Getting an XML file from a URL into an NSData object?

Question

I need to load an XML file from a URL into an NSData object for further analysis with some libraries I already have (but they ask me a .xml file as an NSData), how can I do this?

The format of the URL will be something like this:

http://127.0.0.1/config.xml

Answer 1

Assuming this is UTF-8 data. If it is local (i.e. inside the package) something like:

NSError *error;
NSString* contents = [NSString stringWithContentsOfFile:PATHTOLOCALFILE 
                               encoding:NSUTF8StringEncoding
                               error:&error];
NSData* xmlData = [contents dataUsingEncoding:NSUTF8StringEncoding];

, - . , . , - ASIHTTPConnection, .

NSError *error;
NSString* contents = [NSString stringWithContentsOfUrl:[NSURL URLWithString:URLOFXMLFILE] 
                               encoding:NSUTF8StringEncoding
                               error:&error];
NSData* xmlData = [contents dataUsingEncoding:NSUTF8StringEncoding];

Answer 2

NSData - (id)initWithContentsOfURL:(NSURL *)aURL. :

http://developer.apple.com/documentation/Cocoa/Reference/Foundation/Classes/NSData_Class/Reference/Reference.html