public IActionResult AddDiscoverySource([FromBody] DiscoverySourceDto discoverySourceDto)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            var disoverySource = _mapper.Map <DiscoverySource>(discoverySourceDto);

            _catalogRepository.AddDiscoverySource(disoverySource);
            _catalogRepository.Save();

            return(Ok(disoverySource));
        }