# `POST /article`

Protected. Requires a valid session cookie (`credentials: 'include'`).

Create article

Creates an article under an authorized category (`parentId`).

## Body (JSON)

```json
{
  "parentId": 10,
  "name": "New article"
}
```

## Signals

On success, emits SSE signal: `articles` (see [`GET /events`](../events.md)).

## Response `201`

Created

```json
{
  "article": {
    "id": 1,
    "parentId": 1,
    "name": "…",
    "sku": "…"
  }
}
```

## Errors

| Status | Description |
|--------|-------------|
| 400 | Validation error — `{"error":"…"}` |
| 401 | Unauthorized — `{"error":"…"}` |
| 403 | Not authorized for parent category — `{"error":"…"}` |
| 404 | Parent not found — `{"error":"…"}` |

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