'Firebase Functions: Error: Client is offline

I just recently started using Firebase functions for the first time. When I was using Firebase Functions for Firestore, it worked fine but after I switched to Realtime, I've consistently been getting "Error: Client is offline".

enter image description here

It happens when I turn on node.js and run my application for the first time, and I .get() some data from the realtime database. enter image description here

When I click on the respective line at which the error exists, it shows me this. enter image description here

This is how I initialized firebase-admin:

admin.initializeApp({
  projectId: <project id>, 
  storageBucket: <bucket url>,
  credential: admin.credential.cert(serviceAccount),
  databaseURL: <db url>,
});

Is it because I have the FIREBASE_CONFIG and GCLOUD PROJECT environment variables are missing error? I've seen a lot of different posts that other people are getting the same issue, but I haven't come across a proper solution.

If anyone has any solutions or if you need more information, please let me know!

node.jsfirebasefirebase-realtime-databasegoogle-cloud-functions


Solution 1:[1]

I have a feeling you may be hitting a race condition in the JavaScript implementation of get(). If that is the case, you can work around it by using the once() method, which should work exactly the same in this scenario:

const _dataSnapshot = await admin.database().ref('users').child(req.body.user_uid).once();
...

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Frank van Puffelen

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