Redis Queue (RQ)

Redis Queue (RQ) is a Python task queue implementation that uses Redis to keep track of tasks in the queue that need to be executed.

RQ resources

• The RQ intro post contains information on design decisions and how to use RQ in your projects.

• International Space Station notifications with Python and Redis Queue (RQ) shows how to combine the RQ task queue library with Flask to send text message notifications every time a condition is met - in this blog post's case that the ISS is currently flying over your location on Earth.

• Asynchronous Tasks with Flask and Redis Queue looks at how to configure RQ to handle long-running tasks in a Flask app.

• Flask by Example - Implementing a Redis Task Queue explains how to install and use RQ in a Flask application.

• rq-dashboard is an awesome Flask-based dashboard for viewing queues, workers and other critical information when using RQ.

• Sending Confirmation Emails with Flask, Redis Queue, and Amazon SES shows how RQ fits into a real-world application that uses many libraries and third party APIs.

• Background Tasks in Python using Redis Queue gives a code example for web scraping data from the Goodreads website. Note that the first sentence in the post is not accurate: it's not the Python language that is linear, but instead the way workers in WSGI servers handle a single request at a time by blocking. Nevertheless, the example is a good one for understanding how RQ can execute.

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