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.