fromJson static method

AnalyzeQuery? fromJson(dynamic value)

Returns a new AnalyzeQuery instance and imports its values from value if it's a Map, null otherwise.

Implementation

// ignore: prefer_constructors_over_static_methods
static AnalyzeQuery? fromJson(dynamic value) {
  if (value is Map) {
    final json = value.cast<String, dynamic>();

    // Ensure that the map contains the required keys.
    // Note 1: the values aren't checked for validity beyond being non-null.
    // Note 2: this code is stripped in release mode!
    assert(() {
      requiredKeys.forEach((key) {
        assert(json.containsKey(key), 'Required key "AnalyzeQuery[$key]" is missing from JSON.');
        assert(json[key] != null, 'Required key "AnalyzeQuery[$key]" has a null value in JSON.');
      });
      return true;
    }());

    return AnalyzeQuery(
      alpha: num.parse('${json[r'alpha']}'),
      days: mapValueOfType<int>(json, r'days'),
      end: mapValueOfType<String>(json, r'end'),
      id: mapValueOfType<String>(json, r'id'),
      start: mapValueOfType<String>(json, r'start'),
    );
  }
  return null;
}