Split existing live-open case into its own block

open_order_loading
Tyler Goodlet 2022-08-11 22:48:01 -04:00
parent e2cd8c4aef
commit f6ba95a6c7
1 changed files with 96 additions and 94 deletions

View File

@ -741,6 +741,57 @@ async def handle_order_updates(
txid, update_msg = list(order_msg.items())[0] txid, update_msg = list(order_msg.items())[0]
match update_msg: match update_msg:
# EMS-unknown live order that needs to be
# delivered and loaded on the client-side.
case {
'userref': reqid,
# during a fill this field is **not**
# provided! but, it is always avail on
# actual status updates.. see case above.
'status': status,
**rest,
} if (
ids.inverse.get(reqid) is None
):
# parse out existing live order
descr = rest['descr']
fqsn = descr['pair'].replace(
'/', '').lower()
price = float(descr['price'])
size = float(rest['vol'])
action = descr['type']
# register the userref value from
# kraken (usually an `int` staring
# at 1?) as our reqid.
reqids2txids[reqid] = txid
oid = str(reqid)
ids[oid] = reqid # NOTE!: str -> int
# fill out ``Status`` + boxed ``Order``
status_msg = Status(
time_ns=time.time_ns(),
resp='open',
oid=oid,
reqid=reqid,
# embedded order info
req=Order(
action=action,
exec_mode='live',
oid=oid,
symbol=fqsn,
account=acc_name,
price=price,
size=size,
),
src='kraken',
)
apiflows[reqid].maps.append(status_msg)
await ems_stream.send(status_msg)
continue
# XXX: eg. of full msg schema: # XXX: eg. of full msg schema:
# {'avg_price': _, # {'avg_price': _,
# 'cost': _, # 'cost': _,
@ -819,105 +870,56 @@ async def handle_order_updates(
) )
oid = ids.inverse.get(reqid) oid = ids.inverse.get(reqid)
# XXX: too fast edit handled by the
# request handler task: this
# scenario occurs when ems side
# requests are coming in too quickly
# such that there is no known txid
# yet established for the ems
# dialog's last reqid when the
# request handler task is already
# receceiving a new update for that
# reqid. In this case we simply mark
# the reqid as being "too fast" and
# then when we get the next txid
# update from kraken's backend, and
# thus the new txid, we simply
# cancel the order for now.
# TODO: Ideally we eventually
# instead make the client side of
# the ems block until a submission
# is confirmed by the backend
# instead of this hacky throttle
# style approach and avoid requests
# coming in too quickly on the other
# side of the ems, aka the client
# <-> ems dialog.
if ( if (
status == 'open' status == 'open'
and ( and isinstance(
# XXX: too fast edit handled by the reqids2txids.get(reqid),
# request handler task: this TooFastEdit
# scenario occurs when ems side
# requests are coming in too quickly
# such that there is no known txid
# yet established for the ems
# dialog's last reqid when the
# request handler task is already
# receceiving a new update for that
# reqid. In this case we simply mark
# the reqid as being "too fast" and
# then when we get the next txid
# update from kraken's backend, and
# thus the new txid, we simply
# cancel the order for now.
# TODO: Ideally we eventually
# instead make the client side of
# the ems block until a submission
# is confirmed by the backend
# instead of this hacky throttle
# style approach and avoid requests
# coming in too quickly on the other
# side of the ems, aka the client
# <-> ems dialog.
(toofast := isinstance(
reqids2txids.get(reqid),
TooFastEdit
))
# pre-existing open order NOT from
# this EMS session.
or (noid := oid is None)
) )
): ):
if toofast: # TODO: don't even allow this case
# TODO: don't even allow this case # by not moving the client side line
# by not moving the client side line # until an edit confirmation
# until an edit confirmation # arrives...
# arrives... log.cancel(
log.cancel( f'Received too fast edit {txid}:\n'
f'Received too fast edit {txid}:\n' f'{update_msg}\n'
f'{update_msg}\n' 'Cancelling order for now!..'
'Cancelling order for now!..' )
) # call ws api to cancel:
# call ws api to cancel: # https://docs.kraken.com/websockets/#message-cancelOrder
# https://docs.kraken.com/websockets/#message-cancelOrder await ws.send_msg({
await ws.send_msg({ 'event': 'cancelOrder',
'event': 'cancelOrder', 'token': token,
'token': token, 'reqid': reqid or 0,
'reqid': reqid or 0, 'txid': [txid],
'txid': [txid], })
}) continue
continue
# a non-ems-active order, emit live
# order embedded in status msg.
elif noid:
# parse out existing live order
descr = rest['descr']
fqsn = descr['pair'].replace(
'/', '').lower()
price = float(descr['price'])
size = float(rest['vol'])
action = descr['type']
# register the userref value from
# kraken (usually an `int` staring
# at 1?) as our reqid.
reqids2txids[reqid] = txid
oid = str(reqid)
ids[oid] = reqid # NOTE!: str -> int
# fill out ``Status`` + boxed ``Order``
status_msg = Status(
time_ns=time.time_ns(),
resp='open',
oid=oid,
reqid=reqid,
# embedded order info
req=Order(
action=action,
exec_mode='live',
oid=oid,
symbol=fqsn,
account=acc_name,
price=price,
size=size,
),
src='kraken',
)
apiflows[reqid].maps.append(status_msg)
await ems_stream.send(status_msg)
continue
# send BrokerdStatus messages for all # send BrokerdStatus messages for all
# order state updates # order state updates