Making Django REST Framework reactive
Project description
This package enables regular Django REST Framework views to become reactive, that is so that client-side applications may get notified of changes to the underlying data as soon as they happen, without the need to poll the API again. While the initial request is done as a regular HTTP request, all the update notifications come through WebSockets.
Install
Prerequisites
The reactive extensions for Django REST Framework require the use of Django Channels for push notifications via WebSockets.
From PyPI
pip install djangorestframework-reactiveFrom source
pip install https://github.com/genialis/django-rest-framework-reactive/archive/<git-tree-ish>.tar.gzwhere <git-tree-ish> can represent any commit SHA, branch name, tag name, etc. in DRF Reactive’s GitHub repository. For example, to install the latest version from the master branch, use:
pip install https://github.com/genialis/django-rest-framework-reactive/archive/master.tar.gzConfigure
First, add rest_framework_reactive to INSTALLED_APPS.
Configure your Django Channels routing.py to include the required paths:
from django.urls import path
from channels.routing import ChannelNameRouter, ProtocolTypeRouter, URLRouter
from rest_framework_reactive.consumers import ClientConsumer, MainConsumer, WorkerConsumer
from rest_framework_reactive.protocol import CHANNEL_MAIN, CHANNEL_WORKER
application = ProtocolTypeRouter({
# Client-facing consumers.
'websocket': URLRouter([
# To change the prefix, you can import ClientConsumer in your custom
# Channels routing definitions instead of using these defaults.
path('ws/<slug:subscriber_id>', ClientConsumer),
]),
# Background worker consumers.
'channel': ChannelNameRouter({
CHANNEL_MAIN: MainConsumer,
CHANNEL_WORKER: WorkerConsumer,
})
})Also, urls.py need to be updated to include some additional paths:
urlpatterns = [
# ...
url(r'^api/queryobserver/', include('rest_framework_reactive.api_urls')),
# ...
]Run
In addition to running a Django application server instance, you need to also run a separate observer worker process (or multiple of them). You may start it by running:
python manage.py runworker rest_framework_reactive.main rest_framework_reactive.workerRelease history Release notifications | RSS feed
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