CODEWITHSUNDEEP
python-3.xwebsockettradingalgorithmic-tradingalpaca
Ryan Marshall
Ryan Marshall

Reputation: 31

Alpaca trading "error: invalid syntax (400)"

I'm having an issue running a very simple script to pull in live data data from their web socket.

I wrote a simple script to connect to the websocket and get a non descriptive error with no python exception

$ python3.9 bot.py 
error: invalid syntax (400)

bot.py

import traceback
from alpaca_trade_api.common import URL
from alpaca_trade_api.stream import Stream


symbol = 'BTCUSD'

ALPACA_API_KEY = "{{APIKEY}}"
ALPACA_SECRET_KEY = "{{SECRETKEY}}"

async def print_crypto_bars(t):
    print('crypto bar', t)

# Initiate Class Instance
stream = Stream(key_id=ALPACA_API_KEY,
                secret_key=ALPACA_SECRET_KEY,
                base_url=URL('https://paper-api.alpaca.markets'),
                raw_data=True)

stream.subscribe_crypto_bars(print_crypto_bars, symbol)

@stream.on_crypto_bar(symbol)
async def _(bar):
    print('@on_crypto_bar', bar)

try:
    stream.run()
except Exception:
    traceback.print_exc()

I've found nothing online to help diagnose this with alpaca client lib

Upvotes: 0

Views: 609

Answers (1)

Ryan Marshall
Ryan Marshall

Reputation: 31

I ended up creating my own client for alpaca manually to disect this non-descript issue.

I ended up finding it was the symbol

was

symbol = 'BTCUSD'

... causing "error: invalid syntax (400)"

changed to

symbol = 'BTC/USD'

Upvotes: 0

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