Got error while initializing Firebase configuration in expo react native. Unexpected token ";"
Enviroment:
Expo development
React native
firebase
visual studio code editor
What I want:
I am new , learning how to authenticate /login in react native application using firebase email/password method.
What I did:
In the code editor tool--> app.js--> I imported the firebase , created a const to define the firebase config parameters.
After that, I tried to initialize firebase .
What is the issue:
When I ran the app on my phone , the following error occurred.
SyntaxError: C:\Users\Jituni\bholmentorworld\App.js: Unexpected token, expected ";" (32:23)
30 | };
31 |
32 | firebase.initializeApp{firebaseConfig};
| ^
33 |
34 | export default class App extends React.Component{
35 |
[import React from "react";
import { Image, Button, TextInput, ScrollView, Stylesheet, Text, View } from "react-native";
import * as firebase from 'firebase';
const firebaseConfig={
apiKey:"AIzaSyDimdV7iWkVaLKpQVqt82_TiSuRA0NBAOE",
authDomain:"firebaseapp",
databaseURL:"mentordunia",
projectId:"mentordunia",
storageBucket:"",
messagingSenderId:"1055433782606",
appId:"b308d4b9d990db06",
};
firebase.initializeApp{firebaseConfig};
export default class App extends React.Component{
render() {
return <AppContainer/>;
}
};][1]
Expected result:
Should not receive error to initialize firebase
Actual result:
Error in initialing firebase
I recommend using a linter to catch any possible error, I personally use eslint with vs code.
firebase.initializeApp{firebaseConfig}; should be firebase.initializeApp(firebaseConfig);
Related
src\firebaseConnection.js
Line 17:17: 'initializeApp' is not defined no-undef
Search for the keywords to learn more about each error.
webpack compiled with 1 error and 1 warning
enter image description here
You should import like this:
import { initializeApp } from "firebase/app";
const firebaseConfig = {...};
const app = initializeApp(firebaseConfig);
You may want to visit this documentation and learn how to use Firebase Services such as Firestore.
In my React Native project I'm migrating react-native-firebase from version 5 to version 6 using this guide. In the Specific Module Installation section it says to import the functions module using #react-native-firebase/functions and then to import them with import functions from '#react-native-firebase/functions';. However, when I try to update this code:
import * as functions from 'firebase-functions';
import { FeedModel } from '../../../models/feed.model';
export const onFeedCreate = functions.firestore
.document('promos/{uid}')
.onCreate( async (
snapshot,
context
) => {
const promo = snapshot.data() as FeedModel;
console.log(promo);
});
by replacing the first line with #react-native-firebase/functions';, then the term firestore on the third line is underlined in red and says Property 'firestore' does not exist on type 'FirebaseModuleWithStaticsAndApp<Module, Statics>'.
How should I change my imports in order to run this function?
I used Google Analytics a lot for many sites...
I'm just releasing a first app with Firebase (Firestore + Firebase SDK with reactjs).
Then, I activated GA from my Firebase dashboard... but I cannot see any activity !
I probably need not to add plugin like "autotrack" ?
import 'autotrack';
ga('create', 'UA-XXXXX-Y', 'auto');
It's not clear because, it's impossible to find out the track ID (UA-XXXXX-Y) from my dashboard !
Do I really need it ? Where can I find it ?
I did't correctly initialized Analytics...
With firebase it's not a track ID but a measurementId
import app from 'firebase/app';
import 'firebase/analytics';
app.initializeApp({
//other config
measurementId : process.env.REACT_APP_MEASUREMENT_ID,
appId : process.env.REACT_APP_DEV_ID
})
//put inside your constructor
app.analytics()
This will solve the following error:
Error: firebase__WEBPACK_IMPORTED_MODULE_8___default.a.analytics is
not a function react
Documentation : https://firebase.google.com/docs/analytics/get-started?platform=web
The previous answer should be corrected like this:
import app from 'firebase/app';
import 'firebase/analytics';
app.initializeApp({
//other config
measurementId : process.env.REACT_APP_MEASUREMENT_ID,
appId : process.env.REACT_APP_DEV_ID
})
//put inside your constructor
app.analytics()
This will solve the following error:
Error: firebase__WEBPACK_IMPORTED_MODULE_8___default.a.analytics is
not a function react
My issue was the same as listed above:
Error: firebase__WEBPACK_IMPORTED_MODULE_8___default.a.analytics is not a function react
But the resolution was that I forgot to import the analytics module: import 'firebase/analytics';
If you are using Typescript:
// On index.tsx
import { initializeApp } from 'firebase/app';
import { initializeAnalytics } from 'firebase/analytics';
const firebaseConfig = {
... your config object ...
};
const app = initializeApp(firebaseConfig);
initializeAnalytics(app);
Firebase gone through a lot of new updates. Change imports like this;
import firebase from 'firebase/compat/app';
import 'firebase/compat/auth';
import 'firebase/compat/firestore';
import 'firebase/compat/analytics';
I am working in an Ember.js app and currently trying to connect to firebase (is not my default adapter, the default is a Rest adapter). I followed the instructions given in https://github.com/firebase/emberfire but when I try to read data from the database I get:
Error while processing route: my.routingFile firebase.app is not a function getApp
In brief, this is my routing file:
import AuthenticatedRouteMixin from 'ember-simple-auth/mixins/authenticated-route-mixin';
import RouteMixin from 'ember-cli-pagination/remote/route-mixin';
import Ember from 'ember';
import RealtimeRouteMixin from 'emberfire/mixins/realtime-route';
export default Ember.Route.extend(AuthenticatedRouteMixin,RouteMixin, RealtimeRouteMixin, {
firebaseApp: Ember.inject.service(),
model(params) {
return this.store.findAll('myModel');
},
setupController(){
this._super(...arguments);
},
actions:{
}
});
And, my adapter is defined as follows:
import RealtimeDatabaseAdapter from 'emberfire/adapters/realtime-database';
export default RealtimeDatabaseAdapter.extend({
databaseURL: 'https://my-url.firebaseio.com/'
});
My ember-cli version is: 3.0.2
Then, what am I missing?
I'm surprised that it's not working. Your code looks fine to me. Did you define the environment variables for Firebase in config/environment.js?
Background: I have started using react-native-firebase with react-native to integrate with Cloud Firestore. I'm going to start bringing redux into my test application.
Question - Is react-native-firebase ok to continue with as my choice of libraries here? (versus migrating to react-redux-firebase)
Is there an easy way to sum up the difference between the two libraries re when you would you one versus the other? I note with react-native-firebase the installation is quite involved for IOS and Android, so I'm not sure whether react-redux-firebase makes this easier, but if it does do you lose anything in mix?
Main difference:
react-redux-firebase - for using Firebase with Redux
react-native-firebase - for using Firebase JS API with react-native
react-redux-firebase actually supports using react-native-firebase. react-native-firebase provides the Firebase JS API while using native-modules under the hood, meaning you can provide that as your Firebase instance to react-redux-firebase like so:
import { compose, createStore } from 'redux';
import RNFirebase from 'react-native-firebase';
import { getFirebase, reactReduxFirebase } from 'react-redux-firebase';
import thunk from 'redux-thunk';
import makeRootReducer from './reducers';
const reactNativeFirebaseConfig = {
debug: true
};
const reduxFirebaseConfig = {
userProfile: 'users', // save users profiles to 'users' collection
};
export default (initialState = { firebase: {} }) => {
// initialize firebase
const firebase = RNFirebase.initializeApp(reactNativeFirebaseConfig);
const store = createStore(
makeRootReducer(),
initialState,
compose(
reactReduxFirebase(firebase, reduxFirebaseConfig), // pass initialized react-native-firebase app instance
// applyMiddleware can be placed here
)
);
return store;
};
This setup and more is covered in the react-native recipes section of the docs.
Disclaimer: I am one of the authors of react-redux-firebase
react-redux-firebase is helper library for firebase.
I recommended using both react-native-firebase and react-redux-firebase.
react-native-firebase is easy to write, easy to read, easy to understand.
You don't need react-redux-firebase for the small application.
react-native-firebase is awesome.
If you are familiar with firebase, You can use react-native-firebase in 10 minutes.
For example
import Firebase from "react-native-firebase"
....
<Button title="button" onPress={Firebase.analytics().logEvent("pressed")} />