Vai alla sezione Realtime Database della Console Firebase.
Ti verrà chiesto di selezionare un progetto Firebase esistente.
Segui il flusso di lavoro per la creazione del database.
Seleziona una modalità iniziale per le regole di sicurezza:
Modalità di test
Ottimo per iniziare a utilizzare le librerie client mobile e web, ma consente a chiunque di leggere e sovrascrivere i tuoi dati. Dopo il test, effettua
assicurati di rivedere la sezione Comprensione delle regole di Firebase Realtime Database.
.
Per iniziare, seleziona testmode.
Modalità di blocco
Nega tutte le operazioni di lettura e scrittura da client web e mobile.
I tuoi server di applicazioni autenticati possono comunque accedere al tuo database.
Scegli una regione per il database. In base alla regione scelta,
lo spazio dei nomi del database sarà nel formato <databaseName>.firebaseio.com o
<databaseName>.<region>.firebasedatabase.app. Per ulteriori informazioni, vedi
seleziona le località per il progetto.
Fai clic su Fine.
Quando attivi Realtime Database, viene attivata anche l'API in Cloud API Manager.
Aggiungere Firebase Realtime Database all'app
Dalla directory principale del progetto Flutter, esegui il seguente comando per installare il plug-in:
flutterpubaddfirebase_database
Al termine, ricrea l'applicazione Flutter:
flutterrun
Configurare le regole del database
Realtime Database offre un linguaggio di regole dichiarative che consente di
definisci come strutturare i dati, come indicizzare e quando
i dati possono essere letti e scritti.
Inizializzare il pacchetto Firebase Realtime Database
Per iniziare a utilizzare il pacchetto Realtime Database all'interno del tuo progetto, importalo in
nella parte superiore dei file di progetto:
[null,null,["Ultimo aggiornamento 2025-07-25 UTC."],[],[],null,["# Get Started with Realtime Database\n\n\u003cbr /\u003e\n\nPrerequisites\n-------------\n\n1. [Install `firebase_core`](/docs/flutter/setup) and add the initialization code to your app if you haven't already.\n2. Add your app to your Firebase project in the [Firebase console](https://console.firebase.google.com/).\n\nCreate a Database\n-----------------\n\n1. Navigate to the **Realtime Database** section of the [Firebase console](https://console.firebase.google.com/project/_/database).\n You'll be prompted to select an existing Firebase project.\n Follow the database creation workflow.\n\n2. Select a starting mode for your security rules:\n\n **Test mode**\n\n Good for getting started with the mobile and web client libraries,\n but allows anyone to read and overwrite your data. After testing, **make\n sure to review the [Understand Firebase Realtime Database Rules](/docs/database/security)\n section.**\n | **Note:** If you create a database in Test mode and make no changes to the default world-readable and world-writeable security rules within a trial period, you will be alerted by email, then your database rules will deny all requests. Note the expiration date during the Firebase console setup flow.\n\n To get started, select testmode.\n\n **Locked mode**\n\n Denies all reads and writes from mobile and web clients.\n Your authenticated application servers can still access your database.\n3. Choose a region for the database. Depending on your choice of region,\n the database namespace will be of the form `\u003cdatabaseName\u003e.firebaseio.com` or\n `\u003cdatabaseName\u003e.\u003cregion\u003e.firebasedatabase.app`. For more information, see\n [select locations for your project](/docs/projects/locations#rtdb-locations).\n\n4. Click **Done**.\n\nWhen you enable Realtime Database, it also enables the API in the\n[Cloud API Manager](https://console.cloud.google.com/projectselector/apis/api/firebasedatabase.googleapis.com/overview).\n\nAdd Firebase Realtime Database to your app\n------------------------------------------\n\n1. From the root of your Flutter project, run the following command to install the plugin:\n\n flutter pub add firebase_database\n\n2. Once complete, rebuild your Flutter application:\n\n flutter run\n\nConfigure database rules\n------------------------\n\nThe Realtime Database provides a declarative rules language that allows you to\ndefine how your data should be structured, how it should be indexed, and when\nyour data can be read from and written to.\n| **Note:** By default, read and write access to your database is restricted so only authenticated users can read or write data. To get started without setting up Firebase Authentication, you can [configure your rules for public access](/docs/rules/basics#default_rules_locked_mode). This does make your database open to anyone, even people not using your app, so be sure to restrict your database again when you set up authentication.\n\nInitialize the Firebase Realtime Database package\n-------------------------------------------------\n\nTo start using the Realtime Database package within your project, import it at\nthe top of your project files: \n\n import 'package:firebase_database/firebase_database.dart';\n\nTo use the default Database instance, call the `instance`\ngetter on `FirebaseDatabase`: \n\n FirebaseDatabase database = FirebaseDatabase.instance;\n\nIf you'd like to use it with a secondary Firebase App, use the static `instanceFor` method: \n\n FirebaseApp secondaryApp = Firebase.app('SecondaryApp');\n FirebaseDatabase database = FirebaseDatabase.instanceFor(app: secondaryApp);\n\nIf you'd like to use a different RTDB instance on the same project, you can pass in a `databaseUrl` using\nthe static `instanceFor` method: \n\n final firebaseApp = Firebase.app();\n final rtdb = FirebaseDatabase.instanceFor(app: firebaseApp, databaseURL: 'https://your-realtime-database-url.firebaseio.com/');\n\nNext Steps\n----------\n\n- Learn how to [structure data](/docs/database/flutter/structure-data) for Realtime Database.\n\n- [Scale your data across multiple database instances.](/docs/database/usage/sharding)\n\n- [Read and write data.](/docs/database/flutter/read-and-write)\n\n- [View your database in the\n Firebase console.](//console.firebase.google.com/project/_/database/data)"]]
