This question runs in a pre-configured Salesforce environment - no personal connection required.

Write a method that fetches country data from the REST Countries API and processes it into a Map grouped by region. Make an HTTP GET request to https://restcountries.com/v3.1/all and return a Map where keys are region names and values are lists of country names.

Handle network failures gracefully by returning an empty Map. The method should parse the JSON response and extract country names and regions.

Examples:

Map<String, List<String>> regions = processCountriesFromAPI();
// Returns: {'Europe' => ['France', 'Germany', ...], 'Asia' => ['China', 'Japan', ...], ...}

Map<String, List<String>> emptyMap = processCountriesFromAPI(); // if API fails
// Returns: {}
Apex Code Editor
Sign in to Submit

Welcome to Lightning Challenge!

Create an Account

Sign up to track your progress, earn points, and compete with others. Your solutions will be saved automatically.

Create account

How It Works

  • • Write your solution in the code editor
  • • Connect your Salesforce org to test
  • • Submit to check if your solution passes
  • • Use hints if you get stuck

Note

You can test your code by connecting to Salesforce, but to save your progress and earn points, you'll need to create an account. Your solutions and achievements will be tracked automatically once you're logged in.