(firebase-admin) Issue: Why is the client showing as offline when it's actually online?

import * as admin from "firebase-admin";
import DataModel from "../types/firebase";

export class FirebaseManager {
  db = admin.database();

  constructor() {
    this.db = admin.database();
    if (this.db === undefined) {
      throw "cannot find database";
    }

    let data = this.db
      .ref(`/`)
      .get()
      .then((snapshot) => {
        if (!snapshot.exists()) {
          throw "no database found :(";
        } else {
          let data = snapshot.val();
          try {
            let castedData = data as DataModel;
            console.log("Database successfully initialised!");
          } catch {
            throw "Data could not be casted properly during initialisation";
          }
        }
      });
  }
}

Hello there, I've been building a Discord bot that relies on Firebase for the backend. However, when initializing this class, an error occurs when calling the .get() function saying Error: Error: Client is offline. I know for a fact that I am online, so why is it showing this message? Just to give you context, I'm using version

"firebase-admin": "^9.11.1"
. If you would like to view all of the code, it's available at
https://github.com/MaxiGames/MaxiGames.js/tree/firebase
.

Answer №1

After some troubleshooting, we discovered that the issue stemmed from not following the instructions outlined in this tutorial

https://firebase.google.com/docs/admin/setup
. It was crucial to set an environment variable and use
admin.credential.applicationDefault()
as the credential parameter within the initializeApp function. Ultimately, the corrected code snippet should appear as follows:
admin.initializeApp({credential: admin.credential.applicationDefault(), databaseURL: "https://{your-project}-default-rtdb.firebaseio.com"});

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