IP API - update order?

[foible]

I'm working on a front-end for IB and I'd like to be able to update orders, even those that are created by different clients. When the order is created by the same client that's doing the update, the code is simple:

order.m_transmit = true
ibclient.placeOrder(order.m_orderId, contract, order)

When the order comes from a different client, I will get a duplicate orderId error or code[135], msg[Can't find order with id =23018].

I've debated just cancelling the order & resubmitting but since the order can be a part of a OCA group, cancelling outright will cancel all of the orders which is not what I want.

I've tried setting the Client ID to 0, setting the m_clientId of the order and calling ibclient.reqAutoOpenOrders(true) to bind the orders to the app, and while I am getting non-zero order IDs, I can't find a way to modify them.

Has anyone worked around this before? Does anyone have any guesses or ideas to try? I've exhausted all my bright ideas here.

Thanks

 

[rosy2]

Quote from foible:

I'm working on a front-end for IB and I'd like to be able to update orders, even those that are created by different clients. When the order is created by the same client that's doing the update, the code is simple:

order.m_transmit = true
ibclient.placeOrder(order.m_orderId, contract, order)

When the order comes from a different client, I will get a duplicate orderId error or code[135], msg[Can't find order with id =23018].

simplest approach is put the orderIDs in a distributed hashtable or a cache (like memcache) then all the clients can use unique IDs and know what IDs other clients are using.

 

[fullautotrading]

Quote from foible:

I'm working on a front-end for IB and I'd like to be able to update orders, even those that are created by different clients. When the order is created by the same client that's doing the update, the code is simple:

order.m_transmit = true
ibclient.placeOrder(order.m_orderId, contract, order)

When the order comes from a different client, I will get a duplicate orderId error or code[135], msg[Can't find order with id =23018].

I've debated just cancelling the order & resubmitting but since the order can be a part of a OCA group, cancelling outright will cancel all of the orders which is not what I want.

I've tried setting the Client ID to 0, setting the m_clientId of the order and calling ibclient.reqAutoOpenOrders(true) to bind the orders to the app, and while I am getting non-zero order IDs, I can't find a way to modify them.

Has anyone worked around this before? Does anyone have any guesses or ideas to try? I've exhausted all my bright ideas here.

Thanks

In the order status event you receive also the clientId (it's one of the properties of the DTwsEvents_orderStatusEvent).

So orders of other clients can simply be ignored.
Each client will clearly deal with its own orders.

Tom

 

[rosy2]

Quote from foible:
I'm working on a front-end for IB and I'd like to be able to update orders, even those that are created by different clients.

Quote from fullautotrading:

In the order status event you receive also the clientId (it's one of the properties of the DTwsEvents_orderStatusEvent).

So orders of other clients can simply be ignored.
Each client will clearly deal with its own orders.

he wants clients to update <b> any </b> order