public async Task <IActionResult> ShortenLink([FromForm] string url)
        {
            var identity      = _Identifier.GetOrCreateIdentity(HttpContext);
            var shortenResult = await _LinksShortener.ShortenAsync(url);

            var linkToAdd = new LinkModel
            {
                OriginalUrl = url,
                ShortenId   = shortenResult,
                Identity    = identity
            };

            await _LinksRepository.AddLinkAsync(linkToAdd);

            var response = new AddLinkResponseModel
            {
                Identity = identity,
                Shorten  = $"{HttpContext.Request.GetBaseUrl()}/l/{shortenResult}",
                Original = url
            };

            return(Json(response));
        }