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This commit is contained in:
Dobromir Popov
2025-02-12 01:27:38 +02:00
parent 1a15ee934b
commit 33a5588539
6 changed files with 595 additions and 22 deletions
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56
crypto/gogo/data/live_data.py
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@ -7,7 +7,7 @@ from collections import deque
import ccxt.async_support as ccxt
from dotenv import load_dotenv
import platform
class LiveDataManager:
def __init__(self, symbol, exchange_name='mexc', window_size=120):
@ -20,6 +20,7 @@ class LiveDataManager:
self.last_candle_time = None
self.exchange = self._initialize_exchange()
self.lock = asyncio.Lock() # Lock to prevent race conditions
self.is_windows = platform.system() == 'Windows'
def _initialize_exchange(self):
exchange_class = getattr(ccxt, self.exchange_name)
@ -41,15 +42,23 @@ class LiveDataManager:
print(f"Fetching initial candles for {self.symbol}...")
now = int(time.time() * 1000)
since = now - self.window_size * 60 * 1000
try:
candles = await self.exchange.fetch_ohlcv(self.symbol, '1m', since=since, limit=self.window_size)
for candle in candles:
self.candles.append(self._format_candle(candle))
if candles:
self.last_candle_time = candles[-1][0]
print(f"Fetched {len(candles)} initial candles.")
except Exception as e:
print(f"Error fetching initial candles: {e}")
retries = 3
for attempt in range(retries):
try:
candles = await self.exchange.fetch_ohlcv(self.symbol, '1m', since=since, limit=self.window_size)
for candle in candles:
self.candles.append(self._format_candle(candle))
if candles:
self.last_candle_time = candles[-1][0]
print(f"Fetched {len(candles)} initial candles.")
return # Exit the function if successful
except Exception as e:
print(f"Attempt {attempt + 1} failed: {e}")
if self.is_windows and "aiodns needs a SelectorEventLoop" in str(e):
print("aiodns issue detected on Windows. This is a known problem with aiodns and ccxt on Windows.")
if attempt < retries - 1:
await asyncio.sleep(5) # Wait before retrying
print("Failed to fetch initial candles after multiple retries.")
def _format_candle(self, candle_data):
return {
@ -112,16 +121,23 @@ class LiveDataManager:
async def fetch_and_process_ticks(self):
async with self.lock:
since = None if not self.ticks else self.ticks[-1]['timestamp']
try:
# Use fetch_trades (or appropriate method for your exchange) for live ticks.
ticks = await self.exchange.fetch_trades(self.symbol, since=since)
for tick in ticks:
formatted_tick = self._format_tick(tick)
if formatted_tick: # Add the check here
self.ticks.append(formatted_tick)
await self._update_candle(formatted_tick)
except Exception as e:
print(f"Error fetching ticks: {e}")
retries = 3
for attempt in range(retries):
try:
# Use fetch_trades (or appropriate method for your exchange) for live ticks.
ticks = await self.exchange.fetch_trades(self.symbol, since=since)
for tick in ticks:
formatted_tick = self._format_tick(tick)
if formatted_tick: # Add the check here
self.ticks.append(formatted_tick)
await self._update_candle(formatted_tick)
break # Exit the retry loop if successful
except Exception as e:
print(f"Error fetching ticks (attempt {attempt + 1}): {e}")
if self.is_windows and "aiodns needs a SelectorEventLoop" in str(e):
print("aiodns issue detected on Windows. This is a known problem with aiodns and ccxt on Windows.")
if attempt < retries - 1:
await asyncio.sleep(5) # Wait before retrying
async def get_data(self):
async with self.lock: