Search⌘ K
Home
Courses
The Complete Guide to Flutter

Solution: Crypto API

Explore solutions to the Crypto API challenge.

We'll cover the following...

Solutions

Great job on completing all the steps in the previous challenge! Feel free to compare your code solutions with the solutions below:

lib/utilities/coins_service.dart
lib/presentation/coins_screen.dart
import 'dart:convert';
import 'package:http/http.dart';
class CoinsService{
  static final CoinsService _singleton =  CoinsService._internal();
  CoinsService._internal();
  static CoinsService get instance => _singleton;
  final _baseURL = 'https://44a3d77f-08c1-4a76-8073-52e7d46c888b.mock.pstmn.io/';
  Future<List<dynamic>> getCoins()async{
    const coinsEndpoint = '/coins/markets';
    Response res = await get(Uri.parse(_baseURL + coinsEndpoint));
    if (res.statusCode == 200) {
      var body = jsonDecode(res.body);
      return body;
    } else {
      throw "Unable to retrieve coins";
    }
  }
}
Crypto API solution code

Challenge 1: Get

...