questions about order structure

Regarding the order status, the docs say:

'status':     'open',         // 'open', 'closed', 'canceled'

If an order is partially filled and then cancelled, what should the status be?

Regarding the cost:

'cost':        0.076094524,   // 'filled' * 'price' (filling price used where available)

If the filling price isn’t available, should this field be left blank? (I think it should)

[npomfret]

Ok. For what it’s worth I think leaving it blank, rather than potentially providing an inaccurate figure, is best.

[kroitor]

If an order is partially filled and then cancelled, what should the status be?

• status == 'canceled'
• filled > 0
• filled < amount

If the filling price isn’t available, should this field be left blank? (I think it should)

The problem is 3/4 of exchanges do not actually return the filling price or assume filling price = limit price in their engines. So, we only fill it if

• the exchange provides the actual cost in the response, so we don’t have to calculate it
• the exchange doesn’t provide the actual cost from the API we use filled * price with the most accurate price available:
  • if the exchange specifies the filling price – we use that
  • otherwise we use the limit price from the exchange response

Let us know if that doesn’t answer your questions.