nautilus-hyperliquid 0.55.0

// -------------------------------------------------------------------------------------------------
//  Copyright (C) 2015-2026 Nautech Systems Pty Ltd. All rights reserved.
//  https://nautechsystems.io
//
//  Licensed under the GNU Lesser General Public License Version 3.0 (the "License");
//  You may not use this file except in compliance with the License.
//  You may obtain a copy of the License at https://www.gnu.org/licenses/lgpl-3.0.en.html
//
//  Unless required by applicable law or agreed to in writing, software
//  distributed under the License is distributed on an "AS IS" BASIS,
//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//  See the License for the specific language governing permissions and
//  limitations under the License.
// -------------------------------------------------------------------------------------------------

use std::{env, time::Duration};

use nautilus_hyperliquid::{
    common::consts::ws_url, http::HyperliquidHttpClient,
    websocket::client::HyperliquidWebSocketClient,
};
use nautilus_model::instruments::{Instrument, InstrumentAny};
use tokio::{pin, signal};

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    nautilus_common::logging::ensure_logging_initialized();

    let args: Vec<String> = env::args().collect();
    let testnet = args.get(1).is_some_and(|s| s == "testnet");

    log::info!("Starting Hyperliquid WebSocket data example");
    log::info!("Testnet: {testnet}");

    // Load instruments first
    let http_client = HyperliquidHttpClient::new(testnet, 60, None)?;
    let instruments = http_client.request_instruments().await?;
    log::info!("Loaded {} instruments", instruments.len());

    // Find BTC-USD-PERP instrument (raw_symbol is "BTC" for BTC-USD-PERP)
    let btc_inst = instruments
        .iter()
        .find(|i| i.raw_symbol().as_str() == "BTC")
        .ok_or("BTC-USD-PERP instrument not found")?;
    let instrument_id = match btc_inst {
        InstrumentAny::CryptoPerpetual(inst) => inst.id,
        _ => return Err("Expected CryptoPerpetual instrument".into()),
    };
    log::info!("Using instrument: {instrument_id}");

    let ws_url = ws_url(testnet);
    log::info!("WebSocket URL: {ws_url}");

    let mut client = HyperliquidWebSocketClient::new(Some(ws_url.to_string()), testnet, None);

    // Cache instruments before connecting
    client.cache_instruments(instruments);

    client.connect().await?;
    log::info!("Connected to Hyperliquid WebSocket");

    // Wait for connection to be fully established
    tokio::time::sleep(Duration::from_millis(500)).await;

    log::info!("Subscribing to trades for {instrument_id}");
    client.subscribe_trades(instrument_id).await?;

    log::info!("Subscribing to BBO for {instrument_id}");
    client.subscribe_quotes(instrument_id).await?;

    // Wait briefly to ensure subscriptions are processed
    tokio::time::sleep(Duration::from_secs(1)).await;

    // Create a future that completes on CTRL+C
    let sigint = signal::ctrl_c();
    pin!(sigint);

    let mut message_count = 0;
    loop {
        tokio::select! {
            Some(message) = client.next_event() => {
                message_count += 1;
                log::info!("Message #{message_count}: {message:?}");
            }
            _ = &mut sigint => {
                log::info!("Received SIGINT, closing connection...");
                client.disconnect().await?;
                break;
            }
            else => break,
        }
    }

    log::info!("Received {message_count} total messages");
    Ok(())
}