How to parse json using async / await keywords and Future in Dart / Flutter

main.dart

import 'dart:convert';

import 'package:http/http.dart';

main() async {
  List<Repository> repositories = await GithubService().flutterRespositoriesUsingAsyncAwait();
  repositories.forEach((repository) => print(repository));
}

main() {
  GithubService()
      .flutterRespositoriesUsingAsyncAwait()
      .then((repositories) => repositories.forEach((repository) => print(repository)));
}

class GithubService {
  final String _flutterGithubUrl = 'https://api.github.com/orgs/flutter/repos';

  Future<List<Repository>> flutterRespositoriesUsingAsyncAwait() async {
    Response response = await get(_flutterGithubUrl);
    List<dynamic> parsed = json.decode(response.body);
    return parsed.map((json) => Repository.fromJson(json)).toList();
  }

  Future<List<Repository>> flutterRespositoriesUsingFuture() {
    return get(_flutterGithubUrl)
        .then((response) => json.decode(response.body))
        .then((parsed) => parsed.map((json) => Repository.fromJson(json)).toList());
  }
}

class Repository {
  final int id;
  final String name;
  final String avatarUrl;
  final String htmlUrl;
  final int stars;

  Repository({
    this.id,
    this.name,
    this.avatarUrl,
    this.htmlUrl,
    this.stars,
  });

  factory Repository.fromJson(Map<String, dynamic> json) {
    return Repository(
      id: json['id'] as int,
      name: json['name'] as String,
      avatarUrl: json['owner']['avatar_url'] as String,
      htmlUrl: json['html_url'] as String,
      stars: json['stargazers_count'] as int,
    );
  }

  @override
  String toString() {
    return '$name has $stars stars. More info: $htmlUrl';
  }
}

same problems anyone?

Kamryy, what is the problem? thank you