初始化

时间:2019-02-18 19:57:05

标签: javascript node.js firebase

我试图连接到firebase数据库并创建一个用于消息传递的类,但是由于某种原因,在初始化fireabase应用程序时,我得到了ReferenceError: self is not defined

import app from "firebase/app";
import "firebase/messaging";

const options = {
    apiKey: process.env.FIREBASE_API_KEY,
    authDomain: process.env.FIREBASE_AUTH_DOMAIN,
    databaseURL: process.env.FIREBASE_DATABASE_URL,
    projectId: process.env.FIREBASE_PROJECT_ID,
    storageBucket: process.env.FIREBASE_STORAGE_BUCKET,
    messagingSenderId: process.env.FIREBASE_MESSAGING_SENDER_ID
};

class Firebase {
    constructor() {
        app.initializeApp(options);

        this.messaging = app.messaging();
    }
}

const FirebaseApp = new Firebase();

export default FirebaseApp;

完整错误如下:

/node_modules/@firebase/messaging/dist/index.cjs.js:2110
if (self && 'ServiceWorkerGlobalScope' in self) {
^
ReferenceError: self is not defined

如果我从this.messaging=...中删除了constructor(),那么错误就消失了。

0 个答案:

没有答案