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iOS Build a Weather App with Swift (Retired) Concurrency Using Our JSON Data

Posted by Brandon J
Brandon J
4,204 Points

The video show one way but I get an error saying Error

let baseURL = NSURL(string: "https://api.forecast.io/forecast/\(apiKey)/")
        let forecastURL = NSURL(string: "40.415779, -74.242488", relativeToURL: baseURL)

        let sharedSession = NSURLSession.sharedSession()
        let downloadTask: NSURLSessionDownloadTask = sharedSession.downloadTaskWithURL(forecastURL!, completionHandler: {
            (location: NSURL!, response: NSURLResponse!, error: NSError!) -> Void in

            NSString.stringWithContentsOfURL(url: NSURL(), encoding: UInt(), error: NSErrorPointer())

It says one way in the video but I get errors because of Xcode 6.1

2 Answers

Stephen Whitfield
Stephen Whitfield
16,771 Points

I don't get what you're asking, but that line of code that converts your response to a string is incorrectly formed. Fill in those parameters with the results you get from your request and print to screen in String format. 

let baseURL = NSURL(string: "https://api.forecast.io/forecast/\(apiKey)/")
let forecastURL = NSURL(string: "40.415779, -74.242488", relativeToURL: baseURL)
let sharedSession = NSURLSession.sharedSession()
let downloadTask: NSURLSessionDownloadTask = sharedSession.downloadTaskWithURL(forecastURL!, completionHandler: {
            (location: NSURL!, response: NSURLResponse!, error: NSError!) -> Void in

            var stringedResponse = NSString(contentsOfURL: location, encoding: NSUTF8StringEncoding, error: nil) //pass in your 'location' object from the response you got. Use UTF-8 string encoding. Set the error parameter to nil.
println(stringedResponse)
}
downloadTask.resume()
Brandon J
Brandon J
4,204 Points

Thanks that what I was looking for

Sean Lee
Sean Lee
5,196 Points
Sean Lee
Sean Lee
5,196 Points

I don't get what you're asking either, but try taking out the space out after the comma in your coordinates: "40.415779, -74.242488"