如何正确使用Firebase Admin SDK为web应用程序使用Node.js？

npm install firebase-admin

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

const serviceAccount = require('path/to/serviceAccountKey.json');

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

admin.auth().createUser({
  email: 'user@example.com',
  emailVerified: false,
  password: 'password',
  displayName: 'John Doe',
  photoURL: 'http://www.example.com/12345678/photo.png',
  disabled: false
})
  .then((userRecord) => {
    // 新用户创建成功
    console.log('Successfully created new user:', userRecord.uid);
  })
  .catch((error) => {
    console.log('Error creating new user:', error);
  });

const db = admin.database();
const ref = db.ref('path/to/data');

ref.once('value')
  .then((snapshot) => {
    const data = snapshot.val();
    console.log('Data:', data);
  })
  .catch((error) => {
    console.log('Error reading data:', error);
  });

const bucket = admin.storage().bucket();

const file = bucket.file('path/to/file.txt');

file.createWriteStream()
  .on('error', (error) => {
    console.log('Error uploading file:', error);
  })
  .on('finish', () => {
    console.log('File uploaded successfully.');
  })
  .end('Hello, World!');