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NativeScript Firebase plugin

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Firebase

Features

Prerequisites

Head on over to https://console.firebase.google.com/ and sign up for a free account. Your first 'Firebase' will be automatically created and made available via an URL like https://n-plugin-test.firebaseio.com.

Open your Firebase project at the Google console and click 'Add app' to add an iOS and / or Android app. Follow the steps (make sure the bundle id is the same as your nativescript.id in package.json and you'll be able to download:

  • iOS: GoogleService-Info.plist which you'll add to your NativeScript project at app/App_Resources/iOS/GoogleService-Info.plist

  • Android: google-services.json which you'll add to your NativeScript project at app/App_Resources/Android/google-services.json

Installation

If you rather watch a (slightly outdated) video explaining the steps then check out this step-by-step guide - you'll also learn how to add iOS and Android support to the Firebase console and how to integrate anonymous authentication: YouTube demo

From the command prompt go to your app's root folder and execute:

tns plugin add nativescript-plugin-firebase

This will launch an install script which will guide you through installing additional components. Check the doc links above to see what's what. You can always change your choices later.

Config

If you choose to save your config during the installation, the supported options may be saved in the firebase.nativescript.json at the root of your app. This is to ensure your app may roundtrip source control and installation on CI won't prompt for user input during installation.

You can reconfigure the plugin by going to the node_modules/nativescript-plugin-firebase and running npm run config.

You can also change the configuration by deleting the firebase.nativescript.json and reinstalling the plugin.

Using Vue?

If you're using this template: vue-cli-template, then copy firebase.nativescript.json to the template folder. You could also symlink it: firebase.nativescript.json -> template/firebase.nativescript.json.

And also, require the plugin before Vue.start runs (probably in main.js), but run firebase.init() afterwards (although it may work before). You could wrap it in a timeout to make sure.

iOS (Cocoapods)

The Firebase iOS SDK is installed via Cocoapods, so run pod repo update from the command prompt (in any folder) to ensure you have the latest spec.

Google Play Services Version

The plugin will default to this version of the Android play-services-base SDK. If you need to change the version (to for instance the latest version), you can add a project ext property googlePlayServicesVersion to app/App_Resources/Android/app.gradle:

project.ext {
    googlePlayServicesVersion = "+"
}

Usage

Demo app

If you want a quickstart, clone the repo, cd src, and npm run demo.ios or npm run demo.android.

Start-up wiring

We need to do some wiring when your app starts, so open app.js and add this before application.start();:

JavaScript
var firebase = require("nativescript-plugin-firebase");

firebase.init({
  // Optionally pass in properties for database, authentication and cloud messaging,
  // see their respective docs.
}).then(
    function (instance) {
      console.log("firebase.init done");
    },
    function (error) {
      console.log("firebase.init error: " + error);
    }
);

TypeScript

const firebase = require("nativescript-plugin-firebase");

firebase.init({
  // Optionally pass in properties for database, authentication and cloud messaging,
  // see their respective docs.
}).then(
  instance => {
    console.log("firebase.init done");
  },
  error => {
    console.log(`firebase.init error: ${error}`);
  }
);

Known issues on iOS

Trouble running on the simulator

Open or create App_Resources/iOS/<appname>.entitlements and add these two keys with the value true:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>com.apple.keystore.access-keychain-keys</key>
    <true/>
    <key>com.apple.keystore.device</key>
    <true/>
</dict>
</plist>

Authentication failed: invalid_token

On the simulator you may see this message if you have more than one app with the Firebase SDK ever installed:

[FirebaseDatabase] Authentication failed: invalid_token (Invalid claim 'aud' in auth token.)
or
[FirebaseDatabase] Authentication failed: invalid_token (audience was project 'firegroceries-904d0' but should have been project 'your-firebase-project')

This is a known issue in the Firebase SDK. I always use a real device to avoid this problem, but you can pass an 'iOSEmulatorFlush' option to init.

firebase.init({
  // Optionally pass in properties for database, authentication and cloud messaging,
  // see their respective docs and 'iOSEmulatorFlush' to flush token before init.
  iOSEmulatorFlush: true
}).then()

Pod dependency error

If you see an error like Unable to satisfy the following requirements: Firebase (~> 3.17.0) required by Podfile, then run pod repo update on the command line to make sure you have the latest Podspec.

This could happen when updating the plugin to a new version. You'll want to tns platform remove ios && tns platform add ios as well to clean out the old pod version.

Known issues on Android

Genymotion

You can use the awesome Genymotion emulator but you'll need to install Google Play Services on it or you'll run into errors during authentication.

DexIndexOverflowException

com.android.dex.DexIndexOverflowException: method ID not in..

Congrats, you ran into this issue which can be solved by adding multiDexEnabled true to your app/App_Resources/Android/app.gradle so it becomes something like this:

android {  
  defaultConfig {  
    applicationId = "__PACKAGE__"  
    multiDexEnabled true
    generatedDensities = []
  }  
  aaptOptions {  
    additionalParameters "--no-version-vectors"  
  }  
}

java.lang.OutOfMemoryError: GC overhead limit exceeded

Increase the Java Max Heap Size like this (the bit at the end):

android {  
  defaultConfig {  
    applicationId = "__PACKAGE__"  
    multiDexEnabled true
    generatedDensities = []
  }
  aaptOptions {  
    additionalParameters "--no-version-vectors"  
  }
  dexOptions {
    javaMaxHeapSize "4g"
  }
}

FirebaseApp with name [DEFAULT] doesn't exist

Another possible error is "FirebaseApp with name [DEFAULT] doesn't exist." which will be solved by placing google-services.json to platforms/android/google-services.json (see above), and making the changes to build.gradle which are mentioned above as well.

Errors regarding API level 26.0.0

Update your local Android SDKs:

Just run $ANDROID_HOME/tools/bin/sdkmanager --update from a command prompt or launch the SDK manager from Android Studio, expand Extras and install any pending updates.

Found play-services:10.A.B, but version 11.X.Y is needed..

Update your Android bits like the issue above and reinstall the android platform in your project.

include.gradle: Failed to apply plugin .. For input string: "+"

You probably have another plugin depending on Google Play Services (Google Maps, perhaps). We need to pin to a specific play services version to play nice with others, so open app/App_Resources/Android/app.gradle and add:

android {  
  // other stuff here

  project.ext {
    googlePlayServicesVersion = "11.8.0"
  }
}

Where "11.8.0" is best set to the same value as the firebaseVersion value in this file.