Merge pull request #1858 from vigarbuaa/master

[add] add alpaca gateway to vnpy
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vn.py 2019-06-25 10:31:02 +08:00 committed by GitHub
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3 changed files with 588 additions and 4 deletions

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@ -256,12 +256,14 @@ class RestClient(object):
proxies=self.proxies,
)
request.response = response
status_code = response.status_code
if status_code // 100 == 2: # 2xx都算成功尽管交易所都用200
try:
jsonBody = response.json()
request.callback(jsonBody, request)
request.status = RequestStatus.success
except:
print("not json body from request, check body: ",response.text)
else:
request.status = RequestStatus.failed

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@ -0,0 +1 @@
from .alpaca_gateway import AlpacaGateway

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@ -0,0 +1,581 @@
# encoding: UTF-8
"""
Author: vigarbuaa
"""
import hashlib
import hmac
import sys
import time
from copy import copy
from threading import Lock
from datetime import datetime
from urllib.parse import urlencode
from vnpy.api.rest import Request, RestClient
from vnpy.api.websocket import WebsocketClient
from vnpy.event import Event
from vnpy.trader.event import EVENT_TIMER
from vnpy.trader.constant import (
Direction,
Exchange,
OrderType,
Product,
Status,
Offset,
Interval
)
from vnpy.trader.gateway import BaseGateway
from vnpy.trader.object import (
TickData,
OrderData,
TradeData,
PositionData, AccountData,
ContractData,
OrderRequest,
CancelRequest,
SubscribeRequest,
)
REST_HOST = "https://api.alpaca.markets"
WEBSOCKET_HOST = "wss://api.alpaca.markets/stream" # Market Data
PAPER_REST_HOST = "https://paper-api.alpaca.markets"
PAPER_WEBSOCKET_HOST = "wss://paper-api.alpaca.markets/stream" # Market Data
KEY = ""
SECRET = ""
STATUS_ALPACA2VT = {
"new": Status.SUBMITTING,
"partial_fill": Status.PARTTRADED,
"fill": Status.ALLTRADED,
"cancelled": Status.CANCELLED,
# "done_for_day": Status.CANCELLED,
"expired": Status.NOTTRADED
}
DIRECTION_VT2ALPACA = {Direction.LONG: "buy", Direction.SHORT: "sell"}
DIRECTION_ALPACA2VT = {"buy": Direction.LONG, "sell": Direction.SHORT,
"long": Direction.LONG, "short": Direction.SHORT}
ORDERTYPE_VT2ALPACA = {
OrderType.LIMIT: "limit",
OrderType.MARKET: "market"
}
ORDERTYPE_ALPACA2VT = {v: k for k, v in ORDERTYPE_VT2ALPACA.items()}
GLOBAL_ORDER = {}
class AlpacaGateway(BaseGateway):
"""
VN Trader Gateway for Alpaca connection.
"""
default_setting = {
"key": "",
"secret": "",
"session": 3,
"服务器": ["REAL", "PAPER"],
"proxy_host": "127.0.0.1",
"proxy_port": 1080,
}
def __init__(self, event_engine):
"""Constructor"""
super(AlpacaGateway, self).__init__(event_engine, "ALPACA")
self.rest_api = AlpacaRestApi(self)
self.ws_api = AlpacaWebsocketApi(self)
self.order_map = {}
def connect(self, setting: dict):
""""""
key = setting["key"]
secret = setting["secret"]
session = setting["session"]
proxy_host = setting["proxy_host"]
proxy_port = setting["proxy_port"]
env = setting['服务器']
rest_url = REST_HOST if env == "REAL" else PAPER_REST_HOST
websocket_url = WEBSOCKET_HOST if env == "REAL" else PAPER_WEBSOCKET_HOST
self.rest_api.connect(key, secret, session,
proxy_host, proxy_port, rest_url)
self.ws_api.connect(key, secret, proxy_host, proxy_port, websocket_url)
self.init_query()
def subscribe(self, req: SubscribeRequest):
""""""
self.ws_api.subscribe(req)
def send_order(self, req: OrderRequest):
""""""
return self.rest_api.send_order(req)
def cancel_order(self, req: CancelRequest):
""""""
self.rest_api.cancel_order(req)
def query_account(self):
""""""
self.rest_api.query_account()
def query_position(self):
""""""
self.rest_api.query_position()
def close(self):
""""""
self.rest_api.stop()
self.ws_api.stop()
def process_timer_event(self, event: Event):
""""""
self.count += 1
if self.count < 5:
return
self.query_account()
self.query_position()
def init_query(self):
""""""
self.count = 0
self.event_engine.register(EVENT_TIMER, self.process_timer_event)
def process_timer_event(self, event: Event):
""""""
self.count += 1
if self.count < 5:
return
else:
self.count = 0
self.query_account()
self.query_position()
class AlpacaRestApi(RestClient):
"""
Alpaca REST API
"""
def __init__(self, gateway: BaseGateway):
""""""
super(AlpacaRestApi, self).__init__()
self.gateway = gateway
self.gateway_name = gateway.gateway_name
self.key = ""
self.secret = ""
self.order_count = 1_000_000
self.order_count_lock = Lock()
self.connect_time = 0
self.order_dict = {}
def query_account(self):
path = f"/v1/account"
self.add_request(
method="GET",
path=path,
callback=self.on_query_account
)
def on_query_account(self, data, request):
account = AccountData(
accountid=data['id'],
balance=float(data['cash']),
frozen=float(data['cash']) - float(data['buying_power']),
gateway_name=self.gateway_name
)
self.gateway.on_account(account)
def query_position(self):
path = f"/v1/positions"
self.add_request(
method="GET",
path=path,
callback=self.on_query_position
)
def on_query_position(self, data, request):
for d in data:
position = PositionData(
symbol=d['symbol'],
exchange=Exchange.ALPACA,
direction=DIRECTION_ALPACA2VT[d['side']],
volume=d['qty'],
price=round(d['avg_entry_price'], 3),
pnl=d['unrealized_pl'],
gateway_name=self.gateway_name,
)
self.gateway.on_position(position)
def sign(self, request):
"""
Generate Alpaca signature.
"""
headers = {
"APCA-API-KEY-ID": self.key,
"APCA-API-SECRET-KEY": self.secret,
'Content-Type': 'application/json'
}
request.headers = headers
request.allow_redirects = False
return request
def _new_order_id(self):
with self.order_count_lock:
self.order_count += 1
return self.order_count
def connect(
self,
key: str,
secret: str,
session_num: int,
proxy_host: str,
proxy_port: int,
url: str,
):
"""
Initialize connection to REST server.
"""
self.key = key
self.secret = secret
self.init(url, proxy_host, proxy_port)
self.start(session_num)
self.connect_time = (
int(datetime.now().strftime("%y%m%d%H%M%S")) * self.order_count
)
self.gateway.write_log("ALPACA REST API启动成功")
self.query_account()
self.query_position()
# self.query_contracts()
def on_send_order(self, data, request: Request):
remote_order_id = data['id']
order = request.extra
self.order_dict[order.orderid] = remote_order_id
self.gateway.on_order(order)
GLOBAL_ORDER[remote_order_id] = order
def on_failed_order(self, status_code: int, request: Request):
"""
Callback to handle request failed.
"""
order = request.extra
order.status = Status.REJECTED
self.gateway.on_order(order)
msg = f"请求失败,状态码:{status_code},信息:{request.response.text}"
self.gateway.write_log(msg)
def on_error_order(
self, exception_type: type, exception_value: Exception, tb, request: Request
):
"""
Callback to handler request exception.
"""
order = request.extra
order.status = Status.REJECTED
self.gateway.on_order(order)
msg = f"触发异常,状态码:{exception_type},信息:{exception_value}"
print('debug on_error', msg)
self.gateway.write_log(msg)
sys.stderr.write(
self.exception_detail(exception_type, exception_value, tb, request)
)
def cancel_order(self, req: CancelRequest):
""""""
order_id = req.orderid
remote_order_id = self.order_dict[order_id]
if remote_order_id is None:
print("[error]: can not get remote_order_id from local dict!")
return
path = "/v1/orders/" + str(remote_order_id)
self.add_request(
"DELETE",
path,
callback=self.on_cancel_order,
on_error=self.on_cancel_order_error,
extra=req
)
print("come to cancel_order", order_id)
def on_cancel_order(self, data, request):
"""Websocket will push a new order status"""
pass
def on_cancel_order_error(self, exception_type: type, exception_value: Exception, tb, request: Request):
# Record exception if not ConnectionError
if not issubclass(exception_type, ConnectionError):
self.on_error(exception_type, exception_value, tb, request)
def send_order(self, req: OrderRequest):
orderid = str(self.connect_time + self._new_order_id())
raw_dict = {
"symbol": req.symbol,
"qty": int(req.volume),
"side": DIRECTION_VT2ALPACA[req.direction],
"type": ORDERTYPE_VT2ALPACA[req.type],
"time_in_force": 'day',
}
if raw_dict['type'] == "limit":
raw_dict['limit_price'] = float(req.price)
data = raw_dict
order = req.create_order_data(orderid, self.gateway_name)
print("debug send_order orderBody extra: ", order)
self.add_request(
"POST",
"/v1/orders",
callback=self.on_send_order,
data=data,
extra=order,
on_failed=self.on_failed_order,
on_error=self.on_error_order,
# json_str=data,
)
print("debug send_order ret val : ", order.vt_orderid)
return order.vt_orderid
def on_query_contracts(self, data, request: Request):
for instrument_data in data:
symbol = instrument_data['symbol']
contract = ContractData(
symbol=symbol,
exchange=Exchange.ALPACA,
name=symbol,
product=Product.SPOT,
size=1,
pricetick=0.01,
gateway_name=self.gateway_name
)
self.on_contract(contract)
def on_failed_query_contracts(self, status_code: int, request: Request):
pass
def on_error_query_contracts(self, exception_type: type, exception_value: Exception, tb, request: Request):
pass
def query_contracts(self):
params = {"status": "active"}
self.add_request(
"GET",
"/v1/assets",
params=params,
callback=self.on_query_contracts,
on_failed=self.on_failed_query_contracts,
on_error=self.on_error_query_contracts,
)
class AlpacaWebsocketApi(WebsocketClient):
""""""
def __init__(self, gateway):
""""""
super(AlpacaWebsocketApi, self).__init__()
self.gateway = gateway
self.gateway_name = gateway.gateway_name
self.order_id = 1_000_000
# self.date = int(datetime.now().strftime('%y%m%d%H%M%S')) * self.orderId
self.key = ""
self.secret = ""
self.callbacks = {
"trade": self.on_tick,
"orderBook10": self.on_depth,
"execution": self.on_trade,
"order": self.on_order,
"position": self.on_position,
"margin": self.on_account,
"instrument": self.on_contract,
}
self.ticks = {}
self.accounts = {}
self.orders = {}
self.trades = set()
self.tickDict = {}
self.bidDict = {}
self.askDict = {}
self.orderLocalDict = {}
self.channelDict = {} # ChannelID : (Channel, Symbol)
self.channels = ["account_updates", "trade_updates"]
def connect(
self, key: str, secret: str, proxy_host: str, proxy_port: int, url: str
):
""""""
self.key = key
self.secret = secret
self.init(url, proxy_host, proxy_port)
self.start()
def authenticate(self):
""""""
params = {"action": "authenticate", "data": {
"key_id": self.key, "secret_key": self.secret
}}
self.send_packet(params)
def on_authenticate(self):
""""""
params = {"action": "listen", "data": {
"streams": self.channels
}}
self.send_packet(params)
def subscribe(self, req: SubscribeRequest):
self.channels.append("A." + req.symbol)
self.channels.append("Q." + req.symbol)
print("debug subscribe: {} ".format(self.channels))
params = {"action": "listen", "data": {
"streams": self.channels
}}
self.send_packet(params)
def send_order(self, req: OrderRequest):
pass
# ----------------------------------------------------------------------
def cancel_order(self, req: CancelRequest):
""""""
pass
def on_connected(self):
""""""
self.gateway.write_log("Websocket API连接成功")
self.authenticate()
def on_disconnected(self):
""""""
self.gateway.write_log("Websocket API连接断开")
def on_packet(self, packet: dict):
""""""
print("debug on_packet: ", packet)
if "stream" in packet and "data" in packet:
stream_ret = packet['stream']
data_ret = packet['data']
if(stream_ret == "authorization"):
self.handle_auth(packet)
elif(stream_ret == "listening"):
self.gateway.write_log("listening {}".format(data_ret))
else:
self.on_data(packet)
else:
print("unrecognize msg", packet)
# ----------------------------------------------------------------------
def on_data(self, data):
print("on_data is {}".format(data))
stream_ret = data['stream']
data_ret = data['data']
if(stream_ret == "account_updates"):
account = AccountData(
accountid=data_ret['id'],
balance=float(data_ret['cash']),
frozen=float(data_ret['cash']) -
float(data_ret['cash_withdrawable']),
gateway_name=self.gateway_name
)
self.gateway.on_account(account)
elif(stream_ret == "trade_updates"):
d = data_ret['order']
order_id = d['id']
order = GLOBAL_ORDER[order_id]
local_order_id = order.orderid
order.status = STATUS_ALPACA2VT[data_ret['event']]
self.gateway.on_order(order)
if (data_ret['event'] == "fill" or data_ret['event'] == "partial_fill"):
trade = TradeData(
symbol=d["symbol"],
exchange=Exchange.ALPACA,
orderid=local_order_id,
tradeid=d['id'],
direction=DIRECTION_ALPACA2VT[d["side"]],
price=d["filled_avg_price"],
volume=d["filled_qty"],
time=data_ret["timestamp"][11:19],
gateway_name=self.gateway_name,
)
self.gateway.on_trade(trade)
else:
pass
# ----------------------------------------------------------------------
def handle_auth(self, data):
stream_ret = data['stream']
data_ret = data['data']
if (data_ret['status'] == "authorized"):
print("authorization success!!!")
self.gateway.write_log("authorization success!!!")
self.on_authenticate()
elif (data_ret['status'] == "unauthorized"):
print("authorization failed!!!")
self.gateway.write_log("authorization failed!!!")
else:
print("??unhandled status: ", data)
# ----------------------------------------------------------------------
def on_response(self, data):
""""""
pass
# ----------------------------------------------------------------------
def on_update(self, data):
""""""
pass
# ----------------------------------------------------------------------
def on_error(self, exception_type: type, exception_value: Exception, tb):
""""""
print("on_error: ", type, Exception, tb)
sys.stderr.write(
self.exception_detail(exception_type, exception_value, tb)
)
def subscribe_topic(self):
pass
def on_tick(self, d):
""""""
pass
def on_depth(self, d):
""""""
pass
def on_trade(self, d):
""""""
pass
def generateDateTime(self, s):
"""生成时间"""
dt = datetime.fromtimestamp(s / 1000.0)
time = dt.strftime("%H:%M:%S.%f")
return time
def on_order(self, data):
""""""
pass
def on_position(self, d):
""""""
pass
def on_account(self, d):
""""""
pass
def on_contract(self, d):
""""""
pass