Temporary file path using swift

Apple has been trying to move away from path-as-string and into NSURL. Here’s one way:

Swift 3:

let directory = NSTemporaryDirectory()
let fileName = NSUUID().uuidString

// This returns a URL? even though it is an NSURL class method
let fullURL = NSURL.fileURL(withPathComponents: [directory, fileName])

Swift 2:

let directory = NSTemporaryDirectory()
let fileName = NSUUID().UUIDString

let fullURL = NSURL.fileURLWithPathComponents([directory, fileName])