Web Application Architecture in Haskell

on YouTube ↗20m

" summary

Flora.pm is a real Haskell web app on GitHub that encodes business rules in the type system and runs in production, using a clear DTO/DAO/domain translation to map rich Haskell types to JSON and PostgreSQL storage. Boundaries are explicit: web/core/jobs services, config from env (12‑factor), and separation of read vs write query pools with read replicas. The code uses GHC extensions and property testing (QuickCheck) for confidence; the architecture is implemented and working.

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" chapters (5)

1. 0:00Start
2. 1:51Syntax primer
3. 2:57Haskell - Pure, Functional Programming
4. 8:28Bounded Contexts
5. 14:21Separating Commands & Queries

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