Adicionar o SDK Admin do Firebase ao servidor

Node.js

O SDK Admin para Node.js do Firebase está disponível em NPM. Se você ainda não tiver um arquivo package.json, crie um via npm init. Em seguida, instale o pacote npm firebase-admin e salve-o em package.json:

$ npm install firebase-admin --save

Para usar o módulo no seu aplicativo, utilize o método require em qualquer arquivo JavaScript:

const { initializeApp } = require('firebase-admin/app');

Se você estiver usando o ES2015, utilize o método import para importar o módulo:

import { initializeApp } from 'firebase-admin/app';

Java

O SDK Admin para JavaScript do Firebase foi publicado no repositório Maven central. Para instalar a biblioteca, declare-a como uma dependência no seu arquivo build.gradle:

dependencies {
  implementation 'com.google.firebase:firebase-admin:9.0.0'
}

Se você usa o Maven para criar seu app, adicione esta dependência ao pom.xml:

<dependency>
  <groupId>com.google.firebase</groupId>
  <artifactId>firebase-admin</artifactId>
  <version>9.0.0</version>
</dependency>

Python

O SDK Admin para Python do Firebase está disponível via PIP. Você pode instalar a biblioteca para todos os usuários via sudo:

$ sudo pip install firebase-admin

Ou, para instalar a biblioteca apenas para o usuário atual, passe a flag --user:

$ pip install --user firebase-admin

Go

O SDK Admin para Go pode ser instalado usando o utilitário go get:

# Install as a module dependency
$ go get firebase.google.com/go/v4

# Install to $GOPATH
$ go get firebase.google.com/go

C#

O SDK Admin para .NET pode ser instalado usando o gerenciador de pacotes .NET:

$ Install-Package FirebaseAdmin -Version 2.3.0

Se preferir, instale-o com o utilitário de linha de comando dotnet:

$ dotnet add package FirebaseAdmin --version 2.3.0

Ou você pode instalá-lo adicionando a seguinte entrada de referência do pacote ao seu arquivo .csproj:

<ItemGroup>
  <PackageReference Include="FirebaseAdmin" Version="2.3.0" />
</ItemGroup>

Linux ou macOS

export GOOGLE_APPLICATION_CREDENTIALS="/home/user/Downloads/service-account-file.json"

Windows

Com o PowerShell:

$env:GOOGLE_APPLICATION_CREDENTIALS="C:\Users\username\Downloads\service-account-file.json"

Node.js

initializeApp({
    credential: applicationDefault(),
    databaseURL: 'https://<DATABASE_NAME>.firebaseio.com'
});

Java

FirebaseOptions options = FirebaseOptions.builder()
    .setCredentials(GoogleCredentials.getApplicationDefault())
    .setDatabaseUrl("https://<DATABASE_NAME>.firebaseio.com/")
    .build();

FirebaseApp.initializeApp(options);

Python

default_app = firebase_admin.initialize_app()

Go

app, err := firebase.NewApp(context.Background(), nil)
if err != nil {
	log.Fatalf("error initializing app: %v\n", err)
}
init.go

C#

FirebaseApp.Create(new AppOptions()
{
    Credential = GoogleCredential.GetApplicationDefault(),
});

Node.js

const myRefreshToken = '...'; // Get refresh token from OAuth2 flow

initializeApp({
  credential: refreshToken(myRefreshToken),
  databaseURL: 'https://<DATABASE_NAME>.firebaseio.com'
});

Java

FileInputStream refreshToken = new FileInputStream("path/to/refreshToken.json");

FirebaseOptions options = FirebaseOptions.builder()
    .setCredentials(GoogleCredentials.fromStream(refreshToken))
    .setDatabaseUrl("https://<DATABASE_NAME>.firebaseio.com/")
    .build();

FirebaseApp.initializeApp(options);

Python

cred = credentials.RefreshToken('path/to/refreshToken.json')
default_app = firebase_admin.initialize_app(cred)

Go

opt := option.WithCredentialsFile("path/to/refreshToken.json")
config := &firebase.Config{ProjectID: "my-project-id"}
app, err := firebase.NewApp(context.Background(), config, opt)
if err != nil {
	log.Fatalf("error initializing app: %v\n", err)
}
init.go

C#

FirebaseApp.Create(new AppOptions()
{
    Credential = GoogleCredential.FromFile("path/to/refreshToken.json"),
});

Node.js

const app = initializeApp();

Java

FirebaseApp.initializeApp();

Python

default_app = firebase_admin.initialize_app()

Go

app, err := firebase.NewApp(context.Background(), nil)
if err != nil {
	log.Fatalf("error initializing app: %v\n", err)
}
init.go

C#

FirebaseApp.Create();

Node.js

// Initialize the default app
const defaultApp = initializeApp(defaultAppConfig);

console.log(defaultApp.name);  // '[DEFAULT]'

// Retrieve services via the defaultApp variable...
let defaultAuth = getAuth(defaultApp);
let defaultDatabase = getDatabase(defaultApp);

// ... or use the equivalent shorthand notation
defaultAuth = getAuth();
defaultDatabase = getDatabase();

Java

// Initialize the default app
FirebaseApp defaultApp = FirebaseApp.initializeApp(defaultOptions);

System.out.println(defaultApp.getName());  // "[DEFAULT]"

// Retrieve services by passing the defaultApp variable...
FirebaseAuth defaultAuth = FirebaseAuth.getInstance(defaultApp);
FirebaseDatabase defaultDatabase = FirebaseDatabase.getInstance(defaultApp);

// ... or use the equivalent shorthand notation
defaultAuth = FirebaseAuth.getInstance();
defaultDatabase = FirebaseDatabase.getInstance();

Python

# Import the Firebase service
from firebase_admin import auth

# Initialize the default app
default_app = firebase_admin.initialize_app(cred)
print(default_app.name)  # "[DEFAULT]"

# Retrieve services via the auth package...
# auth.create_custom_token(...)

Go

// Initialize default app
app, err := firebase.NewApp(context.Background(), nil)
if err != nil {
	log.Fatalf("error initializing app: %v\n", err)
}

// Access auth service from the default app
client, err := app.Auth(context.Background())
if err != nil {
	log.Fatalf("error getting Auth client: %v\n", err)
}
init.go

C#

// Initialize the default app
var defaultApp = FirebaseApp.Create(new AppOptions()
{
    Credential = GoogleCredential.GetApplicationDefault(),
});
Console.WriteLine(defaultApp.Name); // "[DEFAULT]"

// Retrieve services by passing the defaultApp variable...
var defaultAuth = FirebaseAuth.GetAuth(defaultApp);

// ... or use the equivalent shorthand notation
defaultAuth = FirebaseAuth.DefaultInstance;

Node.js

// Initialize the default app
initializeApp(defaultAppConfig);

// Initialize another app with a different config
var otherApp = initializeApp(otherAppConfig, 'other');

console.log(getApp().name);  // '[DEFAULT]'
console.log(otherApp.name);     // 'other'

// Use the shorthand notation to retrieve the default app's services
const defaultAuth = getAuth();
const defaultDatabase = getDatabase();

// Use the otherApp variable to retrieve the other app's services
const otherAuth = getAuth(otherApp);
const otherDatabase = getDatabase(otherApp);

Java

// Initialize the default app
FirebaseApp defaultApp = FirebaseApp.initializeApp(defaultOptions);

// Initialize another app with a different config
FirebaseApp otherApp = FirebaseApp.initializeApp(otherAppConfig, "other");

System.out.println(defaultApp.getName());  // "[DEFAULT]"
System.out.println(otherApp.getName());    // "other"

// Use the shorthand notation to retrieve the default app's services
FirebaseAuth defaultAuth = FirebaseAuth.getInstance();
FirebaseDatabase defaultDatabase = FirebaseDatabase.getInstance();

// Use the otherApp variable to retrieve the other app's services
FirebaseAuth otherAuth = FirebaseAuth.getInstance(otherApp);
FirebaseDatabase otherDatabase = FirebaseDatabase.getInstance(otherApp);

Python

# Initialize the default app
default_app = firebase_admin.initialize_app(cred)

#  Initialize another app with a different config
other_app = firebase_admin.initialize_app(cred, name='other')

print(default_app.name)    # "[DEFAULT]"
print(other_app.name)      # "other"

# Retrieve default services via the auth package...
# auth.create_custom_token(...)

# Use the `app` argument to retrieve the other app's services
# auth.create_custom_token(..., app=other_app)

Go

// Initialize the default app
defaultApp, err := firebase.NewApp(context.Background(), nil)
if err != nil {
	log.Fatalf("error initializing app: %v\n", err)
}

// Initialize another app with a different config
opt := option.WithCredentialsFile("service-account-other.json")
otherApp, err := firebase.NewApp(context.Background(), nil, opt)
if err != nil {
	log.Fatalf("error initializing app: %v\n", err)
}

// Access Auth service from default app
defaultClient, err := defaultApp.Auth(context.Background())
if err != nil {
	log.Fatalf("error getting Auth client: %v\n", err)
}

// Access auth service from other app
otherClient, err := otherApp.Auth(context.Background())
if err != nil {
	log.Fatalf("error getting Auth client: %v\n", err)
}
init.go

C#

// Initialize the default app
var defaultApp = FirebaseApp.Create(defaultOptions);

// Initialize another app with a different config
var otherApp = FirebaseApp.Create(otherAppConfig, "other");

Console.WriteLine(defaultApp.Name); // "[DEFAULT]"
Console.WriteLine(otherApp.Name); // "other"

// Use the shorthand notation to retrieve the default app's services
var defaultAuth = FirebaseAuth.DefaultInstance;

// Use the otherApp variable to retrieve the other app's services
var otherAuth = FirebaseAuth.GetAuth(otherApp);

gcloud

# Check the existing access scopes
gcloud compute instances describe [INSTANCE_NAME] --format json

# The above command returns the service account information. For example:
  "serviceAccounts": [
   {
    "email": "your.gserviceaccount.com",
    "scopes": [
     "https://www.googleapis.com/auth/cloud-platform",
     "https://www.googleapis.com/auth/userinfo.email"
     ]
    }
  ],

# Stop the VM, then run the following command, using the service account
# that gcloud returned when you checked the scopes.

gcloud compute instances set-service-account [INSTANCE_NAME] --service-account "your.gserviceaccount.com" --scopes "https://www.googleapis.com/auth/firebase.database,https://www.googleapis.com/auth/userinfo.email"

gcloud

gcloud auth application-default login --client-id-file=[/path/to/client/id/file]

Node.js

import { initializeApp, applicationDefault } from 'firebase-admin/app';

initializeApp({
  credential: applicationDefault(),
  projectId: '<FIREBASE_PROJECT_ID>',
});

Java

FirebaseOptions options = FirebaseOptions.builder()
    .setCredentials(GoogleCredentials.getApplicationDefault())
    .setProjectId("<FIREBASE_PROJECT_ID>")
    .build();

FirebaseApp.initializeApp(options);

Python

app_options = {'projectId': '<FIREBASE_PROJECT_ID>'}
default_app = firebase_admin.initialize_app(options=app_options)

Go

config := &firebase.Config{ProjectID: "<FIREBASE_PROJECT_ID>"}
app, err := firebase.NewApp(context.Background(), config)
if err != nil {
        log.Fatalf("error initializing app: %v\n", err)
}

C#

FirebaseApp.Create(new AppOptions()
{
    Credential = GoogleCredential.GetApplicationDefault(),
    ProjectId = "<FIREBASE_PROJECT_ID>",
});