How can I determine the User-Agent for an iOS application's HTTP request?

I have an iOS application that downloads an 开发者_运维知识库xml file using:

NSURL *queryURL = [NSURL URLWithString:query];
NSData *xmlData = [[NSData alloc] initWithContentsOfURL:queryURL];

The call is made to a third-party, so I'm not in control of the servers. The third party needs to know what that user-agent is (they are optimizing the feed based on the user-agent)

My question is how can I determine what my user-agent is? I don't specifically set that anywhere and didn't find anything in the documentation.

The user-agent is undocumented and subject to change. If you want to control the user-agent header, you will need to use NSURLConnection with an NSMutableRequest. Apple's documentation has an example of how to use NSURLConnection.

It has to do with the name of your app (bundle identifier). In the end I just wrote a quick method to call a web server I do have control of, launched the app, and then read the logs from that web server and I could see the exact user-agent information.