public async Task <IActionResult> AddVariousProductCollection([FromHeader(Name = "Authorization")] string authorization, [FromRoute] string reference,
                                                                      [FromBody] IEnumerable <ProductCollectionDto> enumerableProductCollectionDto)
        {
            if (!_userValidationService.CheckAuthorizationToken(authorization))
            {
                return(Unauthorized());
            }
            if (!(await _userValidationService.ValidateContentManager(authorization.Split(" ")[1])))
            {
                return(Unauthorized());
            }

            var userRef = await _userValidationService.GetUserRef(authorization.Split(" ")[1]);

            object[] array = new object[2];
            array[0] = reference;
            array[1] = EnumerableUtils.convert(enumerableProductCollectionDto);
            _logger.logInformation(userRef, LoggingEvents.PostItem, "Adding Product Collections By Reference: {0} -- {1}", array);
            ValidationOutput validationOutput = _catalogService.AddVariousProductCollection(reference, enumerableProductCollectionDto);

            if (validationOutput.HasErrors())
            {
                if (validationOutput is ValidationOutputBadRequest)
                {
                    _logger.logCritical(userRef, LoggingEvents.PostBadRequest, "Adding Product Collections Failed: {0}", ((ValidationOutputBadRequest)validationOutput).ToString());
                    return(BadRequest(validationOutput.FoundErrors));
                }

                if (validationOutput is ValidationOutputNotFound)
                {
                    _logger.logCritical(userRef, LoggingEvents.PostNotFound, "Adding Product Collections Failed: {0}", ((ValidationOutputNotFound)validationOutput).ToString());
                    return(NotFound(validationOutput.FoundErrors));
                }

                _logger.logCritical(userRef, LoggingEvents.PostInternalError, "Type of validation output not recognized. Please contact your software provider.");
                return(BadRequest("Type of validation output not recognized. Please contact your software provider."));
            }
            else
            {
                _logger.logInformation(userRef, LoggingEvents.PostOk, "Adding Product Collections to Catalog Succeeded: {0}", array[1]);
                return(Ok(validationOutput.DesiredReturn));
            }
        }