callFunction method

Future<CloudBaseResponse> callFunction(String name, [ Map<String, dynamic>? params ])

Implementation

Future<CloudBaseResponse> callFunction(String name,
    [Map<String, dynamic>? params]) async {
  if (name.isEmpty) {
    throw new CloudBaseException(
        code: CloudBaseExceptionCode.EMPTY_PARAM,
        message: 'function name must not be empty');
  }

  Map<String, dynamic> callParams = {'function_name': name};

  if (params != null) {
    callParams['request_data'] = jsonEncode(params);
  }

  CloudBaseRequest cloudbaseRequest = CloudBaseRequest(_core);
  final CloudBaseResponse? res =
      await cloudbaseRequest.post(_action, callParams);

  if (res == null) {
    throw new CloudBaseException(
        code: CloudBaseExceptionCode.NULL_RESPONSE,
        message: "unknown error, res is null");
  }

  // 存在 code，说明返回值存在异常
  if (res.code != null) {
    throw new CloudBaseException(code: res.code, message: res.message);
  }

  // 尝试解析响应值
  String responseData = res.data['response_data'];

  try {
    dynamic data = jsonDecode(responseData);
    res.data = data;
    return res;
  } catch (e) {
    // 解析失败，返回原值
    return res;
  }
}