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ActionConfirmOrder.confirm_order does not return interpretable error message

See original GitHub issue

When the order confirmation fails (can be due to eg. tick size being wrong, connection with exchange down, maintenance window etc) the order confirmation fails scilently and returns none.

Changing the code below in action_confirm_order.py will instead return the error message in a dictionary (making it possible for example to get the correct tick size, if that’s the cause of the error)

<original>
        try:
            response_raw = session.send(prepped, verify=False)
            response_raw.raise_for_status()
            response_dict = response_raw.json()
        except Exception as e:
            logger.fatal(response_raw)
            logger.fatal(e)
            return None
</original>

<modified>
        try:
            response_raw = session.send(prepped, verify=False)
            response_dict = response_raw.json()
            response_raw.raise_for_status()
        except Exception as e:
            logger.fatal(response_raw)
            logger.fatal(e)
            return response_dict
</modified>