## Get attachment metadata

**get** `/v3/attachments/{attachmentId}`

Retrieve metadata for a specific attachment including file
information, and URLs for downloading.

`status`: (**deprecated** — will be removed in a future API version)

### Path Parameters

- `attachmentId: string`

### Returns

- `id: string`

  Unique identifier for the attachment (UUID)

- `content_type: SupportedContentType`

  Supported MIME types for file attachments and media URLs.

  **Images:** image/jpeg, image/png, image/gif, image/heic, image/heif, image/tiff, image/bmp, image/svg+xml, image/webp, image/x-icon

  **Videos:** video/mp4, video/quicktime, video/mpeg, video/mpeg2, video/x-msvideo, video/3gpp

  **Audio:** audio/mpeg, audio/x-m4a, audio/x-caf, audio/x-wav, audio/x-aiff, audio/aac, audio/midi, audio/amr

  **Documents:** application/pdf, text/plain, text/markdown, text/vcard, text/rtf, text/csv, text/html, text/calendar, text/xml, application/json, application/msword, application/vnd.openxmlformats-officedocument.wordprocessingml.document, application/vnd.ms-excel, application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, application/vnd.ms-powerpoint, application/vnd.openxmlformats-officedocument.presentationml.presentation, application/x-iwork-pages-sffpages, application/x-iwork-numbers-sffnumbers, application/x-iwork-keynote-sffkey, application/epub+zip, application/zip, application/x-gzip

  **Transcoded on delivery:**

  - `audio/x-caf` — CAF files are transcoded to `audio/mp4` for delivery.

  **Deprecated (accepted but transcoded):**

  - `audio/mp3` — Deprecated. Use `audio/mpeg` instead. Files sent as audio/mp3 will be delivered as audio/mpeg.
  - `audio/mp4` — Deprecated. Use `audio/x-m4a` instead. Files sent as audio/mp4 will be delivered as audio/x-m4a.
  - `audio/aiff` — Deprecated. Use `audio/x-aiff` instead. Files sent as audio/aiff will be delivered as audio/x-aiff.
  - `image/tiff` — Accepted, but TIFF images are transcoded to JPEG for delivery.

  **Unsupported:** FLAC, OGG, and executable files are explicitly rejected.

  - `"image/jpeg"`

  - `"image/png"`

  - `"image/gif"`

  - `"image/heic"`

  - `"image/heif"`

  - `"image/tiff"`

  - `"image/bmp"`

  - `"image/svg+xml"`

  - `"image/webp"`

  - `"image/x-icon"`

  - `"video/mp4"`

  - `"video/quicktime"`

  - `"video/mpeg"`

  - `"video/mpeg2"`

  - `"video/x-m4v"`

  - `"video/x-msvideo"`

  - `"video/3gpp"`

  - `"audio/mpeg"`

  - `"audio/mp3"`

  - `"audio/x-m4a"`

  - `"audio/mp4"`

  - `"audio/x-caf"`

  - `"audio/x-wav"`

  - `"audio/x-aiff"`

  - `"audio/aiff"`

  - `"audio/aac"`

  - `"audio/midi"`

  - `"audio/amr"`

  - `"application/pdf"`

  - `"text/plain"`

  - `"text/markdown"`

  - `"text/vcard"`

  - `"text/rtf"`

  - `"text/csv"`

  - `"text/html"`

  - `"text/calendar"`

  - `"application/msword"`

  - `"application/vnd.openxmlformats-officedocument.wordprocessingml.document"`

  - `"application/vnd.ms-excel"`

  - `"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"`

  - `"application/vnd.ms-powerpoint"`

  - `"application/vnd.openxmlformats-officedocument.presentationml.presentation"`

  - `"application/x-iwork-pages-sffpages"`

  - `"application/x-iwork-numbers-sffnumbers"`

  - `"application/x-iwork-keynote-sffkey"`

  - `"application/epub+zip"`

  - `"text/xml"`

  - `"application/json"`

  - `"application/zip"`

  - `"application/x-gzip"`

- `created_at: string`

  When the attachment was created

- `filename: string`

  Original filename of the attachment

- `size_bytes: number`

  Size of the attachment in bytes

- `status: "pending" or "complete" or "failed"`

  **DEPRECATED:** This field is deprecated and will be removed in a future API version.

  - `"pending"`

  - `"complete"`

  - `"failed"`

- `download_url: optional string`

  URL to download the attachment

### Example

```http
curl https://api.linqapp.com/api/partner/v3/attachments/$ATTACHMENT_ID \
    -H "Authorization: Bearer $LINQ_API_V3_API_KEY"
```

#### Response

```json
{
  "id": "550e8400-e29b-41d4-a716-446655440000",
  "filename": "photo.jpg",
  "content_type": "image/jpeg",
  "size_bytes": 1024000,
  "status": "complete",
  "download_url": "https://cdn.linqapp.com/attachments/550e8400-e29b-41d4-a716-446655440000/photo.jpg",
  "created_at": "2024-01-15T10:30:00Z"
}
```