How to parse a json with dynamic array'keys? - json

Question

I need to parse a json with dynamic arrays keys like this :
[{ key1:{
title: .....,
img: .....,
}, key2:{
title: .....,
img: .....,
}, }]
I know how to parse a json like this:
[
{title: .....,nbLike: ...},
{title: ...., nbLike: ...}
]
but i didn't find anything about parsing json with a dynamic key like this.
I tried this but it doesnt work.
class Event {
final String title;
final int nbLike;
Event({this.title, this.nbLike});
factory Event.fromJson(Map<String, dynamic> json) {
return Event(
title: json['title'] as String,
nbLike: json['nbLike'] as int,
);
}
}
Future<List<Event>> fetchPosts(http.Client client) async {
final response = '[{"2019-01-15":{"title":"Hey","nbLike":1}, "2019-01-
16":{"title":"Hey2","nbLike":2}}]';
return compute(parsePosts, response);
}
List<Event> parsePosts(String responseBody) {
List<Event> events = new List<Event>();
List jsonParsed = json.decode(responseBody.toString());
for (int i = 0; i < jsonParsed.length; i++) {
print('jsonParsed1 ${jsonParsed.length}');
print('jsonParsed ${jsonParsed[i]}');
events.add(new Event.fromJson(jsonParsed[i]));
}
return events;
}
I receive json from API with a key and i want to transform it to this
[{title: .....,nbLike: ...},{title: ...., nbLike: ...}]
to create a 'Event' list and display it in a card list.

Answer 1

It is the complete code if someone need it, Thanks KURRU HEM.
Map<String, dynamic> jsonParsed = {"2019-01-15":{"title":"Hey","nbLike":1}, "2019-01-16":{"title":"Hey2","nbLike":2}};
print(jsonParsed);
List<Event> _events = [];
List _dates = [];
jsonParsed.keys.forEach((String key){
_dates.add(key);
});
print(_dates);
for(int i=0; i<_dates.length; i++){
print(jsonParsed[_dates[i]]['title']);
print(jsonParsed[_dates[i]]['nbLike']);
final Event event = Event(
title: jsonParsed[_dates[i]]['title'],
nbLike: jsonParsed[_dates[i]]['nbLike'],
);
_events.add(event);
}
print('EVENTS --------------> $_events');
class Event {
final String title;
final int nbLike;
Event({this.title, this.nbLike});
factory Event.fromJson(Map<String, dynamic> json) {
return Event(
title: json['title'] as String,
nbLike: json['nbLike'] as int,
);
}
}

Answer 2

Try this.
List _events = [];
List _dates = [];
jsonParsed.keys.forEach((String key){
_dates.add(key);
});
for(int i=0; i<_dates.length; i++){
jsonParsed[_date[i]].forEach((event){
final Event event = Event(
title: jsonParsed['title'],
nbLike: jsonParsed['nbLike'],
);
_events.add(event);
});
}