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import 'dart:async';

const data = "I'm expansive data";

// Future with String data is being returned.
// This function returns the instance of
// Future and not the actual data.

Future<String> makeDataCall() async {
  var data = await getData();
  throw Exception("Error occurred in making data call");
}

String getData() {
  return data;
}

void main() {
  var theFurture = makeDataCall();
  theFurture.then((value) {
    print(value);
  }).catchError((error){
    print(error);
  });
}