App interface

A Firebase app holds the initialization information for a collection of services.

Signature:

export interface App

Properties

Property Type Description
name string The (read-only) name for this app.The default app's name is "[DEFAULT]".
options AppOptions The (read-only) configuration options for this app. These are the original parameters given in initializeApp().

App.name

The (read-only) name for this app.

The default app's name is "[DEFAULT]".

Signature:

name: string;

Example 1

// The default app's name is "[DEFAULT]"
initializeApp(defaultAppConfig);
console.log(admin.app().name);  // "[DEFAULT]"

Example 2

// A named app's name is what you provide to initializeApp()
const otherApp = initializeApp(otherAppConfig, "other");
console.log(otherApp.name);  // "other"

App.options

The (read-only) configuration options for this app. These are the original parameters given in initializeApp().

Signature:

options: AppOptions;

Example

const app = initializeApp(config);
console.log(app.options.credential === config.credential);  // true
console.log(app.options.databaseURL === config.databaseURL);  // true