redqlite 1.2.0

A lightweight Messaging queue implementation using Redis for producer-worker-subscriber messaging.

RedQLite

A lightweight Messaging queue implementation using Redis for producer-worker-subscriber messaging.

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Features

• Redis-backed message queuing
• Producer and worker interface
• Producer and subscriber interface
• Lightweight and fast alternative to Kafka/Celery
• Works for long running tasks
• Provides configurable heartbeats from inside worker callback functions
• Redis server required
• Minimal setup — no broker required

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Installation

pip install redqlite

How It Works

This package simulates a basic messaging system using Redis lists. It includes:

A Producer that pushes messages to a Redis queue or broadcasts messages to all subscribers.

A Worker that consumes messages from the queue and processes them.

A Worker Pool to run concurrent workers.

A Subscriber that consumes messages from channel specific message queue.

Usage

Example: Producing a Message

# Import RQProducer class
from redqlite.producer import RQProducer

# Create a producer instance
rqproducer = RQProducer(host="localhost", port=6379)

# Send a message
rqproducer.send(topic="yourtopicname", message="hello world")

# Broadcast message on a channel
rqproducer.broadcast(channel="yourchannelname", message="hello world")

Example: Starting a Worker

# Import RQWorker class
from redqlite.worker import RQWorker

def callback_func(msg, **kwargs):
	print(msg)

# Create a worker instance
## Provide your redis connection details or Redis connection pool object
rqworker = RQWorker(host="localhost", port=6379, topic="yourtopicname", callback=callback_func)

# Start worker thread
rqworker.start()

Example: Starting a Worker Pool

# Import RQWorkerPool class
from redqlite.worker import RQWorkerPool

def callback_func(msg, **kwargs):
	print(msg)

# Create a worker pool
## Provide your redis connection details or Redis connection pool object
rqworker_pool = RQWorkerPool(host="localhost", port=6379, topic="yourtopicname", callback=callback_func, num_workers=2)

# Start worker pool
rqworker_pool.start()

Example: Starting a subscriber

# Import QSubscriber class
from redqlite.subscriber import RQSubscriber
from redis import Redis

def callback_func(msg, **kwargs):
	print(msg)

# Create a worker instance
rqsubscriber = RQSubscriber(redis_conn=Redis(), channel="yourchannelname", callback=callback_func)

# Start subscriber thread
rqsubscriber.start()

License

This project is licensed under the MIT License - see the LICENSE file for details.

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you’d like to change.

Contact

Feel free to reach out by opening an issue or by contacting the author.