Pushpull

A websocket to rabbitmq gateway

BETA

Makes it easy to talk to websocket clients using rabbitmq queues.

Websocket to message broker gateway for servers:

websocket client (browser) <---> pushpull gateway <----> message broker (rabbitmq) <---> your backend application
                                                                                     \
                                                                                      \-> the authenticator module

Includes some standard authenticator modules

Install

Requires python3.5+:

pip install pushpull

Test

1. install a rabbitmq server and a mongodb server
2. run tox

Usage

Run the websocket server:

pushpull-server

Run the CLI websocket client:

pushpull-client challenge_websocket http://localhost:8080/pushpull user_token

Run the CLI rabbitmq client:

pushpull-client challenge_amqp amqp://localhost/ user_id

Run the CLI rabbitmq authenticator:

pushpull-client authenticate_amqp amqp://localhost/ pushpull.auth.simple_file:main,user_db.txt

The user_db.txt is a text file with one entry per line:

user_id:username:user_token

Generating messages programmatically

To pass a message to a WebSocket client through RabbitMQ you can use pika Python module:

connection = pika.BlockingConnection()
channel = connection.channel()
channel.basic_publish(exchange='pushpull.ws',
                      # routing_key='pushpull.ws', # broadcast to all open WebSockets
                      routing_key=('pushpull.ws.%d' % user_id),
                      body='{"test": "Test"}')
connection.close()

Build docker image

install wheel:

pip install wheel

Build wheels for 3rd party and the project itself:

pip wheel -r requirements.txt -w wheelhouse
pip wheel . --no-deps -w wheelhouse-app
docker build -t pushpull .