public IActionResult AddTicket([FromBody] List <TicketForm> form)
        {
            var           error   = new Error();
            List <Ticket> tickets = new List <Ticket>();

            foreach (var ticket in form)
            {
                tickets.Add(ticket.MapToCore());
            }

            _ticketManager.AddTickets(tickets, ref error);
            if (error.ErrorCode != ErrorCode.OKAY)
            {
                return(BadRequest(error.Message));
            }

            return(Ok());
        }