# `PUT /article/{sku}/images/order`

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

Reorder article images

Sets `articlepic.sort` to `0..n-1` in the given order.
`fullHashes` must list every image of the article exactly once.


## Path parameters

| Param | Required | Type | Description |
|-------|----------|------|-------------|
| `sku` | yes | string |  |

## Body (JSON)

| Field | Required | Type | Description |
|-------|----------|------|-------------|
| `fullHashes` | yes | string[] |  |

```json
{
  "fullHashes": [
    "aB1cD2eF",
    "gH3iJ4kL"
  ]
}
```

## Signals

On success, emits SSE signal: `article-<sku>` (see [`GET /events`](../events.md)).

## Response `200`

New order

```json
{
  "fullHashes": [
    "…"
  ]
}
```

## Errors

| Status | Description |
|--------|-------------|
| 400 | Invalid image order — `{"error":"…"}` |
| 401 | Unauthorized — `{"error":"…"}` |
| 403 | Not authorized — `{"error":"…"}` |
| 404 | Article not found — `{"error":"…"}` |

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