Author name: krustylab

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Let’s create a Flutter Firebase app and connect Firebase to the Flutter project. This is crucial, especially if you plan to use Firebase services like authentication, Firestore, or Firebase Cloud Messaging. Here’s a guide on how to connect Firebase in a Flutter project: Step 1: Create a Firebase project Step 2: Register your app with Firebase Step 3: Add Firebase SDK to your Flutter project dependencies: flutter: sdk: flutter firebase_core: ^1.0.0 firebase_auth: ^3.0.0 # If you plan to use Firebase Authentication cloud_firestore: ^3.0.0 # If you plan to use Firestore Step 4: Initialize Firebase in your Flutter app import ‘package:flutter/material.dart’;import ‘package:firebase_core/firebase_core.dart’; Initialize Firebase in the main() function before running the app: void main() async { WidgetsFlutterBinding.ensureInitialized(); await Firebase.initializeApp(); runApp(MyApp());} Ensure you add the Google services plugin at the bottom of the android/app/build.gradle file (just before the last line }): apply plugin: ‘com.google.gms.google-services’ On iOS, ensure you add the following in the ios/Runner/AppDelegate.swift file: import UIKitimport Flutterimport Firebase@UIApplicationMain@objc class AppDelegate: FlutterAppDelegate { override func application( _ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? ) -> Bool { FirebaseApp.configure() return super.application(application, didFinishLaunchingWithOptions: launchOptions) }} Step 5: Usage After these steps, Firebase is now connected to your Flutter project, and you can start using Firebase services such as Authentication, Firestore, etc., in your Flutter app. Here’s an example of how to use Google Sign-In with Firebase Authentication in your Flutter app: import ‘package:flutter/material.dart’;import ‘package:firebase_core/firebase_core.dart’;import ‘package:firebase_auth/firebase_auth.dart’;import ‘package:google_sign_in/google_sign_in.dart’;void main() async { WidgetsFlutterBinding.ensureInitialized(); await Firebase.initializeApp(); runApp(MyApp());}class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( title: ‘Flutter Medium App’, theme: ThemeData( primarySwatch: Colors.blue, ), home: MyHomePage(), ); }}class MyHomePage extends StatefulWidget { @override _MyHomePageState createState() => _MyHomePageState();}class _MyHomePageState extends State<MyHomePage> { final FirebaseAuth _auth = FirebaseAuth.instance; final GoogleSignIn googleSignIn = GoogleSignIn(); Future<User?> _handleSignIn() async { try { final GoogleSignInAccount? googleSignInAccount = await googleSignIn.signIn(); final GoogleSignInAuthentication googleSignInAuthentication = await googleSignInAccount!.authentication; final AuthCredential credential = GoogleAuthProvider.credential( accessToken: googleSignInAuthentication.accessToken, idToken: googleSignInAuthentication.idToken, ); final UserCredential authResult = await _auth.signInWithCredential(credential); final User? user = authResult.user; assert(!user!.isAnonymous); assert(await user!.getIdToken() != null); final User? currentUser = await _auth.currentUser; assert(user!.uid == currentUser!.uid); print(‘signInWithGoogle succeeded: $user’); return user; } catch (error) { print(error); return null; } } @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: Text(‘Flutter Medium App’), ), body: Center( child: ElevatedButton( onPressed: () { _handleSignIn() .then((User? user) => print(user)) .catchError((e) => print(e)); }, child: Text(‘Sign in with Google’), ), ), ); }} With these steps, Firebase is successfully integrated into your Flutter app, allowing you to use Firebase services such as Authentication, Firestore, etc.

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Free, well-documented APIs is every developer\’s dream, finding a free API to extend the functionalities of your Application can be a daunting task for developers, especially when you are on a budget. This article brings you our best three free APIs you can use in your next project. Before we start with our list, I want first to remind us what an API is, an API is short for Application Programming Interface(API). It is basically a way for our application to communicate with another Application which exposes endpoints for developers to perform limited operations such as fetching data from their database, this in turn extends the functionalities of the client application(our Application), as we are using data from the server application\’s database. Most API Endpoints exposed for client Application is not free for developers\’ use; so it is a relief when we discover free APIs that we can use today in our Application (Web or Mobile) to give it extra superpowers! Movie Database Similar to IMDB, this site provides movie and television information. Get information about each title\’s title, year, Metascore rating, IMDB rating, release date, runtime, genre, directors, writers, actors, plot, awards, posters, and more. So developers looking for a free API to use for a movie review App for instance can easily integrate this API into their application Google Search Google search API is free, rapid, and easy to use. There are no captchas, so you can do as many searches as you like. Get search results with links, titles, and descriptions. Check the SERPs and scrape Google News. Spotify Fetch data from the Spotify music catalog, manage users\’ playlists and saved music, get recommendations, control Spotify Connect, and more. Based on simple REST principles, the Spotify Web API endpoints return JSON metadata about music artists, albums, and tracks, directly from the Spotify Data Catalogue, and what\’s more? it\’s free!!