CODEWITHSUNDEEP
objective-cquery-stringnsurl
Jimmery
Jimmery

Reputation: 10139

objective c: getting xml file with querystring

So Ive built an XML parser using the tutorial here: http://www.codeproject.com/Articles/248883/Objective-C-Fundamentals-NSXMLParser

My problem is that the XML file I am calling requires a querystring parameter. An example url would be something like:

http://domain.com/xml.php?id=00idcode00

Without the id= the XML file just returns a single XML element <error>No id specified</error>; with an id specified the XML file returns 50 odd XML elements.

My problem is that no matter what I try the XML file always returns the <error>. How do I get NSURL to use the querystring?

Here is my code:

NSString *someId = @"00idcode00";
NSString *urlString = [NSString stringWithFormat:@"http://domain.com/xml.php?id=%@", someId];
NSURL *url = [NSURL URLWithString:urlString];

parser=[[NSXMLParser alloc] initWithContentsOfURL:url];
[parser setDelegate:self];
[parser parse];

NSLog(@"query: %@",[url query]);

And this NSLogs the following:

Started element error
Found an element named: error with a value of: No id specified.
query: id=00idcode00

The last line where I output the query of url implies that the NSURL has the right querystring, but the response of the XML file suggests that NSURL is not using the querystring.

Can anybody help?

Upvotes: 1

Views: 441

Answers (1)

rmaddy
rmaddy

Reputation: 318954

Build the string first, then the URL.

NSString *someId = @"00idcode00";
NSString *urlString = [NSString stringWithFormat:@"http://domain.com/xml.php?Id=%@", someId];
NSURL *url = [NSURL URLWithString:urlString];

And the error states the query param is Id, not id.

Upvotes: 2

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