Rails Service Object Patterns

Patterns for extracting and organizing business logic in Rails applications.

When This Skill Applies

• Extracting complex logic from controllers/models into service objects
• Implementing command/query separation patterns
• Handling multi-step business processes
• Designing result objects and error handling
• Organizing the app/services directory

Core Principles

Single Responsibility

Each service should do one thing well:

• Name services with verb + noun: CreateOrder, SendEmail, ProcessPayment
• Keep services focused and composable
• One public method (typically call or perform)