public async Task <IActionResult> CreateShortenedUrl([FromBody] CreateShortenedUrlRequest request)
{
var siteUrl = $"{this.Request.Scheme}://{this.Request.Host}{this.Request.PathBase}";
var shortenedKey = await _urlShortenerService.CreateShortenedUrl(request.OriginalUrl);
var shortenedUrl = string.Concat(siteUrl, "/", shortenedKey);
return(new JsonResult(new CreateShortenedUrlResponse {
ShortenedUrl = shortenedUrl
}));
}