadingOptions.allowFragments) as! NSArray
print("jsonResult.count",jsonResult.count)
}
catch let error as NSError
{
print("jsonResult: ", error)
}
var jsonElement: NSDictionary = NSDictionary()
var contador = 0
for i in (0..<jsonResult.count)
{
jsonElement = jsonResult[i] as! NSDictionary
if let nameUser = jsonElement["name"] as? String,
let pointUser = jsonElement["point"] as? String,
let statusUser = jsonElement["status"] as? String
{
getStatusUSer = statusUser
print("Name: ", nameUser)
print("Status: ", statusUser)
print("Point: ", pointUser)
//here we will return received data to the delegate
self.delegate?.didReceiveValues(name: nameUser, status: statusUser, point: pointUser)
}
}
}
}
Now we need to set your controller as a delegate for that protocol:
//this is an example, you need to add the methods described in your controller where you want to use those values
class YourViewController: UIViewController{
// the method that is called by you to get values
func downloadItems(){
let getJson = GetJSON()
//setting the delegate
getJson.delegate = self
//starting download
getJson.downloadItems()
}
}
//defining protocol methods in the extension of the view controller
extension YourViewController: GetJSONDelegate {
func didReceiveValues(name: String, status: String, point: String){
//now you can use values in your view controller
}
}
I have my controller like this -
def create
if (#user = User.find_by_email(params[:email])) && #user.valid_password?(params[:password])
render json: #user.as_json(only: [:email,:authentication_token]),status: :created
else
render json:('Unauthorized Access')
end
end
When I use Postman to make this request, I choose Body, and form data and adds in the email and password. And this WORKS
How to use swift to do the same? This is what I have tried
let url = URL(string: "http://localhost:3000/api/v1/user_serialized/")
let config = URLSessionConfiguration.default
let request = NSMutableURLRequest(url: url!)
request.httpMethod = "POST"
let bodyData = "email=Test#test.com&password=Test1234"
request.httpBody = bodyData.data(using: String.Encoding.utf8);
let session = URLSession(configuration: config)
let task = session.dataTask(with: url! as URL, completionHandler: {(data, response, error) in
let json = JSON(data:data!)
debugPrint(json)
})
task.resume()
I have made a Custom HTTP class where we can sent url, parameter and we will get Data from API. Below is the class.
import Foundation
//HTTP Methods
enum HttpMethod : String {
case GET
case POST
case DELETE
case PUT
}
class HttpClientApi: NSObject{
//TODO: remove app transport security arbitary constant from info.plist file once we get API's
var request : URLRequest?
var session : URLSession?
static func instance() -> HttpClientApi{
return HttpClientApi()
}
func makeAPICall(url: String,params: Dictionary<String, Any>?, method: HttpMethod, success:#escaping ( Data? ,HTTPURLResponse? , NSError? ) -> Void, failure: #escaping ( Data? ,HTTPURLResponse? , NSError? )-> Void) {
request = URLRequest(url: URL(string: url)!)
logging.print("URL = \(url)")
if let params = params {
let jsonData = try? JSONSerialization.data(withJSONObject: params, options: .prettyPrinted)
request?.setValue("application/json", forHTTPHeaderField: "Content-Type")
request?.httpBody = jsonData//?.base64EncodedData()
//paramString.data(using: String.Encoding.utf8)
}
request?.httpMethod = method.rawValue
let configuration = URLSessionConfiguration.default
configuration.timeoutIntervalForRequest = 30
configuration.timeoutIntervalForResource = 30
session = URLSession(configuration: configuration)
//session?.configuration.timeoutIntervalForResource = 5
//session?.configuration.timeoutIntervalForRequest = 5
session?.dataTask(with: request! as URLRequest) { (data, response, error) -> Void in
if let data = data {
if let response = response as? HTTPURLResponse, 200...299 ~= response.statusCode {
success(data , response , error as? NSError)
} else {
failure(data , response as? HTTPURLResponse, error as? NSError)
}
}else {
failure(data , response as? HTTPURLResponse, error as? NSError)
}
}.resume()
}
}
Now you can refer below code to get how to make an API call.
var paramsDictionary = [String:Any]()
paramsDictionary["username"] = "BBB"
paramsDictionary["password"] = "refef"
HttpClientApi.instance().makeAPICall(url: "Your URL", params:paramsDictionary, method: .POST, success: { (data, response, error) in
// API call is Successfull
}, failure: { (data, response, error) in
// API call Failure
})
I think you should pass your request instead of the url to session.dataTask
here is how my code looks like:
private let url = URL(string: "http://example.com/")!
func httpPost(jsonData: Data) {
if !jsonData.isEmpty {
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.httpBody = jsonData
URLSession.shared.getAllTasks { (openTasks: [URLSessionTask]) in
NSLog("open tasks: \(openTasks)")
}
let task = URLSession.shared.dataTask(with: request, completionHandler: { (responseData: Data?, response: URLResponse?, error: Error?) in
NSLog("\(response)")
})
task.resume()
}
}
Here is the Example of POST API for calling Login API with parameters "emailaddress" and "password" with userEmailID and Userpassword as two strings holding values for email and password respectively.
You can call this POST API anywhere in your view controller, as given below:
self.postLoginCall(url: "Your post method url") example: self.postLoginCall(url: "http://1.0.0.1/api/login.php")
func postLoginCall(url : String){
let request = NSMutableURLRequest(url: NSURL(string: url)! as URL)
request.httpMethod = "POST"
let postString = "emailaddress=\(userEmailID!)&password=\(Userpassword!)"
print(postString)
request.setValue("application/x-www-form-urlencoded; charset=utf-8", forHTTPHeaderField: "Content-Type")
request.httpBody = postString.data(using: String.Encoding.utf8)
let task = URLSession.shared.dataTask(with: request as URLRequest) { data, response, error in
guard error == nil && data != nil else { // check for fundamental networking error
print("error=\(error)")
return
}
do {
if let responseJSON = try JSONSerialization.jsonObject(with: data!) as? [String:AnyObject]{
print(responseJSON)
print(responseJSON["status"]!)
self.response1 = responseJSON["status"]! as! Int
print(self.response1)
//Check response from the sever
if self.response1 == 200
{
OperationQueue.main.addOperation {
//API call Successful and can perform other operatios
print("Login Successful")
}
}
else
{
OperationQueue.main.addOperation {
//API call failed and perform other operations
print("Login Failed")
}
}
}
}
catch {
print("Error -> \(error)")
}
}
task.resume()
}
Hello everyone I share below an example of a function to make a request in POST with SWIFT 5+.
This function allows you to send a POST request with an API entry point and parameters in the form of [[String: String]] and an Int to determine the output action.
For the output actions we call a function with Switch Case.
The operation is extremely simple. You have to put the two functions in one of your classes.
func MGSetRequestApi(endpoint: String, parameters: [[String: String]], MGSetAction: Int) -> String {
var setReturn: String!
let semaphore = DispatchSemaphore (value: 0)
var MGGetParam: String! = ""
for gate in parameters {
for (key, value) in gate {
let myParam = key + "=" + value + "&"
MGGetParam.append(contentsOf: myParam)
}
}
let postData = MGGetParam.data(using: .utf8)
var request = URLRequest(url: URL(string: endpoint)!,timeoutInterval: 10000)
request.addValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
request.httpMethod = "POST"
request.httpBody = postData
let task = URLSession.shared.dataTask(with: request) { data, response, error in
guard let data = data else {
print(String(describing: error))
semaphore.signal()
return
}
print(String(data: data, encoding: .utf8)!)
setReturn = String(data: data, encoding: .utf8)!
DispatchQueue.main.async {
self.MGRequestAction(MGGetIdRq: MGSetAction, MGGetData: setReturn)
}
semaphore.signal()
}
task.resume()
semaphore.wait()
return setReturn
}
Then implement this function to manage the outputs
func MGRequestAction(MGGetIdRq: Int, MGGetData: String) {
switch MGGetIdRq {
case 1:
// Do something here
case 2:
// Do something else here
case 3:
// Do something else here again
default:
print("Set default action");
}
}
How to use this, you have two possibilities, the first one is to process what the function
MGSetRequestApi(endpoint: String, parameters: [[String: String]], MGSetAction: Int) -> String
returns (String) or to pass by the function
MGRequestAction(MGGetIdRq: Int, MGGetData: String)
which will call your Json parse function.
The MGRequestAction() function takes for parameter an Int for the choice of the action and the String of the return of the request
Now to use it do like this:
_ = MGSetRequestApi(endpoint: MY_END_POINT_API,
parameters: [["KEY_1": "VALUE 1"],
["KEY_2": "VALUE 2"],
["KEY_3": "VALUE 3"],
["KEY_4": "VALUE 4"]],
MGSetAction: 3)
I have a JSON file which i converted to a NSDictionary object. My question is how do i get one single value out from this object? I make a httppost to my webside and then i get an JSON array back with to values "success" and "userId" i want to check on the success if it is true or false.
import UIKit
class ViewController2: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
#IBAction func HttpBtn(sender: AnyObject) {
PostToServer()
HttpPost()
}
func PostToServer()
{
println("Button Presed")
}
func HttpPost()
{
var postString = "email=joakim#and.dk&password=123456"
//Declare URL
var url: NSURL! = NSURL(string: "http://95.85.53.176/nhi/api/app/login")
var request: NSMutableURLRequest = NSMutableURLRequest(URL: url)
//Declare which HTTPMethod
request.HTTPMethod = "POST"
//POST data
request.HTTPBody = postString.dataUsingEncoding(NSUTF8StringEncoding)
let task = NSURLSession.sharedSession().dataTaskWithRequest(request){
data, response, error in
if error != nil
{
println("error=\(error)")
return
}
println("response =\(response)")
var responseString = NSString(data: data, encoding: NSUTF8StringEncoding)
println("responseString =\(responseString)")
var error: NSError?
var myJSON = NSJSONSerialization.JSONObjectWithData(data, options: .MutableLeaves, error: &error) as? NSDictionary
println(myJSON)
}
task.resume()
}
}
output
responseString =Optional({"success":true,"userId":"62"})
Optional({
success = 1;
userId = 62;
})
You can access using its key value like
var success = myJSON["success"]!.intValue
var userId = myJSON["userId"]!.intValue
if(success == 1) //if true
{
//Do something
}
Same with userId
Below is my login function. It's a JSON POST request and before, when the URL was http, it worked flawlessly. I attached a JSON filled with the username/password of the user. Today we added a SSL Certificate and after switching the URL to https, it produced this error:
NSURLConnection/CFURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9843)
I'm not really sure what's going on. I typed that error into google and didn't get any where. I appreciate any help, thank you!
func login(params : Dictionary<String, String>, url : String, postCompleted : (succeeded: Bool, msg: String) -> ()) {
var request = NSMutableURLRequest(URL: NSURL(string: url)!)
var session = NSURLSession.sharedSession()
request.HTTPMethod = "POST"
var err: NSError?
request.HTTPBody = NSJSONSerialization.dataWithJSONObject(params, options: nil, error: &err)
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")
var task = session.dataTaskWithRequest(request, completionHandler: {data, response, error -> Void in
if response != nil {
if response.isKindOfClass(NSHTTPURLResponse) {
httpResponse = response as NSHTTPURLResponse
if let authorizationID = httpResponse.allHeaderFields["Authorization"] as String! {
Locksmith.saveData(["id":authorizationID], forUserAccount: currentUser, inService: "setUpAuthorizationId")
}
else {
println("Failed")
}
}
}
var err: NSError?
var json = NSJSONSerialization.JSONObjectWithData(data, options: .MutableLeaves, error: &err) as? NSDictionary
// Did the JSONObjectWithData constructor return an error? If so, log the error to the console
if(err != nil) {
println(err!.localizedDescription)
let jsonStr = NSString(data: data, encoding: NSUTF8StringEncoding)
println("Error could not parse JSON: '\(jsonStr!)'")
postCompleted(succeeded: false, msg: "Error")
}
else {
// The JSONObjectWithData constructor didn't return an error. But, we should still
// check and make sure that json has a value using optional binding.
if let parseJSON = json {
// Okay, the parsedJSON is here, let's get the value for 'success' out of it
if let status = parseJSON["status"] as? String {
if let extractData = parseJSON["data"] as? NSDictionary {
let extractUserId:Int = extractData["id"] as Int
userId = extractUserId
}
if status == "success" {
postCompleted(succeeded: true, msg: "Logged in.")
} else {
let failMessage = parseJSON["message"] as? String
postCompleted(succeeded: false, msg: failMessage!)
}
}
return
}
else {
// Woa, okay the json object was nil, something went worng. Maybe the server isn't running?
let jsonStr = NSString(data: data, encoding: NSUTF8StringEncoding)
println("Error could not parse JSON: \(jsonStr)")
postCompleted(succeeded: false, msg: "Error")
}
}
})
task.resume()
}
Using This awesome article I was able to fix my problem. All I needed to do was add:
NSObject, NSURLSessionDelegate, NSURLSessionTaskDelegate
after my class name, and then add these two delegates:
func URLSession(session: NSURLSession,
didReceiveChallenge challenge:
NSURLAuthenticationChallenge,
completionHandler:
(NSURLSessionAuthChallengeDisposition,
NSURLCredential!) -> Void) {
completionHandler(
NSURLSessionAuthChallengeDisposition.UseCredential,
NSURLCredential(forTrust:
challenge.protectionSpace.serverTrust))
}
func URLSession(session: NSURLSession, task: NSURLSessionTask, willPerformHTTPRedirection response: NSHTTPURLResponse, newRequest request: NSURLRequest, completionHandler: (NSURLRequest!) -> Void) {
var newRequest : NSURLRequest? = request
println(newRequest?.description);
completionHandler(newRequest)
}
after that in my actual request I just needed to change:
var session = NSURLSession.sharedSession()
to:
var configuration = NSURLSessionConfiguration.defaultSessionConfiguration()
var session = NSURLSession(configuration: configuration, delegate: self, delegateQueue:NSOperationQueue.mainQueue())
hope this helps someone!!