private ResponseEntity<?> deleteRegionKeys(String region, String[] keys) {
    securityService.authorize("WRITE", region, keys);
    logger.debug("Delete data for keys {} on region {}", ArrayUtils.toString((Object[]) keys),
        region);
    deleteValues(region, keys);
    return new ResponseEntity<>(HttpStatus.OK);
  }
Delete data for one or more keys from a region

@param region gemfire region
@return JSON document containing result
geode-web-api/src/main/java/org/apache/geode/rest/internal/web/controllers/CommonCrudController.java