addorUpdateRecords.m

// add or update many records at once

[client addOrUpdateRecords:records // an array of records
                   inLayer:@"com.simplegeo.example"
                  callback:[SGCallback callbackWithSuccessBlock:
                            ^(id response) {
                                // additions/updates confirmed
                            } failureBlock:^(NSError *error) {
                                // additions/updates failed
                            }]];