'Fetching the order depth with python-binance, but the code does not complete
I am running a python script to fetch all the current order books for all symbols that ends with USDT.
Whenever I try to run it, it fetches the orderbook for the first three symbols (in this case BTCUSDT, ETHUSDT and BNBUSDT). Any takers on what I am messing up here?
I am using this logic to get a list of the symbols and the order book;
import asyncio
import config as c #from config.py
import infinity as inf #userdefined function for infinity (probably not needed)
from binance import AsyncClient, DepthCacheManager, Client
client = Client(c.API_KEY, c.API_SECRET, tld = 'com')
info = client.get_exchange_info()
symbols = info['symbols']
ls = []
for s in symbols:
if 'USDT' in s['symbol']:
#if 'BUSD' not in s['symbol']:
ls.append(s['symbol'])
async def main():
# initialise the client
client = await AsyncClient.create()
for i in ls:
async with DepthCacheManager(client, symbol= i, limit = 10000) as dcm_socket:
depth_cache = await dcm_socket.recv()
symbol = i
asks = depth_cache.get_asks()[:5]
bids = depth_cache.get_bids()[:5]
full = [symbol, asks, bids]
print(full)
if __name__ == "__main__":
loop = asyncio.get_event_loop()
loop.run_until_complete(main())
Solution 1:[1]
It wouldn't complete, because it's not supposed to.
DepthCacheManager is designed to establish a connection (WebSockets), get a snapshot of the order information, and then subscribes to a stream of updates to the current outstanding orders that it applies locally in it's "DepthCache". Each time that gets updated, it deliver the updated set of current asks/bids as you can see.
The trading and orders never stop, so why would it stop?
Solution 2:[2]
Maybe you wana try: https://github.com/LUCIT-Systems-and-Development/unicorn-binance-local-depth-cache
import unicorn_binance_local_depth_cache
ubldc = unicorn_binance_local_depth_cache.BinanceLocalDepthCacheManager(exchange="binance.com")
ubldc.create_depth_cache("LUNABTC")
asks = ubldc.get_asks("LUNABTC")
bids = ubldc.get_bids("LUNABTC")
Thats it :)
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 | Andrew Downing |
| Solution 2 | Oliver |
