Why does ib_async need to API write access and query on the account information in the background?

[apolloid]

I am wondering why ib_async need API write access when we request for market data which does not need an API write access.

Secondly, when I run the basic example as shown below:

from ib_async import *

ib = IB()
ib.connect('127.0.0.1', 7496, clientId=1)

ib.reqMarketDataType(3)  # Use free, delayed, frozen data
contract = Contract(symbol='AAPL', secType='STK', exchange='NASDAQ')
bars = ib.reqHistoricalData(
    contract, endDateTime='', durationStr='30 D',
    barSizeSetting='1 hour', whatToShow='MIDPOINT', useRTH=True)

# convert to pandas dataframe (pandas needs to be installed):
df = util.df(bars)
print(df)

It works but when I check the IB gateway, it seems to be pulling the account information at all:

15:40:57:422 -> ---073-1-6-DUXXXXXX--UnrealizedPnL--353553.17-BASE-
15:40:57:422 -> ----73-1-6-DUXXXXXX--UnrealizedPnL-34579.49-HKD-
15:40:57:422 -> ----73-1-6-DUXXXXXX--UnrealizedPnL--6007.47-INR-
15:40:57:422 -> ---073-1-6-DUXXXXXX--UnrealizedPnL--4551584.81-JPY-
15:40:57:422 -> ---/73-1-6-DUXXXXXX--UnrealizedPnL--154469.77-SGD-
15:40:57:422 -> ---/73-1-6-DUXXXXXX--UnrealizedPnL--122849.47-USD-
15:40:57:422 -> ---(73-1-6-DUXXXXXX--WarrantValue-0.00-AUD-
15:40:57:422 -> ---)73-1-6-DUXXXXXX--WarrantValue-0.00-BASE-
15:40:57:422 -> ---(73-1-6-DUXXXXXX--WarrantValue-0.00-HKD-
15:40:57:422 -> ---(73-1-6-DUXXXXXX--WarrantValue-0.00-INR-
15:40:57:422 -> ---(73-1-6-DUXXXXXX--WarrantValue-0.00-JPY-
15:40:57:422 -> ---(73-1-6-DUXXXXXX--WarrantValue-0.00-SGD-
15:40:57:422 -> ---(73-1-6-DUXXXXXX-WarrantValue-0.00-USD-

I try to pull similar data using vanilla IBAPI and it does not pull account information:

from ibapi.client import EClient
from ibapi.wrapper import EWrapper
from ibapi.contract import Contract
import time

class IBapi(EWrapper, EClient):
    def __init__(self):
        EClient.__init__(self, self)
        self.historical_data_completed = False
        self.fundamental_data_completed = False
        
    def error(self, reqId, errorCode, errorString, advancedOrderRejectJson=""):
        print(f"Error: {reqId} {errorCode} {errorString}")
        
    def historicalData(self, reqId, bar):
        print(f"Date: {bar.date}, Open: {bar.open}, High: {bar.high}, Low: {bar.low}, Close: {bar.close}, Volume: {bar.volume}")
        
    def historicalDataEnd(self, reqId, start, end):
        print(f"End of historical data from {start} to {end}")
        self.historical_data_completed = True
        self.checkToDisconnect()

    def fundamentalData(self, reqId, data):
        print("\n--- Fundamental Data ---")
        print(data)
        # output to file
        with open("fundamental_data.txt", "w") as f:
            f.write(data)
        print("--- End of Fundamental Data ---\n")
        self.fundamental_data_completed = True
        self.checkToDisconnect()

    def checkToDisconnect(self):
        if self.historical_data_completed and self.fundamental_data_completed:
            print("All data received. Disconnecting.")
            self.disconnect()

def main():
    app = IBapi()
    app.connect('127.0.0.1', 7496, 200)
    time.sleep(1)  # Give time for connection
    
    # Create contract for AAPL
    contract = Contract()
    contract.symbol = "AAPL"
    contract.secType = "STK"
    contract.exchange = "NASDAQ"

    
    print("Requesting AAPL EOD data...")
    
    # Request EOD historical data
    app.reqHistoricalData(
        reqId=1,
        contract=contract,
        endDateTime="",
        durationStr="1 Y",
        barSizeSetting="1 day",
        whatToShow="TRADES",
        useRTH=1,
        formatDate=1,
        keepUpToDate=False,
        chartOptions=[]
    )

    print("Requesting AAPL fundamental data...")
    app.reqFundamentalData(
        reqId=2,
        contract=contract,
        reportType="CalendarReport",
        #"ReportSnapshot","ReportsFinSummary","ReportsOwnership","ReportRatios","ReportsFinStatements","RESC","CalendarReport"
        fundamentalDataOptions=[]
    )
    
    app.run()

if __name__ == "__main__":
    main()

[bknyte]

https://ib-api-reloaded.github.io/ib_async/api.html#ib_async.ib.IB.connect
https://ib-api-reloaded.github.io/ib_async/api.html#ib_async.ib.StartupFetch

Those requests are started by default on connect.