Can't get an image from foursquare api, on swift iOS

Im using das quadrat foursquare sdk for swift (QuadratTouch) everything works fine expect getting images they marked in JSON like NSDictionary with "prefix" and "suffix" and UIImage get nil in the end

Parsing JSON and creating a normal url

let parameters = [Parameter.ll:"\(lat),\(long)", Parameter.limit:"35", Parameter.radius:"\(radius)", Parameter.intent:"browse"]
    let currentTask = session.venues.search(parameters) {
        (result) -> Void in
        var places = [Place]()
        if let response = result.response {
            if let venues =  response["venues"] as? NSArray {
                for venue in venues {
                    if let categories = venue["categories"] as? NSArray {
                       let categoryInfo = categories[0] as! NSDictionary
                              if let  location = venue["location"] as? NSDictionary,
                                name = categoryInfo["name"] as? String,
                                address = location["address"] as? String,
                                lat = location["lat"] as? CLLocationDegrees,
                                long = location["lng"] as? CLLocationDegrees,
                                icon = categoryInfo["icon"] as? NSDictionary,
                                prefix = icon["prefix"] as? String,
                                suffix = icon["suffix"] as? String {
                                    let url = prefix + suffix
                                    let pos = CLLocationCoordinate2DMake(lat, long)
                                    places.append(FourSquarePlace(coordinates: pos, title: name, address: address, imageURL:url, photo: nil))
                            }

and image getting method from SessionAuthorizationDelegate

 self.session.downloadImageAtURL(NSURL(string: imageURL)!, completionHandler: { (imageData, error) -> Void in
                    //print(imageData)
                    print(imageURL)
                    if imageData != nil {
                        thisMarker.icon = UIImage(data: imageData!)
                    }
                })

I've tried to paste the ULR from son to browser and got it

AccessDeniedAccess DeniedAF1DF956303F2D6EcRetLqGf3ipb6KOsSJ9YkqiDnmEUkjhEavefWCzjlHQAivKWMLsRMQukWsYiVCYK

i guess maybe it can't add Access Token to image, but its weird cause I'm usind sdk method...

Solution

let url = prefix + suffix

This usage is incorrect. You have to specify the size of image.

ex.

let url = prefix + "100x100" + suffix