(sorry if the terminology/explanation isn't right) I want to print "My account balance in USD is: xxx". The purpose is to understand how to use the class method parameter (not sure if this is the right terminology) as a code input However, the result is: "My account balance in USD is: None". Account balance is printed but on a separate line.
from ibapi.wrapper import EWrapper # handles incoming messages
from ibapi.contract import Contract
from ibapi.order import *
import threading
import time
class IBapi(EWrapper, EClient):
def __init__(self):
EClient.__init__(self, self)
self.contract_details = {}
self.bardata = {} # initialise directory to store bar data
self.USD_cash_balance = 0
def nextValidId(self, orderId: int):
super().nextValidId(orderId)
self.nextorderId = orderId
print('The next valid order id is: ', self.nextorderId)
def accountSummary(self, reqId: int, account: str, tag: str, value: str,
currency: str):
if tag == "CashBalance":
print(value)
IBapi.USD_cash_balance = value
if reqId == 131:
return value
def run_loop():
app.run() # starts communication with TWS
app = IBapi()
app.nextorderId = None
app.connect('127.0.0.1', 7497, 123)
# Start the socket in a thread
api_thread = threading.Thread(target=run_loop, daemon=True) # Algo doesn't have "daemon=True"
api_thread.start()
# Check if the API is connected via orderid
while True:
if isinstance(app.nextorderId,
int): # the IB API sends out the next available order ID as soon as connection is made
# The isinstance() function returns True if the specified object is of the specified type, otherwise False.
print('connected')
break
else:
print('waiting for connection')
time.sleep(2)
print("My account balance in USD is: " + str(app.reqAccountSummary(131, "All", "$LEDGER:USD")))
First you don't assign USD_cash_balance to the class but the class instance (using self instead of class name). Secondly, you have to wait for a reply and there's many ways to do this. One is to wait for the value and sleep on it, you can extend it by implementing a timeout/retry if necessary. You can also use a Queue. Also, don't forget to disconnect your session when you're done.
from ibapi.client import EClient
from ibapi.wrapper import EWrapper # handles incoming messages
from ibapi.contract import Contract
from ibapi.order import *
import threading
import time
class IBapi(EWrapper, EClient):
def __init__(self):
EClient.__init__(self, self)
self.contract_details = {}
self.bardata = {} # initialise directory to store bar data
self.USD_cash_balance = 0
def nextValidId(self, orderId: int):
super().nextValidId(orderId)
self.nextorderId = orderId
print('The next valid order id is: ', self.nextorderId)
def accountSummary(self, reqId: int, account: str, tag: str, value: str,
currency: str):
if tag == "CashBalance" and reqId == 131:
self.USD_cash_balance = value
def run_loop():
app.run() # starts communication with TWS
app = IBapi()
app.nextorderId = None
app.connect('127.0.0.1', 7600, 123)
# Start the socket in a thread
api_thread = threading.Thread(target=run_loop, daemon=True) # Algo doesn't have "daemon=True"
api_thread.start()
# Check if the API is connected via orderid
while True:
if isinstance(app.nextorderId,
int): # the IB API sends out the next available order ID as soon as connection is made
# The isinstance() function returns True if the specified object is of the specified type, otherwise False.
print('connected')
break
else:
print('waiting for connection')
time.sleep(2)
while not getattr(app, 'USD_cash_balance', None):
app.reqAccountSummary(131, "All", "$LEDGER:USD")
time.sleep(0.5)
print("My account balance in USD is: " + app.USD_cash_balance)
app.disconnect()