Hi Francois,
thx for the links.
All of this leaves me really speachless about the quality of the IB API.
I am a professional software developer since >30years, but a function like reqSecDefOptParams?plays in the primary league of "worst design never".
Not only does it return invalid data, but the concept inherently leads to massive server requests.
So sad, and since this topic is years old, IB obviously does not care.
Do they even have a valid email adress to their developers?
