Stratified design and functional architecture
summary
Shows a concrete claim: combining stratified design with pure functions produces the onion architecture and predictable rules like the spreading rule and “last action on the stack.” Uses JavaScript examples (send email, save user, affiliate payout, newsletter generation), refactorings (extracting calculations, generating emails up‑front, pagination for millions), and architecture names (ports and adapters, hexagonal, functional core/imperative shell). Demonstrates moving DB and side effects to an interaction layer so core logic is testable, reusable and decoupled.
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chapters (7)
- 0:00Introduction to concepts
- 1:33The fundamental distinction
- 8:03Managing actions
- 15:00Stratified design
- 24:05Onion architecture
- 27:36Addressing design questions
- 36:36Conclusion and Q&A
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