Skip to main content
This is a pre-production deployment of Warehouse. Changes made here affect the production instance of PyPI (pypi.python.org).
Help us improve Python packaging - Donate today!

SwampDragon notifications

Project Description
# SwampDragon notifications

[ ![Codeship Status for jonashagstedt/swampdragon-notifications](https://codeship.com/projects/fc0d69b0-9763-0132-b800-6a66c6b56914/status?branch=master)](https://codeship.com/projects/63149)

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`:

INSTALLED_APPS = [
...
'swampdragon',
'swampdragon_auth',
'swampdragon_notifications',
]


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) {
console.log(count);
});


## User count onChange event:

Triggered when a new user comes online or someone goes offline


notifications.onlineCountChange(function (count) {
setUserCount(count);
});


## Desktop notifications

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

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

To trigger a desktop notifications:


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



# Example setup (settings.py)

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`.


SWAMP_DRAGON_NOTIFICATION_BACKENDS = [
('realtime', 'swampdragon_notifications.backends.realtime_notifications.RealtimeNotification'),
('email', 'swampdragon_notifications.backends.email_notifications.EmailNotification'),
]


SWAMP_DRAGON_NOTIFICATIONS = {
'foo': {
'processor': 'app.subject_renderer.foo_to_dict',
'icon': 'http://placekitten.com/g/64/64',
'subject': 'A new foo',
'template': 'new_foo_notification',
}
}

SWAMP_DRAGON_HEARTBEAT_ENABLED = True
SWAMP_DRAGON_HEARTBEAT_FREQUENCY = 1000 * 60 * 5 # Five minutes


Create a file called subject_renderer.py 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 {
'foo_id': notification.subject.pk,
'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_ENABLED = True
SWAMP_DRAGON_HEARTBEAT_FREQUENCY = 1000 * 60 * 5 # Five minutes


### `SWAMP_DRAGON_NOTIFICATIONS`

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


SWAMP_DRAGON_NOTIFICATIONS = {
'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': 'http://placekitten.com/g/64/64'
}
}

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


### Notification backends

There are two notification backends: email and realtime.

Set notification backends:


SWAMP_DRAGON_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 `foo_notification_backend.py`.

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):
pass


3. Add the new backend to your settings


SWAMP_DRAGON_NOTIFICATION_BACKENDS = [
...
('foo', 'myproj.foo_notification_backend.FooNotificationBackend'),
]
Release History

Release History

This version
History Node

0.1.3.2

History Node

0.1.3.1

History Node

0.1.3

History Node

0.1.2

History Node

0.1.1.1

History Node

0.1.1

History Node

0.1.0

Download Files

Download Files

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

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
swampdragon-notifications-0.1.3.2.tar.gz (14.5 kB) Copy SHA256 Checksum SHA256 Source Oct 19, 2015
swampdragon-notifications-0.1.3.2.zip (28.6 kB) Copy SHA256 Checksum SHA256 Source Oct 19, 2015

Supported By

WebFaction WebFaction Technical Writing Elastic Elastic Search Pingdom Pingdom Monitoring Dyn Dyn DNS Sentry Sentry Error Logging CloudAMQP CloudAMQP RabbitMQ Heroku Heroku PaaS Kabu Creative Kabu Creative UX & Design Fastly Fastly CDN DigiCert DigiCert EV Certificate Rackspace Rackspace Cloud Servers DreamHost DreamHost Log Hosting