`deleteApp` hangs indefinitely when auth and firestore are initialized

[kaisermann]

Operating System

MacOS Sonoma 14.1.1

Browser Version

n/a

Firebase SDK Version

10.6.0

Firebase SDK Product:

Firestore

Describe your project's tooling

The minimal repro contains only the js SDK in the latest version. Tested in node@16 @18 and @20.

Describe the problem

Calling deleteApp for an app initialized with both firestore/auth hangs indefinitely. I encountered this while trying to connect both to the emulator, but the issue seems to happen without calling the connect{...}Emulator functions.

However, if some operation is called to the firestore instance, the app seems to be deleted as expected.

Steps and code to reproduce issue

Stackblitz repro

Create a repro.mjs file with:

import { deleteApp, initializeApp } from 'firebase/app';
import { initializeAuth } from 'firebase/auth';
import { initializeFirestore, doc, getDoc } from 'firebase/firestore';

const testApp = initializeApp({
  apiKey: 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx',
  projectId: 'some-project-id',
});

// Comment these two lines and the app will delete successfully
const testFirestore = initializeFirestore(testApp, {
  ignoreUndefinedProperties: true,
});

// Or comment these two lines and the app will delete successfully
const testAuth = initializeAuth(testApp);

async function reproIssue() {
  console.log('Deleting app...');

  // Uncomment this getDoc call and the deleteApp works with both firestore/auth
  // await getDoc(doc(testFirestore, 'users/alice'), { name: 'Alice' }).catch(
  //   () => {
  //     /** ignore errors */
  //   }
  // );

  // This hangs indefinitely when both firestore and auth are initialized
  // This DOES NOT hand if only firestore or auth is initialized
  // Or if the getDoc call above is not commented.
  await deleteApp(testApp);
  console.log('App deleted'); // This is never reached
}

await reproIssue();

2. Run node repro.mjs

3. Deleting app... should be logged but App deleted not.

4. Comment either the testFirestore or testAuth initialization and run the file again..

5. Both Deleting app... and App deleted should be logged.

6. Now add an operation to firestore, i.e a getDoc, right before the deleteApp:

  await getDoc(doc(testFirestore, 'users/alice'), { name: 'Alice' }).catch(
    () => {}
  );

8. Run the file again with both auth/firestore initialized.

9. Both Deleting app... and App deleted should be logged.

[milaGGL]

Hi @kaisermann, thank you for reporting this issue. I am able to reproduce the error with the provided code. I will start looking into the issue.

[tappin-kr]

Hi @kaisermann, thank you for reporting this issue. I am able to reproduce the error with the provided code. I will start looking into the issue.

Any update on this issue? I see the PR was closed, not merged.

[milaGGL]

Hi @tappin-kr, that PR only solves the problem by ignoring a promises that we should have waited for, and high likely will introduce other errors. The main problem actually exists in a node library, which explains why this only happens in Node.

Internally pinged another team to debug the issue.