# Component diagram (Azaion.Annotations)

Derived from the **six-component** breakdown (user choice **B**: Annotations REST split from realtime + RabbitMQ sync).

```mermaid
flowchart LR
  subgraph platform [06 Platform]
    DB[(PostgreSQL)]
    AUTH[JWT / refresh]
    PATH[Paths + errors]
  end

  subgraph media [03 Media]
    MAPI["/media"]
  end

  subgraph annRest [01 Annotations REST]
    ARAPI["/annotations REST + files"]
  end

  subgraph annRT [02 Annotations realtime and sync]
    SSE["SSE /events"]
    RMQ[RabbitMQ stream]
  end

  subgraph dataset [04 Dataset]
    DAPI["/dataset DATASET"]
  end

  subgraph settings [05 Settings and metadata]
    SAPI["/settings /classes"]
  end

  platform --> media
  platform --> annRest
  platform --> annRT
  platform --> dataset
  platform --> settings
  media --> annRest
  annRest --> annRT
  annRest --> dataset
```

**Shared source file:** `AnnotationsController.cs` is **split by concern** between **01** (REST + static files) and **02** (SSE `Events` action).