Presentation¶
Entry points and interaction boundaries¶
The Presentation block handles all incoming interactions.
It translates external inputs (HTTP, CLI, events) into calls to the Application block.
Purpose¶
- Provide entry points for users or systems.
- Parse and validate raw input.
- Convert input formats into application‑level data.
flowchart TD
USER[External Actor] --> PRES[Presentation]
PRES --> APP[Application]Typical Elements¶
HTTP / REST / GraphQL Handlers¶
Thin request handlers that delegate to Application.
CLI Commands¶
Command‑line entry points.
Message Listeners¶
Queue or event consumer adapters.
Characteristics¶
- May depend on frameworks.
- No business rules.
- Designed to remain thin and delegating.