ccxt_exchanges/bybit/
ws_exchange_impl.rs

1//! WsExchange trait implementation for Bybit
2//!
3//! This module implements the unified `WsExchange` trait from `ccxt-core` for Bybit,
4//! providing real-time WebSocket data streaming capabilities.
5
6use async_trait::async_trait;
7use ccxt_core::{
8    error::{Error, Result},
9    types::{Balance, Ohlcv, Order, OrderBook, Ticker, Timeframe, Trade},
10    ws_client::WsConnectionState,
11    ws_exchange::{MessageStream, WsExchange},
12};
13
14use tokio::sync::mpsc;
15
16use super::Bybit;
17
18/// A simple stream wrapper that converts an mpsc receiver into a Stream
19struct ReceiverStream<T> {
20    receiver: mpsc::UnboundedReceiver<T>,
21}
22
23impl<T> ReceiverStream<T> {
24    #[allow(dead_code)]
25    fn new(receiver: mpsc::UnboundedReceiver<T>) -> Self {
26        Self { receiver }
27    }
28}
29
30impl<T> futures::Stream for ReceiverStream<T> {
31    type Item = T;
32
33    fn poll_next(
34        mut self: std::pin::Pin<&mut Self>,
35        cx: &mut std::task::Context<'_>,
36    ) -> std::task::Poll<Option<Self::Item>> {
37        self.receiver.poll_recv(cx)
38    }
39}
40
41#[async_trait]
42impl WsExchange for Bybit {
43    // ==================== Connection Management ====================
44
45    async fn ws_connect(&self) -> Result<()> {
46        let ws = self.create_ws();
47        ws.connect().await?;
48        Ok(())
49    }
50
51    async fn ws_disconnect(&self) -> Result<()> {
52        let ws = self.create_ws();
53        ws.disconnect().await
54    }
55
56    fn ws_is_connected(&self) -> bool {
57        // Without persistent state tracking, return false
58        // In a full implementation, we'd track the active connection
59        false
60    }
61
62    fn ws_state(&self) -> WsConnectionState {
63        // Return disconnected since we don't have persistent state
64        WsConnectionState::Disconnected
65    }
66
67    // ==================== Public Data Streams ====================
68
69    async fn watch_ticker(&self, symbol: &str) -> Result<MessageStream<Ticker>> {
70        let ws = self.create_ws();
71
72        // Convert unified symbol (BTC/USDT) to Bybit format (BTCUSDT)
73        let bybit_symbol = symbol.replace('/', "");
74
75        // Try to get market info if available (optional)
76        let market = self.base().market(symbol).await.ok().map(|m| (*m).clone());
77
78        ws.watch_ticker(&bybit_symbol, market).await
79    }
80
81    async fn watch_tickers(&self, _symbols: &[String]) -> Result<MessageStream<Vec<Ticker>>> {
82        // TODO: Implement multi-symbol ticker watching
83        Err(Error::not_implemented(
84            "watch_tickers not yet implemented for Bybit",
85        ))
86    }
87
88    async fn watch_order_book(
89        &self,
90        symbol: &str,
91        limit: Option<u32>,
92    ) -> Result<MessageStream<OrderBook>> {
93        let ws = self.create_ws();
94
95        // Convert unified symbol (BTC/USDT) to Bybit format (BTCUSDT)
96        let bybit_symbol = symbol.replace('/', "");
97
98        ws.watch_order_book(&bybit_symbol, limit).await
99    }
100
101    async fn watch_trades(&self, symbol: &str) -> Result<MessageStream<Vec<Trade>>> {
102        let ws = self.create_ws();
103
104        // Convert unified symbol (BTC/USDT) to Bybit format (BTCUSDT)
105        let bybit_symbol = symbol.replace('/', "");
106
107        // Try to get market info if available (optional)
108        let market = self.base().market(symbol).await.ok().map(|m| (*m).clone());
109
110        ws.watch_trades(&bybit_symbol, market).await
111    }
112
113    async fn watch_ohlcv(
114        &self,
115        _symbol: &str,
116        _timeframe: Timeframe,
117    ) -> Result<MessageStream<Ohlcv>> {
118        Err(Error::not_implemented(
119            "watch_ohlcv not yet implemented for Bybit",
120        ))
121    }
122
123    // ==================== Private Data Streams ====================
124
125    async fn watch_balance(&self) -> Result<MessageStream<Balance>> {
126        Err(Error::not_implemented(
127            "watch_balance not yet implemented for Bybit",
128        ))
129    }
130
131    async fn watch_orders(&self, _symbol: Option<&str>) -> Result<MessageStream<Order>> {
132        Err(Error::not_implemented(
133            "watch_orders not yet implemented for Bybit",
134        ))
135    }
136
137    async fn watch_my_trades(&self, _symbol: Option<&str>) -> Result<MessageStream<Trade>> {
138        Err(Error::not_implemented(
139            "watch_my_trades not yet implemented for Bybit",
140        ))
141    }
142
143    // ==================== Subscription Management ====================
144
145    async fn subscribe(&self, _channel: &str, _symbol: Option<&str>) -> Result<()> {
146        Err(Error::not_implemented(
147            "subscribe not yet implemented for Bybit",
148        ))
149    }
150
151    async fn unsubscribe(&self, _channel: &str, _symbol: Option<&str>) -> Result<()> {
152        Err(Error::not_implemented(
153            "unsubscribe not yet implemented for Bybit",
154        ))
155    }
156
157    fn subscriptions(&self) -> Vec<String> {
158        Vec::new()
159    }
160}
ccxt_exchanges/bybit/ws_exchange_impl.rs

ccxt_exchanges/bybit/
ws_exchange_impl.rs
