http.swift

import Foundation
import XCPlayground

XCPlaygroundPage.currentPage.needsIndefiniteExecution = true

let searchTerm = "philip+glass"
let url = NSURL(string: "https://itunes.apple.com/search?term=\(searchTerm)")
let request: NSURLRequest = NSURLRequest(URL: url!)
let session = NSURLSession.sharedSession()
let task: NSURLSessionDataTask = session.dataTaskWithRequest(request, completionHandler: {
    (data, response, error) in
        if response == nil {
            print("Timeout")
        } else {
            do {
                let jsonDict = try NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions(rawValue: 0)) as? NSDictionary
                if let jsonDict = jsonDict {
                    // BUILD OBJECTS
                } else {
                    // error handling
                }
            } catch let error as NSError {
                // error handling
            }
        }
    }
)

task.resume()