How to set a cookie on browser startup?

Question

Browsers

I am writing a program (Python or C++) that sends an http request to a web server and receives a response with a cookie. (this is done)
Next, in the program, I want to launch a web browser (an external program) and pass the received cookie to it.
That is, subsequent requests to the server will be made by the browser having a cookie.
Is it possible to do this?

Answer 1

It is impossible in a simple and universal way. Add a variable to the address (GET). On the server, you can check for the presence of a parameter, set a cookie, and redirect by removing the parameter from the URI.