Blog Studio Go to console

FirebaseCore Framework Reference

FirebaseApp

class FirebaseApp : NSObject

The entry point of Firebase SDKs.

Initialize and configure FirebaseApp using FirebaseApp.configure() or other customized ways as shown below.

The logging system has two modes: default mode and debug mode. In default mode, only logs with log level Notice, Warning and Error will be sent to device. In debug mode, all logs will be sent to device. The log levels that Firebase uses are consistent with the ASL log levels.

Enable debug mode by passing the -FIRDebugEnabled argument to the application. You can add this argument in the application’s Xcode scheme. When debug mode is enabled via -FIRDebugEnabled, further executions of the application will also be in debug mode. In order to return to default mode, you must explicitly disable the debug mode with the application argument -FIRDebugDisabled.

It is also possible to change the default logging level in code by calling FirebaseConfiguration.shared.setLoggerLevel(_:) with the desired level.

  • Configures a default Firebase app. Raises an exception if any configuration step fails. The default app is named “__FIRAPP_DEFAULT”. This method should be called after the app is launched and before using Firebase services. This method should be called from the main thread and contains synchronous file I/O (reading GoogleService-Info.plist from disk).

    Declaration

    Swift

    class func configure()

  • Configures the default Firebase app with the provided options. The default app is named “__FIRAPP_DEFAULT”. Raises an exception if any configuration step fails. This method should be called from the main thread.

    Declaration

    Swift

    class func configure(options: FIROptions)

    Parameters

    options

    The Firebase application options used to configure the service.

  • Configures a Firebase app with the given name and options. Raises an exception if any configuration step fails. This method should be called from the main thread.

    Declaration

    Swift

    class func configure(name: String, options: FIROptions)

    Parameters

    name

    The application’s name given by the developer. The name should should only contain Letters, Numbers and Underscore.
    options

    The Firebase application options used to configure the services.

  • Returns the default app, or nil if the default app does not exist.

    Declaration

    Swift

    class func app() -> FirebaseApp?

  • Returns a previously created FirebaseApp instance with the given name, or nil if no such app exists. This method is thread safe.

    Declaration

    Swift

    class func app(name: String) -> FirebaseApp?

  • Returns the set of all extant FirebaseApp instances, or nil if there are no FirebaseApp instances. This method is thread safe.

    Declaration

    Swift

    class var allApps: [String : FirebaseApp]? { get }

  • Cleans up the current FirebaseApp, freeing associated data and returning its name to the pool for future use. This method is thread safe.

    Declaration

    Swift

    func delete() async -> Bool

  • Unavailable

    FirebaseApp instances should not be initialized directly. Call FirebaseApp.configure(), FirebaseApp.configure(options:), or FirebaseApp.configure(name:options:) directly.

  • Gets the name of this app.

    Declaration

    Swift

    var name: String { get }

  • Gets a copy of the options for this app. These are non-modifiable.

    Declaration

    Swift

    @NSCopying var options: FIROptions { get }

  • Gets or sets whether automatic data collection is enabled for all products. Defaults to true unless FirebaseDataCollectionDefaultEnabled is set to NO in your app’s Info.plist. This value is persisted across runs of the app so that it can be set once when users have consented to collection.

    Declaration

    Swift

    var isDataCollectionDefaultEnabled: Bool { get set }