File Uploads

Two distinct flows depending on the destination:

• Channel image by URL — set MessageParams::image to a remote image URL. See examples/guild/reply_image.rs.
• Group / C2C rich media — upload a URL via the reply session's post_file, then send the returned Media with send_media_message. See examples/group/reply_file.rs and examples/c2c/reply_file.rs.

Channel Image

let params = MessageParams {
    content: Some("here you go".into()),
    image: Some("https://example.com/image.png".into()),
    ..Default::default()
};
session.send_message(params).await?;

Group / C2C two-step

let media = session.post_file(/* file_type */ 1, file_url, None).await?;
session.send_media_message(media).await?;

C2CReplySession::post_file + send_media_message follow the exact same pattern. file_type is 1 for image; see the example source for other constants.

See also

• Guide: docs/guide/messages.md
• Examples: examples/guild/reply_image.rs, examples/group/reply_file.rs, examples/c2c/reply_file.rs