Calling scopedModel from initState in flutter

Question

I have a scopedModel class where I fetch data into it. The thing is that I'm not being able to render this data from InitState method using my scoped model where I have all my api requests. The method is being called but the inside callings are not, so my initial state of the page is not properly shown.

void initState() {
    print("Check initState");
    super.initState();
    ScopedModelDescendant<MainModel>(
        builder: (BuildContext context, Widget child, MainModel model) {
      print("Get into the scoped model");
      model.fecthCars();
      model.fecthCities();
      model.fecthBuys(model.getUserDto.token);
      print(model.getBuys().length);
      return;
    });
  }

None of the fetches(Api requests) get called. And the scopedModel returns a widget. I need this to be updated the first time I get into the manager and that's it. No need to call it again. Is this possible? or should I hardcode my api requests in each file I need?

UPDATE

If you have your scoped model class set up already you can set a Future like this inside of it

mixin MyModel on Model {
    Future<TypeToReturn> methodName(String param) async {
    Uri uri = new Uri.http('serverUrl', 'api/call');

    return await http.get(uri).then((http.Response response) {
      final List<dynamic> myResponse= json.decode(response.body);

      return myResponse;
    }).catchError((error) {
      print(error);
    });
  }
}

Aftermards you can set up your FutureBuilder

Widget _buildBody(BuildContext context, MainModel model) {

    return FutureBuilder(
      future:  model.methodName(someString), //This is the method name above
      builder: (context, AsyncSnapshot<TypeToReturn> snapshot) { //type u return
        if (!snapshot.hasData) {
          return Center(
            child: CircularProgressIndicator(),
          );
        } else {
          if (snapshot.data.length == 0)
            return Center(
              child: Text(
                "No Data Found",
                textAlign: TextAlign.center,
                style: TextStyle(
                  fontSize: 16.0,
                ),
              ),
            );

          return (create your own widget with the data inside the snapshot)
        }
      },
    );
  }

Hope this clarify things a little bit more on how I did it.

Answer 1

I stumbled upon the following solution:

In the State Class of my StatefulWidget I do:

@override
void initState() {
  super.initState();
  // and here...
  MyModel model = ScopedModel.of(context);
  // now I can do with the model whatever I need to do:
  Text someVar = model.initialText;
  model.getValuesFromSomewhere();
  // and so on
}

This, in my opinion, is the easiest way of solving the problem as stated by the original Question.