webstompy 0.1.4

A simple Python STOMP implementation with WebSocket support

webstompy

This is webstompy, your friendly Python STOMP interface with WebSocket support. Currently, it supports version 1.1 of the STOMP specification.

Note: webstompy may not be feature-complete or respect the STOMP specification in full detail. It merely suffices our requirements. In case you observe non-standard behavior or missing functionality, feel free to leave an issue in the tracker or provide a pull request.

webstompy is aimed at simplicity of usage.

Documentation

• 💾 Code repository
• 🔍 This README file contains some basic documentation for installation and development.
• 📚 Project documentation
• 🐛 For bug reports and feature requests use the issue tracker

Usage

Assuming you have a local RabbitMQ server with the Web STOMP Plugin running on port 15674 (see below how to set this up), the following example should work and produce a visible result:

from websocket import create_connection
import webstompy

class MyListener(webstompy.StompListener):
    def on_message(self, frame):
        print('Listener caught this frame: ', frame.payload)

ws_echo = create_connection('ws://127.0.0.1:15674/stomp/websocket')

connection = webstompy.StompConnection(connector=ws_echo)
connection.add_listener(MyListener())
connection.connect(login='guest', passcode='guest')
connection.send(destination='/topic/test', message='hello queue a')
connection.subscribe(destination='/topic/test', id='0')
connection.send(destination='/topic/test', message='hello queue b')

Logging

webstompy supports logging via the Python standard logging module. By default, it will just print the log levels WARINING and ERROR. You can control webstompy's logging in your app via

import logging
logging.getLogger("webstompy").setLevel(logging.CRITICAL)

Setup a local RabbitMQ demo

The above usage example can be realized using a RabbitMQ server with the Web STOMP Plugin. RabbitMQ acts as a broker, the example above in the end speaks with itself.

Install RabbitMQ with activated Web STOMP Plugin

Luckily, there is beevelop/rabbitmq-stomp, a Docker image for RabbitMQ with support for STOMP. Install it and run the RabbitMQ server:

docker pull beevelop/rabbitmq-stomp
docker run -d --name rabbit-stomp -p 15674:15674 beevelop/rabbitmq-stomp

Your RabbitMQ server WebSocket will listen on port 15674 and be available via http://127.0.0.1:15674/stomp.

License

MIT License, Copyright (c) 2020 Point 8 GmbH