get object from json string in iOS - Xcode - ios

Question

i have "JSON" String like this.
**
{"success":true,"domains":[{"URL":"","name":"Test
Alpha","id":"100"}]}
**
i want to check is success is true and, if it is true, get the URL.
how can i do this in iPhone application - xcode?

Answer 1

NSData* data = [myStr dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary* dictionary = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:&error];
if(YES == dictionary[#"success"])
{
NSString *urlString = dictionary[#"domains"][0][#"URL"];
}

Answer 2

May be hep you.
For example your response is NSData like below :
NSData *data = [NSURLConnection sendSynchronousRequest:request
returningResponse:nil
error:&error];
NSMutableDictionary *_dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:&err];
NSString *Success = [_dict valueForKey:#"success"];
You will get your desire output in Success.

Answer 3

Use NSJSONSerialization to get an NSMutableDictionary, check if success is true (YES), and if so, get the URL. E.g., the following should result in URL: www.mydomain.com being output to the debug window:
NSString *jsonString = #"{\"success\":true,\"domains\":[{\"URL\":\"www.mydomain.com\",\"name\":\"Test Alpha\",\"id\":\"100\"}]}";
NSData *jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
NSMutableDictionary *dictionary = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers error:nil];
BOOL success = [dictionary objectForKey:#"success"];
if (success) {
NSMutableArray *array = [dictionary objectForKey:#"domains"];
NSMutableDictionary *domainsDictionary = [array firstObject];
NSString *urlString = [domainsDictionary objectForKey:#"URL"];
NSLog(#"URL: %#", urlString);
}