interactive-brokers

Here is a script I am using to request market data. I am not subscribed to the data-feed yet, so I though it would automatically return delayed market data, but apparently I have to enable it, but cannot find where to do that. Here is the script and the errors I get, all I need is to receive delayed data, so I can test my algorithm. from ib.opt import ibConnection, message from ib.ext.Contract import Contract from time import sleep def fundamentalData_handler(msg): print(msg) def error_handler(msg): print(msg) tws = ibConnection(port=7496, clientId=100) tws.register(error_handler, message

In https://www.interactivebrokers.com/en/index.php?f=5041&ns=T it is written that in order to use the IB api you have to connect to it through the TWS or IB Gateway. Our API requires connectivity via Trader Workstation (TWS) or IB Gateway. What is the advantage of each? What solution (Gateway or TWS) provides a better performance? The Gateway lacks the GUI of the TWS, but provides the same API. IB writes about the performance: The IB Gateway provides a low-resource alternative to TWS for connecting to the IB trading system via the API. The gateway uses approximately 40% fewer system resources

Following the Interactive Brokers documentation I am trying to obtain the contract details using the below code: from ibapi.client import EClient from ibapi.wrapper import EWrapper class MyWrapper(EWrapper): def contractDetails(self, reqId, contractDetails): super().contractDetails(reqId, contractDetails) print("ContractDetails. ReqId:", reqId, contractDetails.summary.symbol, contractDetails.summary.secType, "ConId:", contractDetails.summary.conId, "@", contractDetails.summary.exchange) def contractDetailsEnd(self, reqId): super().contractDetailsEnd(reqId) print("ContractDetailsEnd. ", reqId,

There are a lot of examples showing how to get particular asset's price from Interactive Brokers. However, when I want to get the whole chain of options for one asset, I don't know which particular strikes are listed. Same for futures, I don't know which expirations are available at the moment. So, i.e., for options, I just loop through all possible strikes and reqMktData for each, also making a sleep(1) every 100 messages to avoid hitting the limit for number of requests per second. Obviously, many of these messages return with error "No security definition has been found for the request".