Setting environment variables in Flutter

Question

For example, building a client for an API, like Twitch.

In a Dart CLI binary, I could use a generic environment variable, or a Dart definition variable. For example,

Answer 1

Create a class:

import 'package:flutter/foundation.dart';

class AppUtils {
  static String get clientId {
    if (kDebugMode) return 'debug_id';
    else if (kProfileMode) return 'profile_id';
    else if (kReleaseMode) return 'production_id';
    else if (kIsWeb) return 'web_mode_id';
    
    throw ArgumentError('No mode detected');
  }
}

Usage:

var id = AppUtils.clientId;