Help ionic local storage to cloud!

Im creating ionic project with basic crud function using local storage.
I want to upload my data in the cloud when there is an internet connection.
But if there will be no internet connection I can still used it offline.
But how can I upload my data from ionic app to cloud or firebase
I need advice

First maybe do some small tutorials with Firebase to get a better understanding.

After it you can do very easy your request.

for network feedback you can do like that:

import {Network} from '@ionic-native/network';
 this.Network.onConnect().subscribe(() => {
      // connected

    this.Network.onDisconnect().subscribe(() => {
// disconnected

wow thanks this will be a huge help for me