Sidekiq Style Guide
This document outlines various guidelines that should be followed when adding or modifying Sidekiq workers.
All workers should include
ApplicationWorker instead of
which adds some convenience methods and automatically sets the queue based on
the worker's name.
Use of the "default" queue is not allowed. Every worker should use a queue that matches the worker's purpose the closest. For example, workers that are to be executed periodically should use the "cronjob" queue.
A list of all available queues can be found in
Most workers should use their own queue, which is automatically set based on the
worker class name. For a worker named
ProcessSomethingWorker, the queue name
process_something. If you're not sure what a worker's queue name is,
you can find it using
In some cases multiple workers do use the same queue. For example, the various
workers for updating CI pipelines all use the
pipeline queue. Adding workers
to existing queues should be done with care, as adding more workers can lead to
slow jobs blocking work (even for different jobs) on the shared queue.
Each Sidekiq worker must be tested using RSpec, just like any other class. These
tests should be placed in
Removing or renaming queues
Try to avoid renaming or removing queues in minor and patch releases. During online update instance can have pending jobs and removing the queue can lead to those jobs being stuck forever. If you can't write migration for those Sidekiq jobs, please consider doing rename or remove queue in major release only.