public async Task <ActionResult <IEnumerable <BrandViewModel> > > GetAllAsync(int pageNumber = 1, int pageSize = 100, string brand = null) { _logger.LogDebug("GetAll {0} {1} {2}", pageNumber, pageSize, brand); InputValidation(pageNumber, pageSize); if (!ModelState.IsValid) { return(BadRequest(ModelState)); } var result = await _repository.GetAllBrandsAsync(pageNumber, pageSize, brand); return(Ok(result?.Select((b) => _mapper.Map <BrandViewModel>(b)))); }