Type Alias FirebaseNamespacedExport<Namespace, M, S, HasCustomArg>

FirebaseNamespacedExport: ReactNativeFirebase.Module & Record<
    Namespace,
    FirebaseModuleWithStaticsAndApp<M, S>,
> & {
    app(
        name?: string,
    ): ReactNativeFirebase.FirebaseApp & Record<
        Namespace,
        HasCustomArg extends true ? (arg?: string) => M : () => M,
    >;
}

Type for the firebase named export from module packages. Provides complete typing for:

Root level access: firebase.functions(app?)
App level access: firebase.app().functions(region?)
Statics: firebase.functions.HttpsErrorCode
Root properties: firebase.SDK_VERSION, firebase.app(), etc.

Type Parameters

Namespace extends string
The module namespace (e.g., 'functions', 'auth', 'firestore')
M extends FirebaseModule
The module instance type (must extend FirebaseModule with app property)
S extends object = object
The module statics type
HasCustomArg extends boolean = false
true if app-level accessor takes optional string (region/url/databaseId)

Example

// In functions package:
export const firebase = getFirebaseRoot() as ReactNativeFirebase.FirebaseNamespacedExport<
  'functions',
  FunctionsModule,
  FunctionsStatics,
  true  // functions() takes regionOrCustomDomain
>;