Real-World Functional Ruby

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" summary

Demonstrates a practical functional Ruby stack: model behavior as verbs — small functional objects with a call method that are immutable and receive dependencies via constructor injection; model data as immutable value objects typed with dry-types/dry-struct; wrap outcomes in consistent result objects and handle them with dry-monads/dry-matcher; wire hundreds of objects with dry-system and dry-auto_inject; persist via ROM; test by passing doubles into functions. Claims 10+ apps shipped over two years by teams of 2–3, and a workshop builds a blog end-to-end.

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" chapters (6)

1. 0:00Introduction and welcome
2. 4:43The design stamina hypothesis
3. 11:03Functional objects in Ruby
4. 17:55Real-world functional Ruby
5. 27:49Building apps with dry-rb
6. 33:05Q&A on functional Ruby

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