Attachment

Renders message attachments inside MessageList. This is the default component for the Attachment prop.

It selects the correct renderer by attachment type (card, Giphy, file, etc.). For customization, use type-specific props like Giphy, Gallery, UrlPreview, or FileAttachment. See Attachment Customization for details.

Pending local attachments can render upload progress in MessageList. Image and video attachments use AttachmentUploadIndicator through Gallery and VideoThumbnail; file and audio attachments render the same upload state in their preview metadata.

Best Practices

Prefer type-specific overrides (Gallery, FileAttachment) over replacing the whole Attachment component.
Handle unknown or custom attachment types gracefully via the UnsupportedAttachment override.
Keep attachment rendering lightweight to avoid list jank.
Ensure URL previews and media rendering are consistent with your app theme.

Props

Prop	Description	Type
`attachment`	Attachment object to render. Typically an item from `message.attachments` (for example, `message.attachments[0]`).	`object`

UI Component Props

Prop	Description	Type
`AudioAttachment`	Renders `audio` and voice-recording attachments in `MessageList`. Defaults to `AudioAttachment`.	`ComponentType`
`FileAttachment`	Renders `file` attachments in `MessageList`. Defaults to `FileAttachment`.	`ComponentType`
`Gallery`	Renders `image` attachments in `MessageList`. Defaults to `Gallery`.	`ComponentType`
`Giphy`	Renders Giphy attachments in `MessageList`. Defaults to `Giphy`.	`ComponentType`
`UnsupportedAttachment`	Renders attachments whose type is not recognized by the SDK. Defaults to `UnsupportedAttachment`.	`ComponentType`
`UrlPreview`	Renders URL previews in `MessageList`. Defaults to `UrlPreview`.	`ComponentType`
`URLPreviewCompact`	Renders compact URL previews in `MessageList`. Defaults to `URLPreviewCompact`.	`ComponentType`
`urlPreviewType`	Type of URL preview to render. Defaults to `'full'`.	`'full'` \| `'compact'`