Config Variables for your Flutter apps

Plugin that exposes environment variables to your Dart code in Flutter as well as to your native code in iOS and Android.

Inspired by react-native-config

Basic Usage

Create a new file .env in the root of your Flutter app:

API_URL=https://myapi.com
FABRIC_ID=abcdefgh

load all environment varibles in main.dart

import 'package:flutter_config/flutter_config.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized(); // Required by FlutterConfig
  await FlutterConfig.loadEnvVariables();

  runApp(MyApp());
}

Now you can access your environment varibles anywhere in your app.

import 'package:flutter_config/flutter_config.dart';

FlutterConfig.get('FABRIC_ID') // returns 'abcdefgh'

Keep in mind this module doesn't obfuscate or encrypt secrets for packaging, so do not store sensitive keys in .env. It's basically impossible to prevent users from reverse engineering mobile app secrets, so design your app (and APIs) with that in mind.

Load Environment Varibles in Swift

First import the plugin

import flutter_config

Then you can use the .env Variable, replace ENV_API_KEY with yours.

flutter_config.FlutterConfigPlugin.env(for: "ENV_API_KEY")

Getting Started

Install the latest version of the plugin

Refer to Android Setup Guide for initial setup and advanced options

No additional setup is required for iOS, however, for advanced usage refer to the iOS Setup Guide

Testing

Whenever you need to use FlutterConfig in your tests, simply use the method loadValueForTesting

import 'package:flutter_config/flutter_config.dart';

void main() {
  FlutterConfig.loadValueForTesting({'BASE_URL': 'https://www.mockurl.com'});
  
  test('mock http client test', () {
    final client = HttpClient(
      baseUrl: FlutterConfig.get('BASE_URL')
    );
  });
}