| Sumario: | Using Sidekiq for background jobs is a great way to scale and grow your app. This book will give you a solid, practical foundation for creating resilient, well-tested, self-healing code that uses background jobs. You'll be able to simulate real-world failure modes and learn how to write idempotent code that can be safely run with Sidekiq. One of the best ways to improve your Rails app's performance is to use background jobs with Sidekiq. While Sidekiq is easy to get set up, you need to do more than just move code around to reap the benefits. In this book, you'll get solutions to what sort of code should go into a Sidekiq job and how to manage those jobs. You'll create a Sidekiq configuration that will serve as a solid foundation for your app, including how to be notified when jobs inevitably fail. You'll then tame alerting fatigue by designing idempotent jobs that can be safely retried in the face of the types of transient failures that are common in networked applications, all without alerting you until action is needed. With that foundation, you'll get a conceptual framework for general monitoring and alerting around your Sidekiq installation and the Redis database it uses, as well as practical tips for organizing the code around your Sidekiq jobs. You'll also learn valuable testing strategies for code that uses Sidekiq jobs.
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