postRequest<L extends Link> method

Future<RequestResult<L?>> postRequest<L extends Link>(LinkNotifier<L>? notifier, { GlobalKey<ScaffoldState>? globalKey, dynamic errorCallback()?, dynamic readyLock = true, int timeout = 7, })

Implementation

Future<RequestResult<L?>> postRequest<L extends Link>(
    LinkNotifier<L>? notifier,
    {GlobalKey<ScaffoldState>? globalKey,
    Function()? errorCallback,
    readyLock = true,
    int timeout = 7}) async {
  if (readyLock) {
    if (notifier!.state != LinkState.ready)
      return RequestResult(false, notifier.link);
    notifier.state = LinkState.progress;
  }
  http.Response response;
  try {
    response = await http
        .post(Uri.parse(serverUrl),
            body: jsonEncode(notifier!.link!.getSendJSON()))
        .timeout(Duration(seconds: timeout));
  } on Exception catch (e) {
    Debug.debugging(
        "HttpPost", "http request timeout $e, by ${notifier!.link}");
    _showNetErrSnackBar(globalKey);
    if (errorCallback != null) errorCallback();
    notifier.state = LinkState.ready;
    return RequestResult(false, notifier.link);
  }

  if (response.statusCode == 200) {
    try {
      var json = jsonDecode(response.body);
      notifier.receive(json);
      return RequestResult(true, notifier.link,
          result: json[BKConstants.BK_WORKING_RESULT]);
    } catch (e, stack) {
      String errorMessage =
          "HttpRequest receive error, error message:$e, response body:${response.body}"
          " link${notifier.link}";
      Debug.debugging("HttpRequest", errorMessage);
      Debug.debugging("HttpRequest", stack.toString());
      _showNetErrSnackBar(globalKey);
    }
  } else {
    _showNetErrSnackBar(globalKey);
    notifier.state = LinkState.ready;
    Debug.debugging("HttpPost", "network error");
  }
  return RequestResult(false, notifier.link);
}