SWIFT: HTTP request

NSURLConnection.swift

let url = NSURL(string: "http://www.example.com")
let request = NSURLRequest(URL: url!)

NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue()) {(response, data, error) in
    // ...
}

NSURLSession.swift

let url = NSURL(string: "http://www.example.com")

let task = NSURLSession.sharedSession().dataTaskWithURL(url!) {(data, response, error) in
    // ...
}

task.resume()