flutter firebase connection code step by step
flutter firebase connection code step by step

How to connect flutter with firebase? | Easy Steps

Flutter Firebase:

Firebase is a mobile and web application development platform developed by Google. It provides a number of services and tools that can be used to build and maintain applications, including a real-time database, user authentication, and hosting.

Firebase can be easily integrated into a Flutter app using the firebase_core and cloud_firestore packages from pub.dartlang.org. These packages provide a number of APIs and widgets that can be used to interact with Firebase services, such as reading and writing data, authenticating users, and more.

Using Firebase with Flutter can greatly enhance the functionality and user experience of your app, as it allows you to easily store and retrieve data from the cloud, authenticate users, and more. If you are building a Flutter app and are looking to add cloud-based features, Firebase is definitely worth considering.

Firebase Benefits for Flutter Apps:

Here are some benefits of using Firebase with Flutter:

  • Real-time data synchronization: Firebase’s real-time database allows you to store and retrieve data in real-time, so that all connected clients can receive updates automatically when the data changes. This can be especially useful for building collaborative apps or for displaying live data.
  • User authentication: Firebase provides a number of options for authenticating users, including email/password, Google, Facebook, and more. This makes it easy to add secure login and registration to your app.
  • Hosting: Firebase offers hosting for web applications, so you can easily deploy your Flutter web app to the cloud.
  • Analytics: Firebase provides detailed analytics for your app, including user behavior, performance, and more. This can be useful for understanding how your app is being used and for identifying areas for improvement.
  • Remote configuration: Firebase allows you to easily change the behavior and appearance of your app without requiring an update. This can be useful for A/B testing or for making quick changes to your app.

Connection Code:

To connect to Firebase with Flutter, you will need to install the firebase_core and cloud_firestore packages from pub.dartlang.org.

Here is an example of how you can set up a connection to Firebase in a Flutter app:

import 'package:firebase_core/firebase_core.dart';
import 'package:cloud_firestore/cloud_firestore.dart';

Future<void> main() async {
  // Initialize Firebase
  final FirebaseApp app = await FirebaseApp.configure(
    name: 'my_app',
    options: const FirebaseOptions(
      googleAppID: '1:1234567890:android:abcdefghijklmnop',
      apiKey: 'AIzaSyAbCdEfGhIjKlMnOpQrStUvWxYz',
      databaseURL: 'https://my-app.firebaseio.com',

  // Initialize Cloud Firestore
  final Firestore firestore = Firestore(app: app);

  // Perform operations with Cloud Firestore
  final DocumentReference document = firestore.document('my_collection/my_document');
  await document.setData({
    'key': 'value',

  final DocumentSnapshot snapshot = await document.get();

This code initializes the Firebase app and sets up a connection to Cloud Firestore. You can then use the Firestore object to perform operations with Cloud Firestore, such as reading and writing data.


Keep in mind that this is just an example, and you will need to replace the googleAppID, apiKey, and databaseURL values with your own Firebase project’s information.