//// POST: api/Authors
        //[ResponseType(typeof(Author))]
        public IHttpActionResult PostAuthor(AuthorDto author)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            _authorsService.Add(author);

            return(CreatedAtRoute("DefaultApi", new { id = author.Id }, author));
        }