CODEWITHSUNDEEP
reactjsfirebasegoogle-cloud-firestore
nilsqwertz
nilsqwertz

Reputation: 121

FieldValue is undefined

I'm using firestore in my react app. It is working without any problems when trying to get/create/update documents. However I am unable to access FieldValue which I need to update an array using arrayUnion. My firebase version used is 6.6.2.

Specifically this is the code I'm trying to get to work:

const locations = firebase.firestore.FieldValue.arrayUnion('location 1')
firebase.firestore().collection('config').doc('groups').update({ locations })

firebase.firestore() is working in the exact same file but firebase.firestore.FieldValue is undefined.

Upvotes: 2

Views: 3356

Answers (3)

nilsqwertz
nilsqwertz

Reputation: 121

The solution was to import FieldValue directly from the firebase package and NOT from the instantiated firebase app.

import firebase from 'firebase/app'

const arrayToUpdate = firebase.firestore.FieldValue.arrayUnion(value)

Upvotes: 8

Flignats
Flignats

Reputation: 1274

It does seem like an issue with the way you're importing firebase.

My app is initialized as:

admin.initializeApp(functions.config().firestore);

I have an arrayUnion when using it like this:

import * as admin from 'firebase-admin';
const firestoreAdmin = admin;
const firestoreInstance = admin.firestore();

// Example: admin.firestore.FieldValue.arrayUnion('entry-to-add'),

Upvotes: 0

Thingamajig
Thingamajig

Reputation: 4465

I believe since you are setting your initializeApp to app, you will instead want to use app.firestore.FieldValue;

Upvotes: 1

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