func createFinalResult(ctx context.Context, w http.ResponseWriter, result model.KeyedResult) (int, error) { var challenge model.Challenge if err := datastore.Get(ctx, result.Challenge, &challenge); err != nil { return http.StatusInternalServerError, nil } result.Finished = time.Now() for i, taskKey := range challenge.Tasks { key, err := getLatestSubmissionKey(ctx, result.Key, taskKey) if err != nil { return http.StatusInternalServerError, err } result.FinalSubmissions[i] = key } _, err := result.Put(ctx, result.Key) if err != nil { return http.StatusInternalServerError, err } json.NewEncoder(w).Encode(result) go computeFinalScore(ctx, result, challenge) return http.StatusOK, nil }