HttpClientHandler / HttpClient Memory Leak

Question

I have anywhere from 10-150 long living class objects that call methods performing simple HTTPS API calls using HttpClient. Example of a PUT call:

Answer 1

This is how I change the HttpClientHandler proxy without recreating the object.

public static void ChangeProxy(this HttpClientHandler handler, WebProxy newProxy)
{
    if (handler.Proxy is WebProxy currentHandlerProxy)
    {
        currentHandlerProxy.Address = newProxy.Address;
        currentHandlerProxy.Credentials = newProxy.Credentials;
    }
    else
    {
        handler.Proxy = newProxy;
    }
}