Binance fetchOpenOrders returns nothing

• OS: MacOS 10.14.5
• Programming Language version: Python 3.6.4
• CCXT version: 19.1.1
• Exchange: Binance
• Method: fetchOpenOrders

Here is a code snippet. No matter how many open orders I have in Binance I keep getting nothing returned from the function.

#fetch all the open orders of the user, get their order id and put them in a list
openorderids = []
orders = binance.fetchOpenOrders(pair)
print("Orders: ", orders)
for each in orders:
     openorderids.append(each['info']['orderId'])
#Cancelling all open orders
for id in openorderids:
     binance.cancelOrder(id, pair)

[magnitis]

@andy3520 after talking several times with the Binance devs, they confirmed that this is a known REST API issue from their side during volatile markets. I ended creating something bespoke using Websockets and caching the updates using a queue system (on Python 3).

[kroitor]

@rori4 sometimes the order is not returned on your first attempt, but returned immediately afterwards on a retry – i think this is related to the messaging queue pipe on the Binance side. So, your order is accepted, but due to a mooning BTC, the number of requests and the overall load from all users in general is so high that it takes time to process the order, and your fetchOpenOrders request does not see it on first attempt. Also, you may want to check this: https://github.com/ccxt/ccxt/wiki/Manual#rate-limit, i’m assuming you have enabled it.