Save JSON when HTTP POST (edit)

Debug (NET) - @manhng

var uploadsProjectsFolder = Path.Combine(_hostingEnvironment.WebRootPath, @"Uploads\Projects\");

if (!Directory.Exists(uploadsProjectsFolder)) Directory.CreateDirectory(uploadsProjectsFolder);

System.IO.File.WriteAllText($"{Path.Combine(uploadsProjectsFolder, projectId.ToSafeString())}.txt", Newtonsoft.Json.JsonConvert.SerializeObject(model));