Firebase CLI

The Firebase Command Line Interface (CLI) Tools can be used to test, manage, and deploy your Firebase project from the command line.

• Deploy code and assets to your Firebase projects
• Run a local web server for your Firebase Hosting site
• Interact with data in your Firebase database
• Import/Export users into/from Firebase Auth

To get started with the Firebase CLI, read the full list of commands below or check out the documentation.

Installation

Node Package

You can install the Firebase CLI using npm (the Node Package Manager). Note that you will need to install Node.js and npm. Installing Node.js should install npm as well.

To download and install the Firebase CLI run the following command:

npm install -g firebase-tools

This will provide you with the globally accessible firebase command.

Standalone Binary

The standalone binary distribution of the Firebase CLI allows you to download a firebase executable without any dependencies.

To download and install the CLI run the following command:

curl -sL firebase.tools | bash

Commands

The command firebase --help lists the available commands and firebase <command> --help shows more details for an individual command.

If a command is project-specific, you must either be inside a project directory with an active project alias or specify the Firebase project id with the -P <project_id> flag.

Below is a brief list of the available commands and their function:

Configuration Commands

Command	Description
login	Authenticate to your Firebase account. Requires access to a web browser.
logout	Sign out of the Firebase CLI.
login:ci	Generate an authentication token for use in non-interactive environments.
use	Set active Firebase project, manage project aliases.
open	Quickly open a browser to relevant project resources.
init	Setup a new Firebase project in the current directory. This command will create a firebase.json configuration file in your current directory.
help	Display help information about the CLI or specific commands.

Append --no-localhost to login (i.e., firebase login --no-localhost) to copy and paste code instead of starting a local server for authentication. A use case might be if you SSH into an instance somewhere and you need to authenticate to Firebase on that machine.

Project Management Commands

Command	Description
apps:create	Create a new Firebase app in a project.
apps:list	List the registered apps of a Firebase project.
apps:sdkconfig	Print the configuration of a Firebase app.
projects:addfirebase	Add Firebase resources to a Google Cloud Platform project.
projects:create	Create a new Firebase project.
projects:list	Print a list of all of your Firebase projects.

Deployment and Local Emulation

These commands let you deploy and interact with your Firebase services.

Command	Description
emulators:exec	Start the local Firebase emulators, run a test script, then shut down the emulators.
emulators:start	Start the local Firebase emulators.
deploy	Deploys your Firebase project. Relies on firebase.json configuration and your local project folder.
serve	Start a local server with your Firebase Hosting configuration and HTTPS-triggered Cloud Functions. Relies on firebase.json.
setup:emulators:database	Downloads the database emulator.
setup:emulators:firestore	Downloads the firestore emulator.

App Distribution Commands

Command	Description
appdistribution:distribute	Upload a distribution.

Auth Commands

Command	Description
auth:import	Batch importing accounts into Firebase from data file.
auth:export	Batch exporting accounts from Firebase into data file.

Detailed doc is here.

Realtime Database Commands

Command	Description
database:get	Fetch data from the current project's database and display it as JSON. Supports querying on indexed data.
database:set	Replace all data at a specified location in the current project's database. Takes input from file, STDIN, or command-line argument.
database:push	Push new data to a list at a specified location in the current project's database. Takes input from file, STDIN, or command-line argument.
database:remove	Delete all data at a specified location in the current project's database.
database:update	Perform a partial update at a specified location in the current project's database. Takes input from file, STDIN, or command-line argument.
database:profile	Profile database usage and generate a report.
database:instances:create	Create a realtime database instance.
database:instances:list	List realtime database instances.
database:settings:get	Read the realtime database setting at path
database:settings:set	Set the realtime database setting at path.

Extensions Commands

Command	Description
ext	Display information on how to use ext commands and extensions installed to your project.
ext:configure	Configure an existing extension instance.
ext:info	Display information about an extension by name ([email protected] for a specific version)
ext:install	Install an extension.
ext:list	List all the extensions that are installed in your Firebase project.
ext:uninstall	Uninstall an extension that is installed in your Firebase project by Instance ID.
ext:update	Update an existing extension instance to the latest version.

Cloud Firestore Commands

Command	Description
firestore:delete	Delete documents or collections from the current project's database. Supports recursive deletion of subcollections.
firestore:indexes	List all deployed indexes from the current project.

Cloud Functions Commands

Command	Description
functions:log	Read logs from deployed Cloud Functions.
functions:config:set	Store runtime configuration values for the current project's Cloud Functions.
functions:config:get	Retrieve existing configuration values for the current project's Cloud Functions.
functions:config:unset	Remove values from the current project's runtime configuration.
functions:config:clone	Copy runtime configuration from one project environment to another.
functions:delete	Delete one or more Cloud Functions by name or group name.
functions:shell	Locally emulate functions and start Node.js shell where these local functions can be invoked with test data.

Hosting Commands

Command	Description
hosting:disable	Stop serving Firebase Hosting traffic for the active project. A "Site Not Found" message will be displayed at your project's Hosting URL after running this command.

Authentication

General

The Firebase CLI can use one of three authentication methods listed in descending priority:

• GOOGLE_APPLICATION_CREDENTIALS - if this environment variable points to a service account key file, the Firebase CLI will authenticate as a service account.
• firebase login - you can log in to the CLI directly as yourself. The CLI will store an authorized user credential.
  • FIREBASE_TOKEN - you can explicitly use this environment variable to pass in a long-lived user token from firebase login:ci.
• gcloud auth application-default login - if your development machine has application default credentials from the Google Cloud CLI, we will use them if none of the above credentials are present.

Cloud Functions Emulator

The Cloud Functions emulator is exposed through commands like emulators:start, serve and functions:shell. Emulated Cloud Functions run as independent node processes on your development machine which means they have their own credential discovery mechanism.

By default these node processes are not able to discover credentials from firebase login. In order to provide a better development experience, when you are logged in to the CLI through firebase login we take the user credentials and construct a temporary credential that we pass into the emulator through GOOGLE_APPLICATION_CREDENTIALS. We only do this if you have not already set the GOOGLE_APPLICATION_CREDENTIALS environment variable yourself.

Using with CI Systems

The Firebase CLI requires a browser to complete authentication, but is fully compatible with CI and other headless environments.

1. On a machine with a browser, install the Firebase CLI.
2. Run firebase login:ci to log in and print out a new refresh token (the current CLI session will not be affected).
3. Store the output token in a secure but accessible way in your CI system.

There are two ways to use this token when running Firebase commands:

1. Store the token as the environment variable FIREBASE_TOKEN and it will automatically be utilized.
2. Run all commands with the --token <token> flag in your CI system.

The order of precedence for token loading is flag, environment variable, active project.

On any machine with the Firebase CLI, running firebase logout --token <token> will immediately revoke access for the specified token.

Using as a Module

The Firebase CLI can also be used programmatically as a standard Node module. Each command is exposed as a function that takes an options object and returns a Promise. For example:

var client = require("firebase-tools");
client.projects
  .list()
  .then(function(data) {
    console.log(data);
  })
  .catch(function(err) {
    // handle error
  });

client
  .deploy({
    project: "myfirebase",
    token: process.env.FIREBASE_TOKEN,
    force: true,
    cwd: "/path/to/project/folder",
  })
  .then(function() {
    console.log("Rules have been deployed!");
  })
  .catch(function(err) {
    // handle error
  });

Some commands, such as firebase use require both positional arguments and options flags. In this case you first provide any positional arguments as strings followed by an object containing the options:

var client = require("firebase-tools");
client
  .use("projectId", {
    // Equivalent to --add when using the CLI
    add: true,
  })
  .then(function(data) {
    console.log(data);
  })
  .catch(function(err) {
    // handle error
  });

Note: when used in a limited environment like Cloud Functions, not all firebase-tools commands will work programatically because they require access to a local filesystem.