如何将firebase配额数据发送到web应用

<script src="https://www.gstatic.com/firebasejs/9.6.1/firebase-app.js"></script>
<script src="https://www.gstatic.com/firebasejs/9.6.1/firebase-analytics.js"></script>
<!-- 引入其他所需的 Firebase 模块，例如： -->
<!-- <script src="https://www.gstatic.com/firebasejs/9.6.1/firebase-auth.js"></script> -->
<!-- <script src="https://www.gstatic.com/firebasejs/9.6.1/firebase-firestore.js"></script> -->

// 替换为自己的 Firebase 项目配置信息
const firebaseConfig = {
  apiKey: "YOUR_API_KEY",
  authDomain: "YOUR_AUTH_DOMAIN",
  projectId: "YOUR_PROJECT_ID",
  storageBucket: "YOUR_STORAGE_BUCKET",
  messagingSenderId: "YOUR_MESSAGING_SENDER_ID",
  appId: "YOUR_APP_ID",
  measurementId: "YOUR_MEASUREMENT_ID"
};

// 初始化 Firebase 应用
firebase.initializeApp(firebaseConfig);

const database = firebase.database();
const ref = database.ref(".info/server");
ref.getUsage().then((usage) => {
  // 处理配额数据
  console.log(usage);
}).catch((error) => {
  console.error(error);
});

<div id="quota"></div>

const quotaElement = document.getElementById("quota");

// 在获取到配额数据后，更新页面上的元素
quotaElement.innerText = "配额使用情况：" + usage;