Saving Data on Android

Key points
• To use Firebase Realtime Database in your Android project you need to go through 
the 
configuration
 process first.
• The Realtime Database provides 
database rules
 to control access for each user.
• Firebase Authentication is very much connected to database solutions Firebase 
offers, since it controls the 
access to data
, on a 
per-user-basis
.
• Firebase Realtime Database stores data in 
JSON format
.
• Because the structure is a JSON, it operates with simple data like numbers, strings, 
objects, booleans and lists.
• Firebase Realtime Database data structure should be as 
flat
 as possible and 
designed with 
scaling
 in mind.
Where to go from here?
In this chapter, you saw how to configure Realtime Database and what are best 
practices when it comes to structuring your data. If you want to learn more you can 
check out official Firebase documentation.
You also wrote your first data to the database. In