Hiding private details from open source projects

Question

I have a .net github project that is basically a wrapper around a web API. In the test project, I am calling to the API using an API key. I need to keep this key private, how do

Answer 1

You are probably looking for the App.config file for a project. It will be copied to .exe.config when you compile it. Users can edit that config file as needed.

In that config file, you can add your API keys:

Then you can access it from your code using ConfigurationManager.AppSettings:

string apiKey = ConfigurationManager.AppSettings["APIKey"];