# Orders ### What it is responsible for Orders manages order-related creation flow through `OrdersController` and its `create` member, with `OrdersModule` serving as an entry point. The subsystem names `Order` and `CreateOrderDto` alongside `OrdersService`, indicating that creation work is associated with those symbols. `OrderCreatedEvent` and `OrderCreatedListener` identify an event and listener within the same area, while the supplied evidence does not state their runtime behavior. ### What it needs, and who needs it The repository evidence names no dependencies for Orders. `Sample` depends on this subsystem; without Orders, that dependent side loses its declared dependency. Work can enter through `OrdersController`, `create`, and `OrdersModule`, so removal also leaves those named entry points unavailable. The available evidence does not specify any external system, library, or subsystem that Orders requires, nor behavior its absence would directly break. 8 entities in `sample/30-event-emitter/src/orders`. **1 other subsystem depends on it**, which makes it the 8th most depended-upon part of this codebase. ## What it is made of Its 8 entities sit in 7 files under `sample/30-event-emitter/src/orders`: 4 classes, 1 controller, 1 HTTP endpoint, 1 module and 1 more. `orders.controller.ts` holds 2 of them — more than any other file here. ## Where work enters 1 controller publishes 1 `POST` endpoint. It answers under `/orders`. None of them declares a guard. - `OrdersController` — `sample/30-event-emitter/src/orders/orders.controller.ts`:5 - `create` — `sample/30-event-emitter/src/orders/orders.controller.ts`:9 - `OrdersModule` — `sample/30-event-emitter/src/orders/orders.module.ts`:6 ## Boundaries **1 other subsystem depends on this one** — `Sample`. Changing what it exposes changes them. They hold 1 edge into it between them. What they reach is narrower than the folder: 1 of its 8 members carries every inbound edge — `OrdersModule` (1). **It depends on no other subsystem in this repository** — it is a leaf.