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    <p>There's lots of ways you can do this depending on the behavior you want.</p> <p>You can send a bunch of asynchronous requests at once, track the number of requests that have been completed, and do something once they're all done:</p> <pre><code>NSInteger outstandingRequests = [requestsArray count]; for (NSURLRequest *request in requestsArray) { [NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) { [self doSomethingWithData:data]; outstandingRequests--; if (outstandingRequests == 0) { [self doSomethingElse]; } }]; } </code></pre> <p>You could chain the blocks together:</p> <pre><code>NSMutableArray *dataArray = [NSMutableArray array]; __block (^handler)(NSURLResponse *response, NSData *data, NSError *error); NSInteger currentRequestIndex = 0; handler = ^{ [dataArray addObject:data]; currentRequestIndex++; if (currentRequestIndex &lt; [requestsArray count]) { [NSURLConnection sendAsynchronousRequest:[requestsArray objectAtIndex:currentRequestIndex] queue:[NSOperationQueue mainQueue] completionHandler:handler]; } else { [self doSomethingElse]; } }; [NSURLConnection sendAsynchronousRequest:[requestsArray objectAtIndex:0] queue:[NSOperationQueue mainQueue] completionHandler:handler]; </code></pre> <p>Or you could do all the requests synchronously in an ansynchronous block:</p> <pre><code>dispatch_queue_t callerQueue = dispatch_get_current_queue(); dispatch_queue_t downloadQueue = dispatch_queue_create("Lots of requests", NULL); dispatch_async(downloadQueue, ^{ for (NSRURLRequest *request in requestsArray) { [dataArray addObject:[NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil]]; } dispatch_async(callerQueue, ^{ [self doSomethingWithDataArray:dataArray]; }); }); }); </code></pre> <p>P.S. If you use any of these you should add some error checking.</p>
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    1. PONSURLConnection sendAsynchronousRequest:queue:completionHandler: making multiple requests in a row?
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    1. USyuji
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    1. CODoesn't dispatching a synchronous request in a dispatch_asycn cause memory leaks?
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    2. COMemory leaks? Why?
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    3. COI guess I was under the impression that synchronous request in a background thread was bad. But using dispatch_async isn't really a background thread?
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