Example of Firebase v9 database functions vs Firebase v8

firebase8.ts

import firebase from "firebase/app";
import "firebase/database";

export const onceValue = <T>(path: string): Promise<Nullable<T>> =>
  firebase
    .database()
    .ref(path)
    .once("value")
    .then((snap) => snap.val());
export const firebaseUpdate = (path: string, updateObj: Object) => firebase.database().ref(path).update(updateObj);
export const firebasePush = (path: string, object?: Object) => firebase.database().ref(path).push(object).key;
export const firebaseSet = (path: string, object: Object | string | number | boolean | null) =>
  firebase.database().ref(path).set(object);
export const firebaseDelete = (path: string) => firebase.database().ref(path).remove();

firebase9.ts

import {
  getDatabase,
  ref,
  get,
  update,
  set,
  push,
  remove,
} from "firebase/database";

const getRef = (path: string) => ref(getDatabase(), path);

export const onceValue = <T>(path: string): Promise<T | null> => get(getRef(path)).then((snap) => snap.val());
export const firebaseUpdate = (path: string, updateObj: Object) => update(getRef(path), updateObj);
export const firebasePush = (path: string, object?: Object) => push(getRef(path), object).key;
export const firebaseSet = (path: string, object: Object | string | number | boolean | null) =>
  set(getRef(path), object);
export const firebaseDelete = (path: string) => remove(getRef(path));