C# Backend Interactive Broker Assistance

Job ID: 37798953

Budget: €100 – €101 EUR

I'm in need of a professional who's adept with C# backend, particularly in client API development. The specialist would be in charge of creating a functional HttpClient that's capable of sending HTTP requests and receiving HTTP responses. I need client from existing backend. The project explanation:

I am trying to run Interactive broker Client portal api in c#. My Client will also be written in c# project should be written as Console App or Class Library (if Class Library + Tests). Gateway is easy to set up read in attachements. I tried to write my own client also tried generated client through Nswag not working at all always recieve 403 so it knows it is there but i don't have access to it even i log with real account (not paper one).

Somehow in python it work (tested working) https://stackoverflow.com/questions/69005509/place-an-order-in-interactive-brokers-using-api-request

In c# it does not (only thing i found https://stackoverflow.com/questions/64597071/making-post-request-from-console-app-results-in-error-403-access-denied)

I would like to run endpoint "https://localhost:5000/v1/api/iserver/auth/status",
" https://localhost:5000/v1/api/tickle",
"https://localhost:5000/v1/api/portal/sso/validate"

The api swagger can be downloaded here "https://www.interactivebrokers.com/api/doc.html#tag/CCP-(Beta)/paths/~1ccp~1auth~1init/post"

The very poor documented docu is here "https://interactivebrokers.github.io/cpwebapi/"

Sucess condition get it running, get responses 200 for Get, Post request (not really Rest standard but ok)

In attachement you will find sample of code which is just an example since i will need ,named client, but not running at all (recieving 403).