Passing Spanish Language Data through JSON - iphone

Question

I am fetching location data from foursquare api and then passing this data to webservice to insert in the database.
Now e.g. when i get location data for Mexico city then there are some special characters in it which gives following error:-
Unrecognized escape sequence. (13443):
Right now i am using following encoding for JSON parsing:-
NSString *requestString = [jsonstring UTF8String];
How can i parse Special character(Spanish Data) e.g Éspanol in JSON?
Any solution?
Thanks.

Answer 1

I was also having the same issue earlier with json. I solved this special character issue by using the following code:-
+(NSString *)http_post_method_changed:(NSString *)url content:(NSString *)jsonContent
{
NSURL *theURL = [NSURL URLWithString:url];
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:theURL cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:20.0f];
NSData *requestData = [jsonContent dataUsingEncoding:NSUTF8StringEncoding];
[theRequest setHTTPMethod:#"POST"];
[theRequest setValue:#"application/json" forHTTPHeaderField:#"Accept"];
[theRequest setValue:#"application/json; charset=UTF-8" forHTTPHeaderField:#"Content-Type"];
[theRequest setValue:[NSString stringWithFormat:#"%d", [requestData length]] forHTTPHeaderField:#"Content-Length"];
[theRequest setHTTPBody: requestData];
NSURLResponse *theResponse = NULL;
NSError *theError = NULL;
NSData *theResponseData = [NSURLConnection sendSynchronousRequest:theRequest returningResponse:&theResponse error:&theError];
NSString *data=[[NSString alloc]initWithData:theResponseData encoding:NSUTF8StringEncoding];
NSLog(#"url to send request= %#",url);
NSLog(#"response1111:-%#",data);
return data;
}
Pass your url and json to send and it will provide you the desired response.

Answer 2

Did you use this?
NSArray *dataArray =
[NSJSONSerialization JSONObjectWithData:_data
options:NSJSONReadingAllowFragments
error:&error];
Make sure (by consulting the forsquare api docs) that the feed is indeed in UTF-8 - then the above should work without errors.
This assumes the API feed is sending you an array, use NSDictionary otherwise.