How to use firebase database?

Nazar Kvartalnyi
Written by
COO at Inoxoft, former .Net Software Engineer
Pub: Jul 28, 2021Upd: Feb 05, 2022

The Firebase Database is a cloud-hosted database. Data is stored as JSON and synchronized in real-time to every connected client. When you build cross-platform apps (iOS, Android, and JavaScript SDKs), all of your clients share one Realtime Database instance and automatically receive updates.



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Key features:

  1. Real-time: the firebase database uses data synchronization so everyone could receive the newest data changes within seconds.
  2. Offline: the firebase apps are responsive even offline due to firebase database SDKs which persist data to a disk. When the connection is strong again all the data is being synchronized to view the latest changes.
  3. Accessibility: the firebase database can be accessed directly from a mobile device or a web browser. So, there is no basic need for the application server.
  4. Security: both security and data validation can be accessed through the firebase database security rules, which are executed every time the data is being read or written.
  5. Scale: support the needs of your app’s data by splitting data across multiple database instances in the same Firebase project.
  6. Authentication: use Firebase Authentication on the project and authenticate users across the database instances. Control, who can access your data in every database with Firebase Database Rules for each database instance.

How does Firebase Database work?

With the help of the Firebase Database you can build rich, collaborative apps with secure database access directly from the client-side code. Data is persisted locally, and when offline, events continue working in a responsive way. When the device is reconnected, the Database synchronizes the local data changes with the remote updates that occurred offline.

The Database has a flexible, expression-based rules language, called Firebase Database Security Rules, that defines how your data should be structured and when data can be read from or written to. When integrated with Firebase Authentication, developers can define who has access to what data, and how they can access it.

The Realtime Database is a NoSQL database. The Realtime Database API is designed to only allow operations that can be executed quickly. This enables you to build a great real-time experience that can serve millions of users without compromising on responsiveness.

How to use firebase database?

 

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