fromJson static method

MmSlackAttachment? fromJson(dynamic value)

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

Implementation

// ignore: prefer_constructors_over_static_methods
static MmSlackAttachment? 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 "MmSlackAttachment[$key]" is missing from JSON.');
        assert(json[key] != null, 'Required key "MmSlackAttachment[$key]" has a null value in JSON.');
      });
      return true;
    }());

    return MmSlackAttachment(
      id: mapValueOfType<String>(json, r'Id'),
      fallback: mapValueOfType<String>(json, r'Fallback'),
      color: mapValueOfType<String>(json, r'Color'),
      pretext: mapValueOfType<String>(json, r'Pretext'),
      authorName: mapValueOfType<String>(json, r'AuthorName'),
      authorLink: mapValueOfType<String>(json, r'AuthorLink'),
      authorIcon: mapValueOfType<String>(json, r'AuthorIcon'),
      title: mapValueOfType<String>(json, r'Title'),
      titleLink: mapValueOfType<String>(json, r'TitleLink'),
      text: mapValueOfType<String>(json, r'Text'),
      fields: MmSlackAttachmentField.listFromJson(json[r'Fields']) ?? const [],
      imageURL: mapValueOfType<String>(json, r'ImageURL'),
      thumbURL: mapValueOfType<String>(json, r'ThumbURL'),
      footer: mapValueOfType<String>(json, r'Footer'),
      footerIcon: mapValueOfType<String>(json, r'FooterIcon'),
      timestamp: mapValueOfType<String>(json, r'Timestamp'),
    );
  }
  return null;
}