getValueFromEnv method

Future<String?> getValueFromEnv(
  1. String key
)

Implementation

Future<String?> getValueFromEnv(String key) async {
  await _checkFileExistOrCreate();
  String fileContent = await _file!.readAsString();
  RegExp regExp = RegExp('$key=.*');
  var matches = regExp.allMatches(fileContent).toList();

  for (var item in matches) {
    return fileContent
        .substring(item.start, item.end)
        .replaceAll("$key=", "");
  }
  return null;
}