iOS9 sendSynchronousRequest deprecated

Question

Warning:\'sendSynchronousRequest(_:returningResponse:)\' was deprecated in iOS 9.0: Use [NSURLSession dataTaskWithRequest:completionHandler:] (see NSURLSe

Answer 1

If you need to block the current thread (like Mike Keskinov's answer), best to use gdc semaphore instead of doing a [NSThread sleepForTimeInterval:0]. e.g.

dispatch_semaphore_t semaphore = dispatch_semaphore_create(0);
NSURLSession *session = [NSURLSession sharedSession];
[[session dataTaskWithURL:[NSURL URLWithString:londonWeatherUrl]
          completionHandler:^(NSData *data,
                              NSURLResponse *response,
                              NSError *error) {
            // handle response
            dispatch_semaphore_signal(semaphore);

  }] resume];

dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER);

and Swift (tested on 5.0):

let semaphore = DispatchSemaphore(value:0)

URLSession.shared.dataTask(with: serverUrl) { (httpData, response, error) in
    // handle response
    semaphore.signal()
}.resume()

semaphore.wait()