I'm building a React Native app with Expo and integrating Firebase (real time database) which I know has some limitations (https://docs.expo.dev/guides/using-firebase/). I'm trying to get a snapshot of the data using await get(query(... and have successfully done so, but I can't figure out exactly what I'm working with. When I console.log it I get this:

Object {
  "key1": value1,
  "key2": value2,
}

I was trying to return an array of the keys using Object.keys() but it returns this:

Array [
  "_node",
  "ref",
  "_index",
]

This doesn't line up with the examples of Object.keys() I'm seeing on the internet which makes me think this isn't a JSON object like I thought it was. I've tried poking around a good bit with some other stuff but can't figure it out. The problem is, when I use typeof on the object, it simply returns 'object' which is a little too vague for me to take to the google machine.

The following is a representation of my code. Thanks for your help.

import { initializeApp } from 'firebase/app';
import { get, getDatabase, query, ref } from 'firebase/database';

const firebaseConfig = {
    databaseURL: '<myURL>',
    projectId: '<myID>',
};
const app = initializeApp(firebaseConfig);

export default async function myFunction() {
    const db = getDatabase(app);
    const readReference = ref(db, '/<I am only reading a piece of the data>')
    const existingData = await get(query(readReference))
    const dataKeys = Object.keys(existingData)
    console.log(dataKeys)
    console.log(existingData)
    console.log(typeof existingData)
}