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use crate::WSClient;
use std::collections::HashMap;
use std::sync::{Arc, Mutex};
use super::{
utils::CHANNEL_PAIR_DELIMITER,
ws_client_internal::{MiscMessage, WSClientInternal},
Candlestick, Level3OrderBook, OrderBook, OrderBookTopK, Ticker, Trade, BBO,
};
use log::*;
use serde_json::Value;
pub(super) const EXCHANGE_NAME: &str = "bithumb";
const WEBSOCKET_URL: &str = "wss://global-api.bithumb.pro/message/realtime";
const CLIENT_PING_INTERVAL_AND_MSG: (u64, &str) = (60, r#"{"cmd":"ping"}"#);
pub struct BithumbWSClient<'a> {
client: WSClientInternal<'a>,
}
fn channels_to_commands(channels: &[String], subscribe: bool) -> Vec<String> {
let mut all_commands: Vec<String> = channels
.iter()
.filter(|ch| ch.starts_with('{'))
.map(|s| s.to_string())
.collect();
let raw_channels: Vec<&String> = channels.iter().filter(|ch| !ch.starts_with('{')).collect();
if !raw_channels.is_empty() {
all_commands.append(&mut vec![format!(
r#"{{"cmd":"{}","args":{}}}"#,
if subscribe {
"subscribe"
} else {
"unsubscribe"
},
serde_json::to_string(&raw_channels).unwrap()
)])
};
all_commands
}
fn on_misc_msg(msg: &str) -> MiscMessage {
let obj = serde_json::from_str::<HashMap<String, Value>>(msg).unwrap();
let code = obj.get("code").unwrap().as_str().unwrap();
let code = code.parse::<i64>().unwrap();
if code < 10000 {
match code {
0 => MiscMessage::Pong,
6 => {
let arr = obj.get("data").unwrap().as_array();
if arr != None && arr.unwrap().is_empty() {
MiscMessage::Misc
} else {
MiscMessage::Normal
}
}
7 => MiscMessage::Normal,
_ => {
debug!("Received {} from {}", msg, EXCHANGE_NAME);
MiscMessage::Misc
}
}
} else {
error!("Received {} from {}", msg, EXCHANGE_NAME);
panic!("Received {} from {}", msg, EXCHANGE_NAME);
}
}
fn to_raw_channel(channel: &str, pair: &str) -> String {
format!("{}{}{}", channel, CHANNEL_PAIR_DELIMITER, pair)
}
#[rustfmt::skip]
impl_trait!(Trade, BithumbWSClient, subscribe_trade, "TRADE", to_raw_channel);
#[rustfmt::skip]
impl_trait!(Ticker, BithumbWSClient, subscribe_ticker, "TICKER", to_raw_channel);
#[rustfmt::skip]
impl_trait!(OrderBook, BithumbWSClient, subscribe_orderbook, "ORDERBOOK", to_raw_channel);
impl<'a> BBO for BithumbWSClient<'a> {
fn subscribe_bbo(&self, _pairs: &[String]) {
panic!("bithumb WebSocket does NOT have BBO channel");
}
}
impl<'a> OrderBookTopK for BithumbWSClient<'a> {
fn subscribe_orderbook_topk(&self, _pairs: &[String]) {
panic!("bithumb does NOT have orderbook snapshot channel");
}
}
impl<'a> Candlestick for BithumbWSClient<'a> {
fn subscribe_candlestick(&self, _symbol_interval_list: &[(String, usize)]) {
panic!("bithumb does NOT have candlestick channel");
}
}
panic_l3_orderbook!(BithumbWSClient);
define_client!(
BithumbWSClient,
EXCHANGE_NAME,
WEBSOCKET_URL,
channels_to_commands,
on_misc_msg,
Some(CLIENT_PING_INTERVAL_AND_MSG),
None
);