how to parse the answer (array) you get in the API (GET) query in flutter

Question

I'm querying get into flutter, and I'm getting back array (one object in the array). I want to parse this answer and assign the data from the array object to the variable. But I can't do it. Here is my request:

  Future<Null>   example(
      String? task_id
      ) async {

    HttpClient client = new HttpClient();
    client.badCertificateCallback =
    ((X509Certificate cert, String host, int port) => true);

    final String url = urlVar "?id="+  '$task_id';

    final request = await client
        .getUrl(Uri.parse(url))
        .timeout(Duration(seconds: 5));


    HttpClientResponse response = await request.close();

    var responseBody = await response.transform(utf8.decoder).join();

    Map jsonResponse = json.decode(responseBody);

    print(jsonResponse);


  }

My answer json

[
  {
    "id": "d290111e-6c54-4b01-90e6-d701748f0851",
    "name": "Parse example",
   }
]

I want to parse this answer and assign it to my variables. I did it like when the answer was in the object, I did it like this. But with array not, I will be grateful for help)

    var responseBody = await response.transform(utf8.decoder).join();

    Map jsonResponse = json.decode(responseBody);

    print(jsonResponse);
    if (response.statusCode == 200) {
      global.taskId = jsonResponse['id'] ;
      global.taskName = jsonResponse['name'];

    }

Try to re-check what json.decode result, is it `Map` or `List` — cahyo, Nov 18 '21 at 16:40
@cahyo my json [ { "id": "d290111e-6c54-4b01-90e6-d701748f0851", "name": "Parse example", } ] — Andrii Havrylyak, Nov 18 '21 at 16:56
This may have already been answered here https://stackoverflow.com/questions/53001839/how-to-convert-response-json-to-object-in-flutter — Curt Eckhart, Nov 18 '21 at 17:03

score 0 · Answer 1 · answered Nov 19 '21 at 05:48

0

Try this

if (response.statusCode == 200) {
  global.taskId = jsonResponse[0]['id'] ;
  global.taskName = jsonResponse[0]['name'];

}

answered Nov 19 '21 at 05:48

Ananda Pramono

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how to parse the answer (array) you get in the API (GET) query in flutter

1 Answers1