rails-service-object

Define business logic in service objects with a #call method and Result object.

Updated Mar 19, 2026
One-click install
npx skills add https://github.com/reckerswartz/resume_builder --skill rails-service-object-reckerswartz
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: rails-service-object
Source: https://github.com/reckerswartz/resume_builder/tree/main/.windsurf/skills/rails-service-object
Command: npx skills add https://github.com/reckerswartz/resume_builder --skill rails-service-object-reckerswartz

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Service objects encapsulate business logic, keeping controllers slim, testable, and focused on orchestration.

Core Features & Use Cases

  • Enforces a single responsibility per service with a public #call method.
  • Easy to test in isolation and reusable across controllers, jobs, and rake tasks.
  • Supports dependency injection, clear input/output contracts, and consistent error handling.
  • Avoids putting business logic in controllers and helps compose complex operations or interactors.

Quick Start

Create a service under app/services/ with a namespaced folder (e.g., orders/create_service.rb), implement the #call method, and wire dependencies for testability.

Frequently Asked Questions about rails-service-object

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I move complex business logic out of Rails controllers?▼

Use service objects to encapsulate complex business logic, keeping Rails controllers slim, testable, and focused on orchestration rather than workflow implementation.

What is a service object in Ruby on Rails?▼

A service object is a Ruby class placed under app/services that enforces single responsibility, exposes one public #call method, and returns a standardized Result object for consistent contracts.

How do I structure a Rails service object for multi-model interactions?▼

Create a namespaced folder under app/services, implement the #call method for multi-model interactions, wire dependencies via injection, and return a standardized Result object.

Can I use dependency injection in Rails service objects for testing?▼

Yes, service objects support dependency injection to make business logic easy to test in isolation and reusable across controllers, jobs, and rake tasks without external coupling.

When should I use a service object instead of a Rails controller method?▼

Use service objects for complex workflows, multi-model interactions, and background tasks where inputs need validation and consistent error handling outside controller orchestration.

What is the best way to handle errors in Rails service objects?▼

Return a standardized Result object from the #call method to enforce consistent error handling and clear output contracts across all service objects in your Rails application.