GeezerVison

A set of tools for building reliable services of any complexity.

See servactory.com for comprehensive documentation, including:

• Detailed guides for all features
• Advanced configuration options
• Best practices and patterns
• Migration guides
• API reference

Building reliable services shouldn't be complicated. Servactory provides a battle-tested framework for creating service objects with:

• 🛡️ Type Safety - Enforce types on inputs and outputs, catch errors early
• ✅ Built-in Validation - Rich validation DSL with custom rules
• 🧪 Test-Friendly - RSpec matchers and service mocking helpers
• 📊 Structured Output - Consistent Result object pattern
• 🔧 Highly Configurable - Extensions, helpers, and custom options
• 📚 Well Documented - Comprehensive guides and examples

gem "servactory"

class Users::Authenticate < Servactory::Base
  input :email, type: String
  input :password, type: String

  output :user, type: User

  make :authenticate!

  private

  def authenticate!
    if (user = User.authenticate_by(email: inputs.email, password: inputs.password)).present?
      outputs.user = user
    else
      fail!(message: "Authentication failed", meta: { email: inputs.email })
    end
  end
end

class SessionsController < ApplicationController
  def create
    service = Users::Authenticate.call(**session_params)

    if service.success?
      session[:current_user_id] = service.user.id
      redirect_to service.user
    else
      flash.now[:alert] = service.error.message
      render :new, status: :unprocessable_entity
    end
  end

  private

  def session_params
    params.require(:session).permit(:email, :password)
  end
end

• Stroma — A foundation for building modular, extensible DSLs in Ruby
• OpenTelemetry Instrumentation — Automatic tracing of service calls and actions with span attributes and failure detection

We love contributions! Check out our Contributing Guide to get started.

Ways to contribute:

• 🐛 Report bugs and issues
• 💡 Suggest new features
• 📝 Improve documentation
• 🧪 Add test cases
• 🔧 Submit pull requests

Special thanks to all our contributors!

Servactory is available as open source under the terms of the MIT License.