@RequestMapping(value = "/deleteRow", method = RequestMethod.POST)
 public ResponseEntity<Boolean> deleteRow(
     @RequestParam(value = "username") String username,
     @RequestParam(value = "hash") String hash,
     @RequestParam(value = "target") String target,
     HttpServletRequest request) {
   logger.info("Requested deletion of row with hash " + hash + " and target " + target);
   boolean accepted = false;
   if (username != null
       && !username.equals("")
       && hash != null
       && !hash.equals("")
       && target != null
       && !target.equals("")) {
     shortURLRepositoryExtended.deleteByHash(username, hash, target);
     accepted = true;
   }
   if (accepted) {
     return new ResponseEntity<>(accepted, HttpStatus.ACCEPTED);
   } else {
     return new ResponseEntity<>(HttpStatus.BAD_REQUEST);
   }
 }