public IActionResult GetArticle([FromRoute] int id)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            var article = _articlesRepository.Find(id);

            if (article == null)
            {
                return(NotFound());
            }

            return(Ok(article));
        }
        public async Task <IEnumerable <ArticleDto> > Handle(GetAllArticles request, CancellationToken cancellationToken)
        {
            var articles = await _articlesRepository.Find();

            return(articles.AsDto());
        }