Installazione e Configurazione sulle piattaforme Apple
Mantieni tutto organizzato con le raccolte
Salva e classifica i contenuti in base alle tue preferenze.
Firebase Realtime Database è un database ospitato sul cloud. I dati vengono archiviati in formato JSON
e sincronizzati in tempo reale con ogni client connesso. Quando crei
app multipiattaforma con i nostri SDK per Android, iOS e JavaScript, tutti i tuoi
client condividono un'istanza di Realtime Database e ricevono automaticamente gli aggiornamenti con
i dati più recenti.
Firebase Realtime Database è disponibile su tutte le piattaforme Apple, tra cui iOS,
macOS, macOS Catalyst, tvOS e watchOS. Non è disponibile per gli App Clip.
Le istruzioni di configurazione in questa pagina fanno riferimento a iOS in esempi specifici, ma sono
generiche e funzionano per qualsiasi piattaforma Apple di destinazione.
Aggiungi la tua app al progetto Firebase nella Firebase Console.
Crea un database
Vai alla sezione Realtime Database della
console Firebase.
Ti verrà chiesto di selezionare un progetto Firebase esistente.
Segui il flusso di lavoro di creazione del database.
Seleziona una modalità iniziale per Firebase Security Rules:
Modalità di prova
Ideale per iniziare a utilizzare le librerie client web e mobile,
ma consente a chiunque di leggere e sovrascrivere i tuoi dati. Dopo il test, assicurati
di esaminare la sezione Comprendere le regole di Firebase Realtime Database.
Per iniziare a utilizzare l'SDK per il web, Apple o Android, seleziona testmode.
Modalità di blocco
Nega tutte le operazioni di lettura e scrittura dei client web e su dispositivi mobili.
I server delle applicazioni autenticati possono comunque accedere al database.
Scegli una posizione per il database.
A seconda della
posizione del database, l'URL
del nuovo database avrà uno dei seguenti formati:
DATABASE_NAME.firebaseio.com (per i database in us-central1)
DATABASE_NAME.REGION.firebasedatabase.app
(per i database in tutte le altre località)
Fai clic su Fine.
Quando abiliti Realtime Database, viene abilitata anche l'API in
Cloud API Manager.
Aggiungere Firebase Realtime Database alla tua app
Utilizza Swift Package Manager per installare e gestire le dipendenze di Firebase.
In Xcode, con il progetto dell'app aperto, vai a File > Add Packages (File > Aggiungi pacchetti).
Quando richiesto, aggiungi il repository dell'SDK delle piattaforme Apple di Firebase:
https://github.com/firebase/firebase-ios-sdk.git
Scegli la raccolta Realtime Database.
Aggiungi il flag -ObjC alla sezione Altri flag del linker delle impostazioni di build del target.
Al termine, Xcode inizierà automaticamente a risolvere e a scaricare le tue dipendenze in background.
Configura Realtime Database Security Rules
Realtime Database fornisce un linguaggio di regole dichiarativo che ti consente di definire come devono essere strutturati i tuoi dati, come devono essere indicizzati e quando possono essere letti e scritti.
Configura Firebase Realtime Database
Devi inizializzare Firebase prima che venga creato o utilizzato qualsiasi riferimento all'app Firebase. Se hai già eseguito questa operazione per un'altra funzionalità di Firebase, puoi saltare questo passaggio.
Importa il modulo FirebaseCore nel tuo
UIApplicationDelegate, nonché tutti gli altri
moduli Firebase utilizzati dal delegato dell'app.
Ad esempio, per utilizzare Cloud Firestore e Authentication:
Configura un'istanza condivisa
FirebaseApp
nel metodo application(_:didFinishLaunchingWithOptions:) del delegato dell'app:
SwiftUI
// Use Firebase library to configure APIsFirebaseApp.configure()
Swift
// Use Firebase library to configure APIsFirebaseApp.configure()
Objective-C
// Use Firebase library to configure APIs[FIRAppconfigure];
Se utilizzi SwiftUI, devi creare un delegato dell'applicazione e collegarlo
alla struttura App tramite UIApplicationDelegateAdaptor o
NSApplicationDelegateAdaptor. Devi anche disattivare lo swizzling del delegato dell'app. Per
ulteriori informazioni, consulta le istruzioni per SwiftUI.
SwiftUI
@mainstructYourApp:App{// register app delegate for Firebase setup@UIApplicationDelegateAdaptor(AppDelegate.self)vardelegatevarbody:someScene{WindowGroup{NavigationView{ContentView()}}}}
Crea un riferimento al database e specifica la posizione in cui vuoi
scrivere.
[null,null,["Ultimo aggiornamento 2025-08-16 UTC."],[],[],null,["# Installation & Setup on Apple platforms\n\n\u003cbr /\u003e\n\nThe Firebase Realtime Database is a cloud-hosted database. Data is stored as JSON\nand synchronized in realtime to every connected client. When you build\ncross-platform apps with our Android, iOS, and JavaScript SDKs, all of your\nclients share one Realtime Database instance and automatically receive updates with\nthe newest data.\n\nFirebase Realtime Database is available on all Apple platforms, including iOS,\nmacOS, macOS Catalyst, tvOS, and watchOS. It is not available for App Clips.\nThe setup instructions in this page reference iOS in specific examples, but are\ngeneric and work for any Apple platform target.\n\nPrerequisites\n-------------\n\n1. [Install the Firebase SDK](/docs/ios/setup).\n2. Add your app to your Firebase project in the [Firebase console](//console.firebase.google.com/).\n\nCreate a Database\n-----------------\n\n1. Navigate to the **Realtime Database** section of the\n [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 Firebase 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\n :\n | **Note:** If you create a database in Test mode and make no changes to the default world-readable and world-writeable 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 with the web, Apple, or Android SDK, 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.\n\n3. Choose a location for the database.\n\n Depending on the\n [location of the database](/docs/projects/locations#rtdb-locations), the\n URL for the new database will be in one of the following forms:\n - \u003cvar translate=\"no\"\u003eDATABASE_NAME\u003c/var\u003e`.firebaseio.com` (for\n databases in `us-central1`)\n\n - \u003cvar translate=\"no\"\u003eDATABASE_NAME\u003c/var\u003e`.`\u003cvar translate=\"no\"\u003eREGION\u003c/var\u003e`.firebasedatabase.app`\n (for databases in all other 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\nUse Swift Package Manager to install and manage Firebase dependencies.\n| Visit [our installation guide](/docs/ios/installation-methods) to learn about the different ways you can add Firebase SDKs to your Apple project, including importing frameworks directly and using CocoaPods.\n\n1. In Xcode, with your app project open, navigate to **File \\\u003e Add Packages**.\n2. When prompted, add the Firebase Apple platforms SDK repository: \n\n```text\n https://github.com/firebase/firebase-ios-sdk.git\n```\n| **Note:** New projects should use the default (latest) SDK version, but you can choose an older version if needed.\n3. Choose the Realtime Database library.\n4. Add the `-ObjC` flag to the *Other Linker Flags* section of your target's build settings.\n5. When finished, Xcode will automatically begin resolving and downloading your dependencies in the background.\n\nConfigure Realtime Database Security 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 [Authentication](/docs/auth), 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\nSet up Firebase Realtime Database\n---------------------------------\n\nYou must initialize Firebase before any Firebase app reference is created or\nused. If you have already done this for another Firebase feature, you can skip\nthis step.\n\n1. Import the `FirebaseCore` module in your `UIApplicationDelegate`, as well as any other [Firebase modules](/docs/ios/setup#available-pods) your app delegate uses. For example, to use Cloud Firestore and Authentication: \n\n #### SwiftUI\n\n ```swift\n import SwiftUI\n import FirebaseCore\n import FirebaseFirestore\n import FirebaseAuth\n // ...\n \n ```\n\n #### Swift\n\n ```swift\n import FirebaseCore\n import FirebaseFirestore\n import FirebaseAuth\n // ...\n \n ```\n\n #### Objective-C\n\n ```objective-c\n @import FirebaseCore;\n @import FirebaseFirestore;\n @import FirebaseAuth;\n // ...\n \n ```\n2. Configure a [`FirebaseApp`](/docs/reference/swift/firebasecore/api/reference/Classes/FirebaseApp) shared instance in your app delegate's `application(_:didFinishLaunchingWithOptions:)` method: \n\n #### SwiftUI\n\n ```swift\n // Use Firebase library to configure APIs\n FirebaseApp.configure()\n ```\n\n #### Swift\n\n ```swift\n // Use Firebase library to configure APIs\n FirebaseApp.configure()\n ```\n\n #### Objective-C\n\n ```objective-c\n // Use Firebase library to configure APIs\n [FIRApp configure];\n ```\n3. If you're using SwiftUI, you must create an application delegate and attach it to your `App` struct via `UIApplicationDelegateAdaptor` or `NSApplicationDelegateAdaptor`. You must also disable app delegate swizzling. For more information, see the [SwiftUI instructions](/docs/ios/learn-more#swiftui). \n\n #### SwiftUI\n\n ```swift\n @main\n struct YourApp: App {\n // register app delegate for Firebase setup\n @UIApplicationDelegateAdaptor(AppDelegate.self) var delegate\n\n var body: some Scene {\n WindowGroup {\n NavigationView {\n ContentView()\n }\n }\n }\n }\n \n ```\n4. Create a reference to your database and specify the location you want to write to. **Important** : To get a reference to a database other than a `us-central1` default database, you must pass the database URL to `database()` (or for Objective-C `databaseWithURL`). For a `us-central1` default database, you can call `database()` (or `database`) without arguments.\n |\n | You can find your Realtime Database URL in the *Realtime Database* section of the\n | [Firebase console](//console.firebase.google.com/). Depending on the\n | [location of the database](/docs/projects/locations#rtdb-locations),\n | the database URL will be in one of the following forms:\n | - `https://`\u003cvar translate=\"no\"\u003eDATABASE_NAME\u003c/var\u003e`.firebaseio.com` (for databases in `us-central1`)\n | - `https://`\u003cvar translate=\"no\"\u003eDATABASE_NAME\u003c/var\u003e`.`\u003cvar translate=\"no\"\u003eREGION\u003c/var\u003e`.firebasedatabase.app` (for databases in all other locations)\n\n ### Swift\n\n **Note:** This Firebase product is not available on the App Clip target. \n\n ```swift\n var ref: DatabaseReference!\n\n ref = Database.database().reference()\n ```\n\n ### Objective-C\n\n **Note:** This Firebase product is not available on the App Clip target. \n\n ```objective-c\n @property (strong, nonatomic) FIRDatabaseReference *ref;\n\n self.ref = [[FIRDatabase database] reference];\n ```\n\nNext Steps\n----------\n\n- Learn how to [structure data](/docs/database/ios/structure-data) for Realtime Database.\n\n- [Scale your data across multiple database\n instances.](/docs/database/usage/sharding)\n\n- [Read and write data.](/docs/database/ios/read-and-write)\n\n- [View your database in the\n Firebase console.](//console.firebase.google.com/project/_/database/data)\n\n- Prepare to launch your app:\n\n - Enable [App Check](/docs/app-check/ios) to help ensure that only your\n apps can access your databases.\n\n - Set up [budget\n alerts](/docs/projects/billing/avoid-surprise-bills#set-up-budget-alert-emails)\n for your project in the Google Cloud console.\n\n - Monitor the [*Usage and billing*\n dashboard](//console.firebase.google.com/project/_/usage)\n in the Firebase console to get an overall picture of your project's\n usage across multiple Firebase services.\n You can also visit the [Realtime Database *Usage*\n dashboard](//console.firebase.google.com/project/_/database/usage) for more\n detailed usage information.\n\n - Review the [Firebase launch checklist](/support/guides/launch-checklist)."]]