# InboxWebhookMessageAttachmentsInner
## Properties
**r#type** | **String** | Attachment type (image, video, file, sticker, audio, share) |
**url** | **String** | Where to fetch the attachment. The contract depends on direction and platform: inbound WhatsApp media points at the authenticated `GET /v1/whatsapp/media/{mediaId}` and requires `Authorization: Bearer <your API key>`, while outgoing media carries the URL originally supplied and Instagram / Facebook / Telegram carry direct platform CDN links that need no authentication. |
**payload** | Option<**serde_json::Value**> | Additional attachment metadata | [optional]
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