public async Task <IActionResult> CreatePoster(PosterForRegisterDto posterForRegisterDto)
        {
            posterForRegisterDto.Title = posterForRegisterDto.Title;
            var posterToCreate = new Poster
            {
                Title       = posterForRegisterDto.Title,
                Description = posterForRegisterDto.Description,
                Size        = posterForRegisterDto.Size,
                Price       = posterForRegisterDto.Price
            };
            var createdPoster = await _repo.CreatePoster(posterToCreate);

            // _context.Add(posterToCreate);
            // await _context.SaveChangesAsync();
            return(StatusCode(201));
        }