JSON iOS failed Error

Question

So I have a web service that returns this JSON:

[{"other_user":"54","distance":"1 ft","duration":"1 min"},{"other_user":"55","distance":"2 ft","duration":"5 min"}]

Then in my ios app I use:

NSString *responseString = [request responseString];
    NSArray *responseArray = [responseString JSONValue];
    for (NSDictionary* item in responseArray) {
        NSString *otherUser = [item objectForKey:@"other_user"];
        NSString *otherDistance = [item objectForKey:@"distance"];
        NSString *otherDuration = [item objectForKey:@"duration"];

       NSLog(@"user: %@  distance: %@  time: %@", otherUser, otherDistance, otherDuration);
    }

but I am getting this error:

-JSONValue failed. Error is: Illegal start of token [S]

Any help is appreciated, I have no Idea where to look/debug

Validate your JSON response (jsonlint.com) to see if its a valid JSON object. And Which JSON Parser are you using to parse the JSON response in your project ? — 0x8badf00d
– 0x8badf00d, Commented Feb 23, 2012 at 4:08
Print out responseString. I'm guessing it's not valid JSON. — Hot Licks
– Hot Licks, Commented Feb 23, 2012 at 4:28
You're right, I had some echos in there. I feel stupid now. Sorry for wasting your time. — mkral
– mkral, Commented Feb 23, 2012 at 4:37

timthetoolman · Accepted Answer · 2012-02-23 04:27:25Z

1

try the following:

SBJSON *parser = [[SBJSON alloc] init];
NSString *responseString = [request responseString];

NSError *jsonError=nil;
NSArray *responseArray = [parser objectWithString: responseString error: &jsonError];

if (jsonError==nil) {
   for (NSDictionary* item in responseArray) {
      NSString *otherUser = [item objectForKey:@"other_user"];
      NSString *otherDistance = [item objectForKey:@"distance"];
      NSString *otherDuration = [item objectForKey:@"duration"];

      NSLog(@"user: %@  distance: %@  time: %@", otherUser, otherDistance, otherDuration);
   }
}

Good Luck

t

answered Feb 23, 2012 at 4:27

timthetoolman

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3 Comments

mkral Over a year ago

Tried this but apparently jsonError!=nil

timthetoolman Over a year ago

then your json is probably invalid.

mkral Over a year ago

Yea, I guess I had some echos in the PHP that I didn't comment out after testing. which messed it up, it's working now. Thanks for your help

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