Flutter: Parsing JSON array - flutter

Question

I'm trying out http requests from flutter to my backend.
My JSON is like this:
"_hits": {
"Do8HpM3w0mh99SF": {
"docid": "Do8HpM3w0mh99SF"
},
"HNLvkccTCIlmrcQ": {
"docid": "HNLvkccTCIlmrcQ"
},
"QNSInDU2BJMF5SD": {
"docid": "QNSInDU2BJMF5SD"
},
"UVDfRueZXIVCssk": {
"docid": "UVDfRueZXIVCssk"
},
"Y9bNKklTr2Sg6Ai": {
"docid": "Y9bNKklTr2Sg6Ai"
},
"kJgwwMbgF6PBwmMJSiKC": {
"docid": "kJgwwMbgF6PBwmMJSiKC"
},
"py5MbGK11SsbXQ1": {
"docid": "py5MbGK11SsbXQ1"
}
}
My code to request:
Future<SearchResults> fetchJson() async {
final response =
await http.get('MyWebsite.com');
if (response.statusCode == 200) {
// If the server did return a 200 OK response,
// then parse the JSON.
// print(response.body);
return SearchResults.fromJson(json.decode(response.body));
} else {
// If the server did not return a 200 OK response,
// then throw an exception.
throw Exception('Failed to load request');
}
}
The Search Results Class:
class SearchResults {
final String hits;
SearchResults({this.hits});
factory SearchResults.fromJson(Map<String, dynamic> json) {
return SearchResults(
hits: json['_hits'],
);
}
}
What I'm trying to achieve:
Print the value of docid under the array of _hits
Coming From iOS Swift, this is very new to me, any input is greatly appreciated.

Answer 1

Your SearchResuts object is wrong as _hits is not a String but a Map<String, dynamic> to do it simple :
class SearchResults {
Map<String, dynamic> hHits;
SearchResults({this.hHits});
SearchResults.fromJson(Map<String, dynamic> json) {
hHits = json['_hits'];
}
}
From here, you can iterate on your docids by getting a list of _hits elements like this :
print(searchResults.hHits.values.toList());
will print
[{docid: Do8HpM3w0mh99SF}, {docid: HNLvkccTCIlmrcQ}, {docid: QNSInDU2BJMF5SD}, {docid: UVDfRueZXIVCssk}, {docid: Y9bNKklTr2Sg6Ai}, {docid: kJgwwMbgF6PBwmMJSiKC}, {docid: py5MbGK11SsbXQ1}]