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Editorial Team
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Asked: 2026-05-26T05:32:02+00:00

I am needing to write a CalDAV client library for the Mac, and I

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I am needing to write a CalDAV client library for the Mac, and I just wanted to make sure on what would be the best way to write it.

I am wondering if I should just use NSURLRequest or should I go to the socket level, or something in between?

My concern about using just NSURLRequest is that a new connection would be made for each call, instead of having 1 open connection that all “requests” go through.

Am I missing something?

Thoughts? Suggestions?

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1 Answer

  1. Editorial Team

    NSURLRequest doesn’t actually create any connections. It just encapsulates the parameters of the request. NSURLConnection actually creates the connection to the server and sends the request. Under the covers, NSURLConnection instances share and reuse TCP connections, according to this answer:

    NSURLConnection is run many times

    So you should just use NSURLRequest and NSURLConnection if their APIs suit you.

    UPDATE

    Since NSURLConnection has been deprecated since iOS 9 / macOS 10.11, you should use NSURLSession.

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