firebase.database 不是 function（节点 JS）

Question

Can someone teach me why it says firebase.database is not a function?

    const firebase = require('firebase/app')
    require('firebase/auth')
    require('firebase/database')
    var config = {
            ......
    };
    firebase.initializeApp(config);

    var database = firebase.database();

    console.log(database)

Answer 1

I've tried it with the npm module “firebase-admin”, now it works.