Skip to main content

SwampDragon notifications

Project description

# SwampDragon notifications

[ ![Codeship Status for jonashagstedt/swampdragon-notifications](](

Notify your users in real time.

**Note** Since notifications isn't always an essential part of a system, only signed in users receive notifications.

# Prerequisites

* Redis 2.8+

# Installation

pip install swampdragon-notifications

Add the following to `INSTALLED_APPS`:


Set the SwampDragon connection to:

SWAMP_DRAGON_CONNECTION = ('swampdragon_notifications.notification_connection.Connection', '/data')

# Setup

{% load swampdragon_tags static %}
<!-- Swamp dragon -->
{% swampdragon_settings %}
<script type="text/javascript" src="{% static 'swampdragon/js/dist/swampdragon.min.js' %}"></script>

<!-- Swamp dragon notifications -->
<script type="text/javascript" src="{% static 'js/dist/swampdragon-notifications.js' %}"></script>

# JavaScript API

## Get number of users online:

notifications.onlineCount(function (count) {

## User count onChange event:

Triggered when a new user comes online or someone goes offline

notifications.onlineCountChange(function (count) {

## Desktop notifications

To enable desktop notifications: `notifications.enableDesktopNotifications();`.

To disable desktop notifications: `notifications.disableDesktopNotifications();`.

To trigger a desktop notifications:

var payload = {
icon: notification.icon // assuming an icon url is available,
tag: 'foo'
notifications.desktopNotification('New foo', payload);

# Example setup (

The following example setup will send both email notifications and realtime notifications.
To disable the email notifications: remove `'swampdragon_notifications.backends.email_notifications.EmailNotification'` from `SWAMP_DRAGON_NOTIFICATION_BACKENDS`.

('realtime', 'swampdragon_notifications.backends.realtime_notifications.RealtimeNotification'),
('email', 'swampdragon_notifications.backends.email_notifications.EmailNotification'),

'foo': {
'processor': 'app.subject_renderer.foo_to_dict',
'icon': '',
'subject': 'A new foo',
'template': 'new_foo_notification',

SWAMP_DRAGON_HEARTBEAT_FREQUENCY = 1000 * 60 * 5 # Five minutes

Create a file called in your project, and add a new function:

def foo_to_dict(notification, **kwargs):
return {

The function `foo_to_dict` should return a dictionary with any data you want to pass on to the client.

## Subject processors

A subject processor belongs to a notification type (defined in `SWAMP_DRAGON_NOTIFICATIONS`).

The processor is a function, and takes a `notification` and `**kwargs` as arguments, and returns a dictionary.

Example processor:

def foo_processor(notification, **kwargs):
return {
'timestamp': now(),
'extra_value': kwargs.get('extra_value')

## Settings

Enable heart beat if you are using realtime notifications.
This helps keep track on who is online.

SWAMP_DRAGON_HEARTBEAT_FREQUENCY = 1000 * 60 * 5 # Five minutes


To customise notification, add `SWAMP_DRAGON_NOTIFICATIONS` to settings.
This is a dictionary:

'foo': {
'processor': 'app.subject_renderer.foo_to_dict'
'template': 'standard_email', # Only used by email backend,
'subject': 'Dear {}, you have a new notification', # Only used by email backend
'title': 'Notification',
'icon': ''

`template` and `subject` only concern the default email backend.

### Notification backends

There are two notification backends: email and realtime.

Set notification backends:

('realtime', 'swampdragon_notifications.backends.realtime_notifications.RealtimeNotification'),
('email', 'swampdragon_notifications.backends.email_notifications.EmailNotification'),

`'swampdragon_notifications.backends.realtime_notifications.RealtimeNotification'` is enabled by default.

### Email notification backend

The emails will, by default, be sent from `settings.SERVER_EMAIL`.
To change the sender email address specify `NOTIFICATION_SENDER` in settings.

#### Creating a custom notification backend

Add a new file to your project ``.

Add a class `FooNotificationBackend`

implement the function `def notify(notification):` in your custom notification backend

from swampdragon_notifications.backends.base_backend import BaseBackend

class FooNotificationBackend(BaseBackend):
def notify(self, notification):

3. Add the new backend to your settings

('foo', 'myproj.foo_notification_backend.FooNotificationBackend'),

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Filename, size & hash SHA256 hash help File type Python version Upload date
swampdragon-notifications- (14.5 kB) Copy SHA256 hash SHA256 Source None (28.6 kB) Copy SHA256 hash SHA256 Source None

Supported by

Elastic Elastic Search Pingdom Pingdom Monitoring Google Google BigQuery Sentry Sentry Error logging AWS AWS Cloud computing DataDog DataDog Monitoring Fastly Fastly CDN SignalFx SignalFx Supporter DigiCert DigiCert EV certificate StatusPage StatusPage Status page