Can we retrieve data from Firebase?

If you open your app from Firebase dashboard, you can add data manually by clicking on the + sign .

Go to the Firebase Console, select your project and click on the Database tab. Scroll down and you will find a Realtime Database section. Click on Create database, select the Start in test mode option and then click Enable.

Firebase data is retrieved by either a one time call to GetValueAsync() or attaching to an event on a FirebaseDatabase reference . The event listener is called once for the initial state of the data and again anytime the data changes.