UseCases.md

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---
title: Clean Architecture Ruby: Use Cases
---

Use Cases

Standard Directory: use_case/

Libraries

• Deject

Example

module AcmeIndustries
  module Widget
    module UseCase
      class WidgetsPerFooBarReport
        Deject self, :widget_gateway
        
        def execute(from_date:, to_date:) # receive a hash
           # widgets is a collection of Domain::Widget objects
           widgets = widget_gateway.all

           # secret sauce here
           
           {} # return a hash
        end
      end
    end
  end
end