cancel_order_by_client_id throws Transaction simulation failed

[aqt01]

I cannot cancel my orders using cancel_order_by_client_id . Below there's a quick PoC

payer = Account()
open_orders_account = market.find_open_orders_accounts_for_owner(owner_address=PublicKey("account_address"))

market.cancel_order_by_client_id(owner=payer,open_orders_account=PublicKey(open_orders_account[0].address), client_id=0,  opts=TxOpts(skip_confirmation=True))

But it throws the following err

{'code': -32002, 'message': 'Transaction simulation failed: Error processing Instruction 0: custom program error: 0x1000680', 'data': {'err': {'InstructionError': [0, {'Custom': 16778880}]}, 'logs': ['Program EUqojwWA2rd19FZrzeBncJsm38Jm1hEhE3zsmX3bRc2o invoke [1]', 'Program EUqojwWA2rd19FZrzeBncJsm38Jm1hEhE3zsmX3bRc2o consumed 1270 of 200000 compute units', 'Program EUqojwWA2rd19FZrzeBncJsm38Jm1hEhE3zsmX3bRc2o failed: custom program error: 0x1000680']}}
*** Exception: Failed to send transaction

I really don't know what i'm missing or if i'm introducing any invalid arg data and the err doesn't help me much to understand where is the issue

[leofisG]

I can reproduce your error. I also tried with serum-ts but it's also not working. Will you be able to try serum-ts and confirm that it's not working either? I suspect it might be due to some change in the DEX.

[leofisG]

Ok I think the main problem is that clientId of 0 will not work. When you place the order try to set a non-zero client id, and only then you can cancel it (at least for the time being). It's the issue on the DEX end, so there is not much that I can do unfortunately and I think it's a bit confusing...

More information can be found here.

[michaelhly]

@aqt01 You're failing this assertion check.

https://github.com/project-serum/serum-dex/blob/cb43d3707fef74dd59bb293475c9a74467a19d65/dex/src/state.rs#L1670

Not sure why you're providing 0 as your client_id. But the code is working as intended.

Closing this for now. Feel free to re-open if you run into more issues.

[aqt01]

@michaelhly @524119574
Thanks for the help!

I used my client_id 0 because when i find my order this was the used client_id. But anyway i solved the issue using

#61 (comment)