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HTTP Proxy for Binance API
Works around DNS/network restrictions by using requests library with custom adapters
"""
import os
import requests
import hashlib
import hmac
from datetime import datetime
from typing import Optional, Dict, Any
import logging
logger = logging.getLogger(__name__)
class BinanceHTTPProxy:
"""
Direct HTTP proxy for Binance API that bypasses ccxt's networking.
Uses Python requests library which may have better compatibility with
containerized environments like HuggingFace Spaces.
"""
def __init__(self, api_key: str, api_secret: str, base_url: str = "https://testnet.binance.vision"):
self.api_key = api_key
self.api_secret = api_secret
self.base_url = base_url.rstrip('/')
self.session = requests.Session()
self.session.headers.update({
'X-MBX-APIKEY': api_key,
'Content-Type': 'application/json',
})
# Check if using Cloudflare proxy
proxy_url = os.getenv('BINANCE_TESTNET_PROXY_URL', '').strip()
if proxy_url:
self.base_url = proxy_url.rstrip('/')
logger.info(f"🌐 Using HTTP proxy: {self.base_url}")
else:
logger.info(f"🌐 Using direct connection: {self.base_url}")
def _sign_request(self, params: Dict[str, Any]) -> str:
"""Generate HMAC SHA256 signature for authenticated requests"""
query_string = '&'.join([f"{k}={v}" for k, v in sorted(params.items())])
signature = hmac.new(
self.api_secret.encode('utf-8'),
query_string.encode('utf-8'),
hashlib.sha256
).hexdigest()
return signature
def get(self, endpoint: str, params: Optional[Dict] = None, signed: bool = False) -> Dict:
"""
Make GET request to Binance API
Args:
endpoint: API endpoint (e.g., '/api/v3/time')
params: Query parameters
signed: Whether to sign the request
Returns:
JSON response as dict
"""
params = params or {}
if signed:
# Add timestamp and recvWindow
params['timestamp'] = int(datetime.now().timestamp() * 1000)
params['recvWindow'] = 60000 # 60 seconds
# Generate signature
signature = self._sign_request(params)
params['signature'] = signature
url = f"{self.base_url}{endpoint}"
try:
logger.debug(f"GET {url} with params: {params}")
response = self.session.get(url, params=params, timeout=10)
response.raise_for_status()
return response.json()
except requests.exceptions.RequestException as e:
logger.error(f"HTTP request failed: {e}")
raise
def post(self, endpoint: str, params: Optional[Dict] = None, signed: bool = False) -> Dict:
"""
Make POST request to Binance API
Args:
endpoint: API endpoint
params: Query parameters
signed: Whether to sign the request
Returns:
JSON response as dict
"""
params = params or {}
if signed:
# Add timestamp and recvWindow
params['timestamp'] = int(datetime.now().timestamp() * 1000)
params['recvWindow'] = 60000 # 60 seconds
# Generate signature
signature = self._sign_request(params)
params['signature'] = signature
url = f"{self.base_url}{endpoint}"
try:
logger.debug(f"POST {url} with params: {params}")
response = self.session.post(url, params=params, timeout=10)
response.raise_for_status()
return response.json()
except requests.exceptions.RequestException as e:
logger.error(f"HTTP request failed: {e}")
raise
def test_connectivity(self) -> bool:
"""Test API connectivity by fetching server time"""
try:
result = self.get('/api/v3/time')
server_time = result.get('serverTime')
logger.info(f"✅ Server time: {server_time}")
return True
except Exception as e:
logger.error(f"❌ Connectivity test failed: {e}")
return False
def get_account(self) -> Dict:
"""Get account information (authenticated)"""
return self.get('/api/v3/account', signed=True)
def get_balance(self, asset: str = 'USDT') -> float:
"""Get balance for specific asset"""
try:
account = self.get_account()
balances = account.get('balances', [])
for balance in balances:
if balance.get('asset') == asset:
return float(balance.get('free', 0.0))
return 0.0
except Exception as e:
logger.error(f"Failed to get balance: {e}")
return 0.0
def get_all_balances(self) -> Dict[str, Dict[str, float]]:
"""Get all non-zero balances"""
try:
account = self.get_account()
balances = account.get('balances', [])
non_zero = {}
for balance in balances:
asset = balance.get('asset')
free = float(balance.get('free', 0))
locked = float(balance.get('locked', 0))
total = free + locked
if total > 0:
non_zero[asset] = {
'free': free,
'used': locked,
'total': total
}
return non_zero
except Exception as e:
logger.error(f"Failed to get balances: {e}")
raise
def get_ticker(self, symbol: str) -> Dict[str, Any]:
"""
Get 24hr ticker price change statistics
Args:
symbol: Trading pair (e.g., 'BTC/USDT')
Returns:
Ticker data
"""
# Convert symbol format: 'BTC/USDT' -> 'BTCUSDT'
binance_symbol = symbol.replace('/', '')
try:
result = self.get('/api/v3/ticker/24hr', params={'symbol': binance_symbol})
return {
'symbol': symbol,
'last': float(result.get('lastPrice', 0)),
'bid': float(result.get('bidPrice', 0)),
'ask': float(result.get('askPrice', 0)),
'high': float(result.get('highPrice', 0)),
'low': float(result.get('lowPrice', 0)),
'volume': float(result.get('volume', 0)),
}
except Exception as e:
logger.error(f"Failed to get ticker: {e}")
raise
def place_market_order(self, symbol: str, side: str, amount: float) -> Optional[Dict]:
"""
Place market order
Args:
symbol: Trading pair (e.g., 'BTC/USDT')
side: 'buy' or 'sell'
amount: Amount in base currency
Returns:
Order response or None if failed
"""
# Convert symbol format: 'BTC/USDT' -> 'BTCUSDT'
binance_symbol = symbol.replace('/', '')
params = {
'symbol': binance_symbol,
'side': side.upper(),
'type': 'MARKET',
'quantity': amount,
}
try:
result = self.post('/api/v3/order', params=params, signed=True)
logger.info(f"✅ Order placed: {result}")
return result
except Exception as e:
logger.error(f"Failed to place order: {e}")
return None
def get_open_orders(self, symbol: Optional[str] = None) -> list:
"""
Get open orders
Args:
symbol: Optional trading pair filter
Returns:
List of open orders
"""
params = {}
if symbol:
# Convert symbol format: 'BTC/USDT' -> 'BTCUSDT'
params['symbol'] = symbol.replace('/', '')
try:
return self.get('/api/v3/openOrders', params=params, signed=True)
except Exception as e:
logger.error(f"Failed to get open orders: {e}")
return []
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