Kyanite Kyanite -4 years ago 268
AngularJS Question

Get current user in angular using firebase?

Currently trying to build an app using ionic v2 & firebase v3.
Unfortunately I'm struggling to simply grab hold of the logged in user's details.

In my app.ts, I connect correctly to my firebaseapp and the logged in user is recognised and the user is shown the homepage:

import {Component} from '@angular/core';
import {Platform, ionicBootstrap, NavController} from 'ionic-angular';
import {StatusBar} from 'ionic-native';
import {HomePage} from './pages/home/home';
declare var firebase:any;
import {Data} from './providers/data/data';
import {LoginPage} from './pages/login/login';

template: '<ion-nav [root]="rootPage"></ion-nav>',
providers: [Data]
export class MyApp {
rootPage: any = LoginPage;

constructor(platform: Platform) {
platform.ready().then(() => {
// Okay, so the platform is ready and our plugins are available.
// Here you can do any higher level native things you might need.

// Initialize Firebase
var config = {
apiKey: "xxxx",
authDomain: "",
databaseURL: "",
storageBucket: "",


firebase.auth().onAuthStateChanged((user) => {
if (user) {
// If there is a user, take him to home page.
console.log("User is logged in!");
this.rootPage = HomePage;
} else {
// If there is no user logged in, send to login page.
this.rootPage = LoginPage;


Then in another of my files where I wish to retrieve the logged in user's ID using

var authData = firebase.auth().currentUser();

I get the following error in my console:

EXCEPTION: Error: Uncaught (in promise): EXCEPTION: Error in :0:0
ORIGINAL EXCEPTION: TypeError: firebase.auth(...).currentUser is not a function
TypeError: firebase.auth(...).currentUser is not a function
at new AddItemPage (http://localhost:8100/build/js/app.bundle.js:97:40)
at DebugAppView._View_AddItemPage_Host0.createInternal (AddItemPage_Host.template.js:20:27)
at DebugAppView.AppView.create (http://localhost:8100/build/js/app.bundle.js:30016:21)
at DebugAppView.create (http://localhost:8100/build/js/app.bundle.js:30228:44)
at ComponentFactory.create (http://localhost:8100/build/js/app.bundle.js:29245:36)
at ViewContainerRef_.createComponent (http://localhost:8100/build/js/app.bundle.js:30436:45)
at http://localhost:8100/build/js/app.bundle.js:53117:47
at ZoneDelegate.invoke (http://localhost:8100/build/js/zone.js:323:29)
at Object.onInvoke (http://localhost:8100/build/js/app.bundle.js:35470:41)
at ZoneDelegate.invoke (http://localhost:8100/build/js/zone.js:322:35)
[object Object]

I'm confused as to why currentUser() is not a function, when the documentation says it is?


Answer Source

the documentation says that

firebase.auth().currentUser NOT firebase.auth().currentUser() is the correct way to get the user

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