anchor.diff:  		["acct", TimeStamp, Serial] = string:tokens(Id, [$-]),
   		TS = list_to_integer(TimeStamp),
   		N = list_to_integer(Serial),
  -		Events = ocs_log:auth_query(TS, TS, '_', '_', '_', '_'),
   		case query_acct(TS, TS, '_', '_', '_', MaxItems) of
   			{error, _} ->
   				{error, 500};
  
positive.code: 	catch
  		_:_Reason ->
  			{error, 404}
  	end;
  get_usage(Id, [] = _Query) ->
  	{ok, MaxItems} = application:get_env(ocs, rest_page_size),
  	{ok, Directory} = application:get_env(ocs, ipdr_log_dir),
  
negative.code: 		["auth", TimeStamp, Serial] = string:tokens(Id, [$-]),
  		TS = list_to_integer(TimeStamp),
  		N = list_to_integer(Serial),
  		case query_auth(TS, TS, '_', '_', '_', '_', MaxItems) of
  			{error, _} ->
  				{error, 500};
  