public async Task <IHttpActionResult> AddLovedPresentationAsync(string idStudent, string idPresentation) { if (string.IsNullOrEmpty(idStudent) || !Guid.TryParse(idStudent, out var _) || string.IsNullOrEmpty(idPresentation) || !Guid.TryParse(idPresentation, out var _)) { return(BadRequest()); } var result = await _studentService.AddLovedPresentationAsync(idStudent, idPresentation); return(result.IsError ? BadRequest(result.Message) : (IHttpActionResult)Ok(result.IsSuccess)); }