Flutter. Using environment variables.

Artem Diashkin

Apr 19, 2020·1 min read

How to implement functionality for using .env variables? Let’s see…

To use environment variables from .env files we will use flutter_dotenv package.

Step 1

First we’ll need to add flutter_dotenv package to our dependencies:

flutter_dotenv: ^2.1.0

Step 2

Import flutter_dotenv package in main.dart file:

import 'package:flutter_dotenv/flutter_dotenv.dart';

Step 3

Next, we will change our main method

from

void main() => runApp(MyApp());

to

Future main() async {
  await DotEnv().load('.env');
  runApp(MyApp());
}

Step 4

To extract .env variable, VAR_NAME=HELLO_WORLD, for example, we will need to use this syntax:

import 'package:flutter_dotenv/flutter_dotenv.dart';// some classprint(DotEnv().env['VAR_NAME'])