firebase function with realtime database error

Question

I am new to firebase function and trying to use firebase function with Realtime database (Emulator suite).But when i try to set the value in firebase using the firebase function,it gives an error and doesn't set the value in database.

Error:

17:33:14
I
function[us-central1-textToLength]
[2021-11-05T12:03:14.194Z]  @firebase/database: FIREBASE WARNING: wss:// URL used, but browser isn't known to support websockets.  Trying anyway. 
17:34:18
I
function[us-central1-textToLength]
[2021-11-05T12:04:18.762Z]  @firebase/database: FIREBASE WARNING: wss:// URL used, but browser isn't known to support websockets.  Trying anyway. 
17:35:06
I
function[us-central1-textToLength]
[2021-11-05T12:05:06.473Z]  @firebase/database: FIREBASE WARNING: wss:// URL used, but browser isn't known to support websockets.  Trying anyway. 
17:35:54
I
function[us-central1-textToLength]
[2021-11-05T12:05:54.409Z]  @firebase/database: FIREBASE WARNING: wss:// URL used, but browser isn't known to support websockets.  Trying anyway. 

firebase function code :

const functions = require('firebase-functions');
var admin = require("firebase-admin");
admin.initializeApp(); 

var database = admin.database();

exports.helloWorld = functions.https.onRequest((request, response) => {
    response.send("Hello from Firebase!");
});

exports.textToLength = functions.https.onRequest((request, response) => {
    var tex = request.query.text;
    var textLength = tex.length;
    console.log(textLength);
    database.ref().child('test').set("op");
    response.send(String(textLength));
});

dependencies :

{
  "name": "functions",
  "description": "Cloud Functions for Firebase",
  "scripts": {
    "serve": "firebase emulators:start --only functions",
    "shell": "firebase functions:shell",
    "start": "npm run shell",
    "deploy": "firebase deploy --only functions",
    "logs": "firebase functions:log"
  },
  "engines": {
    "node": "14"
  },
  "main": "index.js",
  "dependencies": {
    "firebase-admin": "^9.8.0",
    "firebase-functions": "^3.14.1",
    "@firebase/database-compat": "0.1.2" 
  },
  "devDependencies": {
    "firebase-functions-test": "^0.2.0"
  },
  "private": true
}

npm installed packages

+-- @firebase/[email protected]
| +-- @firebase/[email protected]
| | +-- @firebase/[email protected]
| | | +-- @firebase/[email protected] deduped
| | | `-- [email protected] deduped
| | +-- @firebase/[email protected]
| | | `-- [email protected] deduped
| | +-- @firebase/[email protected]
| | | `-- [email protected] deduped
| | `-- [email protected] deduped
| +-- @firebase/[email protected]
| | +-- @firebase/[email protected] deduped
| | `-- [email protected] deduped
| +-- @firebase/[email protected]
| | `-- [email protected] deduped
| +-- @firebase/[email protected]
| | `-- [email protected] deduped
| `-- [email protected]
+-- @firebase/[email protected]
| +-- @firebase/[email protected]
| | +-- @firebase/[email protected] deduped
| | `-- [email protected] deduped
| +-- @firebase/[email protected]
| | +-- @firebase/[email protected]
| | +-- @firebase/[email protected] deduped
| | +-- @firebase/[email protected] deduped
| | +-- @firebase/[email protected] deduped
| | +-- [email protected]
| | | `-- [email protected]
| | |   +-- [email protected]
| | |   +-- [email protected] deduped
| | |   `-- [email protected]
| | `-- [email protected] deduped
| +-- @firebase/[email protected]
| | +-- @firebase/[email protected]
| | `-- @firebase/[email protected] deduped
| +-- @firebase/[email protected]
| | `-- [email protected] deduped
| +-- @firebase/[email protected]
| | `-- [email protected] deduped
| `-- [email protected] deduped
`-- [email protected]
  +-- @firebase/[email protected] deduped
  +-- @firebase/[email protected]
  | `-- @firebase/[email protected]
  +-- @google-cloud/[email protected]
  | +-- [email protected]
  | +-- [email protected]
  | +-- [email protected]

Answer 1

In the meantime, if you are on the latest Admin SDK version, you can pin @firebase/database-compat to version 0.1.2 in your package.json file as a temporary fix.

"dependencies": { "@firebase/database-compat": "0.1.2" }

This works for me.

Ref: https://github.com/firebase/firebase-admin-node/issues/1487

Answer 2

In the meantime, if you are on the latest Admin SDK version, you can pin @firebase/database-compat to version 0.1.2 in your package.json file as a temporary fix.

"dependencies": { "@firebase/database-compat": "0.1.2" }

This works for me.

Ref: https://github.com/firebase/firebase-admin-node/issues/1487

I referred this example and it worked but for this to work rebuild your package-lock.json file by removing node_modules folder and package_lock.json file and running npm install --package-lock-only

Answer 3

Yes, definitely known issue currently they are working on a fix like Kasirajan suggested https://github.com/firebase/firebase-admin-node/issues/1487#issuecomment-962219551. This fix worked for us. Wanted to upvote his comment but my reputation is still low haha but I can verify that works.