Functional Programming and Domain Driven Design - a match in Heaven!
summary
Shows how Domain-Driven Design concepts are encoded as pure functions and types, with concrete examples in ReasonML and TypeScript. Implements Hexagonal Architecture, event sourcing and stateless services, models order/order-line invariants and email verification as types that reject invalid states, and wires external effects into pipelines that render pages for an online learning system. Claims reduced debugging and clearer boundaries; demoed code composes, runs, and keeps domain logic pure in practice.
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chapters (11)
- 0:00Introduction
- 4:04Domain Driven Design basics
- 10:18Functional programming benefits
- 16:10Domain modeling in practice
- 20:34Architecture and domain purity
- 27:29Functional domain architecture
- 33:26Pipelines and workflows
- 36:10Programming language trade-offs
- 40:14Modeling business concepts
- 45:01Tactical design examples
- 47:38Q&A
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