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Asked: 2026-05-14T02:49:03+00:00

I am just testing an app to get data off our web server, previously

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I am just testing an app to get data off our web server, previously I had been using:

NSURL, NSURLRequest, NSURLConnection etc. to get the data that I wanted.

But I have just noticed that if I swap to using XML I can simply do the following and pass the results to NSXMLParser:

NSURL *url = [NSURL URLWithString:@"https://www.fuzzygoat.com/turbine?nbytes=1&fmt=xml"];

Am I right in thinking that if your just after XML this is an acceptable method? It just seems strongly short compared to what I was doing before?

gary

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1 Answer

  1. Editorial Team

    That code only creates a URL object that represents a URL. It doesn’t make any request or download any data. You still need to use NSURLRequest and NSURLConnection in order to actually download any data from the server.

    Also, stay away from methods like ‘initWithContentsOfURL:` and friends, unless you understand that they will block the thread that they are called on until complete. For network services, this method shouldn’t be used because it’ll block your UI for an indeterminate time, because you can’t predict how fast the internet connection will be wherever the app is used.

    NSURLConnection‘s asynchronous request system is exactly what you need. It won’t block the UI, and provides a nice encapsulated interface to downloading data from a remote location.

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