Background Jobs in Rails

Background jobs allow you to perform time-consuming tasks outside of the main request-response cycle. This means your web application can remain responsive and quickly handle user requests, while the longer tasks are processed in the background. Rails achieves this using Active Job, a framework for declaring jobs and making them run on a variety of queuing backends like Sidekiq, Resque, or even a simple in-memory queue for development. This abstraction allows developers to write job logic once and easily switch between different background processing systems as needed.