Send push notifications to mobile devices & browsers through FCM in Django.


Keywords
django, django-rest-framework, fcm, fcm-notifications, firebase-cloud-messaging, push-notifications
License
MIT
Install
pip install fcm-django==0.3.4

Documentation

fcm-django

https://en.cryptobadges.io/badge/small/3GHRdxw64kYKbG2RXZNtKveMPpSzMy7CLR

Django app for Firebase Cloud Messaging. Used as an unified platform for sending push notifications to mobile devices & browsers (android / ios / chrome / firefox / ...).

FCMDevice model fields
  • registration_id (required - is FCM token)
  • name (optional)
  • active (default: true)
  • user (optional)
  • device_id (optional - can be used to uniquely identify devices)
  • type ('android', 'web', 'ios')
Functionality:
  • all necessary migrations
  • model admins for django admin
  • admin actions for testing single and bulk notification sending
  • automatic device pruning: devices to which notifications fail to send are marked as inactive
  • devices marked as inactive will not be sent notifications
  • Django rest framework viewsets

Setup

You can install the library directly from pypi using pip:

$ pip install fcm-django

Edit your settings.py file:

INSTALLED_APPS = (
        ...
        "fcm_django"
)

FCM_DJANGO_SETTINGS = {
        "APP_VERBOSE_NAME": "[string for AppConfig's verbose_name]",
         # default: _('FCM Django')
        "FCM_SERVER_KEY": "[your api key]",
         # true if you want to have only one active device per registered user at a time
         # default: False
        "ONE_DEVICE_PER_USER": True/False,
         # devices to which notifications cannot be sent,
         # are deleted upon receiving error response from FCM
         # default: False
        "DELETE_INACTIVE_DEVICES": True/False,
}

Native Django migrations are in use. manage.py migrate will install and migrate all models.

Messages

You can read more about different types of messages here.

In short, there are two types: notifications and data messages.

Notification:

{
    "to" : "bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1...",
    "notification" : {
      "body" : "great match!",
      "title" : "Portugal vs. Denmark",
      "icon" : "myicon"
    }
}

Data message:

{
   "to" : "bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1...",
   "data" : {
     "Nick" : "Mario",
     "body" : "great match!",
     "Room" : "PortugalVSDenmark"
   },
}

As in the following example, you can send either a notification, a data message, or both.

Sending messages

For a list of possible parameters see https://firebase.google.com/docs/cloud-messaging/http-server-ref#notification-payload-support

from fcm_django.models import FCMDevice

device = FCMDevice.objects.all().first()

device.send_message("Title", "Message")
device.send_message(data={"test": "test"})
device.send_message(title="Title", body="Message", icon=..., data={"test": "test"})

Sending messages in bulk

from fcm_django.models import FCMDevice

devices = FCMDevice.objects.all()

devices.send_message(title="Title", body="Message")
devices.send_message(title="Title", body="Message", data={"test": "test"})
devices.send_message(data={"test": "test"})

Sending messages to topic

from fcm_django.fcm import fcm_send_topic_message

fcm_send_topic_message(topic_name='My topic', message_body='Hello', message_title='A message')

Using multiple FCM server keys

By default the message will be sent using the FCM server key specified in the settings.py. This default key can be overridden by specifying a key when calling send_message. This can be used to send messages using different firebase projects.

from fcm_django.models import FCMDevice

device = FCMDevice.objects.all().first()
device.send_message(title="Title", body="Message", api_key="[project 1 api key]")
device.send_message(title="Title", body="Message", api_key="[project 2 api key]")

Django REST Framework (DRF) support

Viewsets come in two different varieties:

  • FCMDeviceViewSet

    • Permissions as specified in settings (AllowAny by default, which is not recommended)
    • A device may be registered without associating it with a user
    • Will not allow duplicate registration_id's
  • FCMDeviceAuthorizedViewSet

    • Permissions are IsAuthenticated and custom permission IsOwner, which will only allow the request.user to get and update devices that belong to that user
    • Requires a user to be authenticated, so all devices will be associated with a user
    • Will allow duplicate registration_id's for different users, so you are responsible for cleanup (if that is generally perceived as undesired behaviour or if the package itself should be doing the cleanup, open an issue or email me)

Routes can be added one of two ways:

http://www.django-rest-framework.org/tutorial/6-viewsets-and-routers#using-routers

from fcm_django.api.rest_framework import FCMDeviceAuthorizedViewSet

from rest_framework.routers import DefaultRouter

router = DefaultRouter()

router.register(r'devices', FCMDeviceAuthorizedViewSet)

urlpatterns = patterns('',
        # URLs will show up at <api_root>/devices
        # DRF browsable API which lists all available endpoints
        url(r'^', include(router.urls)),
        # ...
)
  • Using as_view_ (specify which views to include)

http://www.django-rest-framework.org/tutorial/6-viewsets-and-routers#binding-viewsets-to-urls-explicitly

from fcm_django.api.rest_framework import FCMDeviceAuthorizedViewSet

urlpatterns = patterns('',
        # Only allow creation of devices by authenticated users
        url(r'^devices?$', FCMDeviceAuthorizedViewSet.as_view({'post': 'create'}), name='create_fcm_device'),
        # ...
)

Demo project for implementation of web push notifications

Demonstrates the use of service workers: https://github.com/xtrinch/fcm-django-web-demo

Python 3 support

fcm-django is fully compatible with Python 2.7 & 3.4 & 3.5 & 3.6 & 3.7

Django version compatibility

Compatible with Django versions 1.8+. For lower django versions, use fcm-django version 0.3.2 and below.

Acknowledgements

Library relies on pyFCM for sending notifications, for more info about all the possible fields, see: https://github.com/olucurious/PyFCM

Need help, have any questions, suggestions?

Submit an issue/PR or email me at mojca.rojko@gmail.com