twilight-gateway provides a client implementation for Discord's websocket gateway. The primary abstraction is the Shard type. A Shard handles connecting to the gateway, receiving messages, parsing and processing them, and managing connectivity lifecycle tasks such as automatic reconnection, resuming, and identifying.
use std::{env, error::Error};
use twilight_gateway::{EventTypeFlags, Intents, Shard, ShardId, StreamExt as _};
#[tokio::main]
async fn main() -> Result<(), Box<dyn Error + Send + Sync>> {
// Initialize the tracing subscriber.
tracing_subscriber::fmt::init();
// Select rustls backend
rustls::crypto::ring::default_provider().install_default().unwrap();
let token = env::var("DISCORD_TOKEN")?;
let intents = Intents::GUILD_MESSAGES;
let mut shard = Shard::new(ShardId::ONE, token, intents);
tracing::info!("created shard");
while let Some(item) = shard.next_event(EventTypeFlags::all()).await {
let Ok(event) = item else {
tracing::warn!(source = ?item.unwrap_err(), "error receiving event");
continue;
};
tracing::debug!(?event, "event");
}
Ok(())
}
