使用Firebase密钥的firebase - Json

Firebase密钥是在Firebase项目中使用身份验证和授权功能时使用的一组凭据

Firebase JSON文件的结构如下：

{
  "type": "service_account",
  "project_id": "your-project-id",
  "private_key_id": "your-private-key-id",
  "private_key": "-----BEGIN PRIVATE KEY-----\nYOUR_PRIVATE_KEY\n-----END PRIVATE KEY-----",
  "client_email": "your-client-email@your-project-id.iam.gserviceaccount.com",
  "client_id": "your-client-id",
  "auth_uri": "https://accounts.google.com/o/oauth2/auth",
  "token_uri": "https://oauth2.googleapis.com/token",
  "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
  "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/your-client-email%40your-project-id.iam.gserviceaccount.com"
}

请确保用您自己的Firebase项目值替换占位符。这些值可以在Firebase控制台中找到。

一旦您下载了Firebase JSON文件，请按照以下步骤使用它：

Node.js

const admin = require('firebase-admin');

const serviceAccount = require('./path/to/firebase-key.json');

admin.initializeApp({
  credential: admin.credential.cert(serviceAccount),
  databaseURL: 'https://your-database-url.firebaseio.com'
});

Python

import firebase_admin
from firebase_admin import credentials

cred = credentials.Certificate('path/to/firebase-key.json')
firebase_admin.initialize_app(cred, {
    'databaseURL': 'https://your-database-url.firebaseio.com'
})

Java

import com.google.auth.oauth2.GoogleCredentials;
import com.google.firebase.FirebaseApp;
import com.google.firebase.FirebaseOptions;

// ...

GoogleCredentials credentials = GoogleCredentials.fromStream(new FileInputStream("path/to/firebase-key.json"));
FirebaseOptions options = new FirebaseOptions.Builder()
        .setCredentials(credentials)
        .setDatabaseUrl("https://your-database-url.firebaseio.com")
        .build();

FirebaseApp.initializeApp(options);

请确保将path/to/firebase-key.json替换为您下载的JSON文件的本地路径，并将your-database-url替换为您的实际数据库URL。

这样，您就可以使用Firebase密钥文件初始化Firebase Admin SDK，并访问Firebase数据库了。