FCM using FirebaseMessagingService

[Przemek Lach]

Hi,

I built a firebase messaging enabled app in Android Studio and FirebaseInitProvider initializes successfully and I get my device token.

When I attempt to do the same thing using Bazel I get 'I/FirebaseInitProvider: FirebaseApp initialization unsuccessful' and not token. I'm using the same google-services.json file.

My build files is as follows:

android_binary(

   name = "FcmTestingApplication",

   srcs = glob(["*.java"]),

   manifest = "AndroidManifest.xml",

   manifest_values = {"applicationId": "com.mycompany.fcmtestingapplication"},

   resource_files = glob([

       "res/**/*.png",

       "res/**/*.jpg",

       "res/**/*.xml",

   ]),

   visibility = ["//visibility:public"],

   deps = [

       ":maven",

   ],

)

android_library(

   name = "maven",

   exports = [

       gmaven_artifact("com.android.support:appcompat:aar:v7.27.1.1"),

       gmaven_artifact("com.android.support:constraint-constraint-layout:aar:1.1.2"),

       gmaven_artifact("com.android.support:localbroadcastmanager:aar:28.0.0-alpha3"),

       gmaven_artifact("com.android.support:support.annotations:jar:27.1.1"),

       gmaven_artifact("com.google.android.gms:play-services-location:aar:15.0.1"),

       gmaven_artifact("com.google.firebase:firebase.messaging:aar:17.1.0"),

   ],

)

My manifest is as follows:

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

          package="com.mycompany.fcmtestingapplication"

          android:versionName="V1.0">

  <uses-sdk android:minSdkVersion="19" android:targetSdkVersion="27" />

  <uses-permission android:name="android.permission.INTERNET" />

  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

  <uses-permission android:name="android.permission.WAKE_LOCK" />

  <application

      android:allowBackup="false"

      android:icon="@mipmap/ic_launcher"

      android:label="@string/app_name"

      android:theme="@style/AppTheme"

      android:name="com.mycompany.fcmtestingapplication.FcmTestingApplicationApplication">

    <activity

        android:name=".LaunchActivity"

        android:screenOrientation="sensor"

        android:configChanges="orientation|screenSize" >

      <intent-filter>

        <action android:name="android.intent.action.MAIN" />

        <category android:name="android.intent.category.LAUNCHER" />

      </intent-filter>

    </activity>

    <service android:name=".FcmTestingApplicationFirebaseMessagingService">

            <intent-filter>

                <action android:name="com.google.firebase.MESSAGING_EVENT"/>

                <action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>

            </intent-filter>

        </service>

  </application>

</manifest>

And finally my service implemented:

package com.mycompany.fcmtestingapplication;

import android.util.Log;

import com.google.firebase.messaging.FirebaseMessagingService;

import com.google.firebase.messaging.RemoteMessage;

public class ApiIntegrationFirebaseMessagingService extends FirebaseMessagingService {

    @Override

    public void onMessageReceived(RemoteMessage remoteMessage) {

        super.onMessageReceived(remoteMessage);

        Log.e("##?", "RM from=" + remoteMessage.getFrom());

        Log.e("##?", "RM message_id=" + remoteMessage.getMessageId());

        for (String key : remoteMessage.getData().keySet()) {

            Log.e("##?", "RM data_key=" + key + " value=" + remoteMessage.getData().get(key));

        }

    }

    @Override

    public void onNewToken(String s) {

        // super.onNewToken(s);

        Log.e("##?", "token=" + s);

    }

}

I have a feeling this is some kind of authentication error. Any thoughts?

[Alex Humesky]

Is your integration with FCM / google services based on the example from this thread?

https://groups.google.com/d/topic/bazel-discuss/rizq2Es-Sjw/discussion

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[Alex Humesky]

(note also that we're reworking that example into a proper tool + rules hosted under https://github.com/bazelbuild/)

[Przemek Lach]

Hi Alex,

Yes it is but it has been so long I'm not sure that thread is applicable anymore. I'm also using the FirebaseMessagingService so that part is different as well.

[Alex Humesky]

The example should still basically work. I think the only difference today would be what deps the android_binary needs and how they're specified (basically what you're already doing with the android_binary you've listed).

I think what you can try is:

1. copy the gson dep from the WORKSPACE in the example

2. copy the tools directory

3. in your BUILD file add:

load("//tools/googleservices:defs.bzl", "google_services_xml")

GOOGLE_SERVICES_XML = google_services_xml(

    packageName = "com.example.myapplication",

    google_services_json = "google-services.json")

4. add the GOOGLE_SERVICES_XML to your resources:

resource_files = glob([

        "res/**/*.png",

        "res/**/*.jpg",

        "res/**/*.xml",

    ]) + GOOGLE_SERVICES_XML,

We're reworking this into something easier and cleaner to use, but the above should at least get it working. 

To view this discussion on the web visit https://groups.google.com/d/msgid/bazel-discuss/c8f44ec9-e578-4d56-8b16-c819c9c3738e%40googlegroups.com.

[Przemek Lach]

Hi Alex,

So that worked. I had also had to add android.permission.WAKE_LOCK for some reason to my manifest otherwise it would not give me a token.

[Alex Humesky]

Great, glad to hear it.

Regarding the permissions, there's probably a library in the dependencies somewhere that requires it to run. Bazel's android rules don't merge permissions from dependencies. More info about that is here: https://github.com/bazelbuild/bazel/issues/5411

To view this discussion on the web visit https://groups.google.com/d/msgid/bazel-discuss/28d1acdc-ad69-4fd8-b3df-860935c799f3%40googlegroups.com.

[Alex Humesky]

Hi all,

We pushed the tooling and examples here to the tools_android and examples repos so that it's easier to integrate with Google Services / FCM. See:

https://github.com/bazelbuild/tools_android

https://github.com/bazelbuild/examples/tree/master/android/firebase-cloud-messaging