InvalidRegistration error in Firebase Cloud Messaging for Android

Question

I am developing an Android application using the Push Notification feature. I need to click from the server. I am using Firebase for this. Honestly, this is my first experience using Firebase. I am new to Firebase. But when I click from the server using PHP and CURL, this leads to an incorrect registration error.

I get a Firebase token in Android like this

String token = FirebaseInstanceId.getInstance().getToken();

Then I save sending this token to the server and saved to the database.

On the server, I click like this

class Pusher extends REST_Controller {

    function __construct()
    {
        parent::__construct();
    }

    public function notification_get()
    {
        $rows = $this->db->get('device_registration')->result();
        $tokens= array();
        if(count($rows)>0)
        {
            foreach($rows as $row)
            {
                $tokens[] = $row->token;
            }
        }
        $message = array("message"=>"FCM PUSH NOTIFICATION TESTING");
        if(count($tokens)>0)
        {
            $result = $this->send_notification($tokens,$message);
            if(!$result)
            {
                die("Unable to send");
            }
            else{
                $this->response($result, REST_Controller::HTTP_OK);
            }
        }

    }

    function send_notification($tokens,$message)
    {
        $url = 'https://fcm.googleapis.com/fcm/send';
        $fields = array(
                'registration_ids'=>$tokens,
                'data'=>$message
            );

        $headers = array(
                'Authorization:key = AIzaSyApyfgXsNQ3dFTGWR6ns_9pttr694VDe5M',//Server key from firebase
                'Content-Type: application/json'
            );
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($fields));
        $result = curl_exec($ch);
        if($result==FALSE)
        {
            return FALSE;
        }
        curl_close($ch);
        return $result;
    }
}

I am using CodeIgniter 3 to create a Rest API. When I click access to the URL from the browser, it returns the JSON data with an error, as shown in the following screenshot.

, InvalidRegistration, . ?

FirebaseMessagingService, android

public class FirebaseMessagingService extends com.google.firebase.messaging.FirebaseMessagingService {

    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        super.onMessageReceived(remoteMessage);
        showNotification(remoteMessage.getData().get("message"));
    }

    private void showNotification(String message)
    {
        Intent i = new Intent(this,MainActivity.class);
        i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

        PendingIntent pendingIntent = PendingIntent.getActivity(this,0,i,PendingIntent.FLAG_UPDATE_CURRENT);

        NotificationCompat.Builder builder = new NotificationCompat.Builder(this).setAutoCancel(true)
                .setContentTitle("FCM Test")
                .setContentText(message)
                .setSmallIcon(R.drawable.info)
                .setContentIntent(pendingIntent);

        NotificationManager manager = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
        manager.notify(0,builder.build());
    }
}

Answer 1

. , com.google.firebase.INSTANCE_ID_EVENT . , InvalidRegistration.

, , , onTokenRefresh. , , FirebaseInstanceId.getInstance().getToken()

, , , google doc it self...

@Override
public void onMessageReceived(RemoteMessage remoteMessage) {

    // TODO(developer): Handle FCM messages here.
    Log.d(TAG, "From: " + remoteMessage.getFrom());

    // Check if message contains a data payload.
    if (remoteMessage.getData().size() > 0) {
        Log.d(TAG, "Message data payload: " + remoteMessage.getData());
    }

    // Check if message contains a notification payload.
    if (remoteMessage.getNotification() != null) {
        Log.d(TAG, "Message Notification Body: " + remoteMessage.getNotification().getBody());
    }

    // Also if you intend on generating your own notifications as a result of a received FCM
    // message, here is where that should be initiated. See sendNotification method below.
}

Firebase :

. . , . , onMessageReceived() didReceiveRemoteNotification. , , , "".

. Android . onMessageReceived(). : On Android, , .

. , , . . -, click_action , . "-", .

Answer 2

codeigniter InvalidRegistration iOS, , , .

registration_ids PHP Notification message , , .

:

'registration_ids'=>$tokens,

:

'to'=>$tokens[0],