Async Loading

// Run this example from the package root:
//   dart run example/async_example.dart
//
// Async equivalent of penv_example.dart, for callers (e.g. server
// frameworks) that avoid synchronous file I/O.
//
// On first run there's no `.env` file yet, so penvloadAsync will create a
// placeholder at .env and throw EnvFileNotFoundException. Fill in the
// generated file and run again to see it load successfully.

// print() is fine in example scripts; avoid it in production code instead.
// ignore_for_file: avoid_print

import 'package:penv/penv.dart';

void main() async {
  try {
    final env = await penvloadAsync('.env');

    print('Loaded ${env.length} variable(s):');
    env.forEach((key, value) => print('  $key=$value'));
  } on EnvFileNotFoundException catch (e) {
    print(e);
  }
}

dart run example/async_example.dart