gp_binance_demo/binance_order_flow.py

import threading
import websocket
import json
import pandas as pd
import warnings
import logging
import colorlog

# 忽略 FutureWarning
warnings.simplefilter(action='ignore', category=FutureWarning)

# 配置日志
handler = colorlog.StreamHandler()
handler.setFormatter(colorlog.ColoredFormatter(
    "%(log_color)s%(asctime)s - %(name)s - %(levelname)s \n %(message)s",
    datefmt=None,
    reset=True,
    log_colors={
        'DEBUG': 'cyan',
        'INFO': 'blue',
        'WARNING': 'yellow',
        'ERROR': 'red',
        'CRITICAL': 'bold_red',
    }
))
logger = logging.getLogger("market_monitor")
logger.setLevel(logging.INFO)
logger.addHandler(handler)

# Binance WebSocket API URL
SOCKET_TRADE = "wss://stream.binance.com:9443/ws/btcusdt@trade"
SOCKET_DEPTH = "wss://stream.binance.com:9443/ws/btcusdt@depth20@100ms"

# Initialize the DataFrame
df_trades = pd.DataFrame(columns=['price', 'qty', 'timestamp'])
df_order_book = pd.DataFrame(columns=['bid_price', 'bid_qty', 'ask_price', 'ask_qty'])

previous_order_book = None
fill_probabilities = {}
order_disappearances = {}
order_executions = {}
last_trade_price = None


def on_message_trade(_ws, message):
    global df_trades, order_executions, last_trade_price
    json_message = json.loads(message)
    trade = {
        'price': float(json_message['p']),
        'qty': float(json_message['q']),
        'timestamp': pd.to_datetime(json_message['T'], unit='ms')
    }
    trade_df = pd.DataFrame([trade])
    if not trade_df.empty and not trade_df.isna().all().all():
        df_trades = pd.concat([df_trades, trade_df], ignore_index=True)

        # 记录每个价格的实际成交总量
        price = trade['price']
        last_trade_price = price
        if price not in order_executions:
            order_executions[price] = 0
        order_executions[price] += trade['qty']


def on_message_depth(_ws, message):
    global df_order_book, order_disappearances, previous_order_book
    json_message = json.loads(message)
    bids = json_message['bids'][:10]  # Top 10 bids
    asks = json_message['asks'][:10]  # Top 10 asks
    order_book = {
        'bid_price': [float(bid[0]) for bid in bids],
        'bid_qty': [float(bid[1]) for bid in bids],
        'ask_price': [float(ask[0]) for ask in asks],
        'ask_qty': [float(ask[1]) for ask in asks]
    }
    current_order_book = pd.DataFrame([order_book])

    if previous_order_book is not None:
        # 计算订单消失量
        for level in range(10):
            bid_price = current_order_book['bid_price'].iloc[0][level]
            ask_price = current_order_book['ask_price'].iloc[0][level]
            bid_qty = current_order_book['bid_qty'].iloc[0][level]
            ask_qty = current_order_book['ask_qty'].iloc[0][level]

            prev_bid_qty = previous_order_book['bid_qty'].iloc[0][level]
            prev_ask_qty = previous_order_book['ask_qty'].iloc[0][level]

            # 计算bid订单消失量
            if bid_price not in order_disappearances:
                order_disappearances[bid_price] = 0
            if prev_bid_qty > bid_qty:
                order_disappearances[bid_price] += (prev_bid_qty - bid_qty)

            # 计算ask订单消失量
            if ask_price not in order_disappearances:
                order_disappearances[ask_price] = 0
            if prev_ask_qty > ask_qty:
                order_disappearances[ask_price] += (prev_ask_qty - ask_qty)

    previous_order_book = current_order_book


def on_error(_ws, error):
    logger.error(error)


def on_open(_ws):
    print("### opened ###")


# Create a WebSocket app
ws_trade = websocket.WebSocketApp(SOCKET_TRADE, on_message=on_message_trade, on_error=on_error)
ws_depth = websocket.WebSocketApp(SOCKET_DEPTH, on_message=on_message_depth, on_error=on_error)

# 定义要传递给 run_forever 的参数
http_proxy_host = "127.0.0.1"
http_proxy_port = 7890
proxy_type = "http"
# Run the WebSocket with proxy settings
trade_thread = threading.Thread(target=ws_trade.run_forever, kwargs={
    'http_proxy_host': http_proxy_host,
    'http_proxy_port': http_proxy_port,
    'proxy_type': proxy_type
})
depth_thread = threading.Thread(target=ws_depth.run_forever, kwargs={
    'http_proxy_host': http_proxy_host,
    'http_proxy_port': http_proxy_port,
    'proxy_type': proxy_type
})
trade_thread.start()
depth_thread.start()

stop_event = threading.Event()


# Function to calculate fill probabilities
def calculate_fill_probabilities():
    global order_executions, order_disappearances, fill_probabilities
    fill_probabilities = {}
    for price in order_disappearances:
        if price in order_executions:
            disappearances = order_disappearances[price]
            executions = order_executions[price]
            # 确保成交概率不大于1
            fill_probabilities[price] = min(executions / disappearances, 1) if disappearances > 0 else 0
        else:
            fill_probabilities[price] = 0


# Function to periodically log fill probabilities
def log_fill_probabilities_periodically():
    while not stop_event.is_set():
        calculate_fill_probabilities()
        if fill_probabilities:
            logger.info("Fill Probabilities:\n%s", repr(fill_probabilities))
        stop_event.wait(5)  # 每5秒打印一次


# 启动定期打印线程
log_fill_probabilities_thread = threading.Thread(target=log_fill_probabilities_periodically)
log_fill_probabilities_thread.start()


def stop_all_threads():
    stop_event.set()
    trade_thread.join()
    depth_thread.join()
    log_fill_probabilities_thread.join()

# 停止所有线程（在需要停止时调用）
# stop_all_threads()