firebase_fcm_client 0.0.2

Firebase Cloud Messaging (FCM) HTTP v1 API client for Dart with secure service account impersonation. Send notifications to devices, topics, and conditions without managing private keys.

example/main.dart

import 'package:firebase_fcm_client/firebase_fcm_client.dart';

Future<void> main() async {
  print('🔔 FCM Notification Example\n');

  try {
    // Initialize with impersonation
    final auth = await ServiceAccountAuth.fromImpersonation(
      serviceAccountEmail: 'fcm-sa@YOUR_PROJECT.iam.gserviceaccount.com',
      projectId: 'YOUR_PROJECT_ID',
    );
    print('✅ Authenticated\n');

    final fcm = FCMClient(auth: auth, projectId: 'YOUR_PROJECT_ID');

    // Example 1: Send to device
    print('📤 Sending to device...');
    final result = await fcm.sendToToken(
      'YOUR_DEVICE_TOKEN',
      title: '🎉 Hello',
      body: 'This is a test notification',
      data: {
        'action': 'open_app',
        'timestamp': DateTime.now().toIso8601String(),
      },
    );
    print('✅ Sent: $result\n');

    // Example 2: Send to topic
    print('📤 Sending to topic...');
    final topicResult = await fcm.sendToTopic(
      'news',
      title: '📢 News Update',
      body: 'Important announcement',
    );
    print('✅ Sent: $topicResult\n');

    await auth.close();
    print('✨ Examples completed!');
  } catch (e) {
    print('❌ Error: $e');
  }
}