public ActionResult StoreFile(CreateResearchFileRequest req)
        {
            string path = Path.Combine(_env.WebRootPath, "files");
            IList <ResearchFile> researchFiles = new List <ResearchFile>();
            Project project = _context.Project.Where(proj => proj.Uid == req.uid).First <Project>();

            if (req.Files != null)
            {
                foreach (IFormFile file in req.Files)
                {
                    string     fileName   = Guid.NewGuid().ToString() + Path.GetExtension(file.FileName);
                    string     filepath   = Path.Combine(path, fileName);
                    FileStream fileStream = new FileStream(filepath, FileMode.Create);
                    file.CopyTo(fileStream);
                    fileStream.Close();
                    AzureFileService fileService = new AzureFileService(this._appSettings);
                    fileService.storeFile("files", fileName, filepath);
                    ResearchFile researchFile = new ResearchFile();
                    researchFile.FileName  = fileName;
                    researchFile.ProjectId = project.Id;
                    researchFiles.Add(researchFile);
                    _context.ResearchFile.Add(researchFile);
                }
            }

            _context.SaveChanges();
            return(Ok(researchFiles));
        }
        public ActionResult DeleteFile(DeleteFileRequest req)
        {
            AzureFileService fileService = new AzureFileService(this._appSettings);
            var result = fileService.DeleteFile("files", req.FileName);

            if (result)
            {
                ResearchFile research = _context.ResearchFile.Where(
                    researchFile => researchFile.ProjectId == req.ProjectId &&
                    researchFile.FileName == req.FileName).FirstOrDefault();
                _context.ResearchFile.Remove(research);

                IList <ResearchFile> researchFileList = _context.ResearchFile.Where(
                    researchFile => researchFile.ProjectId == req.ProjectId).ToList();
                return(Ok(researchFileList));
            }
            return(NotFound());
        }