Headers
| Header | Required | Description |
|---|---|---|
relay-key | Yes | Your Relay key |
post-code | Yes | The share code of the post to append to |
include-metadata | No | true to keep file metadata. Omitted or false strips it (default). |
Behavior
- You must own the post.
- The post cannot be moderated. Moderated posts reject modifications.
- Albums cap at 9 files total. Requests that would exceed the cap are rejected.
- Newly added files inherit the post’s existing privacy. If the post is private, returned
urls are signed with a 24-hour expiry. - Video files (
.mp4,.mov,.mkv) are remuxed to MP4 with+faststart. See File Types for details. - Metadata (EXIF on images, container metadata on videos) is stripped by default. Send
include-metadata: trueto keep it. - Each new file is auto-moderated. If any file (or the post’s title or description) is flagged, the entire post, including existing files, is quarantined and marked
moderated.
Examples
Add two images to an existing album:Responses
failed array is included alongside files:

