Dart - convert Webfeed to Json - flutter

Question

I am new to dart and flutter. I am learning and trying to make an app that reads Atomic feed from the website. I am using webfeed package to accomplish this.
Here is the code I have so far -
Future<NewsModel> fetchLatestNews() async {
final response = await client.get("https://www.example.com/blog-news-list/atom/");
if(response.statusCode == 200){
var atomFeed = new AtomFeed.parse(response.body);
Map map = new Map();
for (int i = 0; i < atomFeed.items.length; i++) {
map[i]["title"] = atomFeed.items[i].title;
map[i]["link"] = atomFeed.items[i].id;
map[i]["published"] = atomFeed.items[i].published;
map[i]["summary"] = Helpers.removeAllHtmlTags(atomFeed.items[i].summary);
}
return NewsModel.fromJson(json.decode(map.toString()));
}else {
throw Exception("Failed to load post.");
}
}
And here is my news_model.dart
class NewsModel{
List<_Result> _results = [];
NewsModel.fromJson(Map<String, dynamic> parsedJson) {
List<_Result> temp = [];
for (int i = 0; i < parsedJson.length; i++) {
_Result result = _Result(parsedJson[i]);
temp.add(result);
}
_results = temp;
}
List<_Result> get results => _results;
}
class _Result {
String _title;
String _link;
String _published;
String _summary;
List<String> _categories = [];
_Result(result) {
_title = result['title'];
_link = result['link'];
_published = result['published'];
_summary = result['summary'];
for (int i = 0; i < result['category'].length; i++) {
_categories.add(result['category'][i]);
}
}
String get published => _published;
String get title => _title;
String get link => _link;
String get summary => _summary;
List<String> get categories => _categories;
}
These code didn't work. I know I am doing it wrong, but my problem will be solved if either of the following question is answered -
how could I convert AtomFeed to Json?
Or change in model that could reflect the feed without converting it to Json.
Any help will be highly appreciated

Answer 1

With this you already have an object that could reflect the feed:
AtomFeed atomFeed = AtomFeed.parse(response.body);
AtomFeed