Why is Firebase asynchronous?

The Firebase Realtime Database is a cloud-hosted NoSQL database that lets you store and sync data between your users in realtime.

Transactional data is used when you need to return some data from the database then make some calculation with it and store it back . Let us say we have one player inside our player list. We want to retrieve property, add one year of age and return it back to Firebase.

Using the Cloud Firestore client libraries, you can group multiple operations into a single transaction . Transactions are useful when you want to update a field’s value based on its current value, or the value of some other field.11 Kas 2021

Firebase APIs are sensitive to the performance of your app’s main thread . This means that any Firebase API that needs to deal with data on disk or network is implemented in an asynchronous style. The functions will return immediately , so you can call them on the main thread without worrying about performance.