ActiveJob & Background Jobs
ActiveJob, Sidekiq, DelayedJob, job queues, perform_later, error handling, retry logic, GlobalID
1What is ActiveJob in Ruby on Rails?
What is ActiveJob in Ruby on Rails?
Jawaban
ActiveJob is a built-in Rails framework that provides a unified interface for declaring jobs and running them on various queuing backends like Sidekiq, Resque, or DelayedJob. It allows switching backends without modifying job code, offering a standardized abstraction for asynchronous background processing.
2Which method should be used to execute a job asynchronously in ActiveJob?
Which method should be used to execute a job asynchronously in ActiveJob?
Jawaban
The perform_later method enqueues the job for asynchronous execution by the configured queuing backend. The job is placed in a queue and will be processed later by a worker. Unlike perform_now which executes the job immediately and synchronously, perform_later frees the main thread and improves application responsiveness.
3What is the main difference between perform_later and perform_now in ActiveJob?
What is the main difference between perform_later and perform_now in ActiveJob?
Jawaban
perform_later enqueues the job in a queue for later asynchronous execution by a worker, while perform_now executes the job immediately and synchronously in the current process. perform_now is useful for testing or when immediate execution is required, but it blocks the calling thread until the job completes.
How to define the default queue for an ActiveJob job?
What is GlobalID and what is its role in ActiveJob?
+17 pertanyaan wawancara
Topik wawancara Ruby on Rails lainnya
Ruby Basics
Ruby Object-Oriented Programming
Rails Fundamentals
Routing & Controllers
ActiveRecord Basics
Views & ERB Templates
ActiveRecord Associations
Advanced ActiveRecord Queries
Rails Forms
Authentication & Authorization
Modern Asset Pipeline & Frontend
Rails API Mode
Testing with RSpec
ActionCable & WebSockets
ActionMailer
ActiveStorage
Caching Strategies
Advanced Migrations
Rails Engines & Modular Apps
Performance Optimization
Rails Design Patterns
Ruby Metaprogramming
Rails Security
GraphQL with Rails
Deployment & Production
Monitoring & Logging
Rails Upgrade Strategies
Kuasai Ruby on Rails untuk wawancara berikutnya
Akses semua pertanyaan, flashcards, tes teknis, latihan code review dan simulator wawancara.
Mulai gratis