## Download an attachment's bytes

**get** `/v1/attachments/{att}/content`

Downloads an attachment's stored bytes, verbatim, under its stored MIME
type.

**Behavior**

- Served with `Content-Disposition: attachment` and
  `X-Content-Type-Options: nosniff`: the bytes are caller-supplied
  content, not a page this origin vouches for.
- Same brand scope and the same 404 posture as the metadata read.

**Errors**

- HTTP 409 `code` 2007: the bytes are not stored yet. Wait
  and retry.
- HTTP 422 `code` 2053: the bytes never arrived and never will.
  Upload again. Only the 409 is worth retrying.
- Read `GET /v1/attachments/{att}` for the current `status`.

### Path Parameters

- `att: string`

### Example

```http
curl https://messages.api.linqapp.com/v1/attachments/$ATT/content \
    -H "Authorization: Bearer $LINQ_AMB_API_KEY"
```