Echo Bot

The plain "@-me, I reply" pattern is implemented in examples/guild/reply_text.rs. It registers Intents::new().with_public_guild_messages(), implements EventHandler::message_create, and uses session.reply to send a string back. That is the entire surface of a guild-channel echo bot in BotRS.

The one call you need

session.reply(&reply_content) posts a reply that is automatically threaded to the inbound message. There is no builder for the simple case.

async fn message_create(&self, mut session: ChannelReplySession) {
    let message = session.message().clone();
    let reply = format!("echo: {}", message.content);
    if let Err(e) = session.reply(&reply).await {
        tracing::warn!("reply failed: {e}");
    }
}

If you want the reply quoted as a reference instead of a plain mention, use MessageParams with message_reference; see Text Messages and examples/guild/reply_reference.rs.

See also

• Guide: docs/guide/messages.md
• Example: examples/guild/reply_text.rs
• Run with cargo run --example guild_reply_text --features examples