C# ASP.NET Core (5) - Browse - Upload an Image

Code
[HttpPost]

        [ValidateAntiForgeryToken]

        public async Task<IActionResult> UploadPicture(IFormFile upload, int QuestId, int CategoryId)

        {

            try

            {

                string fileToUpload = string.Empty;

                string filename = string.Empty;

                Team team = _context.Teams.Include(x => x.TeamMembers).FirstOrDefault(x => x.TeamMembers.Any(y => y.Id == User.GetUserId()));



                if (!_context.QuestsTeamsCompleted.Any(x => x.QuestId == QuestId && x.Team.Id == team.Id))

                {

                    if (upload.Length > 0)

                    {

                        filename = ContentDispositionHeaderValue.Parse(upload.ContentDisposition).FileName.Trim('"');

                        await upload.SaveAsAsync(Path.Combine("uploadedImages", filename));

                        fileToUpload = Path.Combine("uploadedImages", filename);

                    }



                    if (fileToUpload != string.Empty)

                    {

                        using (var client = new AmazonS3Client(AccessKey, SecretAccessKey, Amazon.RegionEndpoint.USEast1))

                        {



                            PutObjectRequest request = new PutObjectRequest()

                            {

                                BucketName = "survivorquest",

                                Key = team.Id + filename,

                                FilePath = fileToUpload,

                                CannedACL = S3CannedACL.PublicReadWrite

                            };

                            PutObjectResponse response = await client.PutObjectAsync(request);



                            TeamCompleted teamCompleted = new TeamCompleted

                            {

                                PictureOrVideoLink = BaseUrl + team.Id + filename,

                                QuestId = QuestId,

                                VideoOrPicture = "p",

                                Team = team

                            };



                            team.Points += _context.Quests.FirstOrDefault(x => x.Id == QuestId).Points;

                            _context.QuestsTeamsCompleted.Add(teamCompleted);



                            await _context.SaveChangesAsync();

                        }



                        System.IO.File.Delete(fileToUpload);

                    }

                }

                return RedirectToAction("Detail", "Categories", new { id = CategoryId });

            }

            catch (Exception e)

            {

                return RedirectToAction("Detail", "Categories", new { id = CategoryId });

            }

        }