Parsing Json to object giving "null" Value - objective-c

Question

Unable to parse this json data to object. Same code i tried with other URL, working correct. Please Suggest where i am doing wrong?
-(void)callAPI{
NSData *data=[NSData dataWithContentsOfURL:[NSURL URLWithString:#"https:s.json"]];
NSError *error=nil;
id response=[NSJSONSerialization JSONObjectWithData:data options:
NSJSONReadingMutableContainers | NSJSONReadingMutableLeaves error:&error];
if (error) {
NSLog(#"%#",[error localizedDescription]);
} else {
NSLog(#"%#",response);}}
Output The data couldn’t be read because it isn’t in the correct format.

Answer 1

I got the very perfect solution for your question which works fine now.Please check the below answer
- (void)callAPI
{
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setHTTPMethod:#"GET"];
[request setURL:[NSURL URLWithString:#"https://dl.dropboxusercontent.com/s/2iodh4vg0eortkl/facts.json"]];
[[[NSURLSession sharedSession] dataTaskWithRequest:request completionHandler:
^(NSData * data,
NSURLResponse * response,
NSError * error) {
NSString *jsonString = [[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding];
NSLog(#"jsonString is: %#", jsonString);
NSData *dataCon = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
id jsonVal = [NSJSONSerialization JSONObjectWithData:dataCon options:0 error:nil];
if([jsonVal isKindOfClass:[NSDictionary class]]) {
NSLog(#"The response starts with NSDictionary");
NSArray *arrJsonVal = [jsonVal objectForKey:#"rows"];
NSMutableArray *arrTitle = [[NSMutableArray alloc]init];
NSMutableArray *arrDesc = [[NSMutableArray alloc]init];
NSMutableArray *arrImage = [[NSMutableArray alloc]init];
for(NSDictionary *dict in arrJsonVal) {
NSString *strTitle = [dict objectForKey:#"title"];
NSString *strDesc = [dict objectForKey:#"description"];
NSString *strImage = [dict objectForKey:#"imageHref"];
[arrTitle addObject:strTitle];
[arrDesc addObject:strDesc];
[arrImage addObject:strImage];
}
NSLog(#"arrTitle is - %#",arrTitle);
NSLog(#"arrDesc is - %#",arrDesc);
NSLog(#"arrImage is - %#",arrImage);
}else {
NSLog(#"The response starts with NSArray");
}
}] resume];
}
The Printed results are
After that
Then Array results are
Finally the results are