Features

• Use as Kotlin extensions or static Java methods
• Loose API coupling (should be compatible with any version of Firebase)
• additional functions for copying, moving, and observing selective keys
• support for Android Firebase SDK and Server Firebase SDK

Usage

Firebase Queries (or DatabaseReferences)…

Kotlin extensions:

val query = FirebaseDatabase.getInstance().getReference("whatever")
//observe all changes to a Firebase query
val o = query.observeValue(Pojo::class.java)
//observe single change to a Firebase query
val o = query.observeValue(Pojo::class.java).take(1)
//observe set value
val o = query.setValue(new Pojo()).observeTask()
//observe all children of a Firebase query as a map
val o = query.observeChildMap(Pojo::class.java)
//observe children of a Firebase query that match a set of keys
val keys = listOf("one", "two", "five");
val o = query.observeChildMap(Pojo::class.java, keys);

Java:

Query query = FirebaseDatabase.getInstance().getReference("whatever");
//observe all changes to a Firebase query
Observable<Pojo> o = FirebaseRx.observeValue(query, Pojo.class);
//observe single change to a Firebase query
Observable<Pojo> o = FirebaseRx.observeValue(query, Pojo.class).take(1);
//observe set value
Observable<Void> o = FirebaseRx.observeSetValue(query, new Pojo());
//observe all children of a Firebase query as a map
Observable<Map<String, Pojo>> o = FirebaseRx.observeChildMap(query, Pojo.class);
//observe children of a Firebase query that match a set of keys
List<String> keys = Arrays.asList("one", "two", "five");
Observable<Map<String, Pojo>> o = FirebaseRx.observeChildMap(query, Pojo.class, keys);

Tasks (e.g. authentication calls)…

Kotlin extensions:

val auth = FirebaseAuth.getInstance();
//observe sign in anonymously
val o = auth.signInAnonymously().observeTask()
//observe sign in with credential
val o = auth.signInWithCredential(credential).observeTask();

Java:

FirebaseAuth auth = FirebaseAuth.getInstance();
//observe sign in anonymously
Observable<AuthResult> o = FirebaseRx.observeTask(auth.signInAnonymously());
//observe sign in with credential
Observable<AuthResult> o = FirebaseRx.observeTask(auth.signInWithCredential(credential));

Install

Add jitpack to your root build.gradle:

allprojects {
    repositories {
        maven { url 'https://jitpack.io' }
    }
}

Add dependency to your Android module build.gradle:

dependencies {
    compile ('com.github.toddway.FirebaseRx:android:X.X.X') {
        exclude group: 'com.google.firebase'
    }
}

or add dependency to your Java server module build.gradle:

dependencies {
    compile ('com.github.toddway.FirebaseRx:server:X.X.X') {
        exclude group: 'com.google.firebase'
    }
}

License

Copyright 2017-Present Todd Way
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
   http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.