Passing multiple betIds for cancelling bets

[steve88]

I have avoided using the python function betfairlightweight.filters.cancel_instruction because seemingly it only takes a single betId. I have built my own string for the instructions field, see example below. But it typically doesn't accepted by the exchange and is rejected. Any ideas what I'm doing wrong? Instructions_String = [{'betId': '199563656722'}, {'betId': '199563649740'}, {'betId': '199563657652'}, {'betId': '199563657654'}, {'betId': '199563656423'}, {'betId': '199563656724'}, {'betId': '199563656424'}, {'betId': '199563656425'}, {'betId': '199563656426'}, {'betId': '199563649744'}, {'betId': '199563649745'}, {'betId': '199563656427'}, {'betId': '199563651106'}, {'betId': '199563651959'}, {'betId': '199563651960'}, {'betId': '199563651961'}, {'betId': '199563649739'}, {'betId': '199563656725'}, {'betId': '199563656726'}, {'betId': '199563642204'}, {'betId': '199563642205'}, {'betId': '199563656728'}]
order = trading.betting.cancel_orders( market_id = '1.23472634287', instructions = Instructions_String, )

[LiamP]

At a guess it’s because betId should be an integer, do you get an error?

[geoffw123]

Hi

Post the full JSON strings that you are sending down the wire and the response back, it should be fairly easy to spot the problem then.

[steve88]

Dumb question. I'm using pycharm. How do I print the json strings for this command: order = trading.betting.cancel_orders( market_id = '1.23472634287', instructions = Instructions_String, )?

[LiamP]

Dumb question. I'm using pycharm. How do I print the json strings for this command: order = trading.betting.cancel_orders( market_id = '1.23472634287', instructions = Instructions_String, )?

Easiest way is the following:

bet_ids = [199602103325, 199602103474]
instructions = [filters.cancel_instruction(bet_id) for bet_id in bet_ids]
cancel_order = trading.betting.cancel_orders(market_id='1.170322166', instructions=instructions)
print(cancel_order._response.request.body)

{"jsonrpc":"2.0","method":"SportsAPING\/v1.0\/cancelOrders","params":{"marketId":"1.170322166","instructions":[{"betId":199602103325},{"betId":199602103474}]},"id":1}

But the error raised will also show it.

Note that the market_id is invalid or have you changed it?

[geoffw123]

Hi

I do it a different way than Liam suggested, I use a free App called Fiddler 4, which allows you to view the data going up and down the wire in different formats. You can click on the JSON tab or the Raw Tab to see it in both formats. Monitoring the actual comms removes any doubt as to what your software is doing at the lower levels.

[jabe]

I'm pretty sure that numeric strings can be passed to integer variables. In certain cases, I have recommended putting what appear to be numbers within strings - it's a must for market ids, otherwise a market id like 1.2345670 will become 1.234567.