Using NSURLSession from a Swift command line program

Question

I\'m trying to test a little proof-of-concept command line app prior to integrating it into a larger app. What I\'m trying to do is download some data using NSURLSession usi

Answer 1

Try this

let sema = DispatchSemaphore( value: 0)

let url = URL(string: "https://upload.wikimedia.org/wikipedia/commons/4/4d/Cat_November_2010-1a.jpg")!;

let task = URLSession.shared.dataTask(with: url) { (data, response, error) in
  print("after image is downloaded");
  sema.signal(); // signals the process to continue
};

task.resume();
sema.wait(); // sets the process to wait