iphone - SBJson Parsing : How to drill down? -

i think need clarification on how drill down json values when using sbjson.

here link sample json need parse. https://api.foursquare.com/v2/venues/search?ll=40.7,-74&client_id=5en0wtzzxnlz3ongvybjfvpnpack21b0nws4c2r02mrfjogg&client_secret=uhd0nehnqmqzzwrj4x51dbqnwenp0d0yhg3wfvwj24vjhaoz&radius=4828&v=20120601

if @ parsed json looking location records. problem nothing getting brought in. so, question how can @ location records?

code follows.

- (nsstring *)stringwithurl:(nsurl *)url {     nsurlrequest *urlrequest = [nsurlrequest requestwithurl:url                                                 cachepolicy:nsurlrequestreloadignoringlocalcachedata                                             timeoutinterval:30];     // fetch json response     nsdata *urldata;     nsurlresponse *response;     nserror *error;      // make synchronous request     urldata = [nsurlconnection sendsynchronousrequest:urlrequest                                     returningresponse:&response                                                 error:&error];      // construct string around data response     return [[nsstring alloc] initwithdata:urldata encoding:nsutf8stringencoding]; }  - (id) objectwithurl:(nsurl *)url {      sbjsonparser *jsonparser = [[sbjsonparser new] autorelease];     nsstring *jsonstring = [self stringwithurl:url];      // parse json object     return [jsonparser objectwithstring:jsonstring error:null];  }  - (void) downloadjsonfeed  {      //set query     nsstring *lat  = [nsstring stringwithformat:@"%f", ad.locationmanager.location.coordinate.latitude];      nsstring *lon = [nsstring stringwithformat:@"%f", ad.locationmanager.location.coordinate.longitude];     nsstring *postvalues = [nsstring stringwithformat:@"https://api.foursquare.com/v2/venues/search?ll=%@,%@&client_id=%@&client_secret=%@&radius=4828&v=20120601",lat, lon, @"5en0wtzzxnlz3ongvybjfvpnpack21b0nws4c2r02mrfjogg", @"ehnqmqzzwrj4x51dbqnwenp0d0yhg3wfvwj24vjhaoz"];       //get server response     id response = [self objectwithurl:[nsurl urlwithstring:postvalues]];     nsdictionary *location = [response objectforkey:@"location"];      //array json data     nsmutablearray *jsondata = [[nsmutablearray alloc] init];       (nsdictionary *dict in location)     {         bathroom *bathroom = [[[bathroom alloc] init] autorelease];         bathroom.name = [dict objectforkey:@"name"];         bathroom.street = [dict objectforkey:@"address"];         bathroom.city = [dict objectforkey:@"city"];         bathroom.state = [dict objectforkey:@"state"];         bathroom.postal = [dict objectforkey:@"postalcode"];                 bathroom.country = [dict objectforkey:@"country"];                 [jsondata addobject:bathroom];     }       //release dictionary     //[dictionary release];       //now sort array distance     nssortdescriptor *sortdescriptor;     sortdescriptor = [[[nssortdescriptor alloc] initwithkey:@"name"                                                  ascending:yes] autorelease];     nsarray *sortdescriptors = [nsarray arraywithobject:sortdescriptor];     nsarray *sortedarray;     sortedarray = [jsondata sortedarrayusingdescriptors:sortdescriptors];     //dataarray = [[nsmutablearray alloc] init];      //add objects data array     [dataarray addobjectsfromarray:sortedarray];       //release json data     [jsondata release];  }     

the following section of code problem lies:

//get server response id response = [self objectwithurl:[nsurl urlwithstring:postvalues]]; nsdictionary *location = [response objectforkey:@"location"];  //array json data nsmutablearray *jsondata = [[nsmutablearray alloc] init];   (nsdictionary *dict in location) {     bathroom *bathroom = [[[bathroom alloc] init] autorelease];     bathroom.name = [dict objectforkey:@"name"];     bathroom.street = [dict objectforkey:@"address"];     bathroom.city = [dict objectforkey:@"city"];     bathroom.state = [dict objectforkey:@"state"];     bathroom.postal = [dict objectforkey:@"postalcode"];             bathroom.country = [dict objectforkey:@"country"];             [jsondata addobject:bathroom]; }  

try updating following:

//get server response id response = [self objectwithurl:[nsurl urlwithstring:postvalues]]; nsarray *venues = [[response objectforkey:@"response"] objectforkey:@"venues"];  //array json data nsmutablearray *jsondata = [[nsmutablearray alloc] init];   (nsdictionary *dict in venues) {     bathroom *bathroom = [[[bathroom alloc] init] autorelease];     nsdictionary *location = [dict objectforkey:@"location"];     bathroom.name = [location objectforkey:@"name"];     bathroom.street = [location objectforkey:@"address"];     bathroom.city = [location objectforkey:@"city"];     bathroom.state = [location objectforkey:@"state"];     bathroom.postal = [location objectforkey:@"postalcode"];             bathroom.country = [location objectforkey:@"country"];             [jsondata addobject:bathroom]; }