ios - How to send push notification to purticular group members using parse? -

i developing social messaging app using parse backend. need send push notification group members when texted in group.

my code :

pfquery* getmembers = [pfquery querywithclassname:@"group"]; [getmembers wherekey:@"objectid" equalto:groupid]; [getmembers includekey:pf_recent_user]; [getmembers findobjectsinbackgroundwithblock:^(nsarray *objects, nserror *error) {     if (!error) {         nsarray *ar = [[nsarray alloc]init];         ar=[[objects objectatindex:0]objectforkey:@"members"];         nslog(@"members %@",ar);         pfquery *queryinstallation = [pfinstallation query];         [queryinstallation wherekey:pf_installation_user matcheskey:pf_recent_user inquery:getmembers];          pfpush *push = [[pfpush alloc] init];         [push setquery:queryinstallation];         //[push setmessage:text];         nsdictionary *data = [nsdictionary dictionarywithobjectsandkeys:                               text, @"alert",                               @"ursound.caf", @"sound",                               @"increment", @"badge",                               // @"optionally type set", @"type",                               nil];         [push setdata:data];         [push sendpushinbackgroundwithblock:^(bool succeeded, nserror *error)          {              if (error != nil)              {                  nslog(@"sendpushnotification send error.");              }          }];         } }]; 

kindly guide me correct mistake..

you can send push notification gruop members creating channel , subscribe user channel . can send push notification particular channel.

visit https://parse.com/docs/ios/guide#push-notifications more creating channel , send notification using channel.