private async Task CopyFile(String json)
        {
            JObject   obj            = JObject.Parse(json);
            ImageFile downloadedFile = await DownloadFile(obj["imgId"].ToString());

            downloadedFile._id = obj["toUser"].ToString();
            ImageFileNoRev fileNoRev = new ImageFileNoRev(downloadedFile);
            var            response  = await CouchDBConnect.PostToDB(fileNoRev, "files");

            return;
        }
        public async Task <String> UploadFile([FromBody] ImageFile file)
        {
            if (VerifyTheToken(file._id))
            {
                ImageFileNoRev fileNoRev = new ImageFileNoRev(file);
                var            response  = await CouchDBConnect.PostToDB(fileNoRev, "files");

                Console.WriteLine(response);

                return("Upload Succeeded");
            }
            else
            {
                return("Please login first!");
            }
        }