Your Second Flutter App

Nov 30 2021 · Dart 2.13, Flutter 2.2.3, Visual Studio Code

Part 1: Parse Network Data

04. Use a Model & Repository

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Previous episode: 03. Understand Futures Next episode: 05. Make a Network Call

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As you progress in your career in mobile development, you’ll gain an appreciation for the architecture of your app project. Architecture in this context means the structure of your codebase, how different components in your code are connected and depend on one another.

class Course {
  final String courseId;
  final String name;
  final String description;

  Course(
    this.courseId,
    this.name,
    this.description,
  );
}

abstract class Repository {
  Future<List<Course>> getCourses(int domainFilter);
}

import '../model/course.dart';

import 'repostiory.dart';

class CourseRepository implements Repository {
}

  String dataURL =
      'https://api.raywenderlich.com/api/contents?filter[content_types][]=collection';

  @override
  Future<List<Course>> getCourses(int domainFilter) async {
    final courses = <Course>[];

    return courses;
  }

import '../model/course.dart';

import '../constants.dart';

    var url = dataURL;

    if (domainFilter != Constants.allFilter) {
      url += ';&filter[domain_ids][]=$domainFilter';
    }