gistfile1.m

    if([attendanceIdentifierData length] > 0) {
        NSString *activityTypeID = [[NSUserDefaults standardUserDefaults]
                                    valueForKey:@"activity_type_id"];
        NSString *deviceUUID = [[NSUserDefaults standardUserDefaults]
                                valueForKey:@"application_uuid"];
        NSDictionary* params = [NSDictionary dictionaryWithObjectsAndKeys:
                                attendanceIdentifierData, @"attendance_identifier", nil];
        NSString *authenticationToken = [[NSUserDefaults standardUserDefaults]
                                         valueForKey:@"authentication_token"];
        NSString *postPath = [NSString stringWithFormat:@"/api/v2/json/%@/activity_types/%@/activities/create_or_update/%@", authenticationToken, activityTypeID, deviceUUID];
        
        [[RKObjectManager sharedManager].HTTPClient postPath:postPath
                                                  parameters:params
                                                     success:^(AFHTTPRequestOperation *operation, id JSON)
         {
             [TestFlight passCheckpoint:@"AUTHORIZED_ENTRY"];
             NSString *activityStatus = [JSON objectForKey:@"activity_status"];
             NSLog(@"activityStatus: %@", activityStatus);
             
             [self.activityInformationBackgroundView setHidden:NO];
             NSString *photoURLString = [NSString stringWithFormat:@"https://domain.com/api/v2/jpg/%@/photos/lsuid/%@?style=medium",
                                         authenticationToken,
                                         [[JSON valueForKey:@"user"]
                                                valueForKey:@"photoHash"]];
             [self.userPhotoImage setImageWithURL:[NSURL URLWithString:photoURLString]
                                 placeholderImage:[UIImage imageNamed:@"placeholder.png"]];
             
             int sound[]={2730,150,0,30};
             [linea playSound:100 beepData:sound length:sizeof(sound) error:nil];
         } failure:^(AFHTTPRequestOperation *operation, NSError *error)
         {
             if ([operation.responseString length] > 0) {
                 NSDictionary *parsedResponse = [NSJSONSerialization JSONObjectWithData:operation.responseData
                                                                                options:0
                                                                                  error:nil];
                 [TestFlight passCheckpoint:@"FAILED_TO_AUTHORIZE_ENTRY"];
                 TTShowAlertWithString([parsedResponse valueForKey:@"error"]);
             } else {
                 TTShowAlertWithString([error localizedDescription]);
             }
             int sound[]={2730,150,0,30,2730,2730};
             [linea playSound:100 beepData:sound length:sizeof(sound) error:nil];
         }];
        
        [self.attendanceIdentifierField setText:nil];
        [TestFlight passCheckpoint:@"SUBMITTED_ATTENDANCE_DATA"];
    }