Firebase Realtime Database

This package implements connection to Firebase RTDB via WebSocket API in pure Dart.

Will work on all supported by Dart platforms, except Web.

Usage

Basically, it's just (incomplete) drop-in replacement for official package.

However, currently it doesn't handle auth and database url automatically.

You will have to init it first:

FirebaseDatabase.initialize(
    databaseURL: "https://example.firebasedatabase.app",
    auth: RtdbAuthAdapter(), // optional
);

Sample RtdbAuthAdapter:

import 'dart:async';

import 'package:firebase_auth/firebase_auth.dart';
import 'package:firebase_core/firebase_core.dart';
import 'package:firebase_rtdb/firebase_rtdb.dart';

class RtdbAuthAdapter implements AuthProvider {

  @override
  String get appId => Firebase.app().options.appId;

  @override
  FutureOr<String?>? getTokenFor(String databaseUrl) =>
    FirebaseAuth.instance.currentUser?.getIdToken();

  @override
  Stream<String?>? getTokensStreamFor(String databaseUrl) =>
    FirebaseAuth.instance
        .idTokenChanges()
        .asyncMap((e) => e?.getIdToken());

  @override
  bool get usesTokensStream => true;

}

Checklist

- [x] Get
- [x] Set
- [x] Listen single value (not object)
- [x] On disconnect set/remote
- [ ] Persistence
- [ ] Queries
- [ ] Everything else